What will be the minimum megger value of 1700 KVA Transformer?
a) Do megger value varies according to climate conditions
and area .
b) If megger value is 100 mega ohm is it good for new
transfomer.
Explain?
Answers were Sorted based on User's Feedback
Answer / pillay
minimum meggar value of any electrical installation is best
determined by the operating voltage rather than KVA.higher
the operating voltage higher the meggar value should be.
Climatic conditions can influence meggar value, but any
climate or location the meggar value should be above the
safe accecpted value.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / mahesh
plz tell me how we can calculate that how much resistance value is acceptable
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shariff
There is no minimum or max. value for any transformer
Insulation resistance values( not megger value),the main
factor here is the polarization index value .ie, the IR
value should decay with the time of the time of applied VG.
and the ratio of PI should be morethan 1,and the climatic
conditions will decay the IR values.
| Is This Answer Correct ? | 0 Yes | 1 No |
would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?
why transfromer rating gives in MVA Or KVA? Why not in MW or KW?
i have a wire.and the current flowing in that.when we cut the wire then why dont we seen the elactrons....
What are the protections to be used for Generator?
what will happen if the field and armature both are made to rotate in a synchronous machine ?
Generally in d.c. circuits the direction of current is from possitive to negative.In a.c.circuits what is the direction fo current flow
We have 2 11kv/433v transformers for 2saperate acb for mv panels and 1 bus coupler acb. Suppose I’ll close bus coupler what will happen or it will be share the load. Please suggestion and any modification required.
How many types of colling system it trformers?
what is the distance between two overhead lines
400Kv,can it be generated?why?
please send me previous year questions of jspl through which i could prepare myself for the test.
When we need up only in o/p 440v, so why we use directly in 11kva in input?
0 Answers Lupin, Medhaj Techno Concept,
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)