Answer / rambabu

above is correct but the ct is current transformer for
measuring current and pt is measuring voltage in
sub-stations.these are using in HT sub stations only 1100v
and above.

Answer / kbonn

For example u have 100MVA transformer 66KV line
your CT ration 100,000,000/1.7320x66,000=874.77
so you can used CT ration 1000/1A

Answer / chandu

Current Transformers (CT’s) and Potential Transformers
(PT’s) are suitable located for supply to metering and
indicating instruments and relay circuits. CT’s are
connected at the terminals of each circuit breaker and PT’s
are connected right on the point where the line is terminated.

i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

0 Answers  

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why motor starting current is High ?

11 Answers   Bhel, Jindal,

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what are the effects on an power plant and consumers if the power factor is increased or decreased?

2 Answers  

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How to check op amp using multimeter

1 Answers  

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what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

0 Answers  

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Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

1 Answers  

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why white color LED light is not possible?

1 Answers  

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1 hp single phase motor is more likely to get hot thsn inone hp 3 phase motor its true or false? If true why?

1 Answers   TVS,

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Is electro plating what type of load whether resistive, inductive or capacitive loads

0 Answers   Apollo,

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why aggregate is placed all around substation ground.

9 Answers  

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can transformer of different kvas be paralled

2 Answers  

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What is the acessaries distribution transformer ?

11 Answers   Bhel,

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