what is the current setting for different relay protection for transformer .

2308

what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

2165

what are the steps involved in generator load test?

1553

WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB

2424

What is relation between mu(nought) and epsilon(nought)?

1532

How to check the LM324 Ic

8481

1.What will be stored in online ups EPROM IC?

2053

Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

1986

What is meant by Low Resistance Cable and High Resistance Cable.

1910

In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

807

what is the significance of cabability curve of alternator

2227

I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

2450

What is the tension required for the 25000 CFM AHU belt

2487

Can we put 3 layers of cable tray while installing tray

2398

How maesure earth neutral value & how much maximum value value required in between earth & neutral.

2074