Answer / sunil patwal

Yes, One vfd is possible to connect two induction motors at
the same time but VFD selection is depand on motor rating.

Answer / kunal salunkhe

It depends on the power rating of the power semiconductor
components used in VFD. Ideally the logic board which are
DSP based in most cases can be used to trigger two sets of
the power semiconductor converter circuits. but the power
semiconductor devices ratings decide whether you can connect
two motors to it or not.

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 Answers  

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How can calculate thermal overload in relay?

1 Answers   ABB,

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why is the power generator connected as star earthed or star earthed through reactance and what its features ?

0 Answers  

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What are the functions of different probes used in cro?

0 Answers  

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length of 4 core cable 95mm from substation LV VFD panel to Motor at field approximately 150 meter. Motor stop and power has been isolated from LV MCC ( Substation )to disconnect Motor for services. After Motor completed service propose to reinstall and reconnect Motor Cable, found earth cable sparkling during touching at metal / motor body. Inspect by clamp meter found earth cable have current flow AC 1-2amps and all earth cable at MCC LV also have current flow as same value. why it is happen?

2 Answers  

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is onbserved the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

1 Answers  

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

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3phase lt motor winding how to checking with megger

1 Answers  

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Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?

1 Answers  

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we need a ntpc previous papers

0 Answers  

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What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?

2 Answers  

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1.how many types of relays? 2.difference between ATS& STS?

0 Answers   L&T,

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