difference between ac motor and dc motor5 15214
why aggregate is placed all around substation ground.9 8327
whats is MARX CIRCUIT?1 7484
What are the earth resistance Standards of 66kv sub stations according to indian norms.2 1828
what will happen when a bulb s connected btwn two phases of a three phase delta connected source?6 4983
why ac supply neutral should earth not in dc (-)2 4098
If I want to use capacitor banks at HT (11 KV) side for maintaining power factor then which type of capacitor should I use? Plz give me the specification?? (I am using 1250 Kva transformer (11 KV/433V)).2 7444
What is the major difference between cnc and plc. why cant we use plc instead of cnc5 27476
What is difference between ball screw and lead screw.2 6877
What is the most accurate way of testing ELCB?ELCB is better than RCD?
what is MFD value in capacitor?I have 201 Kva load & reactive power is 150 Kvar. so how it is calculated?
I want the details about BHEL company examination.Can anyone able to help me please.
Pls explan the OLR setting in VCB at HT yard
how to do the ductor test?
What is the problem of internal failure in ship engine telegraph system norcontrol?
What is the difference between acs 550 & acs 850
I have 480V Single phase and I am trying to figure how big of a transformer (KVA's) and Primary breaker size I need to provide 200 Amps at 240V for a building.
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?
does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain
What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?
In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?
A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.
what is the formula for computing cable tray size & capacity
Why High voltage are generate noise ?
how to check regenerative load in drived motor