In CT's they mentioned 400/5 or 1250/5, 1000/1 here
400,1250,1000 is Breaker Capacity what is the /5 Explain me
briefly
Answer Posted / cnu
CT is used for measuring high currents. even in a circuit
breaker it is used to measure the current and to send the
signal to the relay in case of any abnormality.
the 400/5 on the CT denotes the transformer ratio. that is
when 400Amps flows through the primary of the CT the
secondary of the CT is induced with 5Amps, which is easy
for measurement.
so the fraction on the CT denotes its ration which defines
the value of current flowing in the secondary side.
Is This Answer Correct ? | 17 Yes | 2 No |
Post New Answer View All Answers
How one can check the MAIN of a house wiring ?
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?
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
what is difference between elr and R eartl realy.
How much load can be taken for chiller from 1500 kva transformer
How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?
When we use 3 terminal resistor?
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?
how to carried out DAR test in 11 KV Alternator ?
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
WTA used cb?
How to maintain ac plant?
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028