Answer / john

in this condition motor get single phasing so it will be
tripped or its winding get burn

Answer / niranjan

The motor will keep on running for a while but the current will rise on the other two phases and the overload relay will fall out, if its properly set and the motor will stop if the overload relay is set to high the motor will burn out

in the start Motor will start to shake the if there is no protection devices for over-load on the motor it will simple explode:)
Three-phase motors also vibrate less and hence last longer than single-phase motors of the same power used under the same conditions.

Answer / rangan

IT'S RUN AT HIGH SPEED .

what is an impedance & inductance ?

4 Answers  

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A electrical meter has load 500 kw. In 2 hr what rading will come on meter.

2 Answers  

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Why air gap in rotating machines should be small?

3 Answers  

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what effect will 10 milliampere current cause to human body

1 Answers   NPCIL,

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

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What is difference between metal clad & metal enclosed switchgear?

2 Answers  

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what does happen if generator frequency fall in running condition & what should require immediately

4 Answers  

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How to convert a two phase power into a three phase power in induction machine?

0 Answers  

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what is the voltage level which is used in transformer short circuit test

1 Answers  

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what will happen if we use cylindrical conductor instead of flat cu conductor in transformer

2 Answers   Crompton Greaves,

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Write down the classification of the transmission line?

1 Answers  

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

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