Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Neutral Bar Clearance, 13.8kV Generator

Status
Not open for further replies.

doehl1

Electrical
Joined
Jul 2, 2007
Messages
41
Location
US
Anyone know what the clearance requirements are for a 15kV (13.8kV nom) generator neutral bar? This is the neutral bar within the generator terminal box and would typically have leads T2, T4, T6 landed on it.
Is there any code requirement or industry standard I could refer to? Live phase conductor clearances are clear and available in numerous codes, but not sure about the neutral side.
Nominal current of generator would be ~300A at 13.8kV.

 
Correction, T4, T5 & T6 for neutral connection leads from generator stator.

 
How is the generator grounded? That might set how you define the clearances.

For a high impedance ground, you might want the same as phase clearance.
 
Yes, neutral bar clearance shall be same as that for phase busbar as this size machine is likely to have high resistance grounding.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top