what is differnt between metering CTs an protection CTs
Answers were Sorted based on User's Feedback
Answer / khursheed
Metering CTs have saturation restrictions to protect the
measuring instruments, but Protection CTs has higher limits
of saturation.
Is This Answer Correct ? | 25 Yes | 1 No |
Answer / k.prabhakar reddy
Metering CT:Wil be used for the purpose of measuring of
current only.
Protection CT: Wil be used for the purpose of protection of
the power devices
Is This Answer Correct ? | 15 Yes | 7 No |
Metering cts used only in measuring secondary currents(in
view of primary current),no knee point voltage ,winding
resistance is low.
Protection cts r used incase of any faults in d system,knee
point voltage is there,winding resis. is high.
Is This Answer Correct ? | 6 Yes | 3 No |
Answer / ullas
metering ct= this belongs to accuracy class .1, 1 etc.
and used to measure current, can be indicated in ammeter
and also can be given to an energy meter to measure kwh.
the cts belong to this class is not used for back up
protection or main protection .
protection cts== this cts can be divided in to backup
protection cts and main protection cts.
backup protection cta belongs to calss 5p10, 10p10, 15p10
etc. these ct are used to give over current and earth fault
protection.
special protection cts= this is used for differetial, ref
protections.class ps
oe main thing you should understand is that these are
coming as different cores of a single ct.
that means a ct with 3 or 4 cores.
each core is meant for different purposes like metering,
backup, special (main) protecton.
i think u ca understand better now.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / vijayakumar
Metering CT:Wil be used for the purpose of measuring of
current only.
Protection CT: Wil be used for the purpose of protection of
the power devices
Is This Answer Correct ? | 5 Yes | 4 No |
Answer / lalit barsker
IN METERING C.T. SECONDARY(LOW VOLTAGE SIDE) OF THE CT IS
CONNECTED TO THE METER I.E. AMMETER WATTMETER e.t.c.and in
protection C.T. SECONDARY(LOW VOLTAGE SIDE) OF THAT CT IS
CONNECTED TO RELAY FOR PROTECTION PURPOSE WHEN FAULT OCCURS
RELAY SENSE IT AND C.BREAKER TRIPS.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / krishnan
The class between metering and protection will be diffrent.
Is This Answer Correct ? | 4 Yes | 5 No |
Answer / cnsubudhi
metering ct exclussively used to measure electrical
parameters.Where as protection ct used to protect the
devices.
Is This Answer Correct ? | 1 Yes | 3 No |
Answer / karthikeyan
Metering CT: Wil be used for the purpose of measuring of V,
A, PF, Frequency etc.
Protection CT: Wil be used for the purpose of protection of
the power devices
Is This Answer Correct ? | 9 Yes | 12 No |
Answer / venkatesh
ct measuring the currentand protection ct for
busbar,overcurrent.
Is This Answer Correct ? | 0 Yes | 3 No |
What is the difference between Floot charge and Trickle Charge.
how to calculate short ckt current of trafo. ex.3-ph 3MVA trfo. 11/440, impdence voltage=7.25%
What's ND relay & it's functions?
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
Earth bits close or open. Which is correct
what happens in the primary side of the transformer if transformer is short circuited first and increasing the resistance of the short circuit gradually?
We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?
what is the problem occer in motor
what is the function of rccb how it diffrentiate between elcb
Dear sir, please tell me how many day use CTPT transformer
1 Answers Daya Engineering Works,
why HT motors are earthed only at equipment side & for it's single core cable with aluminium wire armoure using?
1 Answers Legrand, NLC Neyveli Lignite Corporation Limited,
any calculation method for decide cable size for current?