Answer Posted / rishi

it is the ratio of true power to apperent power.it's value
should be less than 1.

Could you measure voltage in series?

1189

---

I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

2017

---

Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

1805

---

Can u tell me design of switch yard

2114

---

While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

2045

---

For RCD (Residual current device) Icu is defined. How i can find Ics for them?

2008

---

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

1942

---

what happens to the supply voltage if there is any change in frequency?

6339

---

Tell me about ur past electrical maintanence job

1839

---

How to maintain ac plant?

1896

---

what is the basic need of domestic loads 1- voltage 2- current

2044

---

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1611

---

I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

1660

---

How much earthing frequency is capable?

1915

---

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

1971

---