https://gunkies.org/index.php?action=history&feed=atom&title=Three-phase_power 2026-05-18T18:39:40Z Revision history for this page on the wiki MediaWiki 1.30.1 https://gunkies.org/w/index.php?title=Three-phase_power&diff=35158&oldid=prev 2024-08-28T12:19:49Z

<p>+ breaker image</p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr style="vertical-align: top;" lang="en"> <td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 12:19, 28 August 2024</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Image:3-phase_power-breaker.png|thumb|200px|right|A 3-phase power [[circuit breaker]]]]</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Three-phase power''' is the form of [[alternating current|AC]] power often supplied in for use in powering heavy equipment (especially rotating equipment); i.e. there are a trio of supply [[conductor]]s, each of which carries power in a different [[phase]]. (The three phases differ by 120 degrees; degrees being a measure used for sinusoidal waveforms, with 360 degrees being one complete cycle.)</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Three-phase power''' is the form of [[alternating current|AC]] power often supplied in for use in powering heavy equipment (especially rotating equipment); i.e. there are a trio of supply [[conductor]]s, each of which carries power in a different [[phase]]. (The three phases differ by 120 degrees; degrees being a measure used for sinusoidal waveforms, with 360 degrees being one complete cycle.)</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <!-- diff cache key mediawiki-wiki_:diff:version:1.11a:oldid:35112:newid:35158 --> </table>

Jnc https://gunkies.org/w/index.php?title=Three-phase_power&diff=35112&oldid=prev 2024-08-15T17:33:15Z

<p>Make into separate article</p> <p><b>New page</b></p><div>'''Three-phase power''' is the form of [[alternating current|AC]] power often supplied in for use in powering heavy equipment (especially rotating equipment); i.e. there are a trio of supply [[conductor]]s, each of which carries power in a different [[phase]]. (The three phases differ by 120 degrees; degrees being a measure used for sinusoidal waveforms, with 360 degrees being one complete cycle.)<br /> <br /> This allows the torque produced in an electric motor to be 'smoother' - in a motor powered by single-phase AC, the torque output will necessarily be sinusoidal, like the input voltage.<br /> <br /> The 3 phases have to be connected to the motor in the correct 'order', or the motor may rotate in the other (i.e. 'wrong') direction. There are stories of large (older) [[disk]]s, powered by 3-phase power, being connected the wrong way around - with the un-wanted result!<br /> <br /> {{semi-stub}}<br /> <br /> [[Category: Electrical Basics]]</div>

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