Answer / gangadhar

in tractoions dc series and separatly excited moters are
used

Answer / guest

both ac$ dc

Answer / ankit

its single phase ac.. with frequency 50/3 Hz...

You can find it written on any delhi metro track... :)

Answer / varma

AC 25 KV 1 PHASE SUPPLY

Answer / amit

to overcome losses dc is transmitted but in electric locomotive it is converted into ac and feed to induction motor which is controlled by VVVF and EMF injection method

WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 Answers  

What is the function of the exiter in DG.

3 Answers  

what is priming pump?why it is used ?

2 Answers  

HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD EVEN AFTER IT IS DE ENERGISED

6 Answers  

difference between servo motor and synchronous motor

0 Answers   Hitachi,

HOW TO CALCULATE LV CABLE SIZING?

2 Answers   L&T, MRF,

we have 400kv/6.6kv transformer ,it has total 9 taps on HV side with normal tap on tap no 5.when we took the ratio test we observed that ratio was decreasing from tap 1 to tap 5 and was found increasing from tap 5 to tap 9.What is the reason?if anyone have related document then please send me on the email id ankushbahale@gmail.com......plz plz

1 Answers  

EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)

1 Answers  

Induction generator has = A negative speed B negative slip C negative voltage D negative current

2 Answers  

My switchgear busbar is rated at 2000A and just imagine the actual load on busbar is 1000A. From that busbar there are 10 outgoing feeders. Now the question is will the load be 1000A on each outgoing feeder or 100A per outgoing feeder. 2nd thing how do i calculate the load on individual feeder. Thanks for your time. Please provide some clarification on this issue.

1 Answers   Alstom,

different b/w counter poise and ground wire

1 Answers   L&T, TCS,

What was the Dg set radiator and lube oil temperatures trip in ACB

0 Answers   Gland Pharma,