how is the testing of an REF relay? what are the test REF
circuit having?
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does over charging of a battery reduce its life?
How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?
how many types of cbs?with pcific ratings?
what are the types of towers in HT transmission
What should be the conservator minimum oil level required in 2 mva transformer
how can we calculate that how much capacitor is needed for a system to increase the pf?
how does damper winding produces torque in synchronous motor?
This is about the recent problem that we have faced in our project site. We have 6/7.5 MVA. 66/11kV three phase star - star power transformer. The neutral was solidly connected to the earthing mat. But because of high resistance of earthing mat (130 ohm on LV and 180 ohm on HV), one day LV side neutral earthing conductor melted and we had a huge damage. Can any one plz tell me what might happen when we connect power transformer neutral to the earthing mat which has high resistance (>100 ohm ) ?????
How many loops can be provided in a circuit as per IS rules.?
what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?
Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used
where can i get the previous years question papers for APGENCO exam.
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