what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system
- 2 Answers
- 4045 Views
- I also Faced
- E-Mail Answers
Answer Posted / abhishek pandey
The function of circuit breaker is to protect the power system equipments from the abnormal condition like high fault current flowing through the line due to line-to-line fault or line to ground fault. Circuit breaker breaks the circuit by isolating faulty part from the line and making the equipments safe.
During the normal working condition,the circuit breaker is in closed condition i.e; the fixed contacts and moving contacts present inside the circuit breaker are in contact with each other and allows normal current to flow through it.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
how you will decide the distance between the power transformer and its fencing
XYZ
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
why lightning arrestor are made in two stack of insulator but why not cvt
I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com
What types of high speed CMOS circuits have you designed?
can i able to get bhel previous exam question paper?
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
What will be result if we connect LT votage to the terminal of HT motor?
all the technical question with answers pleas send your email id ramar_eee@yahoo.com
hi can anyone pls tell me the eee interview core questions asked in l&t
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
