how can calculate static 3phase 4wire CT & PT operated
energy meter constant when calibrating using refference
meter suppose we have 11kv/110v PT and 30/5A CT, the meter
constant is 160imp/kwh, where meter is showing MW energy?
give me solution which constant i feed in my refference
meter for calibration of energy meter?
Answers were Sorted based on User's Feedback
Answer / s.ramesh babu
PT Name Plate details is 11kv/110/root3.
But Your EM name plate details is 415/110/root3.
and CT ratio is 30/5A.
Step:-1
Calculate voltage is 11000/415=26.50
Step:-2
Calculate CT is 50/5=10A.
Step:-3
Now EM multification factor is 26.50*10=265.06.
Is This Answer Correct ? | 10 Yes | 5 No |
Answer / shah
This question set is prepared based on India's requirement.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / k.prakashchandra
Meter constant is 100x6 =600 if ct and pt ratios are not
incorporated (see name plate).160 imp/Kwh is not the meter
constant and it is like rev/Kwh in EM meters
Is This Answer Correct ? | 0 Yes | 3 No |
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