Answer / ramanrajivgandhi

Buchhol's relays,Earth fault relay,Explosion vent relays,Alarm circuit relays,tripping circuit relays

Answer / vikas kumar

that is 2 types of power transfomer protection 1. main protection
2. back up protection
main protection eg: diffrenceal relay protection.
back up protection eg: IDMT over current
& earth fult, dc logic protectio (buchholz, PRV, MOAG,SPR) etc.

Answer / karthi

Differential protection
REF protection
Stand-by Earthfault protection
Backup Overcurrent protection
overflux protection

Answer / magan

above what amp current rating do bus ducts use in LT. ??

can we transmit power with out cable if it is possible how it is possible.

2 Answers  

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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?

0 Answers   Power Plant,

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why we do occ & scc test in transformer ?how we can do it ?

2 Answers  

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what is the working principle of dc motor & its application ?

3 Answers  

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three phase 180kva diesel generator can take how much load in amp and what is formula to get this?

13 Answers   lenovo,

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Why the suply frequency in INDIA is 50HZ

5 Answers   HCL,

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What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

0 Answers  

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What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

0 Answers   Welspun,

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when the control mechanism is present for an ammeter(1-10A) and 1A current is apllied what will be the reading of the meter?

2 Answers   GATE,

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Why do we give DC excitation to AC Synchronous motor??

9 Answers   Lance, MBM, Polycab,

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working principal of online ups

0 Answers   Delta Power Systems,

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What is complex power?

1 Answers   DRDO,

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