Answer / suresh

motor has a stator and rotor.
if the rotor speed is above the synchronous speed it act as
a generator

Answer / dilip

if it is induction motor, then its rotor speed should be
greater that the RMF's Speed=Ns.
it should be noted that it will draw reactive component of
power for exciting it self.

Answer / vijayakrishna

motor has a stator and rotor.
if the rotor speed is above the synchronous speed it act as
a generator
if it is dc moor, then if you change the supply then it act
as generator

Answer / khushalchand

Only a Double excited Electrical machine can act as a
Generator. Please note eg. you cannot generate power from a
squirel cage induction motor as it does not have a dual
power source, it can only operate as a motor as the rotor
is short ckted. In all other cases where the stator
(winding) and rotors(armature) are powered seperately, only
then energy can be converted from mechanical to electrical
(generator) or electrical to mechanical (Motor)

Answer / dilip

if it is induction motor, then its rotor speed should be
greater that the RMF's Speed=Ns.
it should be noted that it will draw reactive component of
power for exciting it self.

Answer / taufic

If we are using DC motor. We can DC motor act as Dg set
with combine primemover.

Answer / p.senthil kumar

motor acts like generator for a short period of time when
it was stopped by removing input supply;this is called
regeneration. This regeneration EMF can be used for motor
braking systems in industries.

Answer / manimaran

yes. it will act on generator.

State the function of control rods used in nuclear reactor

1 Answers  

explain the transient reactance

1 Answers  

in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

3 Answers   Voltamp,

pls tell me function of closing coil of A.C.B.

0 Answers  

HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

0 Answers  

hi, could someone help me to find a control design for syncronising panel .

0 Answers  

Can anyone tell me some hints about what type of questions are asked by the interviewer by an Electronics engineer when company is installing an IPP and wants a team of engineers?

0 Answers  

WHAT IS THE MINIMUM IR VALUE FOR CABLE CHARGING

4 Answers   Google,

State Maximum Power Transfer theorem.

0 Answers   ABB,

what is pole slip ?

4 Answers   NTPC,

If load current is 70amps or 50amps what range of CT to install for ampere metering

3 Answers  

Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers