Answer / p.r.gowri sankar

The "Safety protections of the Transformers" are fallows
1.Neutral Earthing
2.Bucholtz Relay
3.over Current Earth fault Relay
4.Differential Voltage Relay
5.Instantaneous Voltage Relay
6.Earth Leakage Relay

CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

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What will happen to magnitude of voltage of other two phases if one phasw will touch the ground?

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how can u say about the line by looking at the tower ? {voltage rating of the line}

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what is ph test in coolent cheking

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how tto ingress mw in turbine explain.procedure ?

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Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

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quantizer means?

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1.differance between onload ups and off line ups.

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how do we calculate contactor and fuse rating for a motor if its full load current is known,i want exact calculation for 1.5 kw motor????

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In ACS 1000 drive we used 12 pulse convertor.Why dont used 6 pulse or 3 pulse convetor

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why cu losses called cu losses.

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How the annunciator works ? How to do its wiring

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