Generators are indispensable as power sources at construction sites. Widely used for live TV broadcasts, various types of events, leisure activities, and other purposes, our generators produce the optimal power to meet user needs. Offering high-performance power generation and durability as well as energy conservation and noise reduction, these products have won endorsement as the first choice of professionals in Japan and around the world.
Denyo power generators are capable of generating power in various situations where public power supply is not available. They contribute to build infra-structure of society and are highly appreciated by customers all over the world in a variety of situations like civil engineering works and construction works to build the infrastructure of our society.
Denyo engine power generators are capable of providing power at various sites where power is required like civil work and construction sites as well as are also employed in various facilities as emergency power source for critical equipment like medical equipment in hospital, bank online system and traffic signals etc.
- As the power source in the area where electricity is unavailable.
- As the power source in the construction site.
- As the emergency power source in the hospital.
General construction
The DCA series generators are complete, stand-alone generating sets. All models consist of a Denyo alternator which is directly coupled to a diesel engine.
The alternator and engine are set on a common skid base. Special vibration isolators are used to minimise vibrations during operation.
The generator and electrical components are fully enclosed in a solid-steel, weatherproof bonnet.
Noise suppression is achieved using highly effective sound insulating materials.
Performance features
High-performance
The denyo generating system guarantees the following levels of performance:
- Temperature rise: 100°C temperature rise at 40°C ambient (JEC2130)
- Insulation: ClassF (JEC2130)
- Voltage regulation; Within ±0.5% (except DCA -400SP)
- Frequency regulation: Within ± 5.0% through no-load to full-load
- Voltage Waveform: Deviation factor of open-circuit terminal voltage does not exceed 0.06. Telephone influence factor (TIF) is less than 50.
- Electromagnetic interference level: Attenuated to meet most commercial requirements.
- Insulation resistance: Higher than 3 mega-ohms, measured between armature windings and earth, field windings and earth. field control circuit and earth.
The innovative excitation system* fitted on all models, in conjunction with the AVR and advanced brushless generator, provides fast voltage regulation in response to load variations, enabling use soon after start up. This system provides output stability during load variations.
Synchronous brushless alternator for minimal wear
Designed to function in all climatic conditions.
Will safely power the most sensitive loads, such as thyristors, invertors and computer systems, without the risk of damage to these loads, thanks to the high level electrical characteristics of the generator’s output.
Economical performance
- Easy staring and quick response
- Utilising highly reliable diesel engines with low fuel consumption, manufactured by Japan’s leading engine manufacturers.
Unsurpassed flexibility
To meet today’s varying needs successfully, your equipment must be as flexible as you are. The Denyo DCA series generator range provides you with the flexibility to get the job done simply and economically, without any delays.
True heavy-duty performance
For a particular job, you may need that extra power from your generator. With the DCA series, the standby power rating (110% or 105% load except DCA-610SPM) can be used continuously for 1 hour in every 8 hours of continuous operation. This extra power performance of Denyo generators means you can get the job done, without the inconvenience of using another generator.
Parallel operation feature (except for DCA-100 and below)
From time to time, at a construction site, mine site or in other situations, a large temporary power supply is required for a particular job. To meet this requirement Denyo’s DCA series generators incorporate a built-in parallel operation drive system, allowing you to create a large capacity generating plant on-site, without the need to procure any other equipment.
Dual voltage system (optional for DCA-25ESK, 25USI 3, 45ESI, 45USI 2)
For companies that operate internationally or have motors that require power at different voltages, a different generator is usually required for each voltage setting. However, the DCA series generators are equipped with a dual voltage system, so one generator can be used to power motors with different voltage settings. An extremely convenient feature.
All models can run at 50Hz/60Hz
Simply adjust the engine speed on the control panel to use a DCA Series generator at either 50Hz or 60 Hz.
Extremely quiet operation
In urban areas and at the worksite, there is an ever increasing demand for reduced noise pollution. In response to these concerns, Denyo has pioneered a soundproof and super soundproof range of generators. The DCA series generators are extremely quiet when operating at full load, even though all soundproof models are compactly designed. Check the specifications for the sound level of each model.