Answer Posted / kishore

actually acb is made for LT bcz EVERYTHING HAVE A LIMIT,SIMILARLY IF WE USE VCB AT LT THEN NO PRBL BUT IT IS A GREAT ECONOMIC LOSSES FOR US OK.

The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

1481

---

Cb closed condition if there is a tcs fail whether cb will trip or not

1323

---

How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

4007

---

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

3969

---

How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???

1614

---

---

if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

1675

---

What is the previous name of Cox's Bazar

1466

---

What facility we get after CT secondary earthing and how?

1726

---

Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

1710

---

describe the fully control circuit diagram of ac drives

1369

---

Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

1550

---

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

1522

---

why cable i burning without tripping. how can protect led street lights

1034

---

what is the function of capacitor duty contactor in an capacitor panel???

3629

---

What are the internal and external faults?

622

---