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
- 2 Answers
- 4748 Views
- I also Faced
- E-Mail Answers
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
why we use circuit breakers for switching instead of normal switching device?
how invertor convert the dc into ac give brif detail
how we will deside the high voltage value
PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
what is the difference between RMS & TRUE RMS VOLTAGE
How to calculate multiplication factor in kva example 500kva ans pls ?
How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.
What is core CT & it's function?
why we use Test Terminal Block in 11 KV and 33 KV electrical panels.
How does a battary stores charge in it? please explain in simple manner and in detail.thanks
What are the advantages and disadvantages of the dc motors?
