Answer Posted / arasu

we have two types of interlocking the one is electrical
interlocking another is mechanical interlocking.both of
them used for EB/DG chaneover or reversing of motor.so we
give the contactor coil voltage through to the another
contactor NC.

when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

2094

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what is the VA(Volt-amphere)? define with calculation?

1341

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Why the moulded plug comes with domestic appliances instead of assembled plug like anchor, Vinay 5/15 A.

2101

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how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

2821

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Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

2104

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What is the difference between circuit breaker and isolator

1320

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can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.

1860

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please send me previous year questions of jspl through which i could prepare myself for the test.

1931

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what is difference between window type and wound type transformers?where we will use window type and wound type transformers?

2245

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what is effect of leading power facter on the system and billing

2427

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Can i use the B-curve MCB instead of C-curve MCB

2081

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What are the main faults of DC generators?

3067

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Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028

2035

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explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2302

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What is the difference between indoor and outdoor transformer

5990

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