Answer / shriram.....

VCB means vacuum circuit breaker it used in high voltage
(HV) lines
It has one mechanism in this mechanism spring is there it
is connected with small electric motor for charging the
spring but we can do manually charge also by this spring
tension circuit closing or circuit open can be done. The
circuit closing can be done by (CC closing coil) also.
In VCB CT are used for measuring, controlling & protection
purpose.

ACB means air circuit breaker it is used in low voltage
(LV) lines
It has also one mechanism it also work same.
ACB has (UV Under voltage) it used for tripping purpose
when power fail.
It has (CC Closing coil) for closing the circuit.
CT are used for measuring, controlling & protection purpose

Answer / n. gopala krishna

difference between vcb and acb. vcb is vacume circuit
breaker acb is air circuit breaker . in vcb switching
contacts fixed in vacume cylender. in acb switching
contacts arranging in openly in airbut other all mechanisim
is same both breakers having closing coil and tripping coil
and spring charge motor all are having but vcb breakers
using in high voltage side to reduse the arc at on off
time. but acb can use in low voltage side only

Answer / gokul singh

VCB means vacuum circuit breaker it used in high voltage
(HV) lines
It has one mechanism in this mechanism spring is there it
is connected with small electric motor for charging the
spring but we can do manually charge also by this spring
tension circuit closing or circuit open can be done. The
circuit closing can be done by (CC closing coil) also.
In VCB CT are used for measuring, controlling & protection
purpose.

ACB means air circuit breaker it is used in low voltage
(LV) lines
It has also one mechanism it also work same.
ACB has (UV Under voltage) it used for tripping purpose
when power fail.
It has (CC Closing coil) for closing the circuit.
CT are used for measuring, controlling & protection purpose

Answer / manjeet sharma

Differnce between acb and vcb

Answer / nagaraju. s

Vcb it's a closed circuit, it's a vacuum circuit breaker , it's used high voltage

Answer / anil kumar

Sorry all
 CT are use the low voltage line
 CT not use high voltage line We are use the pt in the high voltage
 

What is phase cross over frequency?

0 Answers  

what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.

0 Answers   Mepax, NEPCO,

if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

0 Answers   Power Plant,

Can a 150 kva 3 phase,440v/230v delta-wye connection stepdown transformer can be used in reverse as a step up tranformer ?

3 Answers   Meralco,

How is Grounding or Earthing achieved in Planes and Automobiles?

3 Answers   ABC,

what is the operating principle of contactor(power).along with disection?

3 Answers   NASA, Tech Mahindra,

what is the disaddvantages of high power factor

2 Answers  

in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?

0 Answers  

why d.c produces corrosion

0 Answers  

How to convert a two phase power into a three phase power in induction machine?

0 Answers  

we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

0 Answers   Syncom,