Advance Power AP3000 Manuel d'utilisation et d'entretien - Page 5

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BASIC INFORMATION

INTENDED USES

These engine generator sets have been designed primarily

for portable use. 120 and/or 240 volt AC receptacles are

provided in the 'control panel' to plug in your loads (lights,

portable tools, and small appliances). Units larger than

4000 watts are dual wound generators, therefore the 120

Volt loads must be equally split with 1/2 of the rated

capacity available on each of the two 120 Volt circuits.

See unit capabilities for further explanation.

These portable units require large quantities of fresh air for

cooling of both the engine and the generator. Fresh air is

drawn from both the engine end and the generator end

and is exhausted at the center of the unit. For safety, long

life and adequate performance, these units should never

be run in small compartments without positive fresh air

flow.

RESTRICTED USES

DO NOT remove from the cradle assembly. Removal of the

generator from the cradle assembly may cause

excessive vibration and damage to the engine generator

set.

DO NOT install and operate these portable generators in a

small compartment., i.e. generator compartment of

vehicles, motor homes or travel trailers. These

compartments will not allow enough free flow fresh air to

reach the engine generator set for cooling and will cause

the unit to overheat damaging both the engine and the

generator. Small compartments will also develop hot

spots where there is very little air flow and may cause a

fire.

DO NOT attempt to operate at 50 cycles. These units are

designed and governed to operate at 60 Cycles only.

UNIT CAPABILITIES

Generator Connections - The diagram below represents a

typical 4000 watt generator. Receptacles A and B are the

two 120 Volt duplex receptacles. Up to 2000 watts at 120

volts (16.6 Amps) can be taken from the generator at

each of the receptacles. This generator produces 120

and 240 volt, 60 Hz (Hertz), AC (Alternating Current).

60708-029

NOTE: The AP3000 generator is a 120 volt only

generator and contains only the "A" circuit shown in this

schematic.

CAUTION: EQUIPMENT DAMAGE

CAUTION MUST BE EXERCISED TO PREVENT

OVERLOADING EITHER OF THE GENERATOR 120 VOLT

OUTPUT CIRCUITS (A OR B).

Check the appliance or tool nameplates for the current and

voltage to insure compatibility. Remember that power

taken from receptacle C reduces the power available at

both A and B. Any remaining 120 volt loads should be

equally divided between A and B. Failure to split the load

will cause permanent damage to the stator. Although

circuit breakers are provided, damage due to overloading

constitutes abuse and will not be warranted. Refer to the

generator nameplate for your unit's capabilities.

Starting Electric Motors - Electric motors require much more

current (amps) to start them than to run them. Some

motors, particularly low cost split-phase motors, are very

hard to start and require 5 to 7 times as much current to

start them as to run them. Capacitor motors are easier to

start and usually require 2 to 4 times as much current to

start them as to run them. Repulsion Induction motors are

the easiest to start and usually require 1 1/2 to 2 1/2 times

as much to start them as to run them.

Most fractional horsepower motors take about the same

amount of current to run them whether they are of

Repulsion-Induction (RI), Capacitor (Cap), or Split-Phase

(SP) type. The chart below shows the approximate current

required to start and run various types and sizes of 120 volt

60 cycle electric motors under average load conditions.

RUNNING

HP AMPS

CAP

_____

__________

1/6

3.2

16 TO 22

1/4

4.5

22 TO 32

1/3

5.2

26 TO 35

1/2

7.2

NOT MADE

13.0 NOT MADE

The figures given above are for an average load such as a

blower or fan. If the electric motor is connected to a hard

starting load such as an air compressor, it will require

more starting current. If it is connected to a light load, or no

load such as a power saw, it will require less starting

current. The exact requirement will also vary with the brand

or design of the motor.

Self-excited generators respond to severe overloading

differently than the power line. When overloaded, the

engine is not able to supply enough power to bring the

electric motor up to operating speed. The generator

responds with high initial starting current, but the engine

speed drops sharply. The overload may stall the engine. If

allowed to operate at very low speeds, the electric motor

starting winding will burn out in a short time. The generator

winding might also be damaged.

Page 3

STARTING AMPS

_______

____________________________________

6 TO 13

9 TO 18

10 TO 21

14 TO 29

11 TO 18

26 TO 52

20 TO 33

ADVANCE POWER SERIES

5 TO 8

7 TO 12

8 TO 17