Answer / raghunath patil

it is a protecting device which can used for motor
protection to reduce the starting current or trip the motor
when it takes the exceed current than its rating.

Answer / manoj kumar rlaeddy. muthya

starter is an electrical device, which protects the motor from high starting currents. if there is any high currents occurs it will trip the motor and protects the motor from damage.

what is the difference between active power and reactive power and apparant power in practical as well as theoritical

0 Answers  

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what is the function and use of oil filled cables specify its advantages and disadvantages

7 Answers   Alstom,

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

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I have two AC generators, the first rated 2680KVA for 380V/4345A/pf:0.7 and the second rated 3461KVA for 5500V/363A/pf:0.8. I want to parallel the two generator to a bus. The second generator passes through a transformer to down the voltage to 380V and a part of its power goes to another bus so that it's only a part of the total power of the second generator taht goes to the considered bus. I have two Basler DECS100 AVR regulator. How can I make the synchronization ? What others equipments must have ?

1 Answers   CST,

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What is the difference between Isolator annd Circuit Breaker.

21 Answers   ABB, Lanco, NTPC, Power Grid, RInfra,

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Explain what are inter-poles and why they are required in a dc machine.

0 Answers  

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if we want ot select cable size with reference to load current it take than what is the formula and it is same for aluminium or copper?

3 Answers  

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if we put a energy meter in 500 kvar capacitor bank ,then how much units show in energy meter per day.

2 Answers  

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hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.

0 Answers  

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Why Exciter higher ferquency ?

1 Answers   Core Logic,

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what is the difference between power transformer & distribution transformer and what are their ratings respectively?

4 Answers  

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which meter used to measure a flus

2 Answers   RRB,

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