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HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
how can motor both beasrings insulation resistance can be check?
Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.
what is earth resistance? how to measured? and give values at power station and mcc area?
What is vacuum circuit breaker.define with cause and where be use it device?
list the advantages of RCCB over other circuit breakers?
WTA used cb?
ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
what is a reactive power? what is the relation with power factor?
What is Faraday's law
some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?
what is inter connected dc generator?
how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!
Benifits of 3ph 4 wire metering over 3ph 3 wire
