what is the response time of relays when a FAULT OCCURS IN A
POWER SYSTEM?
- 2 Answers
- 4179 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
As per discriminative time settings
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Why do we need interlocking in a HT metering or Ring main unit switchgear?
What is the need of generator relay panel
When are the directional relays used?
technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"
please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com
how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
What was the Dg set radiator and lube oil temperatures trip in ACB
What is the use of oil in transformers?
What is q factor?
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers
WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?
Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss
what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..
Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.
