Why Diffrential and Ref relays are used together although Diffrential relay can protect Pri and Sec of Transformer
1 3568Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?
1 7483Which type of moter is used in trains, what is the ratting of supply used explain Working principal?
2 6614Post New Electrical Engineering Questions
Why are iron cores in transformers made laminated?
why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?
What determines the thickness of the lamination or stamping?
What happens if we give the supply to the rotor of induction motor and make its terminal shorted?
working principles of cf lamp,incandescentlamp and f lamp?
what is meant by impulse voltage?
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State ohm’s law?
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?
PAC and simple Ac different
While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens
What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?
i have 3500 amp load and select current transformer and perches.how i calculate .please understand
how many types control panel of a 132/33 kv substation
