Answer Posted / syed qamar abbas
The ideal value of earth resistance allowed is 1 ohm or less
for equipment's body earthing or grounding like generator,
Main distribution boards , motors etc. On other hand the
value of earth resistance allowed for lightning protection
system is 10 ohms (ideal)
Is This Answer Correct ? | 8 Yes | 5 No |
Post New Answer View All Answers
In three pin plug 6 amp. 220V ac rating. Why earth pin diameter is higher than other two pin? What its purpose ?
How the capacitance og capacitor volatage transformer is decided?
1 hp is equal to how much watt?
What is the name of the winding to which supply is given?
Can anyone explain me about the capacitor calculation
What is Instantaneous Earth fault relay,how will work
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
How do u analyse protection fault when vcb tripping on load
A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
how can maintaince the acb contactor moveing and fixing kit
How to calculate the fuse rating depend upon the DC circuit?
Can u Explain about the electronic trivector meter and the use of data converters in them?
what irequirment need to be followed when working on live equipment
what are the sample questions asking to the test cunducting for electrical superwising lisence test?