Interested to Buy Any Domain ? << Click Here >> for more details...
why vaccum circuit breakers are preferred over m.o.c.b
- 2 Answers
- 4807 Views
- I also Faced
- E-Mail Answers
Answer Posted / swetha
MOCB contains oil which expands and contracts during working which may create vacuum/gases inside the circuit breaker which may lead to an explosion sometimes if proper care is not taken.They also require a cooling system. Moreover, these circuit breakers require proper maintenance like changing the oil, taking proper predictive maintenance etc. But in the case of VCB's they don't require any maintenance, exhibit high arc quenching property, offer good amount of cooling. Hence, VCB's are mostly preferred.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????
Define gain margin?
1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??
2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation
wat is meant by PX class in ct?
What is a feedback in control system?
how we decide the require size is this for a known current at fuu load?
A well system is when , no. of bus bar is less or more. Tell me the concept of it.
What are hrc fuses and where it is used?
What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?
Why the earth to phase voltage is high 250 compare to other two phases
what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?
What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?
During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?
surge tank, hrc fuse, earthing transformer, firm power objective type
