Interested to Buy Any Domain ? << Click Here >> for more details...
What are the possible causes of REF operation on a power
transformer
- 4 Answers
- 7461 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
Please note that REFR will not act under earth faults in
phases beyond the CTs. As its coverage is limited
(restricted) to Tr only ,it is called ristricted earth
fault relay.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
for 750 kw LT load what will be the ht kva
If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.
what is class of SPD and dittels of all class ?
What determines the thickness of the lamination or stamping?
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
How does a battary stores charge in it? please explain in simple manner and in detail.thanks
Refernce currents are to be generated using refernce cueernts how can this be done??
Why squirrel cage motor can only use with low starting loads ?
The synchronous machine excitation system explain
Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
What is domestic transformer? Draw the connection of domestic transformer.
Why collecting electrode of ESP to be earthed
WHY L-G FAULT IS MORE SEVERE IN TERMS OF RRRV?
Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
