what is the difference between ac and dc hipo test of cable?

Answer Posted / velappan

normally the hypot test is carriedout by DC only
but for AC ,huge size equipment is required for testing

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

922


why a tester wont shock while testing the power in house

1331


why single phase to grd test in HV cable?why not 2 phase at a time?

1822


Why power genaration in India is at 50HZ while America its 60HZ

1881


how many stairs have you climbed while you were coming

1702






why does a dc machine has high efficiency while working as a generator than as a motor ..

1488


low frequency protection why recomend?

1825


should %impedance be high or low in a power transformer? if so why?

1487


if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

1976


explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

1757


A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

1468


There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

1820


what is the difference between 2 way and 4 pole selector switch???

1873


What is the difference between AC and DC injection methods for rotor earth fault protection

1688


Why compensation is necessary in feedback control system?

780