Answer Posted / k.prakashchandra

For measurement of VAR

I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

2026

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Star Delta Diagram with full description

2438

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What is force on a conductor in a magnetic field ?

1136

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why you don not show protection and type of isolation in key single line diagram?

2031

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Why synchorised generators are used for the production of electricity?

1223

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Please explain me about Relay curves and their sources to read ?

1856

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what is the significance of tan&delta and how it performed in power transformer

1974

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The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

2033

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If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

1118

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In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

1990

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How to calculate the multiplying factor for energy meter with ct ratio given

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What is the normal phase difference between the voltage and the no-load current in a transformer?

1306

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Can RCD's used to protect the VVVF drive if not why.

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What is trip and closing coil in cb? Why need of them

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Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

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