What are the differents between Breaker & Contactor?
Answer Posted / iamdon
Basic difference between circuit breaker and contractor is
that
A circuit breaker can make,break and carry current in all
conditions i.e normal,overload and short circuit where as a
contractor can make,break and carry only in normal and
overloaded condition not in short circuit condition.
Also, Contractor are always backup by HRC fuse where as
there is no need of any backup in circuit breaker.
The frequency of operation of contractor is more than the
Circuit breaker
| Is This Answer Correct ? | 77 Yes | 12 No |
Post New Answer View All Answers
What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?
what is upper impedance and lower impedance of a distance relay
what is the difference b/w absolute encoder and incremental encoder?
How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?
54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?
what is transformor oil gread
What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?
Differnce between negative Pahse SequenceFunction and unbalance Function?
sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.
how to revers the direction of single phase motor
sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence
What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.
please send me privious exam's queation papers of section engineer(electrical).
please send me latest & previous years question papers for IOCL Technical level questions
what is (+) and (-) in generator field detector stand for?