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If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?
2311Post New Electrical Engineering Questions
How to operate a ac chilar plant?
A d.c. Shunt motor is found suitable to drive fans because they require?
please describe the Transformer setting, Motor setting, I/C setting, Tie setting
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??
Difference between field rheostat and armature rheostat.
what is sevice settings for mccb?How can be it setted?
how does it help for selection of a transformer.
WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?
How to calulate Locked rotor amper(LRA) for compressor type motors?
any application of back emf
how to compute kvar in substation feeder to improve power factor and sending voltage
What is the formula for calculating no-load current?
How work of capacitor in dc supply...???
If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link
