Answer / chreamz

A switchgear is an automated electric power switching
device or cubicle. It comprises of Current Transformer,
Voltage Transformer, Relays and Circuit Breaker. Together,
these instruments work hand-in-hand to initiate Closing,
Tripping of power hence protecting the connected load in
the system.

Should a fault occur within the system, a CT pick up the
exact type of fault, sending the associated signal to the
relay. The relay, dubbed the brain of the switchgear, send
an isolating signal to the CB to cut the power, hence
preventing catastropy to the connected load.

sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

14 Answers   CSPL,

---

If a Power Transformer Fails and the transformer manufacturer suggest that "Do all electrical test on the transformer?". What are the test to be conducted in this condition?

5 Answers  

---

One B.O.T Unit ??

10 Answers  

---

Define settling time.

0 Answers  

---

what is the difference b/w permitivity and permeability

1 Answers  

---

Please give the formula for converting from 1 tr refrigeration to kw.

2 Answers   Bugema University,

---

what is slip rings in an induction motor&what is it's work.

4 Answers  

---

If rotor works in clock wise what happens

0 Answers  

---

what is difference between Motorised MCCB & ordinary MCCB?

4 Answers   TCL,

---

Can anyone explain me the operating principle of the megger tester?( I just know that its diflection relates with the ratio of currents of control & diflecting coil. I need more information as breif as possible)

1 Answers   TCS,

---

In 3pin or 5pin socket why the earth pin is bigger

3 Answers  

---

What is induction motor

1 Answers   Indoco Remedies,

---