what happens when a DC supply is given to AC motor?

9 Answers   Areva, ISMT,

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In a closed circuit if two 5volt power supplier are connected in parrel what is the current direction in tihs circuit?

1 Answers  

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How can ou verify the size of conductor 50Sq.mm ACSR

0 Answers   Adani Power, Apar, EFS, Polycab, WHF,

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One of our gas turbine generator unit "1st stage rotor ground fault" alarm was occured several times. we tried to measure some voltage vulue ground fault protection relay (UNS3020a made by ABB and we measured the value of: Ground: 0.9VDC 5V: 5.8VDC 24V: 23VDC u+: 300 – 350mVAC Rf1: 17.5mVAC Rf2: 17.6mVAC The unit still running and the alarm was reset. As of 6pm yesterday and unitl now no alarm happened again. I our protection relay was defective?

1 Answers  

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Define motor & pump?

3 Answers  

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we need a ntpc previous papers

0 Answers  

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where does core based current transformer is used? and what is the value of lux in a work station?

1 Answers   Space Matrix,

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A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 Answers   DRDO,

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WHAT IS DIFFERENCE BETWEEN POTENTIAL DIFFERENCE AND E.M.F?

2 Answers  

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Generally at what power factor the electronic equipments like computer, TV, EPABX etc.,operates. Please tell me.

1 Answers   HAL,

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What types of high speed CMOS circuits have you designed?

0 Answers   Ansal Housing, IBM, Intel,

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How to take Transformer oil Break down voltage test?

9 Answers  

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