we hav seen in electric engine of trains only 1 wired slidng
conecctn is there frm ovrhead line,howevr to complete a ckt
in dc postv n negtv two conection has to b there...so where
is tht negative is been connectd or where it is grounded...?
- 5 Answers
- 6552 Views
- ABB, I also Faced
- E-Mail Answers
Answer Posted / jagadisha.n bmsit
Obviously there should be neutral connection to flow of
current. Positive is connected from overhead line and
neutral connection is from track through wheels..
| Is This Answer Correct ? | 10 Yes | 0 No |
Post New Answer View All Answers
Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.
What does ampere turns shows?
is it value of power factor is more than unit. whats effects in the source supply
Differentiate between real and apparent power?
how to calculate voltage drop and followed by cable calculation?is there avail in formula?
Define ampere
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet
what is meant by neutral compensation factor and where it is used
What is PQA???Applications........
what is the difference between ups & inverter
i need some project topics along with circuit diagram in the electrical adnd electronics engg and also give ome website regarding projects.my mail id is thenmozhi2k7@gmail.com .please help me.
why we used ZNO in Lightning arrester.
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
why in the three pin plug all 3 pins are cutted ?
