GFCI again

Salmon Egg · 2010-07-06T06:23:03+00:00

I do some hydroponic growing for a hobby. I use some small submersible pumps and air pumps. Because the nutrient solution is essentially a salt solution, I use GFCI for personal protection against shock.A timer is used to turn the pumps on and off. I have been getting occasional trips upon turning the pumps off. This makes me think that the problem comes from inductive kicks when the switch is opened. I have put about 0.2 microfarads between the hot and neutral lines. That seems to solve the problem for now.I am not sure just how the problem arises. My guess is that the inductive kick must be breaking down insulation so that I get some ground current during the inductive spike. That cannot be good for the long term integrity of the insulation.To get a better handle on the problem, I was thinking of removing the ground connection to the pumps to see if I still get trips upon opening of the switch. Without a ground connection, it would be impossible to get ground fault current unless there is an external ground connection, such as me being grounded and sticking my hand into the reservoir. The GFCI would still protect me in such a situation.So my question is: What other mechanism can be at work to cause trips other than breakdown to ground?bill

M

Michael Moroney 16 years ago

Funny to watch both Roy/Proteus and The Poster of 1000 Nyms whine over being outed. At least Dimbulb/"The Poster of 1000 Nyms" has some amusing nyms, while Roy/Proteus is just retarded.

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ItchyGato 16 years ago

Outed?

I have never hidden a goddamned thing in my entire life, dumbfuck.

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Greegor 16 years ago

166.137.137.235 WIRELESS DATA SERVICE PROVIDER CORPORATION ASHBURN VIRGINIA

Is that the usual IP address or is that moron burning a proxy?

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Greegor 16 years ago

Archie, WHY did you send me a bitchy e-mail? Did you try to post but screw up, or did you do that on purpose?

Are you enjoying your buddy PROTEUS?

Could you post your own, more authoritative version of this list Michael made, Archie?

THE DIMBULB SCORECARD

Abbey Somebody AM AnimalMagic Archimedes' Lever AtTheEndofMyRope AwlSome Auger BarnCat

Bart! BigBalls BillyPilgrim

10 BlindBaby Bungalow Bill Capt. Cave Man CellShocked ChairmanOfTheBored Chieftain of the Carpet Crawlers

Copacetic Corbomite Carrie DarkMatter DarkSucker

20 Do I really need to say? Dorothy with the Red Shoes on Dr. Heywood R. Floyd DrParnassus FatBytestard FigureItOut FunkyPunk FieldEffectTrollsistor FunkyPunk FieldEffectTrollsistor George Orr GoldIntermetallicEmbrittlement

30 Hattori Hanzo Herbert John \Jackie\" Gleason" HiggsField IAmTheSlime

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40 lurch MadManMoon MakeNoAttemptToAdjustYourSet

snipped-for-privacy@thebarattheendoftheuniverse.org

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50 Mycelium Neanderthal Nunya OutsideObserver Perenis ? snipped-for-privacy@hereforlongtime.org? Pieyed Piper Phat Bytestard RoyLFuchs scorpius

SkyPilot

60 SomeKindOfWonderful

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Sum Ting Wong

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TheJoker

70 The Keeper of the Key to The Locks

The Last Mimsy The Loner The_Giant_Rat_of_Sumatra TheGlimmerMan TheKraken TheQuickBrownFox TralfamadoranJetPilot

snipped-for-privacy@thebarattheendoftheuniverse.org

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87

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GFCI again

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