Answer / rajesh solanki delhi

to remove static charge

sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

0 Answers  

---

what will happen if the connections of protection ct reverse? will it burn the ct?

2 Answers  

---

I want to know the principle of rotating flux transformer.

1 Answers  

---

How I design capacitor bank for different load.7MW connected load.

3 Answers   Samtel,

---

what are the protections in 132 kv class electrical systems.....? hw u define that in elctrical terms..? . . .pls answr

2 Answers   ABB,

---

how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

0 Answers  

---

i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers  

---

what is used root two in single phase line?

1 Answers   DVC,

---

HOW TO CALCULATE EARTHING SIZING?

0 Answers   L&T,

---

while running ,synchronous generator is being turned off.what will happen to the current flow??

1 Answers  

---

Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?

1 Answers  

---

there is a power transformer 66/11kV in delta-delta connection has 5 feeder coming out from the secondary side. One of the feeder in it normally loaded (loaded than other feeder)and this feeder usually trips with double OCR causing the bank transformer to trip. Now if the load of this feeder is put on other transformer then that no problems occurs on that transformer or the load. However normally all the test(IR, PI, short ckt, open ckt,grounding test and other ) has been conducted for this but evertything transformer..... I am not geting what is the actual problem...

2 Answers  

---