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Answer Posted / mani777
80% of its rated amp.
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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
L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
State Maximum Power Transfer theorem.
How to calculate the sag on transmission Lines.
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?
Mention how NPN and PNP transistor works?
How to calculate VA rating for CT or PT or Control Transformer?
What is mean by hot and cold loop testing? What is the difference between them?
what is meant by residual over voltage & residual earth fault ?
Do Phase angle measurement have any application in freq/harmonics measurement? If so how?
What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?
what are the 4 rules to start the motor?
