The versatile QES generators
QES 640


A standby generator is an essential part of any company’s performance network. It needs to be ready and able to provide power in the event of an electrical supply interruption.You need to be sure that the generator will sense the urgent need and provide an instant response, with guaranteed performance, at exactly the moment it’s needed.
We have extended our QES range with the new models up to 1250 kVA PRP to ensure we offer the generator that’s right for your business. Built to our time-tested design principles,used across our entire generator portfolio, the QES range offers you modular capabilities and room for upgrading and expansion; along with being designed for simple installation and exceptional reliability.



Standard Features

Integrated control and power cabinet:
• Qc series control system (multi-language interface including Chinese and English)
• Integrated SCADA function, suitable for RS485 communication port
• 4-pole circuit breaker
• Multiple control system models are available, and can be upgraded to intelligent parallel control system
• Integrated control and power output system, more convenient operation

Transport efficiency:
• Built-in single-point lifting beam (optional), strong structure and easy transportation
• Built-in integrated forklift slot
• Hot-dip galvanized forklift slot process can effectively avoid scratches caused by transportation, and the overall structure is more stable

Superior accessibility:
• Large service doors and panels for optimal serviceability
• Access to alternator (AVR and diode bridge)
• Full engine access
• Direct access to radiator panel for cleaning
• Access to external drain points

Installation efficiency:
• Plug-and-play cable wiring busbars
• Reasonable cable wiring position and natural cable bending
• Protection of high-temperature components, fans and belts
• Anti-spill base frame with sensor alarm function

Excellent performance:
• Sturdy maintenance door structure
• Double-layer powder coating process for galvanized box, C3M corrosion protection grade
• Unique sound-absorbing cotton, better flame retardant and noise reduction effect
• "Bump lock" design, reducing failure rate and improving safety
• Vertical muffler design, better heat dissipation and noise reduction
• Auxiliary winding of AC generator, higher safety
• Electronic speed governor engine

Maintenance efficiency
• Overall structure makes maintenance easier
• High quality and low maintenance of key components
• Maintenance intervals up to 500 hours

Optimize your power solutions

When you need temporary power, a single generator is not always the most efficient solution. Does the application load vary? Do any of the gensets in your fleet need higher power? A Modular Power Plant (or paralleling multiple generators) is the efficient solution if you answered yes to
any of the these questions.

We have developed a unique Power Management System(PMS). The PMS manages the number of generators running in parallel with load demand, starting and stopping units in line with increases or decreases in load.In this way, the load on each generator remains at a level that optimizes fuel consumption.
It also eliminates the need for generators to run with low load levels, which can cause engine damage and shorten the life expectancy of the equipment.

Technical data