Each generator set has a name
board, generally nailed on the casing of alternator or the empty open casing.
The information on the name board is used for identify the generator as well as
its operating characteristics, which includes type number, set serial number,
output voltage, phase and frequency, and designed power (output power is
expressed by KVA or KW). This information will be represented again in the
technical data sheet attached with this manual for reference. All of the serial
numbers are unique and won’t be repeated. These numbers are required when
buying accessories and after services.
Diesel engine
As the power resource of the
electric generating set, the diesel engine is specially designed and
manufactured for this electric generating set and of secure and reliable
performance. Diesel engine belongs to industrial 4 stroke compression ignition
type and complement with relevant accessories for the purpose of stable power
supply. The accessories include cylindrical air filter, and some diesel engine
types are equipped with turbocharger, mechanical or electronic governor
for controlling precisely revolving
speed of diesel engine.
Electric power system of the
engine
Electric power system of the
engine is divided into 12V and 24V negative earth DC voltage system according
to different types, including a start motor, charging generator and battery.
Some huge generators will install the battery on the ground near the generator.
Most electric generating sets will provide one or two lead-acid batteries. This
machine can also be equipped with battery of other categories under the
client’s requirement.
Cooling system
Cooling system of the engine
includes a radiator tank, an axial fan and a thermostat. The alternator is
equipped with independent fan for cooling its components. Pay attention to that
the airflow runs through the alternator first, and then through the engine to
reach the radiator tank finally.
Alternator
The output electricity is
produced by a carbon brushless, self-excited and automatic voltage regulation alternator with protective cover
and dropping water protective cover. The control cabinet is installed on its top.
Fuel tank and underframe
Both engine and alternator were
installed on a heavy steel underframe. The small power set can provide a fuel
tank which can run for 8 hours with full load according to the user’s
requirement. Users shall provide the fuel tank if he asks for no special demand.
Shock absorber
This electric generating set is
equipped with shock absorber which is specially designed for reducing vibration
transmitted to the infrastructure during the start. These shock absorbers were
installed between the engine/foot of alternator and underframe. However, the
engine/alternator of the huge generator is fixed on the underframe while the
shock absorber is provided to the client as an accessory for installation
between the underframe and infrastructure.
Silencer and exhaust system
The exhaust silencer is provided
with the set for installation. The silencer and exhaust system can reduce noise
and discharge the waste gas to outdoors directly.
Control system
(Identification)
There are many types of control
system. There’s one control system in each set for the purpose of controlling
operating and output, and preventing the set from damage due to incorrect
operation.
Air-break switch for power
output
A power switch appropriate for
relevant set type and electricity output is installed in the independent switch
box for the protection of alternator. Under some circumstances, switch may be
installed together with automatic switching system or control panel.
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