Answer / capseee

When the prime mover rotates the rotor will rotate and cuts
the magnetic field line around it and hence power is
produced and the mechanical energy is transfer into
electrical energy.

Answer / shaikh

The key different between an alternator and a generator is
what spins and what is fixed. On a generator windings of
wire (the armature) spin inside a fixed magnetic field. On
an alternator, a magnetic field is spun inside of windings
of wire called a stator to generate the electricity.

Answer / kumar

for example take gen set in gen set alternator is coupled
with diesel engine .so whenever engine rotate .shaft of the
engine is coupled with alternator rotor .in alt stator has
permanent magnet so at time of rotor rotating its cut the
magnetic flux therefore Mechanical energy converted into
electrical energy .

rating of ups??

1 Answers  

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In a 3 phase,400v,4 wire system, 2 incandescent lamps, one having 230v,100w and the other 230v,200w are connected between r phase- neutral and y phase-neutral respectively. If neutral wire breaks which lamp will fuse first and why?

3 Answers   Eskom, SSC,

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

0 Answers   OPS,

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what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

0 Answers  

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We have .ht motor which is 60Hz.we run on 50Hz.so that it's speed reduce but we had one prob.that motor winding temp increase up to 135 deg.we want reduce this temp.what to do?we arrange ext.cooling fan but not much effect.we want reduce this temp. Inhouse without affecting much.cost. also don't want reWINDING OF MOTOR?

3 Answers  

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EARTH AND NEUTRAL ARE JOINTED OR NOT?

7 Answers  

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I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

0 Answers  

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How many sprinklers should be in one pipe line?

0 Answers  

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when will be the iocl interview results ifaced the interview on september 8 th

0 Answers   IOCL,

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in a refinery one motor is suddenly stoped. what will do how can i findout the problem explain step by step

2 Answers  

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what happend if we remove dc exciter from moving machine..: gg

4 Answers  

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