1.Difference between vcb and Acb and partes.
2.Difference between STS and ATS.

Answers were Sorted based on User's Feedback



1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS...

Answer / thowsif_emerson

1.VCB= vacuum circuit breaker normally used in HV
applications.
ACB = Air circuit breaker, normally used in LV
applications.

2.There are two main technologies used for these devices
with different characteristics in terms of
switching quality and cost each having its merits and
deficiencies: Static Transfer Switches
(STS) and Automatic Transfer Switches (ATS).

A>STS is based on static electronic components (SCR)
therefore allowing for a fast and precise
control of the switching between one line and the other.
This solution permits to obtain a perfect
Break Before Make (BBM) behaviour by never permitting a
source overlap. Moreover, it is also
capable of very fast switching between the two sources with
a max delay of less than 5 msec
(typically 4 msec).

B>ATS is based on electromechanical components where the
BBM switching is actually made by
controlling the relays on each source line. This kind of
technology can still make a perfect Break
Before Make change of supply sources both in synchronous
and asynchronous conditions but it
is certainly slower than the static solution.

Is This Answer Correct ?    10 Yes 0 No

1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS...

Answer / dips

VCB means vacuum CB
ACB means air CB

Is This Answer Correct ?    5 Yes 2 No

Post New Answer

More Electrical Engineering Interview Questions

i want to model paper for section engg.

0 Answers   Infosys, RRB,


what is entropy?

3 Answers   NTPC,


How do you determine the size of transformer radiators in a transformer?

0 Answers  


PLEASE EXPLANE WHAT IS " MOSFET AC CONVERTER"? WHERE AND HOW IT IS USED?

2 Answers  


WHAT IS THE DG OIL SPECIFICATIONS AND WHAT IS THE DIFFERENCE BETWEEN THE DG OIL AND TRANSFORMER OIL

4 Answers  






why motors are rated in HP?

3 Answers   HCL, ncpl,


What is the difference between hot and cold loop testing?

0 Answers  


How we select the cable rating

1 Answers   BTM, Videocon,


what is power factor ? why is it so important?

2 Answers   Telco,


Dsitrubution transformer minimum IR value

1 Answers  


In three phase energymeter the spindle rotating backward why?

1 Answers  


why voltage drop will occurs in 3 phase line?

12 Answers   ABB, Servo,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)