what do you mean by mf of energy meter & its formula?
Answer Posted / virendra
MF means the Multiplying factor.
Its nothing but the CT ration . as a big amount of the
current to be measured So direct Metering is not possible
hence CT operated meter is used
Formula :- if the CT ratio is 60/5 then metered reading
should be multiply by 12 which give the exact Power usage
| Is This Answer Correct ? | 28 Yes | 8 No |
Post New Answer View All Answers
Why power factor should not be in leading (capacitive) mode of any load.
what is the affect of earth's magnetic field on the frequency used in aircraft???
What is ramp signal?
The moisture in air will condense at
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
What is the universal motor?
In parallel operation time both NGR’s close or not close if both close what will happen
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.
What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer