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.

If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units

1 Answers   Brigade,

---

what is derating factor in Cable ? how we minimise this?

18 Answers   Bhel, College School Exams Tests,

---

what is STUB protection in tranmission system and switch yard area?

9 Answers   KSEB, Power Grid,

---

what will happen to give a dc supply in transformers?

3 Answers  

---

Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

0 Answers  

---

What accessories required to give the motor with given circuits and do you know the ratings of those accessories?

4 Answers   Hyundai, TCS,

---

if acapacitor connected to power supply will it cosume power& will it going to get recorded in energy meter

2 Answers  

---

How to convert 2 phase to 3 phase electricpower in induction moter?

0 Answers   HCL,

---

what is the difference between earthing and grounding?

6 Answers   Bhel, Wipro,

---

i want to model paper for section engg.

0 Answers   Infosys, RRB,

---

WHY WE USE 4-20mA

5 Answers   Coca Cola,

---

what is at/cm ?

3 Answers  

---