Answer Posted / nur.asidik

15kW motor is small load categorized, DOL will be the best choise, you need at least 6 to 8 times of kW at motor starting

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

7981

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

1670

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What is the relationship between voltage,current & frequency?

1794

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can some one clearly explain why -48 volt DC use in telecom site????

1701

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Define de-sensitivity?

1141

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

2290

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Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??

1882

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What are chief characteristics of state-space method and its techniques ?

2169

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Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1834

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

1889

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why lightning arrestor are made in two stack of insulator but why not cvt

2088

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What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

2431

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we specify current in case of feeder but in case of distributor voltage, why?

1822

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In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

2161

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How to measure the earth resistance value in a concrete pavement(flood light area)?

2229

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