Answer / e venkat reddy

CIRCUIT BREAKER WORKS ON ON LOAD WHERE AS ISOLATOR WORKS ON
OFF LOAD CONDITIONS. ISOLATOR WILL OPERATE AFTER THE
CIRCUIT BREAKER ACTION TAKING PLACE.

Answer / r.kalyana sundaram

IN CIRCUIT BREAKER THERE WILL BE TRIPPING MACHANISM.IN
ISOLATOR THERE WILL BE NO TRIPPING MECHANISM.ONLY ON,OFF
SWITCH FUCTION.

Answer / syed qamar abbas

Circuit Breaker is a automatic device while isolator
operates manually

Answer / mick

A circuit breaker is designed to automtically open the live
line if the current exceeds its rating - i.e. a 5A circuit
breaker will open and disconnect the live line should the
current exceed 5A. It primary purpose is to automtically
disconnect the live under a fault.

A isolator is usaully a hand operated device that will
disconnect the live and the neutral. Manly used to allow
work to be carried out on equipment (a motor for example).
Normally an isolator will have some way of being 'locked
off' so that the equipment cannot be energised. It does not
have an automatic function.

Answer / rajesh ku sahu

# 2 CIRCUIT BREAKER WORKS ON ON LOAD WHERE AS ISOLATOR
WORKS ON
OFF LOAD CONDITIONS. ISOLATOR WILL OPERATE AFTER THE
CIRCUIT BREAKER ACTION TAKING PLACE.

Answer / kk_london

a circuit breaker will have closing and tripping mechanism
and it can be closed or tripped in remote and where as
isolator will have only fuses and needs to be operated
locally

Answer / naresh kumar dhal

we can operate the isolator only manually.
But we can operate the cb Automatically with the help of a
relay and manually also

Answer / suthan prabhu

Isolator is an off line usable device.That means we are
using it for maintenance purpose.But Circuit breaker is a
switching device to use in On line .

Answer / nikesh

Circuit breaker is switch which operate manually during no load condition and operate automatically during fault condition or Isolater is operate off load condition after operate circuit breaker.

Answer / chiranjit mondal

circuit breaker operates on load condition i.e it can break
inductive or capacitive current but isolator operates at no
current condition i.e itoperates when no current is flowing
through it.

15hp,380v,31amp,3-ph submersible motor run at 250v what is The temperature rise of submersible motor

1 Answers  

why rating of transformer is in KVA but of motor is in KW

4 Answers  

what is difference between earthingpits,earthing grid & earthing mess?

0 Answers   TATA,

what determins the amount of voltage produced by a voltaic cell?

1 Answers  

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

2 Answers   UPCL,

How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.

0 Answers  

Why there is no provision of breaker in between primary of UAT and generator

1 Answers  

can we use the 110 v primary Tr 240 v secondary step up Transformer as reverse 240 pri 110 sec

3 Answers   Hyundai,

What is the tube exial fan?

0 Answers  

What is use of starter and choke in tube light

0 Answers  

What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?

0 Answers  

what are the protection relays for trasformer

3 Answers