Answer / hamed

Soft starter means useing auto-transformer to increase the
voltage gradually till it reach full speed.

Is=Voltage/sqr.root(X^2 + R^2 ),
So it is clear from the formula that the Is is small when
the Voltage is small.

break down of electricity is more in summer or in winter ? give reason

4 Answers  

---

why we maintain 50hz ,220volts,20Amp,ratings fixed every where in india,,electricity

1 Answers  

---

What is the resistance of the field winding of a d.c. Shunt generator kept low?

0 Answers  

---

what is the roll of power factor in induction motor.

3 Answers   Hindalco,

---

What are stable systems?

0 Answers  

---

is it necessary for 200 kva transformer to have marshaling box and cu plate earthing for neutral

1 Answers   Blue Star,

---

How to determine earth fault level to set relay for a normal distribution system of 11 kV , 100 A load????????

1 Answers   TCS,

---

why there is 1 phase and 3 phase but not 2 phase and 4 phase?

3 Answers  

---

WHAT IS THE DIFFERANCE BETWEEN IP54 AND IP55

2 Answers  

---

which type of capacitors using in single phase motors

1 Answers   Vishnu Infra,

---

when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

0 Answers  

---

What is the operating range(tolerance) of voltage and frequency of grid supply in india?

10 Answers   BARC,

---