Answer / bharat

Field control & Armature control.

Ref. Electrical Technology, Auth. BL Theraja Vol-II

Answer / balamurugan

ward leonard method,armature control.

Answer / erharisheee51

BY CONTROLING THE VOLTAGE , WE CAN CONTROL THE SPEED OF THE
MOTOR.

Answer / soutrick chakraborty

we can control the speed of the dc shunt motor by two
methods. but at first we should know there are two type
speed, 1> base speed 2> top speed. for reach the base speed
we increase the armature voltage maximum , which is
mentioned in motor nameplate. and reach the top speed we
should decrease the feild flux, it means feild current,
which is also mentioned in motor name plate.

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

0 Answers  

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sir, Two different rating of generator going to connect parallel, can it set same DROOP or different. Why? Please explain

2 Answers   Kirloskar,

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Why do we perform an open-circuit test and short-circuit test on the transformer?

0 Answers  

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Can we get the shock if Power system is unearth means delta type take an rated voltage as 6.6 KV?

9 Answers   Reliance,

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what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?

0 Answers  

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What are the effects of electrical faults?

0 Answers  

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for flour light (garden light) how much deep need to put 222ov 0

1 Answers   Anantara Hotels,

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which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

0 Answers  

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what are the needs of electrical earthing.... other than protection?

5 Answers   Eskom,

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how to calculate the ct burden?

1 Answers  

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Baud rate is used to descrice...?

2 Answers  

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why we can't use more then 50 hz in india ? Is it possible ?

7 Answers   DVC,

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