what is the use of vcb & isolator in substation?

Answer Posted / mahesh m

The vaccum c.b are used to dissconnect the ckt when fault
accurse in the ckt,aswell as the vcb is used to break the
ckt in abnormall condition,in tn the name indicates the
isolators are used to isolates the ckt and the supply can
be intterupted by the mains.

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

915


Form S and "c" license application both are same? @ tneb portal

1258


What is the earth treantment procedure?

1602


how can we select the appropriate VCB ?

1818


A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

507






What is difference between YNyn0 and YNyn ??

1801


How to decide and select the different earthing wire size for the different types of earthing

1807


can someone explain that how the speed of the protection system affects the fault level calculation?

1467


How many sprinklers should be in one pipe line?

1421


do we use links in a dc circuit?if so what s its use in it?

1492


he compression ratio for a petrol engine generally lies between

698


what is solkor relay and which condition it will act?

2852


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1557


Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

1647


magnetizer priciple

1571