hhsting
Senior Member
- Location
- Glen bunie, md, us
- Occupation
- Junior plan reviewer
I guess this can be in grounding and bonding forum but since I have solar panels I placed here. We are still in NEC 2014 so please only references from NEC 2014.
I have solar farm in which CPS SCH125KTL-DO/US-600 inverters are being used. The outputs of inverters is 600VAC goes to 600V, 3000A, switchboard which is service rated, has 3000A main breaker and is grounded. The switchboard feeds 600V wye to 13.2kV wye 2000kVA bio oil filled transformer. The output of transformer 13.2kV side feeds utility switchboard.
My questions are following:
1. Does NEC 2014 talk about medium voltage transformer 600VAC wye to 13.2kV wye grounding and bonding and if so then which section and article?
2. Does both the 600 VAC wye and 13.2kV wye have to be grounded?
3. Does system bonding jumper be at which side 600VAC or 13.2kV side for solar panels?
4. The 3000A, 600VAC switchboard should it be service rated with grounding?
I have solar farm in which CPS SCH125KTL-DO/US-600 inverters are being used. The outputs of inverters is 600VAC goes to 600V, 3000A, switchboard which is service rated, has 3000A main breaker and is grounded. The switchboard feeds 600V wye to 13.2kV wye 2000kVA bio oil filled transformer. The output of transformer 13.2kV side feeds utility switchboard.
My questions are following:
1. Does NEC 2014 talk about medium voltage transformer 600VAC wye to 13.2kV wye grounding and bonding and if so then which section and article?
2. Does both the 600 VAC wye and 13.2kV wye have to be grounded?
3. Does system bonding jumper be at which side 600VAC or 13.2kV side for solar panels?
4. The 3000A, 600VAC switchboard should it be service rated with grounding?