why the the electrical
machine coil are damage ?
How to prevent it?

Answer Posted / chand

most common reason is failure of coil insulation due to heat and ageing factor.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

1945


Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

1504


How does the phase sequence controller works, how it identifies the phases? confirm working principle

1617


Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

1759


Can i replace Earth leakage relay to the faulty Earth Faulty Relay

1049






WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?

1485


We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

1748


how to changeover ups in this power failur time?

1535


I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1475


Define conversion efficiency of a power amplifier.

703


how to test the electrical panel.ht lt mcc pcc.

3219


How you give clearance to a spare feeder.

1225


What are the different power system losses and how can it be eliminated?

1573


66kv under ground cable how to layaing in ground any special case two ckt r runing

1544


stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

2202