WHAT IS THE MINIMUM IR VALUE FOR CABLE CHARGING
Answers were Sorted based on User's Feedback
Answer / pravin kumar
The minimum Insulation Resistance value for the power cables
2mega-ohm/kv this is both applicable for LT& HT side
for ex:
11 kv power cable need IR value is 22 mega-ohm
| Is This Answer Correct ? | 25 Yes | 10 No |
Answer / pgr ram
for HT cables (6.6 KV to 33KV) above 500 megohms is
required. For LT cables (1100 volts) minimum 100 meg ohms
is required
| Is This Answer Correct ? | 20 Yes | 13 No |
Answer / deepak marya
IT IS ONE MEGA-OHM PER KVA AT 70 DEGREE CENTIGRADE.IR VALUE
IS HALF FOR TEN DEGREE CENTIGRADE RISE IN TEMP.
| Is This Answer Correct ? | 4 Yes | 4 No |
During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain
whats the one main difference between UPS & inverter ? And electrical engineering & electronics engineering ?
What is the main difference between power transformer and Distribution transformer?
9 Answers APTransco, Bhel, NTPC,
How can transformer winding insulation be measured (Delta & Star Connections)?
concept of busbar and load dispatching..?
i want to model paper for section engg.
Why can we connect the mobile charger both ways?
what is the relevance of knee point voltage in protection and metering grade CT ? and basically what is knee point voltage ?
What are the types of Transformer? Name them.
how we calculate the knee point of a protection and metering CT and what is the testing procedure.
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)