What is the difference between a Vacuum Circuit Breaker and
a Load Break Switch?

Answer Posted / ahamad kutty k.v.

Vacuum breakers are circuit breakers with vaccum as medium
of arc extingushing in place of oil or sf6 and usually
used for isolating a circuit
(specific equipment or portions of the
distribution system) and they can operate under faulty
condition also when detected by a protection relay. After
clearing the fault this can directly switched on to the
load without any change of blown out fuse which is the case
of a load breake switch.Load break switches are designed
to open
under full load only.in case of a fault the fuse of the
load breake switch will blew out and it should be replaced
before charging the circuit to the load.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

1286


What is A check, B check, C Check & D check for a diesel Generat

1582


how does the thyistor work in dc drive?

1556


What is the formula of frequency ?

968


in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

1641






which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor

1490


what is method for testing CT

1622


what is the function of bearing in dc mchine" and where it is placed

2079


What will be the diameter of pipe between conservation tank and transformer

1462


how technical is calculated in 11kv line and lt line

1468


defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

3227


On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

3614


Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

1811


Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1269


what is the chemical name and formula of refrigarent R-134a.

1784