Interested to Buy Any Domain ? << Click Here >> for more details...
How the electric train gets the supply of electricity? What
is the return path of the current?
- 7 Answers
- 16488 Views
- NTPC, I also Faced
- E-Mail Answers
Answer Posted / kiran
From over head transmission line,power taken by pantograph
is fed to rectifier which converts ac to dc and given to dc
series motor.the return path is provided through rails
which is connected to ground by insulating
equipment................
| Is This Answer Correct ? | 16 Yes | 0 No |
Post New Answer View All Answers
explain with diagram how to protect transformers and substations from over current with help of CT's?
what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips
what maximum range of star & delta in hp or kw ?
what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?
what is differentila pilot supervision in the incomer control panel in the power station?
how technical is calculated in 11kv line and lt line
how are reversing the direction of dc motor
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
Define phase cross over?
In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?
What is nichols chart?
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
please send me privious exam's queation papers of section engineer(electrical).
What are the significant parts of dc generator?
what happen when we add mentos in cold drink?& why?
