Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / baikunth
As we know DC current is uni-directional.The deflection
system attached to the megger is generally PMMC type which
eorks only with DC. Another reason is when DC current flows
in the winding of a motor or transformer the capacitance and
inductance do not act upon the current and the only leakage
current that flows through the insulation is measured.This
gives faster and accurate measurement.If we use an AC megger
the reading will be erroneous because the capacitance of
winging will allow to flow high current and breakdown of
insulation will not occur due to alternating action of
current.
| Is This Answer Correct ? | 20 Yes | 2 No |
Post New Answer View All Answers
What are the advantages of instrument transformer?
How many devices can be connected in one zone of FACP
Why does the radius of armature is less than the radius of pole shoe?
how does a submersible pump work..?
how can i get the formula to find out the cable size if i know the load of main fuse protection.
We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com
design a LV scheme for a 15 storied building?
wat is meant by PX class in ct?
How can find thermal state value in relay for calculate thermal overload.
How to megger test 11 kV cable and the acceptance IR value
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
Write a note on Treatment for electric shock.
Why efficiency in thermal power plant is low?
in what type of applications v can use q meter?
