Answer / siemens

ELCB is an Earth Leakage Circuit Breaker which is the same as an RCCB - a Residual Current Circuit Breaker, also sometimes referred to as an RCD - Residual Current Device.

You also get RCBOs - Residual Current circuit Breaker with Overcurrent protection, which combine the RCCB and MCB functions into one package.

If your RCCB/ELCB has tripped, there are but two possibilities : 1) It tripped on an earth leakage current, or more precisely on an imbalance between the currents in phase and neutral conductors, or 2) The device is faulty.

Answer / abdul

RCCB means Residual Current circuit Breaker.
Means the residual ce=urrent flowing in the circuits gets
activated & thte potential difference causes it to trip

Answer / arjunbel

rccb elcb
reverse current circuit earth leakage circuit breaker
breaker

it will trip a circuit it will trip source when body
whenever reverse current of equipment receives current
flows towards source I.e. due to leakage it can be preset
during short circuit to a predefined value ranging
15-100 ma

Zone of protection and tripping scheme of arc protection relay.

0 Answers   KSEB, L&T, Siemens,

---

Welding machine

1 Answers   CEL,

---

Why generating voltage is limited up to 22kV?

4 Answers  

---

Define settling time.

0 Answers  

---

how test transfomer(3 phase75kva) by megger

0 Answers   HPL,

---

What are the basic components of the feedback control system?

0 Answers  

---

Name different types of circuit breakers and their voltage ratings?

11 Answers   NTPC,

---

what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

---

What is depreciation factor?

0 Answers   HCC,

---

WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM

4 Answers  

---

What is primary and backup protection?

0 Answers  

---

what is wave traps and why it is been used in switchyards?

1 Answers   NHPC,

---