what are the difference between protection class CT and
Class PS CT
Answer Posted / shivaji mangalagiri
all the protection cts like over current
relay and earth fault relay of transformer,Alternator and
HT motors are having core 1 and core 2 options. CLASS PS
type is used only for differential protection purpose of
transformer,Alternator and
HT motors only. and this type of cts are available only in
PAIR SCHEME (PS) AND their turns ratios,
impedances, VA burdens, knee point etc all these critical
parameters are exactly matched with each other.
Is This Answer Correct ? | 18 Yes | 4 No |
Post New Answer View All Answers
If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!
What is the control action?
What is the difference between circuit breaker and isolator
If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables
What is resistance of 50meters, 16sq.mm, single core copper cable?
In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.
Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
how can you size an automatic voltage regulator?
we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?
How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?
in what type of applications v can use q meter?
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
What do you mean by reach and reach the point of the relay?
What is the voltage gain or transfer function of amplifier?