120kw Natural Gas Generator with Cummins Engine

Charter1:Essential Information

1.1. Generator Set Parameter

1.2. Engine Parameter

.3. Alternator

1.4. Control System:

1.5.Fuel:

Chapter2,Design Philosophy/Configuration

2.1 Design Philosophy

◆The generating set is a power generation device with the gas fuel as the power source, and the thermal power is converted into electric energy by the ignition engine. Equip cooling system, lubricating system, fuel supplying system, control system, power output, parallel, common base. Able to work with low pressure, high pressure gas and liquid fuel.

◆ Connect the gas engine to the alternator with flange and install on the welded common base. Set shock mitigation system to eliminate the vibration when running.

◆ Unit control system group use the control module DEEPSEA or ZONGZHI Generator set and set on the common base.

◆ Set the gas valve integration group on the common base, include Manual cut-off valve, pressure gauge, filter, pressure regulating valve, safety electromagnetic cut-off valve, flame blocking device.

◆Gas engine: using Cummins 6CT diesel engine as base machine, high energy sequential ignition, Gas specific debugger, all parts of control system are from the well-known brand in the word.

◆ Alternator: jiangsu lingyu self excitation brushless AC synchronous generator

2.2 Configuration

2.3.Running Requirement

2.4. Formation of Mixed Gas

◆ Air will be filtered from the dry type filter of engine.

◆ pressure regulating valve evenly supply gas and mix via proportional mixer.

◆ Exhaust gas turbocharger compress mixed gas to improve the engine charging efficiency.

◆ using oil cooling or water cooling double cooling booster to ensure booster regular works.

inner cooling system

◆ using air to air or water to air inner cooling to reduce the mixed gas temperature, increase the density and improve the engine efficiency.

2.5. Engine Ignition Management System

◆ After the control system of the muti-point sequential ignition engine collects the position signal of the camshaft, it controls the ignition coil to fire in sequence

◆ DC24V

◆ The ignition time and ignition energy can be accurate via programming the Map

◆ Equip high energy ignition coil for each cylinder

◆ Self-learn Function: ECW will self-correct the running parameter via temperature sensor, pressure sensor and throttle position signal.

◆ Industrial grade spark plug, high voltage wire

◆ Work Temp. :-20°to 85°

u Exhaust System

◆ Dry Type,Heat insulated exhaust manifold

◆ Industrial grade muffler

◆Exhaust shock proof corrugated pipe

2.6. Lubricating System

◆ Forced lubricgtion by Lube oil circulation pump with safety valve, and splash lubrication.

◆Lube oil heater (Optional)

◆ Cummins fleetguard filter

◆The brand of lube oil: Special lube oil for Cummins Nature Gas Gensets(Recommendation)

Chapter3:Generator set monitoring system

Use Deep-sea Controller(7320)to control generator set data,details as follows:

◆ 24 VDC

◆ IP44 Dustproof

◆Dust-proof, water-proof metal enclosure

◆ Remote Control Interface

◆ Automatic start / stop control switch

◆ Set input, output, alarm and time

◆ Automatic emergency stop fault status and fault display

◆Digital control inputs, relay control output

◆LCD Display

◆ Engine speed

● Engine running time

● Total generating capacity

● Oil Pressure

● Cooling water temperature

●Battery voltage

● L-L volts generator set three-phase Phase voltage and line voltage

● Generator set three phase current

● Generator set frequency

● Power Factor

◆ Alarm protection

● Low oil pressure, low oil level

● High coolant temperature, low coolant level

● Charging fault

● over Speed / under speed, over voltage / under voltage, over current / under current, overload, ground fault

● Failed to start

◆ Emergency Shutdown

● Emergency stop

● Speed signal loss

◆ program protection delay function

● High and low voltage

● High and low frequency

● Overcurrent

● Reverse power

◆ Scalable functionality

● ATS automatic conversion system

● Scalable GPRS function, SMS notification unit status

●Automatic float charging, the battery protection

● Fuel Leak Detection

● Remote monitoring

Chapter 4:Technology data design/operating

4.1 Coolant filling volume

4.2 Oil filling volume

Chongqing SAC Group Co., Ltd is located in Chongqing,SAC Power mainly engages in research,manufacture, sales diesel engine, gas engine and generating sets as well. SAC's prime products include Cummins diesel engines (30kw ~ 2000kw), such as NTA855, KTA19, KTA38 and KTA50-TA, gas engine (40kw ~ 700kw), diesel generator sets (200kw to 2000kw), natural gas generator sets (30kw ~ 650kw) .

The Cummins PT fuel injection system, hydraulic injection and changeable timing system, turbocharging system, and air inner-cooling system; With those features, SAC's engines possess more advantages, such as larger power, fuel-efficient, lower noise,smaller volume, and lighter weight, etc.

Continual research and innovative development in technology is the key to our success. We have obtained more than 30 nationally registered patents, including 3 invention patents (cast-steel cylinder body of diesel engine), 15 design patents (cylinder block of diesel engine), and 18 utility model patents (cast-steel individual cylinder head of diesel engine).