grounding of generators in parallel
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Re: grounding of generators in parallel
How are the generators configured? SDS or not? And what do you mean by grounded?
It all depends on if you are switching the neutral. If the neutral is switched you have a SDS configuration (250.30). This would require each ungrounded conductor to be bonded to a common ground electrode system at the site..
If the neutral is not switched, you are not required to bond the frame to an electrode, but you would still be required to have EGC's to each gen set
How are the generators configured? SDS or not? And what do you mean by grounded?
It all depends on if you are switching the neutral. If the neutral is switched you have a SDS configuration (250.30). This would require each ungrounded conductor to be bonded to a common ground electrode system at the site..
If the neutral is not switched, you are not required to bond the frame to an electrode, but you would still be required to have EGC's to each gen set
Re: grounding of generators in parallel
Kolla, and EGC is an Equipment Grounding Conductor ran with phase and neutral conductors. You still have not indicated if the neutral is switched or not.
Due to your admission of "lack of knowledge", you really need to find some one with experience for your safety and others. Please do not take this wrong, but a mistake here could cost someone's life and/or property, leaving you liable for damages.
[ June 16, 2004, 05:26 PM: Message edited by: dereckbc ]
Kolla, and EGC is an Equipment Grounding Conductor ran with phase and neutral conductors. You still have not indicated if the neutral is switched or not.
Due to your admission of "lack of knowledge", you really need to find some one with experience for your safety and others. Please do not take this wrong, but a mistake here could cost someone's life and/or property, leaving you liable for damages.
[ June 16, 2004, 05:26 PM: Message edited by: dereckbc ]
Re: grounding of generators in parallel
OK, you will find lots of help here. I will try to point you in the right direction, but I feel you should do the ground work.
For starters you need to know what a SDS (seperately derived system) is. Look in NEC article 100 for the difinitions. Some other difinitions you will need to know are Ground Electrode (GE), Ground Electrode System (GES) Ground Elctrode Conductor (GEC), Bonding Jumpers, Main Bonding Jumper (MBJ), Equipment Grounding Conductor, Grounded Conductor (aka neutral), Ungrounded Conductor (aka hot or phase).
Then find NEC article 250 and read it. You will find info on SDS in 250.30.
That should get you started, then post back here for clarifications and more questions. Good luck and welcome to the Forum
OK, you will find lots of help here. I will try to point you in the right direction, but I feel you should do the ground work.
For starters you need to know what a SDS (seperately derived system) is. Look in NEC article 100 for the difinitions. Some other difinitions you will need to know are Ground Electrode (GE), Ground Electrode System (GES) Ground Elctrode Conductor (GEC), Bonding Jumpers, Main Bonding Jumper (MBJ), Equipment Grounding Conductor, Grounded Conductor (aka neutral), Ungrounded Conductor (aka hot or phase).
Then find NEC article 250 and read it. You will find info on SDS in 250.30.
That should get you started, then post back here for clarifications and more questions. Good luck and welcome to the Forum
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