Why dc supply is used for closing and tripping coil of ht
breakers. What happen if we use only ups ac supply only.
Answer Posted / jpgupta
how to check capacitor
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Load break swicth maintenance procedure.
what is the difference between rectifier and converter and commudator?
Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.
main difference between ac and dc?
What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?
how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
how to test YNyn0 vector group in transformer?
how to size H.T & L.T Panel ?
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
explain which quantities change in the starting and the and the running condition in induction motor
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
what is mean by dry frequency
bsec exam syllabus (mis)
What is size 00, 01, 1 etc., in HRC fuse types?