DOUBLEARROW SERIES PRODUCTS
DA-CNG Series -- Powered by CUMMINS Engine 丨 Three-phase 50Hz
DA-CNG Series -- Powered by CUMMINS Engine 丨 Three-phase 60Hz

DA-CNG SERIES CUMMINS 300-1000KW
DOUBLE-ARROW DA-CNG series gas generator sets adopt world-renowned CUMMINS gas engine which can provide customized solutions in different projects from 300KW to 1000KW.
Many advanced technologies integrated
● Highly efficient gas engine with stable and strong power
● Lean combustion technology with high air / fuel ratio
● Natural and forced ventilation integration technology
Intact configuration and control
●Touch-screen operation control system
● Electronic ignition control system based on microprocessor
● Exact speed control system for high stability of frequency
● Heat recovery through coolant and exhaust exchangers
● Integrated control cabinet with comprehensive monitor , control and protection
Paralleling functions
● Several units can run in paralleling mode for heavy - duty demand and automatically parallel or disconnect according to the changes of load
● Paralleling with mains can output power to mains , replace it or operate for peak shaving
Frequency conversion control technology for fans
● No need to start fans in low temperature
● Start several fans in medium temperature to both supply power and lower gas consumption
Advanced waste heat recovery system
● The power produced during the unit operation can meet the demand of users , at the same time a mass of heat in the jacket water and exhaust gas can be recovered through heat exchangers , heat recovery boilers and chillers to provide users heat and cooling
Automatic operation system with touch screen
● 10- inch colored touch display screen for easy data reading
● Intact parameter monitor and control of fuel , engines and generators
● Monitor and control of pumps , valves and fans - Local or remote monitor and control
● Automatic oil refilling system for continuous unit running
● Extensible input and output control meeting the users ' localization demands
Paralleling and control cabinet
● Integrated paralleling and control cabinet as standard configuration with IP54 protection
● Internal integrated controller and electrical equipment
● Paralleling function with other units or mains and control and protection functions
● Easy paralleling with mains in peak shaving mode , output to mains mode or isolated mode
Automatic charging system
● Automatically check the voltage of the battery ensuring the voltage in the applicable range and the unit can start at any time
Products are fitted with many kinds of sensors and safety valves , integrating control , measurement and protection functions
Cylinder temperature protection system
● Cylinder temperature sensors or exhaust manifold temperature sensors can measure the combustion or exhaust gas temperature and send signals to the control system to monitor engine ' s operation condition and ensure normal operation
Detonation control system
● Based on the signals from sensors , the controller sends out analog signals to ignition system after processing so as to adjust ignition timing , reduce load or shutdown to avoid detonation
Gas leakage protection device
● This avoids gas leakage and once the gas leaks , gas pipeline will be turned off and alarms will be sent out
Air circuit breaker
● Well-known brand breaker is integrated into breaker cabinet with control and various protection functions against overload , short circuit , under voltage etc
● Coupling between engine and alternator dampens rotational vibrations and load surge , and limits torque to protect the actuator from overload
● Equipped filters separate dust , metal scraps , carbon deposit etc . efficiently and restrain abrasion of engine parts for example crankshaft to prolong the unit’s lifetime
● The container is manufactured as ISO standard container and accordant with shipping regulations and CSA certificate . Stainless steel bolts and locks are installed on the exterior of container for corrosion resistance and long life
● High quality steel monocoque base frame with reinforcement design is manufactured with advanced welding technology
● Bellows installed between exhaust manifold and silencer keeps exhaust assembly in flexible
connection , depresses vibration and noise and prolongs the service life of exhaust system
● The device can introduce lightning into the earth and protect personnel and equipment from lightning stroke
● Internal smoke status is detected in time and once excessive smoke is detected , the system would send out a warning to prevent fire spreading or explosion
● The shutters control inlet and outlet automatically , i . e . close shutters when CHP unit stops or open them when CHP unit starts , thus these achieve automatic adjustment and prevent small animals entering into the unit when it stops . Once gas leakage happens , they are closed automatically to isolate internal air and prevent explosion
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We offer custom solutions specific for you, with 24/7/365 uninterrupted service and support.









