Answer Posted / k.prakashchandra
In case of stations ,the maximum recommended values are
33KV-5 ohm, 66 KV -2, 110 to 400- 1.0 and generating station
-0.5.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What will happen if the d.c. Machine is operated below rated speed?
which pump used in STP
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
What is a surge supressor why its is used in synchronous generators
what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?
How to improve fuel cell in a distribution system?
What is the drawback of static coefficients?
Do u know any one? how to find out in motor rated amps? formula?
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?
What are the reasons for the parallel operation of transformers?
What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation
What are locations arc protection relay is fixed.
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?