Alternate Supply

[Darrenm]

Looking at a job with a dno feed as well as an aux Tx supply onsite, both go into auto changeover panel and then off to the db. When filling out an EIC I would fill out the alternate supply details etc, but would I just note down the worst of the two ze's and then do my zs's of that or should I do separate result sheets for both?

any views much appreciated.

D

 

[davesparks]

I'd say you should be recording the test results for both supplies.

 

[Pete999]

The alternate supply, how is the transformer fed? via a gen set for example?

 

[Darrenm]

Transformer is fed via an 11kV HSS Eclipse CB.

 

[Pete999]

Cant understand why you have a normal supply and an alternative supply fed fro the grid, are you sure you are correct in your appreciation of the nature of the arrangements??

 

[Darrenm]

Hi Pete, confident of the setup on site. Hv primary sub, the dual supply is for the battery chargers that in turn power the HV protection relays. Instead of the second supply being from the DNO it could easily be a standby genny.

 

[Pete999]

Hi Pete, confident of the setup on site. Hv primary sub, the dual supply is for the battery chargers that in turn power the HV protection relays. Instead of the second supply being from the DNO it could easily be a standby genny.

Can you supply a diagram of the set up?