electrical machines
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Answer / neelam
Electrical Machines are classified in to DC Machines and AC
Machines
DC Machines again Classified in to DC Motor and DC generator
DC motors are broadly classified in to SHUNT and SERIES
Motors and COMPOUND motors
DC Generator is Classified in to SERIES and SHUNT generators
and COMPOUND generators
AC Machines are classified in to SYNCHRONOUS and
ASYNCHRONOUS Machines
Asychronous machines are INDUCTION Machines
| Is This Answer Correct ? | 65 Yes | 2 No |
Answer / shinyvikram ganji
DC MOTOR,DC-GENERATOR,AC MOTOR,SYNCHRONOUS MOTOR,ALTERNATOR
| Is This Answer Correct ? | 29 Yes | 1 No |
Answer / hemnath
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| Is This Answer Correct ? | 8 Yes | 2 No |
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
why the capacitors works on ac only
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1 Answers NK Power Systems, Reliance,
In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.
Why the earth to phase voltage is high 250 compare to other two phases
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
What is difference between AC and DC resistance
tell me about sf6 breakers
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
what is the difference SCR & TRIAC?
how can we represne the analog signal and digital signal if want to measure the speed and we have to use PLC
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