why exterrnal C.T. protection is used even though ACB& VCB
is having inbuild C.T. protection?
Answer Posted / k.prakashchandra
In-built protection is for currents exceeding the rated
current of the breaker,which is usually higher than that of
your requirement.Further, you can not alter this unless you
replace the cts.
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
How to calculate the phase to phase clearness of HT /// LT bus bar?????
How many types of instrument cables are there?
what is the illumination level required for child play area?
in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?
What is pole of the system?
What are the three types of compensators?
What are the major reasons for balancing hydro-thermal mix?
what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?
What is power relay?
HOW TO TEST A LIGHTENING ARREST ER ?
What is the equivalent circuit of a transformer and its vector diagram?
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
how you will decide the distance between the power transformer and its fencing
whatis the commertial spec. of distribution boards ?