Answer / ayan

I guess its a typo..and instead of radio it should be ratio.
The ratio of the Kva & Kvar is the sine of angle Φ ,
considering in the power triangle the base/adjacent is "KW",
the opposite is Kvar and the hypotenuse is the representing
KVA and Cos Φ is power factor.

Power is represented in KVA and KVAR because of presence of
Power factor and Reactive power.

Answer / ayan

&#934 is Phi or Theta

Answer / madhu

The ratio of KVA and KVAR will give sine value of Phase
angle. From this we can calculate Phase angle. By using
phase angle we can calculate real power and reactive power
kVAR. KVAR gives the amount of power required by the
magnetic element in the machine (Transformer & Induction
motor) to produce magnetic flux.

what is the power factor of an inductive load ? (i) Zero (ii) Lagging (iii) Leading (iv) Unity

5 Answers  

---

Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

0 Answers  

---

i am completed my degree(B.E EEE) 2014 anychance to get electrical licence plz help me

0 Answers   JLL,

---

what is units of resistance

3 Answers  

---

what are the industrail measures to overcome ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system? plz reply

3 Answers  

---

---

in the exciter the power is feeded from battry or control or whatever.and we need it in the generators for the stating . do we need it in the shutdown also?i mean the exciter>

2 Answers   Shell,

---

explain LED lamps?

1 Answers  

---

say a transformer is designed for 33/11kv step down with ratio 0.33 for load 1 mva. if am giving 11kv as a input that same transformer what will happen to its o/p voltage. and whether it can be operated for 500kva

4 Answers  

---

What happens to the terminal voltage of an alternator connected to a bus bar when it is suddenly disconnected from the bus bar??

2 Answers  

---

Could anyone clarify my wondering. What is the difference between knee point voltage and saturation voltage of the CT. Is their any formula to calculate these values?

2 Answers  

---

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

3 Answers  

---

why back up fuse used in vacuum magnetic contactor?

1 Answers   KNPC,

---