Recent content by Samiyoussif

The PF in the name plate is not a concern, you should pay attention to the VAR you absorb not to exceed the limit of the generator that will damage the diodes or thyristors, and since it is a capacitive load you may not feel the gen is overloaded

Can I protect a delta motor 6.3 KV by differential? Do I need interposing CTs?

I believe that too, but the consultant made a comment that all the ground points should be in the protected item side (not away from it), recommended. It is an auto-transformer, does it make difference?

In the restricted earth fault protection, why should the CTs secondary common/earth be on the transformer side not the bus-bar? Does it affect the stability? Yet in the differential it doesn't affect the stability as long as the connections are identical before and after the transformer

I didn't mean to, I was searching about the CBF and the title of the thread appeared I thought it is general. Sorry!

It depends on how the grid responds to the shocks and disturbances (protection maloperation or true faults), the number of partial or full blackouts per an interval of time should be considered. The grids with more options is considered stable, or the term smart grids is used more likely

I am working on Areva P122, why there is >I setting beside the breaker position? is it for not fully opened CB? and if i must not cascade it should i send the trip directly to the breakers or depend on the other breakers protection to see the fault? bacon4life please send me the link of this paper