Answer / kmr227

The cosine of the angle between voltage and current in an a.c circuit is called as power factor(pf).

CosØ= R/Z
CosØ= Apparent Power / Active Power

Answer / abhishek

power factor tell us by which ratio the output wave of any load differs from the output wave of resistive load. 

Answer / ashok

1. The cosine angle between voltage and current in a AC circuit is called PF.
POWER FACTOR=P/VI
POWER FACTOR=KW/KVA
2. The ratio between resistance and impedance
POWER FACTOR=R/Z

compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor

0 Answers  

---

what is the formula to calculate voltage drop/loss on 66KV Transmission Line?

0 Answers  

---

AP Transco Assistant Engineer (Electrical) Model Question papers

2 Answers   APTransco, HCL, Tranco, UPSC, VMware,

---

why open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

3 Answers   HCL, NTPC,

---

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

0 Answers   Caterpillar,

---

What is DC power factor??

2 Answers   HCL,

---

WHY IS THE POWER FACTOR NOT MORE THAN UNITY.

6 Answers  

---

DG lube oil and waste oil how to dispose outside and there is any authorised vendors will be there for this.

2 Answers  

---

What is SFU why it is used

1 Answers  

---

what is the difference between dropout fuse and horn gap fuse. how to choose between them

1 Answers  

---

what is the transformer

5 Answers  

---

explain all the classes with example

0 Answers  

---