Specifications

PAGE 16 —DA7000 SERIES A.C. GENERATORS— OPERATION AND PARTS MANUAL — REV. #4 (08/07/09)
DA7000 SERIES GENERATORS — LOAD APPLICATION
Single Phase Load — 60 Hz
Always be sure to check the nameplate on the generators
and equipment to insure the wattage, amperage and
frequency requirements are satisfactorily supplied by the
generators for operating the equipment.
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require 130—
150% more wattage than the rating on the nameplate, as
the wattage is influenced by the efficiency, power factor and
starting system of the equipment.
If wattage is not given on the equipment's
name plate, approximate wattage may be
determined by multiplying nameplate
voltage by the nameplate amperage.
WATTS = VOLTAGE x AMPERAGE
The power factor of this generators is 1.0 See Table 3 below
when connecting loads.
NOTE
To determine the running wattage for your load, multiply
the running wattage as indicated by steps 1, 2, and 3 below:
1. INCANDESCENT LOADS
Lights, heaters and similar appliances.
Total the running wattage and multiply by 1.
Example:
29 light bulbs @ 100W each = 2.9 KW
use a 3 KW generator.
2. SMALL MOTORS
Drills and other small power tools.
Total the running wattage and multiply by 2.
Example:
A 1 inch drill runs at 1 KW
use a 2 KW generator.
3. LARGE MOTORS
Submersible pumps, table saws etc.
Total the running wattage and multiply by 3.
Example:
A conveyor belt runs at 8 KW
use a 24 KW generator.
Extension Cables
When electric power is to be provided to various tools or loads
at some distance from the generator, extension cords are
normally used. Cables should be sized to allow for distance
in length and amperage so that the voltage drop between
the generators and point of use (load) is held to a minimum .
Use the cable selection chart (Table 4) as a guide for selecting
proper cable size.
The idle control device is operated at a
minimum load capacity of 100W. If the
load capacity is less than 100W, place
the idle control switch in the OFF position.
NOTE
When using a combination of dual
receptacles, total load should not
exceed the rated capacity of the
generator.
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When connecting power tools or
equipment pay close attention to the
required starting current capacity.
NOTE
Before connecting this generator to any building’s electrical
system, a licensed electrician must install an isolation
(transfer) switch . Serious damage to the building’s
electrical system may occur without this transfer switch.
DANGER - ELECTRICAL SYSTEM HAZARDS
CAUTION - EXTENSION CABLE SIZE
Motors and motor-driven equipment draw much greater
current for starting than during operation. Always use an
adequate size extension cable which can carry the
required load.