How to control the dc motor in ac supply without thyristor circuit?

2 Answers  

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What happend if we connect star point to ground of a star connected motor? And what will be effect on system and effeciency of motor?

1 Answers  

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low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 Answers  

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When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.

1 Answers   BWSSB,

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what is Thermocouple? Type of its.

2 Answers  

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how much current will take for 1kw power. and what is the eqoutiion which is connecting with kw and A.

2 Answers  

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Impedance relay is directional relay or non directional relay?

2 Answers   KSEB, NTDC,

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what is a diffrence between MCCB, RCCB, MCB, & ELCB ? what is rated current e.g. on motor name plate indicated that is rated curent? what is full load current? If we run D.C. motor with mechanical coupling and we measure voltage on terminal it shows voltage or not ? same in AC also possible ?

5 Answers   Reliance,

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Where do we adjust the setting of thermal over load relay & how cal calulate.

1 Answers   Hilton,

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ABOUT AC GENARETORS AND MAINTANANCE AND TYPES OF GENARETORS

1 Answers  

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how can we convert 48V dc into 12 V dc? Any standard device for it??

2 Answers  

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where the protection CT in neutral of transformer be located, before bifurcation or after bifurcation and why.

2 Answers  

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