Answer / sewagudde

a relay is a device used to measure as specific quantity
(current, voltage, frequency,phase displacement etc)and
should that above quantity deviate from the preset nominal
value then a signal is sent to the circuit breaker to
operate.

how to calculate cable size, olr rating, contactor rating and mccb rating,to below given details three phase motor 75 kw,415 v,.85 pf,50 hz?

5 Answers   Cabin Crew, Essar,

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When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

0 Answers   HPCL,

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Where r use in Dc motor in power plant?

2 Answers  

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what is NANO TECHNOLOGY?

2 Answers  

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sir i have applied for isro-09. still i did not got the HALL TICKET.

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What is the difference between circuit and network.

15 Answers   Jadavpur University, Sail, TCS,

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is synchrnous pannel is need for two eqal rating transformers to run in parallel

1 Answers  

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What is self exciting?

0 Answers  

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What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

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if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen

2 Answers  

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if a 2 ohm resistor,2 ohm capacitor and a 2 ohm inductor is connected parallely to 12v source.Then what is the value of current in each branch.Is current flows in each branch at the same time?If not so then provide the proper sequence

1 Answers   Tata Steel Limited,

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how to find the 2500 KVA transformer rated primary and secondary volt and current?

4 Answers  

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