hoe to test voltage restrained overcurrent relay?

Answer Posted / shivani

can u tell me which paricular relay u are asking.
Generally all relay tested on two theory.
1.pick up value test
2.Pick up time test.

Is This Answer Correct ?    0 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is transmittance?

637


does any one know where we can purchase insulation oil for high voltage oil filled cables

1854


-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

1356


in conventional fan regulators how the current varies with speed?

1439


what are the possible reaons & remedies if resistance of NGR getting heat up

1382






How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)

2736


temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1488


What are the different types of transformers?

652


when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1518


can we use trip light with bus coupler?

1430


I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

1918


How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

1413


Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2395


I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

1516


How to address the servo drive for motor

1539