mithawater
New member
I WAS ASKED STANDARDS OF SWITCHGEAR TROUBLE SHOOTING.
CAN SOMEBODY HELP ME OUT.
THANKS
CAN SOMEBODY HELP ME OUT.
THANKS
SWITCHGEAR TROUBLE SHOOTING
- Thread starter mithawater
- Start date
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mdshunk
Senior Member
- Location
- Right here.
Re: SWITCHGEAR TROUBLE SHOOTING
I've never had to troubleshoot switchgear. It either works or else you have a black crater in the floor where the switch gear used to be.
A little more detail might be helpful.
I've never had to troubleshoot switchgear. It either works or else you have a black crater in the floor where the switch gear used to be.
A little more detail might be helpful.
stevearne
Senior Member
- Location
- Rapid City, SD
Re: SWITCHGEAR TROUBLE SHOOTING
This is not an Electrical Instructor topic, so I am moving it to a different thread where you may find a response. Thanks
This is not an Electrical Instructor topic, so I am moving it to a different thread where you may find a response.
Thanks
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: SWITCHGEAR TROUBLE SHOOTING
Well, if you plug a plug tester into receptacles and everything reads okay until someone plugs in a stereo and then you get "Hot/Gnd Reverse" or "Open Neutral" on the plug tester, you might have a loose neutral in your switchgear. Siemens gear sometimes has a "donut" that is easy to forget to tighten, after the sixth time of putting the meter stack on and off the disconnect.
If on the day that the utility comes to hook it up, there is a large puff of smoke and swearing from the gents at the transformer, then you accidentally crossed phases in the disconnect, probably by misidentifying parallel runs.
If it hangs off the wall, the drywall anchors need to be replaced with lags.
Too tight won't hold.
And that's the sum of what I have learned through my own and other's mistakes with switchgear.
Well, if you plug a plug tester into receptacles and everything reads okay until someone plugs in a stereo and then you get "Hot/Gnd Reverse" or "Open Neutral" on the plug tester, you might have a loose neutral in your switchgear. Siemens gear sometimes has a "donut" that is easy to forget to tighten, after the sixth time of putting the meter stack on and off the disconnect.
If on the day that the utility comes to hook it up, there is a large puff of smoke and swearing from the gents at the transformer, then you accidentally crossed phases in the disconnect, probably by misidentifying parallel runs.
If it hangs off the wall, the drywall anchors need to be replaced with lags.
Too tight won't hold.
And that's the sum of what I have learned through my own and other's mistakes with switchgear.
zog
Senior Member
- Location
- Charlotte, NC
Re: SWITCHGEAR TROUBLE SHOOTING
NETA writes standards for testing switchgear. You can get a copy at www.netaworld.org
NETA writes standards for testing switchgear. You can get a copy at www.netaworld.org
- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Re: SWITCHGEAR TROUBLE SHOOTING
By the way, please turn off the ALL CAPS feature. It makes the post more difficult to read. It is also considered impolite, as though you were SHOUTING at us.
By the way, please turn off the ALL CAPS feature. It makes the post more difficult to read. It is also considered impolite, as though you were SHOUTING at us.
O
oliver100
Guest
Re: SWITCHGEAR TROUBLE SHOOTING
If you are talking about the big drawout 3000-4000 Amps switchgears, I am not aware of any standards. It is common practice each manufacturer to suply a manual. In addition, they gladly troubleshoot them for about $700-800 per diem.
If you are talking about the big drawout 3000-4000 Amps switchgears, I am not aware of any standards. It is common practice each manufacturer to suply a manual. In addition, they gladly troubleshoot them for about $700-800 per diem.
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