Multiquip GA6HZR User Manual download pdf (Page 9)

GA-6HZR A.C. GENERATOR — OPERATION AND PARTS MANUAL — REV. #3 (03/30/11) — PAGE 9

GA-6HZR — GENERAL INFORMATION

GA-6HZR FAMILIARIZATION

Generator

The Multiquip Model GA-6HZR generator has been designed

as a portable lightweight power source for 60 Hz (single-

phase) vibrators, lighting facilities, power tools, submersible

pumps and other industrial and construction machinery.

This generator is powered by a HONDA gasoline engine.

The alternator, a brushless revolving-field type, is

permanently aligned to the engine through rigid coupling.

The generator is mounted on rubber vibration isolators that

have a steel base backplate which is attached to the

protective steel pipe carrying frame. The protective carrying

frame is made of steel tubing and fully wraps around the

generator to protect against damage.

This portable generator is supplied with a electrical

control

box

. To reduce vibration caused by the engine, the control

box is also placed on rubber isolators.

Control Box

The control box has the following: (all outputs are 60 Hz,

single phase)



One 120V output receptacle.



One 240V output receptacle.



One 120V output receptacle (GFI protected).



One main 21 amp circuit breaker.



AC Voltmeter



Idle Control Switch



Full Power Switch



Operation Switch

Excitation System

All GA-series generators use a magnet attached to a flywheel

to produce AC voltage from a lamp coil beneath the flywheel.

As the magnet passes the coil it produces approximately

19-22 AC volts.

This voltage (19-22 VAC) is then sent to the control box that

contains three rectifying diodes:



Excitation (diode 1)



Battery (diode 2)



Slow Down (diode 3)

The AC voltage will pass through the excitation diode that

converts the voltage to DC power.

This DC power is then sent to the excitation windings housed

within the main windings commonly called the "stator".

This voltage is then transferred into the rotor through

induction. The rotor contains two diodes within it which rectify

the DC voltage and send it out through the main windings,

as AC voltage.

Engine

The four-cycle air-cooled HONDA gasoline engine is designed

to meet every performance requirement of this generator.

Reference Table 1, page 8 for engine specifications.

Figure 1 (page 10) shows the basic controls and indicators

for the GA-6HZR generator.

WARNING:

Before connecting this generator to

any building’s electrical system, a

licensed electrician must install an

isolation (transfer) switch.

Serious injury or death may result

without this transfer switch.

NOTE

In keeping with Multiquip's policy of

constantly improving its products, the

specifications quoted herein are subject

to change without prior notice.

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