how to check a
transformer
insulation?
Answers were Sorted based on User's Feedback
Answer / kamalkumar.s
To check the use of megger (Phase to Phase) and (Phase To
Earth) the range more then 5 Ohms its k.Below 5 Ohms to
check the cable and correct it.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / sanjay kumar jain
we will check the Transformer PI value by Megger. It should
be <1.25 then transformer insulation isfair
| Is This Answer Correct ? | 1 Yes | 2 No |
if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen
How much no load current of synchronous motor
0 Answers Nirma, Sulphur Mills,
i need to calculate high voltage line power factor daily basics but there is meter reading kwh and kvah while calculating power factor kwh/kvah formula was right. for examble there is point c=13kwh c=1.8 lag c=1.2 lead and c=14.5kvah like that i know that p.f =kwh/kvah but c=1.8lag kvarh and c=1.2lead kvarh points i dont know if u know please reply
what can i do line to line fault
Why colled 440V to 3-phase supply.
what is different between buchhoz relay and pressure relife devices in transformer
How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.
In a 11kv/433v transformer,at the LT side ie 433 V side why do we need to put 3.5 core Cable upto Panel.The full load rated Amps is 666 at LV side.What value of current will flow through the Nuetral Conductor.Why can't we use 4Core Cable instea of that?
Why generally the Rating of Transformers are in additions of 11 i.e. 11 kVA, 22 kVa, 33 kVA, etc........
On what factors the generating voltage depends ? Generating voltage are (3.3kV, 6.6KV , 11KV, 13.8kV) Why so ?
in conventional fan regulators how the current varies with speed?
What is the formula of frequency ?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
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)