Answer Posted / sunil
Peterson coils are used to in ungrounded 3-phase grounding systems to limit the arcing currents during ground faults. The coil was first developed by W. Petersen in 1916.
Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
What is the most important precaution in any experiment with d.c. Shunt motor?
How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
i applied for the ap transco please forward the freqventley asked QA
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
What is the drawback of class b amplifier? How is this minimized?
i am going to attaned the engineer (disign)iterview at HAL please give me duid line
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
Ratings of power transformer,Distribution transformer.
Explain about 3 phase motor fault current calculation with examples?
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
how to differentiate a mpcb,mcb with a contactor? Explain their working operation
in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know
1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?
sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah