50HZ Yuchai YC4A140L-D25 80kW/100kVA Diesel Generator Set

50HZ Yuchai  80kW/100kVA Diesel Generator Set

1. Full Technical Parameter Table

The following table lists official factory calibration data and industry-standard universal parameters of the Yuchai YC4A140L-D25 diesel generator set. All specifications are verified through professional bench testing and long-term field operation, covering complete unit power parameters, original Yuchai diesel engine configurations, alternator performance and daily operating indicators. This standardized parameter sheet can be directly used for equipment selection, project bidding, on-site installation guidance, commissioning and routine maintenance management.

2. Product Features

The Yuchai YC4A140L-D25 80kW/100kVA diesel generator set is a cost-effective medium-large power generation equipment built on Yuchai mature 4A series industrial engine platform. As a widely recognized 100kVA diesel generator in the construction and industrial power supply market, this unit adopts original Yuchai YC4A140L-D25 turbocharged power core with optimized mechanical structure and electronic fuel control system. It delivers stable power output, strong load impact resistance and long-duration continuous operation capability, solving the common problems of insufficient power reserve and unstable voltage of ordinary 80kW diesel generator sets under high-load and complex working conditions.

In terms of power supply stability, the unit supports 80kW long-term uninterrupted prime power operation and 88kW emergency standby power output. Sufficient power margin design enables the equipment to cope with instantaneous startup surge of multiple high-power electrical devices and frequent load fluctuations without voltage drop or frequency deviation. Equipped with high-quality industrial brushless self-excited alternator and high-precision AVR automatic voltage regulator, the unit outputs standard 50Hz three-phase balanced voltage consistently. Adopting H-grade ultra-high temperature resistant insulation materials, the alternator effectively resists heat aging and insulation breakdown caused by long-term high-load operation, providing safe and reliable power guarantee for industrial precision instruments, production line equipment and engineering electrical facilities.

Low maintenance difficulty and excellent environmental adaptability are the core practical advantages of this Yuchai 80kW standby diesel generator set. Different from traditional brushed generators that require regular carbon brush replacement and daily maintenance, the brushless self-excited structure eliminates all wearable vulnerable parts, realizing long-term maintenance-free operation. It greatly reduces on-site equipment management workload and later operational costs, making it very suitable for unattended factory standby power and long-term outdoor power supply scenarios. The IP23 professional protection grade can effectively block outdoor dust, debris and splashing rainwater, adapting to open-air placement and harsh construction site environments. The high-rigidity alloy cast iron engine block and wet cylinder sleeve structure enhance overall vibration resistance and structural stability, with convenient daily inspection and maintenance, effectively extending the whole machine service life.

In terms of fuel economy and operational reliability, the YC4A140L-D25 engine adopts professional turbocharged air intake technology and optimized direct injection combustion design. With full-load fuel consumption stably controlled at 24.6L/H, the fuel burns fully and evenly, maintaining stable fuel-saving performance during long-term variable-load operation. The four-cylinder in-line water-cooled structure runs smoothly with low vibration and low noise, reducing mechanical loss during high-intensity operation. The closed circulating water cooling system ensures continuous and efficient heat dissipation, avoiding overheating shutdown failure even in high-temperature summer environments with 24-hour continuous operation. Meanwhile, the complete intelligent safety protection system can automatically alarm and shut down in case of low oil pressure, high water temperature, overload, short circuit and overspeed, effectively preventing equipment damage and operational safety accidents.

The whole machine adopts integrated compact base design with reasonable internal layout and small floor space, supporting fixed indoor installation and mobile trailer refitting. It can meet the dual application needs of long-term fixed emergency standby power for industrial plants and short-term mobile temporary power for large-scale engineering projects. Complying with non-road National Stage II emission standards, the unit has low exhaust pollution and meets environmental protection requirements of most industrial parks and construction zones. Backed by Yuchai’s strict factory quality inspection and nationwide after-sales service network, this 100kVA diesel generator has low failure rate, strong versatility and high cost performance, standing out among similar medium-large power generation equipment.

