(6) Alternator
(7) Control System
PLC-8610 is a microprocessor based control unit
contain-ing all necessary functions for protection of
the genset and the breaker control. Furthermore, it
contains all necessary three-phase measuring
circuits and presents all values and alarms on the
LCD
display.
The module has the function of load
sharing which enables the module to share the ac-
tive load (kW) equally when operating in parallel
with other gensets. The load sharing is performed
so each genset takes a portion of the load that is
calculated in percent ac-cording to the nominal
power.
7420
2.3 Function of Major Components
Modern generator set is
a mini power station
which
is
driven by the diesel engine. Generally speak-
ing, it contains the diesel engine, alternator and
control system. The engine drives the alternator
to produce output electrical power while the con-
trol system controls the operation and output of
the genset and protects the machine from possible
malfunctions. Besides, the genset also includes ac-
cessories such as the control panel, switch cabinet,
radiator, fuel tank, battery for startup and control,
protective device, mufer and base frame.
(1) Diesel Engine
The diesel engine is equipped with
exhaust aftertreatment system (SCR, DOC).
The emissions reach Tier 4 Final class. We
choose engine for its superior performance and
reliability and the fact that it has been specifically
designed for powering the generator set.
(2) Cooling System
The engine cooling system is either air cooled or
water cooled. The air cooled system consists of
high capacity fan to pull cool air across engine to
cool it. The water cooling system is comprised of
radiator, pusher fan and a thermostat. The alterna-
tor cooling system is air cooled which consists of a
fan to pull cool air across alternator to cool it.
(3) Engine Electrical System
The engine electrical system is 12 (or 24) volt DC
electricity whose negative pole is earthed. It con-
sists of the start motor, battery and battery charger.
The positive pole of battery connects to start motor
and the negative one connects to battery switch.
(4) Fuel Tank & Base Frame
The engine and alternator are coupled together and
mounted on a heavy duty steel base frame. This
base frame includes a fuel tank with a capacity of
approximately 8 hours (or 24 hours) operation at
full load.
(5) Vibration Isolator
The generator set is fitted with vibration isolators
which are designed to reduce engine vibration be-
ing transmitted to the foundation on which the gen-
erator set is mounted. These vibration isolators are
fitted between the engine/alternator feet and the
base frame.
14
CHAPTER2—PRODUCTOVERVIEW
To Next Page
Loading...
