FYP 2 PROGRESS - WEEK 8

Title

- Calculation of energy meter's power

Purpose

- To get intended calculation consumed power from energy meter based on pulse from meter energy 3200 pulse for 1 kWh which using tnb calculation (for single phase's tariff)

Description

Calculation of Pulses and Units:

Before proceeding for the calculations, firstly  keep in mind the pulse rate of energy meter. There are two pulse rates of energy meter first is 1600 imp/kwh and second is 3200 imp/kwh. So here I am using 3200 imp/kwh pulse rate energy meter.

So first I need to calculate the Pulses for 100watt, means how many times Pulse LED will blink in a minute, for the load of 100 watts.

Pulse= (Pluse_rate*watt*time)/ (1000*3600)

So pulses for 100 watt bulb in 60 seconds, with energy meter of 3200 imp/kwh pulse rate can be calculated as below:

Pulses=3200*100*60/1000*3600

Pulses = ~5.33 pulse per minute

Now I need to calculate Power factor of a single pulse, means how much electricity will be consumed in one pulse:

PF= watt/(hour*Pulse)

PF=100/60*5.33

PF=0.3125 watt in a single pulse

Units= PF*Total pulse/1000

Total pulses in an hour is around 5.33*60=320

Units = 0.3125*320/100

Units = 1 per hour

If a 100 watt bulb is lighting for a day then it will consume

Units =1*0.3125

Units = 0.3125 Units

And suppose unit rate is at the region is rm0.0218 per unit then

So have to pay for 0.3125 Units for:

Price= 0.3125*0.0218 = RM0.0068125

This is simplified equation :-

watt = (i*0.3125);

unit = watt/100;

price = unit*0.0218