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3. GENERAL DESCRIPTION
Aksa Generating Set has been designed as a
complete package to provide superior
performance and reliability.
Figure 3.1 identifies the major components. This
figure is of a typical generating set. However,
every set will be slightly different due to the size
and configuration of the major components. This
section briefly describes the parts of the
generating set. Further information is provided
in later sections of thi manual.
Each generating set is provided with a Rating
Label (item 1) generally fixed to the base frame.
This label contains the information needed to
identify the generating set and its operating
characteristics. This information includes the
model number, serial number, output
characteristics such as voltage and frequency,
output rating in kVA and kW, product date and
weight.
The model and serial numbers uniquely identify
the generating set and are needed when ordering
spare parts or obtaining service or warranty
work for the set.
3.1. GENERATING SET DESCRIPTION
AND IDENTIFICATION
3.2. DIESEL ENGINE
3.3. ENGINE ELECTRICAL SYSTEM
The diesel engine powering the generating set
(Item 2) has been chosen for its reliability and
the fact that it has been specifically designed for
powering generating sets. The engine is of the
heavy duty industrial type with 4 stroke
compression ignition and is fitted with all
accessories to provide a reliable power supply.
These accessories include, among others, a
cartridge type dry air filter (item 3) and a
mechanical or an electronic engine speed
governor.
The engine, electrica system is 12 volts or 24
volts DC, negative ground/earth. This system
includes an electric engine starter, a battery
(item 4) and a battery charging alternator (item
5). For 12 volts electrical system one battery is
given. For 24 volt system two lead-acid batteries
are given. Other types of batteries may be fitted
if they were specified.
The engine cooling system is either air cooled
or water cooled. The air cooled system consists
of a high capacity fan to pull cool air across the
engine to cool it. The water cooled system is
comprised of a radiator (item 6), a pusher fan
and a thermostat. The alternator has its own
internal fan to cool the alternator components.
3.4. COOLING SYSTEM
3.5. ALTERNATOR
3.6. FUEL TANK AND BASEFRAME
3.8 SILENCER AND EXHAUST SYSTEM
3.9 CONTROL SYSTEM
The output electrical power is normally produced
by a screen protected and drip-proof, self-
exciting, self-regulating, brushless alternator
(item 7) fine tuned to the output of this generating
set. Mounted on top of the alternator is a sheet
steel terminal box (item 8)
The engine and alternator are coupled together
and mounted on a heavy duty steel bareframe
(item 9). This baseframe includes a fuel tank
(item 10) with a capacity of approximately 8
hours operation at full load.
3.7. VIBRATION ISOLATION
The generating set is fitted with vibration isolators
(item 11) which are designed to reduce engine
vibration being transmitted to the foundation
on which the generating set is mounted. These
isolators are fitted between the engine/alternator
feet and the baseframe.
An exhaust silencer is provided loose for
installation with the generating set. The silencer
and exhaust system reduce the noise emission
from the engine and can direct exhaust gases to
safe outlets.
One of several types of control systems and
panels (item 12) may be fitted to control the
operation and output of the set and to protect
the set from possible malfunctions. Section 7 of
this manual provides detailed information on
these systems and will aid in identification of the
control system fitted on the generating set.
