Best way to put voltage taps on 30a wire on transformer secondary winding? | Electronics Forum (Circuits, Projects and Microcontrollers)

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It may not display this or other websites correctly.<br />You should upgrade or use an <a href="https://www.google.com/chrome/" target="_blank" rel="noopener">alternative browser</a>.</div> <div class="p-body-header"> <div class="p-title "> <h1 class="p-title-value">Best way to put voltage taps on 30a wire on transformer secondary winding?</h1> </div> <div class="p-description"> <ul class="listInline listInline--bullet"> <li> <i class="fa--xf fal fa-user" aria-hidden="true" title="Thread starter"></i> <span class="u-srOnly">Thread starter</span> <a href="/members/gary350.35041/" class="username u-concealed" dir="auto" data-user-id="35041" data-xf-init="member-tooltip">gary350</a> </li> <li> <i class="fa--xf fal fa-clock" aria-hidden="true" title="Start date"></i> <span class="u-srOnly">Start date</span> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" class="u-concealed"><time class="u-dt" dir="auto" datetime="2024-11-10T06:32:51-0800" data-time="1731249171" data-date-string="Nov 10, 2024" data-time-string="6:32 AM" title="Nov 10, 2024 at 6:32 AM">Nov 10, 2024</time></a> </li> </ul> </div> </div> <div class="p-body-main p-body-main--withSidebar "> <div class="p-body-contentCol"></div> <div class="p-body-sidebarCol"></div> <div class="p-body-content"> <div class="p-body-pageContent"> <div class="block block--messages" data-xf-init="" data-type="post" data-href="/inline-mod/" data-search-target="*"> <span class="u-anchorTarget" id="posts"></span> <div class="block-outer"></div> <div class="block-outer js-threadStatusField"></div> <div class="block-container lbContainer" data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-166888" data-lb-universal="0"> <div class="block-body js-replyNewMessageContainer"> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457277" id="js-post-1457277" > <span class="u-anchorTarget" id="post-1457277"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" > <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip">gary350</a></h4> <h5 class="userTitle message-userTitle" dir="auto">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457277" rel="nofollow" > <time class="u-dt" dir="auto" datetime="2024-11-10T06:32:51-0800" data-time="1731249171" data-date-string="Nov 10, 2024" data-time-string="6:32 AM" title="Nov 10, 2024 at 6:32 AM">Nov 10, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457277" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457277/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457277" rel="nofollow"> #1 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457277" data-lb-caption-desc="gary350 · Nov 10, 2024 at 6:32 AM"> <article class="message-body js-selectToQuote"> <div > <div class="bbWrapper">I need 4 voltage taps on 30 amp wire at turn, 10, 13, 16, 19. What is the best way to make taps on #10 stranded wire?<br /> <br /> <script class="js-extraPhrases" type="application/json"> { "lightbox_close": "Close", "lightbox_next": "Next", "lightbox_previous": "Previous", "lightbox_error": "The requested content cannot be loaded. 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Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457278" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-10T06:49:07-0800" data-time="1731250147" data-date-string="Nov 10, 2024" data-time-string="6:49 AM" title="Nov 10, 2024 at 6:49 AM" itemprop="datePublished">Nov 10, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457278" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457278/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457278" rel="nofollow"> #2 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457278" data-lb-caption-desc="Nigel Goodwin · Nov 10, 2024 at 6:49 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Probably by running separate windings out, and joining them together.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">PIC programmer software, and PIC Tutorials at:<br /> <a href="http://www.winpicprog.co.uk" target="_blank" class="link link--external" rel="noopener">http://www.winpicprog.co.uk</a></div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="ZipZapOuch" data-content="post-1457279" id="js-post-1457279" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457279/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span 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message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457279" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457279/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457279" rel="nofollow"> #3 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457279" data-lb-caption-desc="ZipZapOuch · Nov 10, 2024 at 6:51 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Get a scalpel and remove 1/4" of insulation, look up the insulation. Wrap a turn of wire to tap into that bare section of copper. Put a piece of craft paper behind the tap so it doesn't short to the core (and possibly some black electrical tape. Not difficult.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">"The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.”