Answer / har

Power factor is the ratio of the real power that is used to do work and the apparent power that is supplied to the circuit.

Answer / d.p.

it is the cosine of the angle between the phase voltage and
phase currentfor a given load.

Answer / shobana

p.f is the load angle between the voltage and current.

In a star-star connected h.t transformer why we use NGR on the secondary (l.t)side.

3 Answers   Star, TATA,

---

if There is Short circuit in Power Transformer, what will happened to Buchholz Relay.?? How Buchholz Relay will respond.??

2 Answers  

---

what is voltage, and how it makes the electron to move?

6 Answers  

---

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

0 Answers   Cosma,

---

what is HVDC, what are advantages over conventional system?

1 Answers  

---

if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen

2 Answers  

---

Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 Answers  

---

what is the principle of tubelight ??? what is the function of starter and choke ???

1 Answers  

---

How does a ideal c.t. works ?

0 Answers  

---

What happen if field ckt is open when a sailent pole alternator connected to infinite bus

3 Answers   Bhel, Nilkamal,

---

first 3 men were there .again 3 came.total how much?

11 Answers   Wipro,

---

WHAT IS THE DIFFERANCE BETWEEN IP54 AND IP55

2 Answers  

---