<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div><span>Alan,</span></div><div dir="ltr"><span>It worked before? the only difference is the sub is not the ground anymore. The radio breaker trips when I turn the radio on, when I disconnect the compressor ground, the radio is fine. </span></div><div dir="ltr"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Wednesday, June 8, 2016 5:01 PM, Alan James via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv2650585568"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2614"><span>Hank,</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2613"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2612">is the compressor on when it is doing this?</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2599"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2600">If not, & you are just attaching the terminals to the battery, possibly it has </span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2651"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2650">to do with the input capacitors on the compressor motor controller drawing</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2687"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2705">large amounts of current.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2681"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2680">On my Kelly controller it specifies the use of a pre-charge resistor to charge</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2693"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2694">up the capacitors so that there is not a large in-rush of current that causes</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2707"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2706">arcing on the switch or damages sensitive electronics.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2750"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2749">In my test system for my motor I have a circuit breaker that I close & this sends</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2733"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2732">power through the pre-charge resistor, which is wired across the switch terminals.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2748"><span>Then I turn the main switch on.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2790"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2789">You could try attaching a resistor across the compressor to battery connection</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2791"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2792">(on the positive terminal) before attaching the compressor wire. If this worked</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2845"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2846">it would indicate the problem. I use a 1k ohm 10W resistor.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2837"><span id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2836">I am not the smartest with electronics but this may be helpful if no one</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2838"><span>else answers.</span></div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2839"><span>Cheers Alan</span></div><div class="yiv2650585568qtdSeparateBR" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2597"><br clear="none"><br clear="none"></div><div class="yiv2650585568yahoo_quoted" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2618" style="display:block;"> <div id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2617" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2616" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv2650585568yqt8565883439" id="yiv2650585568yqt27953"><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2615"> <font id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2620" face="Arial" size="2"> </font><hr id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2619" size="1"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Thursday, June 9, 2016 10:12 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> [PSUBS-MAILIST] wiring problem<br clear="none"> </div> <div class="yiv2650585568y_msg_container" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2672"><br clear="none"><div id="yiv2650585568"><div id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2674"><div id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2673" style="color:rgb(0, 0, 0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255, 255, 255);"><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465423436941_4229">Today I was doing some final wiring and discovered if my hp compressor has the ground wire on it, my acoustic radio trips the breaker. What the bleep is going on? Nothing is grounded to the hull anymore. I am taking 24V off a 36V bank for the compressor and the Radio is also taking 24V from the same source. </div><div dir="ltr" id="yiv2650585568yui_3_16_0_ym19_1_1465423436941_4229">Hank</div></div></div></div><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" id="yiv2650585568yui_3_16_0_ym19_1_1465425478816_2671" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><br><div class="yqt8565883439" id="yqt95962">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>