<br /> ― George Orwell, 1984 (published June 8, 1949)</div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="Lightium" data-content="post-1457338" id="js-post-1457338" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457338/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457338"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/lightium.206952/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/lightium.206952/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/lightium.206952/" class="avatar avatar--m" data-user-id="206952" data-xf-init="member-tooltip"> <img src="/data/avatars/m/206/206952.jpg?1696537212" srcset="/data/avatars/l/206/206952.jpg?1696537212 2x" alt="Lightium" class="avatar-u206952-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/lightium.206952/" class="username " dir="auto" data-user-id="206952" data-xf-init="member-tooltip"><span itemprop="name">Lightium</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Active Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457338" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-11T13:22:31-0800" data-time="1731360151" data-date-string="Nov 11, 2024" data-time-string="1:22 PM" title="Nov 11, 2024 at 1:22 PM" itemprop="datePublished">Nov 11, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457338" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457338/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457338" rel="nofollow"> #4 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457338" data-lb-caption-desc="Lightium · Nov 11, 2024 at 1:22 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">What voltages are you dealing with? Electrical tape is only good for 600 volts.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="ZipZapOuch" data-content="post-1457339" id="js-post-1457339" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457339/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457339"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/zipzapouch.322126/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/zipzapouch.322126/" /> <div class="message-avatar message-avatar--online"> <div class="message-avatar-wrapper"> <a href="/members/zipzapouch.322126/" class="avatar avatar--m" data-user-id="322126" data-xf-init="member-tooltip"> <img src="/data/avatars/m/322/322126.jpg?1721790915" srcset="/data/avatars/l/322/322126.jpg?1721790915 2x" alt="ZipZapOuch" class="avatar-u322126-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> <span class="message-avatar-online" tabindex="0" data-xf-init="tooltip" data-trigger="auto" title="Online now"></span> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/zipzapouch.322126/" class="username " dir="auto" data-user-id="322126" data-xf-init="member-tooltip"><span itemprop="name">ZipZapOuch</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Active Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457339" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-11T13:44:02-0800" data-time="1731361442" data-date-string="Nov 11, 2024" data-time-string="1:44 PM" title="Nov 11, 2024 at 1:44 PM" itemprop="datePublished">Nov 11, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457339" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457339/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457339" rel="nofollow"> #5 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457339" data-lb-caption-desc="ZipZapOuch · Nov 11, 2024 at 1:44 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 206952" data-quote="Lightium" data-source="post: 1457338" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457338" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457338">Lightium said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> What voltages are you dealing with? Electrical tape is only good for 600 volts. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Listed in the first post.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">"The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.”<br /> ― George Orwell, 1984 (published June 8, 1949)</div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="ChrisP58" data-content="post-1457346" id="js-post-1457346" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457346/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457346"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/chrisp58.202128/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/chrisp58.202128/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/chrisp58.202128/" class="avatar avatar--m" data-user-id="202128" data-xf-init="member-tooltip"> <img src="/data/avatars/m/202/202128.jpg?1378860056" srcset="/data/avatars/l/202/202128.jpg?1378860056 2x" alt="ChrisP58" class="avatar-u202128-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/chrisp58.202128/" class="username " dir="auto" data-user-id="202128" data-xf-init="member-tooltip"><span itemprop="name">ChrisP58</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> <div class="userBanner userBanner userBanner--gray message-userBanner" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Most Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457346" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-11T15:03:18-0800" data-time="1731366198" data-date-string="Nov 11, 2024" data-time-string="3:03 PM" title="Nov 11, 2024 at 3:03 PM" itemprop="datePublished">Nov 11, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457346" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457346/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457346" rel="nofollow"> #6 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457346" data-lb-caption-desc="ChrisP58 · Nov 11, 2024 at 3:03 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 322126" data-quote="ZipZapOuch" data-source="post: 1457339" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457339" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457339">ZipZapOuch said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Listed in the first post. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Not that I could see. The OP only says he wants multiple taps at 10, 13, 16 and 19 turns. Without knowing the turns per volt, we really don't <u>know</u> what the voltages will be.<br /> <br /> That said, the secondary voltage will be likely be low due to the relatively higher number of primary turns.