LOAD CHART
The following Data should be used for calculating the total load in VA, while using the Inverter.
LOAD STANDARD RANGE GENERAL RANGE
1. Tube light new / good choke 75 VA 60 VA ~ 75 VA
2. Tube light with old / inferior choke 105 VA 75 VA ~ 105 VA
3. Electric bulb As per actual Wattage (eg. 60 W Bulb as 60 VA)
4. Fan below 48” size 100 VA 75 VA ~ 100 VA
5. Fan above 48” size 125 VA 100 VA ~ 125 VA
6. Television 14” / 21” 150 VA 125 VA ~ 150 VA
7. C. F. L. 9 W / 11 W 40VA 25 VA ~ 40 VA
Generally on inverter mode, a noise may be observed from tube light / fan, which is due to the following reasons:-
1. Because of inferior quality choke. 2. Weak / Leaky capacitor in fan.
These noises may not be present while on mains mode, but shall be on the inverter mode because of TPZi waveform, which
allows higher backup as compared to Sine Wave (Mains Waveform) in inverter mode with noise as nuisance.
This can be reduced by Loading the inverter output with a R-C Circuit:-
For 600/800VA : Use a Resistance of 22 Ohms / 150W in series with a Polyester Capacitor of 2.5MFD / 440V.
For 1400VA : Use a Resistance of 22 Ohms / 150W in series with a Polyester Capacitor of 4MFD / 440V.
NOTE:- Loading of the inverter with a R-C Circuit reduces the backup time.
NOISE ON INVERTER MODE
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