Answer Posted / bala

if the current flowing through the circuit is more than the
set value it will trip the circuit. that is it compare the
flowing current to set value current.

what are the sample questions asking to the test cunducting for electrical superwising lisence test?

2185

---

Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

1989

---

difference bewteen reverse current and alternating current

2220

---

What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

3004

---

what happen if the parallel generator phase angle shift by 1 degree in manual mode

2044

---

Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.

2362

---

what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

5126

---

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1795

---

Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

1652

---

what is electrical machines

3666

---

what is breathing?

1812

---

Explain the advantages and disadvantages of hydropower plant?

1123

---

We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

2096

---

What is the name of the winding from which the supply is taken for load connections?

1071

---

What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

1656

---