Answer Posted / magesh
We use circuit breaker for short circuit and overload
protection
For OL -2.5 times of the rated I
For Short circuit-12times of I
According to this calculations breakers are selected
| Is This Answer Correct ? | 7 Yes | 3 No |
Post New Answer View All Answers
WHAT IS IM (INDEX OF MOUNTING )IN MOTORS
how to get bearing & winding temperature of an induction motor?
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors
What does the a,b,c of 95a,95b,95c relays denotes?
Basic motor transformer generator
DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?
Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?
Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB
brief notes on ammeters
What is the permissible maximum flux density in transformer core?
how to carried out tan delta test in 11 KV alternator ?
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
what is the AC Plant and how can do the work with parts and picture tell us 150 Tr
orifice sizing how done, checking & selection
Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.