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?
Answer Posted / 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 |
Post New Answer View All Answers
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
can any one know is sbi interview based on merit or based on roll number
What is the difference between rulling span and wind span of of an Over Head Transmission Line?
what work will do diffrential realay DG set
some basic standard questions on transformer.
What will be result if we connect LT votage to the terminal of HT motor?
can we synchronize star system generators with delta system transmission line ? and how ?
If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables
how to calculate maximum current
ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant
What is the tube exial fan?
Define damping ratio.
How will be the single line diagram of series trip HT breaker? how it works?
what you have to see after one week or month from the day of installation of transformer ?
why the projects getting loss?