Answer Posted / atul pradhan
VCB means vaccum ckt breaker it can be used at any voltage
but due to its high cost it is generally used at HT side.
contacts of vcb operates in vaccum chamber.
It have spring charge moter,spring is used to operate
moving contacts.
It have closing & tripping coils & auxillery contact switch.
Can be operated manually also
Is This Answer Correct ? | 22 Yes | 6 No |
Post New Answer View All Answers
How I calculate the ELCB for circuit breakers?
What is meant by sag?
What is the difference between multimeter
What are high pass filter and low pass filter? and What are the flowmeter ?
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?
What types of high speed CMOS circuits have you designed?
I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.
difference between high and low impedance BUS BAR relay??
Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com
state the working principle of incondenscent tube?
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
What are the advantages of instrument transformer?
what is High resistance grounding and whatis the criteria for the selection of High resistance grounding
we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit
description about dry type transformers