What type of protective system we uses in L.V. distribution
panels?
Answer Posted / satya dev
1-Over current & earth fault relay for feedar Protection.
2-reverse power relay for Alternators ( if diffrent
sourcees are used- eg. transformer supply & DG supply)
3-Inverse/differetial relay for Busbar protection.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Why can't we parallel the secondary circuits of two voltage transformers?
As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?
List few applications of d.c series motor?
What is the formula to calculate the rating of power cable for three phase current.
Explain the advantages and disadvantages of hydropower plant?
How do we calculate transformer oil in liter from the rating of the transformer.
I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.
Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m
main difference between ac and dc?
how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.
What are the advantages of speed control using thyristor?
all the technical question with answers pleas send your email id ramar_eee@yahoo.com
what is two point starter?
CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D