Wacker Neuson G 2.1A User Manual

5A-1
50 HZ PORTABLE GENERATORS G3.3A/G4.6A/GS4.6A/GS5.7A 5A
5.1 Theory of Operation – Brush Generators
These models are designed to operate with close
regulation when supplying single phase loads. The
principle of operation is schematically represented in
Figure 5-1, and a cross-sectional view in Figure 5-2. The
auxiliary winding (a) provides excitation power through
a choke (b) and bridge rectifier (c) into the rotor winding
(d) via slip rings and brushes. The AVR (e) diverts
excess excitation to maintain the stator winding (f)
output voltage within close limits. The main stator winding
is designed for series/parallel connection to give a dual
voltage output.
Figure 5-1. Principle of Operation Schematic
1022SD73
Bridge Rectifier
c
Auxiliary
Winding
a
b
Choke
d
Brush and Slip
Ring Assembly
Rotor
Winding
f
Main
Stator
Winding
f
Main
Stator
Winding
e
Automatic
Voltage
Regulator
Basic Generator Theory
These generator models use a brush/slip ring design to
generate and regulate power and consist of a rotor,
stator, diode bridge, and an auxiliary winding. They also
incorporate a choke that is connected in series with the
auxiliary winding. The choke’s purpose is to bring the
current in the auxiliary winding “in phase” with the main
windings. The current from the auxiliary winding is carried
to the rotor via the brushes and slip rings.
The generators also contain an Automatic Voltage
Regulator (AVR) that maintains a specific voltage output
regardless of load. The voltage regulator accomplishes
this by regulating DC current from the auxiliary winding.
When the load on the generator increases, the voltage
regulator allows additional DC current into the main rotor.
The additional DC current allows the generator to increase
output and maintain the desired output voltage.

Wacker Neuson G 2.1A Specifications

General

Brand	Wacker Neuson
Model	G 2.1A
Category	Portable Generator
Language	English