Answer Posted / anand

transformer nuetral is connected to earth to discharge the unbalanced current in the circuit.
Ct's secondary side also earthed to discharge secondary voltage and current to avoid flashing.

WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME

1884

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What is the difference between solid grounding and impedance grounding?

2125

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Explain what is rated speed?

1142

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Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

2177

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Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.

1941

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Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2

1864

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what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2076

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What is the drawback of class b amplifier? How is this minimized?

1139

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how will we calculate the copper wire load..

1938

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a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

1709

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what is two point starter?

2125

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1.What is captive power plant? 2.What is national grid?Give brief idea.

2156

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Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

1867

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How isolater function when installed inelectrical 440V wiring

2245

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we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?

1541

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