Dear all,
I am learning about NGR usage because I am working on installation of 20MW gas- generator power plant.
Let me explain you about my power plant.
- we have 10 unit Gas generator (11KV, 50Hz,0.8Pf)
-we will produce the power by those gen-sets and distribute to the city.
-our gen-sets will run continuously in parallel as per load demand.
As there we had use one NGR (613Ohm, 6.36Kv L-N, 20A 10 sec) and before this NGR we have NGS ( Netural Ground Switch) 10 units (400A/1P , vacuum contactor).
- Netural point of each gen-sets will connect to respetive NGS incoming and outgoing will combine and connect to the NGR.
My question is
1)all NGS should be close all the time in parallel opertion and this is only for isolaton purpose?
2) Do we need to close only one NGS when using in parallel operation?
3) could you please guide line to me for requirement operation?
This is my very first job for MV gen-sets and I had experienced only in LV generators. So, I didn't use NGR before.
Any body share me the knowledge pls,
Best Regard,
I am learning about NGR usage because I am working on installation of 20MW gas- generator power plant.
Let me explain you about my power plant.
- we have 10 unit Gas generator (11KV, 50Hz,0.8Pf)
-we will produce the power by those gen-sets and distribute to the city.
-our gen-sets will run continuously in parallel as per load demand.
As there we had use one NGR (613Ohm, 6.36Kv L-N, 20A 10 sec) and before this NGR we have NGS ( Netural Ground Switch) 10 units (400A/1P , vacuum contactor).
- Netural point of each gen-sets will connect to respetive NGS incoming and outgoing will combine and connect to the NGR.
My question is
1)all NGS should be close all the time in parallel opertion and this is only for isolaton purpose?
2) Do we need to close only one NGS when using in parallel operation?
3) could you please guide line to me for requirement operation?
This is my very first job for MV gen-sets and I had experienced only in LV generators. So, I didn't use NGR before.
Any body share me the knowledge pls,
Best Regard,