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-11-11T15:35:05-0800" data-time="1731368105" data-date-string="Nov 11, 2024" data-time-string="3:35 PM" title="Nov 11, 2024 at 3:35 PM" itemprop="dateModified">Nov 11, 2024</time> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457351" id="js-post-1457351" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457351/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457351"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/gary350.35041/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/gary350.35041/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip"><span itemprop="name">gary350</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457351" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-11T16:34:56-0800" data-time="1731371696" data-date-string="Nov 11, 2024" data-time-string="4:34 PM" title="Nov 11, 2024 at 4:34 PM" itemprop="datePublished">Nov 11, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457351" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457351/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457351" rel="nofollow"> #7 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457351" data-lb-caption-desc="gary350 · Nov 11, 2024 at 4:34 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I have lost my MATH information to determine, capacitors, inductor, resistor, values for a power supply? I make notes then can't find them?<br /> <br /> <div class="bbImageWrapper js-lbImage" title="101_0074.jpg" data-src="https://www.electro-tech-online.com/attachments/101_0074-jpg.147712/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/101_0074-jpg.147712/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="101_0074.jpg" title="101_0074.jpg" width="1280" height="960" loading="lazy" /> </div></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457508" id="js-post-1457508" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457508/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457508"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/gary350.35041/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/gary350.35041/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip"><span itemprop="name">gary350</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457508" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-17T11:50:31-0800" data-time="1731873031" data-date-string="Nov 17, 2024" data-time-string="11:50 AM" title="Nov 17, 2024 at 11:50 AM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457508" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457508/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457508" rel="nofollow"> #8 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457508" data-lb-caption-desc="gary350 · Nov 17, 2024 at 11:50 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">PS is finished and works good. I decided to use a 6KW auto transformer = variac on 120 vac to get 15 vdc on the secondary at first then I can dial in any voltage up to 35 vdc. 100a rectifier has heat sinks. C1 & C2 are both 2500uf 200v. Choke is .53mh. Bleeder resistor 4.7k. Output 35vdc 30a. Scope shows ripple in the DC = .000 volts.<br /> <br /> <div class="bbImageWrapper js-lbImage" title="101_0096.jpg" data-src="https://www.electro-tech-online.com/attachments/101_0096-jpg.147747/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/101_0096-jpg.147747/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="101_0096.jpg" title="101_0096.jpg" width="1280" height="960" loading="lazy" /> </div><div class="bbImageWrapper js-lbImage" title="101_0097.jpg" data-src="https://www.electro-tech-online.com/attachments/101_0097-jpg.147748/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.electro-tech-online.com/attachments/101_0097-jpg.147748/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="101_0097.jpg" title="101_0097.jpg" width="1280" height="960" loading="lazy" /> </div><div class="bbImageWrapper js-lbImage" 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itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457509" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457509/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457509" rel="nofollow"> #9 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457509" data-lb-caption-desc="Nigel Goodwin · Nov 17, 2024 at 12:01 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 35041" data-quote="gary350" data-source="post: 1457508" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457508" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457508">gary350 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> PS is finished and works good. I decided to use a 6KW auto transformer = variac on 120 vac to get 15 vdc on the secondary at first then I can dial in any voltage up to 35 vdc. 100a rectifier has heat sinks. C1 & C2 are both 2500uf 200v. Choke is .53mh. Bleeder resistor 4.7k. Output 35vdc 30a. <b> Scope shows ripple in the DC = .000 volts.</b> </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> What scope?, and was that under load? - I don't see as sticking a multimeter on it is achieving much?. But with zero load, you should get zero ripple - you have far too little capacitance to give low ripple at high currents.<br /> <br /> And what's with the choke?, a tiny choke like that isn't doing much at 50/60Hz (100/120Hz).</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">PIC programmer software, and PIC Tutorials at:<br /> <a href="http://www.winpicprog.co.uk" target="_blank" class="link link--external" rel="noopener">http://www.winpicprog.co.uk</a></div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="1" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList is-active"> <ul class="reactionSummary"> <li><span class="reaction reaction--small reaction--1" data-reaction-id="1"><i aria-hidden="true"></i><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="reaction-sprite js-reaction" alt="Like" title="Like" /></span></li> </ul> <span class="u-srOnly">Reactions:</span> <a class="reactionsBar-link" href="/posts/1457509/reactions" data-xf-click="overlay" data-cache="false" rel="nofollow"><bdi>sagor1</bdi></a> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457510" id="js-post-1457510" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457510/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457510"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/gary350.35041/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/gary350.35041/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip"><span