Answer / pavan krishna

reactance is nature of either inductor or capacitor but
impedence is mixed effect of the resistor and either
capacitor or inductor

Answer / md. obaydur rahman

The impedance Z of an alternating current circuit is a
complex number given by Eq. (1).
1. Z = R + jX

2. Z = jL\omega = jX

3. Z = -{j\over C\omega } = jX
The imaginary part X is the reactance. The units of
reactance, like those of impedance, are ohms. Reactance may
be positive or negative. For example, the impedance of an
inductor L at frequency ω is given by Eq. (2), so X is
positive. The impedance of a capacitor C is given by Eq.
(3), so X is negative

when we change tha taps from 1-16 in 100mva tr whether a constant voltage avaliable till it reaches tap 16 or voltage change as per taps change

1 Answers  

---

How to select a D.G set for calculated load of 110kW..?

7 Answers   Shakthi Power Systems,

---

On what principle reluctance motors work?

1 Answers  

---

what is the workimg of ct &pt?

5 Answers  

---

what is the purpose of bypass mode in energy lighting transformer?

0 Answers  

---

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

0 Answers  

---

why there is a 2 slits in three pin's earthing pin?

1 Answers  

---

Generator protection &generator test

1 Answers  

---

what's the activities of reactor in Buchholz relay?

1 Answers   Yahoo,

---

Maximum efficiency occurs in electrical machines is at i)Full load,ii)50% of full load,iii)Near full load,iv)None of these

1 Answers   IFFCO,

---

if i am in front of transmission line how to know that current direction without any equipment

0 Answers  

---

we all know that corona is nothing but ionization of air around the conductor and there by allowing current to pass through ionized air.but we are not getting any short circuit in between the respective phases though the air turned as a conductive media between them??

1 Answers   Siemens,

---