Answer / tharan

power frequency incresing voltage r step up.. power frequency
decreasing voltage r step down..

Answer / omwikha

Voltage=4.44fN(phi). Where f= frequency
Thus increasing frequency automatically will increase the voltage and vice versa.

What is mean by making & breaking capacity of circuit breakers?

3 Answers  

---

We have two 1 phase heating coils having same resistance of 25ohm, but during operation one takes 3A and other 6A Is it posiible Pls. explain

5 Answers   Bhel,

---

Find active & Reactive Power transmitted in a transmisston line having Vs30 degree(sending end) to Vr(zero degree)at receving end with line inductance X ohm. Vs(30degree)-------------------Vr(zero degree) X ohm

3 Answers  

---

Sir we are using 250 kva DG its Diesel consumption 25 lits / hrs maximum load 160 kva now how to calculate units/ litres

1 Answers  

---

how an electron flow in a wire. can it flow like a car running on the road?

2 Answers  

---

Define heating time constant of electric motor.

3 Answers  

---

how to calculate short ckt current of trafo. ex.3-ph 3MVA trfo. 11/440, impdence voltage=7.25%

1 Answers  

---

What is the minimum distance between MV busbare (P to P & P to E) as per some standards

1 Answers   ABB, Sejong,

---

What is differnce b/w tie breaker and bus coupler?

1 Answers  

---

What is the role of ESP(Electro Static Precipitator)in steam power plants? Where it is located? How it works?

1 Answers  

---

lightning arrester rating selection procedure: (line to line voltage(kV)/(squ.root of 3))*squ.root of 2. now the question is, IS this above formula correct for both STAR and DELTA connected system???

1 Answers  

---

The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

0 Answers  

---