Subaru Robin Power Products RGX3510 manual Range Of Applications

7.RANGE OF APPLICATIONS

Generally, the power ratingof an electrical appliance indicates the amountof work that can be done by it. The electric power required for operating an electrical appliance notis always equal to the output wattage of the appliance. The electrical appliances generally have a label showing their rated voltage, frequency, and power consumption (input wattage). The power consumption of an electrical appliance is the power necessary for using it. When using a generator for operating an electrical appliance,the power factor and starting wattage must be taken into consideration.

In order to determine the right size generator, it is necessary to add the total wattage of all appliances to be connected to the unit.

Refer to the followings to calculate the power consumptionof each appliance or equipmentby its type.

(1)Incandescent lamp, heater,etc. with a power factor of 1.O

Total power consumption must be equalto or less than therated output of the generator. Example: A rated 3OOOW generator can turn thirty lOOW incandescent lamps on.

(2)Fluorescent lamps, motor driven tools, light electrical appliances, etc. with a smallerpower factor

Select a generator with a rated output equivalent to 1.2 to 2 times of the power consumption of the load.

Gemrally the starting wattage of motor driven tools and light electrical appliances are 1.2 to 3 times lager than their running wattage.

Example: A rated 250W electric drill requires a 400W generator to start it.

NOTEI: If a power factor correction capacitor is not applied to the fluorescent lamp, themore power shall berequired to drive the lamps.

NOTE2: Nominal wattage of the fluorscent lamp generally indicates the output wattage of the

lamp. ~

Therefore,.if the fluorescent lamp has no special indication as to the power consumption, efficiency should be taken into account as explained in Item (5) on the following page.

(3)Mercury lamps with a smaller power factor

Loads for mercury lamps require 2to 3 times the indicated wattage during start-up. Example: A 4 O O W mercury lamp requires 800W to 1200W power source to be turned on.

A rated 30001%'generator can power two or three40014' mercury lamps.

(4)Initially loaded motor drivenappliancessuch as waterpumps,compressors,etc.

These appliances require large starting wattage which is3 to 5 times of running wattage. Example: A rated 9OOW compressor requires a 4500W generator to drive it.

NOTEI: Motor-driven appliances require the aforementioned generator output only at the starting. Once their motors are started, the appliances consume about 1.2 to 2 times their rated power consumption so that the excess power generated by the generator can be used for other electrical appliances.

NOTE2: Motor-driven appliances mentioned inItems (3) and (4) vary in their required motor starting power depending on the kind of motor and start-up load. If it is difficult to determine the optimum generator capacity, select a generator with a larger capacity.

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