DPC,
Thanks for the reply:
The voltage magnitude comes from the same relay and not from other measurement devices
Pretty old installation and the chances of blown fuse is absent
Alsthom
Micom P923 RELAY in our generator relay panel has tripped on undervoltage as seen from fault records.The relay was set to operate at 80 % voltage with a definite time lag of two seconds.Though it is showing that the relay has tripped on undervoltage in fault records , but when we see...
Thanks to all. But the MVAR will be supplied by the generator and we operate at Lagging Power factor to supply MVAR to the grid.So if the GSU voltage is 66KV instead of 69KV with an OLTC what is the harm
Thanks for your replies.Actually the droop setting is 4 %.The DCS trends are not so fast to show the actual MW during the disturbance.The frequency had actually gone upto 52.5 Hz momentarily , as understood fron the nearby grid substation.(Two local grid substation was disconnected from the...
We have a 18 MW generator running in parallel with the utility grid.The max generation is around 14 MW.After 4MW of internal consumption remaining 10 MW is exported to Grid.
Today it was noticed that thre was a severe hunding in the TG load ie.. from 10 MW it went down to 2 MW and again picked...
inpran,
Sorry for the confusion
2) Both the generators have their own independent generator transformers.When both the transformers are in operation ,the two generators are connected to the grid through their respective GT.So it is similiar to two power plants supplying power to a...
We have a Captive Power plant of 18 MW Capacity.The generation is at 11KV and after catering to our plant requirements the excess power is being sent to the 66 KV grid through a YNd1 66KV/11KV,20 MVA transformer bank.When the CPP is under maintenance or not operational the grid power,stepped...