1. Main structure of the biogas generator setBiogas generator sets
include biogas-fueled reciprocating internal combustion engines,
alternators, electrical parts, control devices, cooling systems,
lubrication systems, exhaust systems, fuel systems, and auxiliary
equipment. Except for the exhaust pipe and silencer of the exhaust
system, they are mounted on a steel chassis. The generator set
is a fixed permanent installed generator set. The steel
underframe is mounted to the concrete foundation.2. Main structure
of the biogas engineSeries 190 closed-loop electronic control gas
engine is developed by our company with the cooperation of American
WOODWARD. It is the engine that mixes air and fuel before
turbocharger. The power performance, fuel economy and reliability
of this gas engine reach world advanced level by adopting world
advanced outer mixing mode, electronic control technology and
lean-burnt strategy.The gas fuel of this engine series can be
natural gas, biogas, syngas, coal mine gas, and etc. In order to
meet the requirements of different customers, this gas engine can
be packaged into generating set or other power take-off.3.
AlternatorThe brushless constant-voltage synchronous alternators
are of the self-excited type with an electronic voltage regulator
integrated in the excitation system. They are used as main or
standby units in land based power installations and for ships'
electrical systems and can be driven by internal combustion engines
or gas, steam and water turbines and electric
motors.Structure: The alternator comprises the main machine
exciter and excitation system. The main machine is of revolving
magnetic field with cylindrical rotor and damper winding. The
exciter is revolving armature machine. The exciter power is
supplied to the rotor of the main machine via rotating
rectifiers.4. Genset control panelDedicated gas genset control
panel is in the shape of cabinet. With controller, various
indicating instruments, regulating buttons, protection indicators,
emergency shut-down button installing inside to monitor the working
status of the genset. Speed regulation is executed by the
electronic governor and the fine regulation can also can be done by
the buttons on the control panel. The voltage of the genset is
automatic through the buttons on the control panel.Working power
resource of the cabinet is DC24V (2 batteries). There is charger
inside the cabinet.5. Parameter table JDEC 500GF-N Biogas
Generator SetGenset model500GF-NEngine modelG12V190ZLTZ-2Alternator
modelIFC6 Series or equivalentControl panelGPL 500Rated
voltage400VPower factor0.8 (lagging)Rated frequency50/60HzRated
speed1000/1200rpmStarting method24V DC startVoltage regulating
methodAVR (Automatic voltage regulation)Speed governing
methodElectronic governorIgnition systemDigital ignition
systemCooling methodForced water cooling with multi-fans
radiatorCoupling methodFlexible couplingReference
dimension 5120x2040x2778mm (the drawing will be presented
after signing of contract)Reference weight14800kg Biogas
Engine DataModelG12V190ZLTZ-2Engine typeFour strokes, spark plug
ignited, water cooled and turbochargedCylinder arrangementV type,
60°Bore190mmStroke 210mmDisplacement71.45LRated
speed1000rpmIdle speed700rpmLube oil consumption≤0.8g/kwhExhaust
temperature (before turbo)≤650ºCJacket water outlet
temperature≤85ºCLube oil temperature in oil pan≤90ºCOil pressure in
main oil passage400-800kpaOil pressure in
turbocharger200-400kpaSteady speed regulation0-5%
adjustable Cooling methodForced water cooling, multi-fans
radiatorLubricating methodPressure and splashing
lubricatingIgnition methodSpark plug ignitionStarting method24V DC
startRotating directionCounterclockwise (flywheel view)Output
methodFlywheel outputAlternator DataModelIFC series or
equivalentRated capacity625kvaRated voltage400VRated
frequency50/60HzPower factor0.8 (lagging)Rated
speed1000/1200rpmProtection classIP23Insulation classHPhases and
connection3 phases and 4 wiresExciting methodBrushlessVoltage
regulating methodAVR automationSteady state voltage regulation
ratio≤±2.5%Transient voltage regulation ratio≤+20% (-15%)Voltage
settling time≤ 1.5sVoltage fluctuation ratio≤1%Steady state
frequency regulation ratio0-5%Transient frequency regulation
ratio≤±10%
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