What is the acceptance value of leakage current in HI POT test
Answers were Sorted based on User's Feedback
Answer / c.hari balakrishnan
SWITCHGEAR : -
There is no specified value of leakage current,Normally it
depends on how much load is connected.Normally it is in
milliamps.For example : In 11kV SWGR we highpot with 20bays
(indoor SWGR)we can get around 20 to 30 mAmps...
Cable: -
for cables normally we can get around very low Milliamps...
| Is This Answer Correct ? | 8 Yes | 8 No |
Answer / tharindu eroshan henadawithara
3 mA for 11 kv for my sites,and really it is possible in 3c240 xlpe/pilc joints(new ,short distance).
3c240 pilc possible with 8mA max(length and old)
dry country with under ground system.
no rain at all..(no effects from water,but may from see)
| Is This Answer Correct ? | 1 Yes | 3 No |
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?
why does the magnetic balance tests at transformer?
If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?
When can we take Neutral as common neutral link?
what is the ranje of HT cabel and LT Cabel.
why are maintine power factor 0.99 in Eb line? why are used capacitor bank in Eb line? what is the purpose capacitor bank?
4 Answers TNEB Tamil Nadu Electricity Board,
without name plate detail of blower how we can find out the HP & Rpm ? the input voltage is 230v single phase
In ac which gas will be use?
plz explain TSM and PSM.with example suppose ct ratio is 4000/5 and tsm is .15 and plug is at 3.75 if fault current is 8000A.so how i find relay oprating time.
2 Answers College School Exams Tests, ME,
Define corner frequency?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)