itemprop="name">gary350</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457510" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-17T12:05:08-0800" data-time="1731873908" data-date-string="Nov 17, 2024" data-time-string="12:05 PM" title="Nov 17, 2024 at 12:05 PM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457510" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457510/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457510" rel="nofollow"> #10 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457510" data-lb-caption-desc="gary350 · Nov 17, 2024 at 12:05 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 10131" data-quote="Nigel Goodwin" data-source="post: 1457509" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457509" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457509">Nigel Goodwin said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> What scope?, and was that under load? - I don't see as sticking a multimeter on it is achieving much?. But with zero load, you should get zero ripple - you have far too little capacitance to give low ripple at high currents.<br /> <br /> And what's with the choke?, a tiny choke like that isn't doing much at 50/60Hz (100/120Hz). </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>No load yet. What changes does it need?</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="Nigel Goodwin" data-content="post-1457511" id="js-post-1457511" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457511/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457511"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/nigel-goodwin.10131/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/nigel-goodwin.10131/" /> <div class="message-avatar message-avatar--online"> <div class="message-avatar-wrapper"> <a href="/members/nigel-goodwin.10131/" class="avatar avatar--m" data-user-id="10131" data-xf-init="member-tooltip"> <img src="/data/avatars/m/10/10131.jpg?1378874952" alt="Nigel Goodwin" class="avatar-u10131-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> <span class="message-avatar-online" tabindex="0" data-xf-init="tooltip" data-trigger="auto" title="Online now"></span> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/nigel-goodwin.10131/" class="username " dir="auto" data-user-id="10131" data-xf-init="member-tooltip"><span class="username--style5 username--moderator username--admin" itemprop="name">Nigel Goodwin</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner userBanner--gray message-userBanner" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Most Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457511" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-17T12:11:15-0800" data-time="1731874275" data-date-string="Nov 17, 2024" data-time-string="12:11 PM" title="Nov 17, 2024 at 12:11 PM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457511" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457511/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457511" rel="nofollow"> #11 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457511" data-lb-caption-desc="Nigel Goodwin · Nov 17, 2024 at 12:11 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 35041" data-quote="gary350" data-source="post: 1457510" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457510" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457510">gary350 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> No load yet. What changes does it need? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> No load, no ripple - I'd say you need a <b>LOT</b> more capacitance, dump the choke as it's doing nothing. You're going to get ripple, it's just a question of how much is acceptable.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">PIC programmer software, and PIC Tutorials at:<br /> <a href="http://www.winpicprog.co.uk" target="_blank" class="link link--external" rel="noopener">http://www.winpicprog.co.uk</a></div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457513" id="js-post-1457513" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457513/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457513"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/gary350.35041/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/gary350.35041/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip"><span itemprop="name">gary350</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457513" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-17T12:46:33-0800" data-time="1731876393" data-date-string="Nov 17, 2024" data-time-string="12:46 PM" title="Nov 17, 2024 at 12:46 PM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457513" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457513/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457513" rel="nofollow"> #12 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457513" data-lb-caption-desc="gary350 · Nov 17, 2024 at 12:46 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 10131" data-quote="Nigel Goodwin" data-source="post: 1457511" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457511" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457511">Nigel Goodwin said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> No load, no ripple - I'd say you need a <b>LOT</b> more capacitance, dump the choke as it's doing nothing. You're going to get ripple, it's just a question of how much is acceptable. