Answer / kaleem

current transformer is design to measure the output current of the generating transformer

potential transformer are design to measure the output voltage of the generating transformer

Answer / raji.g

current transformer :(CT)
it is an electrical device which is used to measure the
high current,
Potential Transformer(PT):
To measure the high voltage

Answer / ajith

ct is used to measure corresponding current and to provide protection against fault currents

pt is used only to measure the amount of voltage in a particular circuit

Answer / gurmurat

the main purpose behind using CT,pt is to prevent the circuits from overcurrent,undervoltages nd earth faults
they step up/down high values of currents and voltages under measurements into desired values which could be measured by available instruments.

Answer / k.prakashchandra

In case of HT and EHT,to get rid of high voltage.In case of
LT CT ,to reduce the size of the leads.

Answer / praveen kumar gupta

CT is a current instrment Transformer. It is used to
linearly step down the primary current as per the rated
current of controlling device attached with. It is used as
current sensor.

PT is a potential instrument transformer . It is used to
linearly step down the primary voltage as per the rated
voltage of controlling device attached with. It is used as
voltage sensor.

Answer / k.prakashchandra

To convert current and voltage to the desired values

Answer / k.prakashchandra

Another purpose of using CT & PT is to remove the presence
of high voltage

Any formula to calculate neutral current in 3 phase 4 wire system

1 Answers  

Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

0 Answers   FEWA, HMK,

we convert 66kv to 33 kv to 11kv to 440v. why can't we directly convert 33kv to 440 ?

9 Answers   EMC, Jakson, L&T,

what is the difference between series and shunt compensation using facts in a transmission line

8 Answers   College School Exams Tests, Genco,

What is A check, B check, C Check & D check for a diesel Generat

0 Answers   Jtekt Koyo Bearings,

What meant by XLPE cable

3 Answers  

What is the function of electron gun used in crt?

0 Answers  

what is interference

1 Answers   L&T,

What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

0 Answers   Greenko Group,

extremely urgent please, why a fuse is used before voltmeter but not with a ammeter connected to a CT(current transformer),thanks in anticipation.

4 Answers   NPCIL,

what will happen if neutal in AC ckt will get open

3 Answers  

how the works electronic energy meter?

0 Answers   Bhel,