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..............

1820

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

3907

why and how current drawn by battery charger depends upon the altitude where it is located?

2039

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

2214

What are the factors influence the choice of an electrc drive?

2080

what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2546

What are the advantages and disadvantages of open loop control system?

1121

Keywords: Die, Card, Coin, B/N 2 To 12

1280

Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer?

3101

In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

2310

I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE

1937

when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

1805

what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

2335

What are the conditions for sustained oscillator or what is backhouse criterion?

1145

acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

2398