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>I have 2 of these 7400 mfd caps</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> <section class="message-attachments"> <h4 class="block-textHeader">Attachments</h4> <ul class="attachmentList"> <li class="file file--linked"> <a class="u-anchorTarget" id="attachment-147751"></a> <a class="file-preview js-lbImage" data-lb-sidebar-href="" data-lb-caption-extra-html="" href="/attachments/101_0105-jpg.147751/" target="_blank"> <img src="/data/attachments/136/136736-aed94b7fcd4c08812c63d0610989c69a.jpg" alt="101_0105.jpg" width="134" height="100" loading="lazy" /> </a> <div class="file-content"> <div class="file-info"> <span class="file-name" title="101_0105.jpg">101_0105.jpg</span> <div class="file-meta"> 580.3 KB · Views: 20 </div> </div> </div> </li> </ul> 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2024" data-time-string="12:48 PM" title="Nov 17, 2024 at 12:48 PM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457514" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457514/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457514" rel="nofollow"> #13 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457514" data-lb-caption-desc="Nigel Goodwin · Nov 17, 2024 at 12:48 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">What are you trying to do, and how much ripple is acceptable?.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">PIC programmer software, and PIC Tutorials at:<br /> <a href="http://www.winpicprog.co.uk" target="_blank" class="link link--external" rel="noopener">http://www.winpicprog.co.uk</a></div> </aside> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="gary350" data-content="post-1457516" id="js-post-1457516" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457516/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span class="u-anchorTarget" id="post-1457516"></span> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.electro-tech-online.com/members/gary350.35041/"> <meta itemprop="url" content="https://www.electro-tech-online.com/members/gary350.35041/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/gary350.35041/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="35041" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u35041-m" role="img" aria-label="gary350">G</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/gary350.35041/" class="username " dir="auto" data-user-id="35041" data-xf-init="member-tooltip"><span itemprop="name">gary350</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Well-Known Member</h5> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457516" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-17T15:28:24-0800" data-time="1731886104" data-date-string="Nov 17, 2024" data-time-string="3:28 PM" title="Nov 17, 2024 at 3:28 PM" itemprop="datePublished">Nov 17, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457516" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457516/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457516" rel="nofollow"> #14 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457516" data-lb-caption-desc="gary350 · Nov 17, 2024 at 3:28 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Power supply capacitor discharge time should be slower than the next AC ripple.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="Nigel Goodwin" data-content="post-1457520" id="js-post-1457520" itemscope itemtype="https://schema.org/Comment" itemid="https://www.electro-tech-online.com/posts/1457520/"> <meta itemprop="parentItem" itemscope itemid="https://www.electro-tech-online.com/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/" /> <span 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class="username " dir="auto" data-user-id="10131" data-xf-init="member-tooltip"><span class="username--style5 username--moderator username--admin" itemprop="name">Nigel Goodwin</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner userBanner--gray message-userBanner" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Most Helpful Member</strong><span class="userBanner-after"></span></div> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457520" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-18T00:10:02-0800" data-time="1731917402" data-date-string="Nov 18, 2024" data-time-string="12:10 AM" title="Nov 18, 2024 at 12:10 AM" itemprop="datePublished">Nov 18, 2024</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457520" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1457520/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/best-way-to-put-voltage-taps-on-30a-wire-on-transformer-secondary-winding.166888/post-1457520" rel="nofollow"> #15 </a> </li> </ul> </header> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1457520" data-lb-caption-desc="Nigel Goodwin · Nov 18, 2024 at 12:10 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 35041" data-quote="gary350" data-source="post: 1457516" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1457516" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1457516">gary350 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Power supply capacitor discharge time should be slower than the next AC ripple. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>That makes no sense at all?, how much ripple is acceptable?.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <aside class="message-signature"> <div class="bbWrapper">PIC programmer software, and PIC Tutorials 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What is the best way to make taps on #10 stranded wire?" }, "publisher": { "@type": "Organization", "name": "Electronics Forum (Circuits, Projects and Microcontrollers)", "description": "An electronics forum to talk all about circuits and projects.", "url": "https://www.electro-tech-online.com" } } </script>  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MMC9PJ9" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>   <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-KLX5R59" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <script> $(function(){ var notice = $('.xb-welcome-notice'); if(notice.length){ var cookie = XF.Cookie.get('hide_welcome_notice'); if(!cookie){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else if ((Date.now() - cookie) > 8.64e+7){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else { notice.hide(); } } }); </script> </div> </body> </html>

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Best way to put voltage taps on 30a wire on transformer secondary winding? | Electronics Forum (Circuits, Projects and Microcontrollers)