Answer Posted / guest

In single phase by changing the current
direction of any one winding, either the
stator or rotor winding.
In 3phase, by replacing any to two phase
terminals, the direction will change

What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

2396

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why and how voltage sharing in transformer, during magnetic balance test ?

2407

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A d.c. Shunt motor is found suitable to drive fans because they require?

1390

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Which type of DG need Netral Earthing?

5387

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Ratings of power transformer,Distribution transformer.

1662

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How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

2292

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While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1984

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Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

2253

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What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2695

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hello friend i wish to study a course related to the electrical construction, controlling and monitoring , which course i want to study? pls give me the name of institute?

1852

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What are IR values and what it should be for coil and for insulator

3045

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What is the difference between rulling span and wind span of of an Over Head Transmission Line?

2385

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whether fibre optic cable in high voltage earth conductor is used for protection circuits

1672

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1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.

2260

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What is the basis for framing the rules of block diagram reduction technique?

1585

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