what the main difference of the 3 phase and 2 phase power supply??

3 Answers  

---

Is this possible to synchronize the two different ratings of dg

1 Answers  

---

why we use DO Fuse in H.T. Line ? What is the purpose of DO Fuse

4 Answers  

---

why the rating of transformer in k.v.a

4 Answers  

---

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

6 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  

---

why 30kva ups buzzing(hamming) sound?

2 Answers   Madhya Pradesh Electricity Board MPEB,

---

what are the merits and demerits of synchronous motor over an induction motor...??

5 Answers   NTPC,

---

Why substation battery room is coulered black?

1 Answers  

---

If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

---

AVR

2 Answers  

---

why v use only sodium bulb or orange color lights on streets, y nt CLF OR TUBE LIGHTS

3 Answers  

---