i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

1394

What is the formula to calculate a three phase alternator

1772

what is physical distance of isolator to VCB in 33/11kv sub stations

1677

How much voltage we need to apply in 33kv cable during hipot test of cable

389

What are gain margin and phase margin?

821

I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

1478

Why generation voltage in thermal power plant is between 11kv to 33kv?

607

any one can explain the stages of a knee point which is taken during ct magnetising curve.

1303

what is lrs tank water resistance.

2059

sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

1799

why we r not earthed Control cable of C.T. terminals

1535

Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?

1161

Explain how to determine capacitor tolerance codes?

610

11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

1199

Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

1791