Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sakthi
Internal
Winding Phase-Phase,
Phase-Ground faults
Differential (87T), over current (51, 51N)
Restricted ground fault protection
(87RGF)
Winding inter-turn
faults
Differential (87T), Buchholz relay,
Core insulation failure,
shorted laminations
Differential (87T), Buchholz relay,
sudden pressure relay
Tank faults Differential (87T), Buchholz relay and
tank-ground protection
Overfluxing Volts/Hz (24)
External
Overloads Thermal (49)
Overvoltage Overvoltage (59)
Overfluxing Volts/Hz (24)
External system short
circuits
Time overcurrent (51, 51G),
Instantaneous overcurrent (50, 50G)
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
SUTIABLE FOR ohm's law super conductor
How to assume answer to electrical questions
Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter
Define cut-off rate?
How to calculate cable size in HT AND LT
DC transmission
for opening electrical shop, tips needed.
HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m
explain different losses in a transformer.
what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
why electronic instruments is more favorable than electrical?
what is the difference b/w ground & virtual ground?