3. Application Scenarios

Benefiting from strong high-load resistance, fast transient response, stable power output and diverse installation forms, the YC4A140L-D25 Yuchai diesel generator set covers multiple core scenarios including industrial emergency standby power, municipal engineering temporary power supply, outdoor field off-grid power generation and commercial public facility backup power, fully adapting to various complex working environments with medium and high power demand.

3.1 Industrial Production Emergency Standby Power

This 80kW diesel generator serves as the core backup power equipment for medium and large processing factories, mechanical manufacturing workshops, food processing plants, constant-temperature cold storage and industrial supporting facilities. For industrial production lines and precision processing equipment that cannot tolerate sudden power outage, the unit can start quickly and complete seamless power switching after municipal grid failure. Its excellent load impact resistance effectively avoids product scrapping, equipment shutdown damage and production progress delay caused by power interruption, ensuring the continuous and stable operation of industrial production systems.

3.2 Municipal & Large-scale Engineering Temporary Power

It is widely used for temporary power supply of urban road reconstruction, municipal pipeline renovation, water conservancy projects, bridge engineering and infrastructure construction. Sufficient power reserve and fast load response speed can fully meet the simultaneous power consumption of multiple welding machines, cutting equipment, engineering machinery and on-site large-area construction lighting. The dust-proof and vibration-resistant body structure adapts to harsh construction site environments, and the flexible mobile design supports frequent site transfer, greatly improving construction power supply efficiency and project construction progress.

3.3 Outdoor Field Off-grid Power Supply

The unit is perfectly applicable for field geological exploration, forest fire prevention inspection, outdoor emergency rescue engineering, remote mountain road construction and field scientific research operations. In remote areas without municipal grid coverage, it acts as an independent mobile power station to provide long-term stable 380V three-phase high-power power for field detection instruments, communication relay equipment and operational auxiliary facilities. The reliable DC24V electric start system ensures smooth one-key startup in low-temperature and dry field environments with strong environmental tolerance.

3.4 Commercial & Public Facility Backup Power

It is commonly equipped for emergency standby power of large community clusters, commercial plazas, hotels, supermarkets, scenic area supporting facilities and communication base stations. During municipal grid power failure, peak power limit or line maintenance periods, the unit provides stable power guarantee for building lighting, monitoring systems, weak current equipment and public service facilities, avoiding operational stagnation and public service paralysis caused by power outages, and ensuring the normal operation of urban public and commercial supporting facilities.

4. Core Purposes

The core purpose of the Yuchai YC4A140L-D25 80kW/100kVA diesel generator set is to provide high-stability emergency standby power and high-reliability off-grid mobile power supply for industrial production, engineering construction and public service fields. It effectively solves various power supply risks such as municipal grid instability, sudden power failure and no grid coverage, and guarantees the continuous, safe and efficient operation of medium and high-power electrical equipment. It is a multi-functional universal power generation equipment integrating industrial standby and engineering temporary power generation.

Firstly, it undertakes key industrial emergency power backup tasks. As a high-performance 100kVA standby diesel generator, it has sufficient standby power reserve and fast transient response capability. It can automatically start and switch power supply in a short time after sudden grid power failure, effectively avoiding large-area industrial production shutdown losses and equipment safety accidents caused by power interruption, and protecting the stable operation of factory production lines and precision industrial equipment.

Secondly, it provides sustainable high-power off-grid power support for engineering and remote scenarios. In large-scale engineering construction and unpowered remote areas, the unit operates as an independent mobile power generation system, outputting standard 50Hz frequency and stable three-phase high-power voltage. It fully meets the simultaneous power demand of multiple engineering mechanical equipment, solving the power supply bottleneck of large-scale off-grid construction and field operation teams.

Thirdly, it balances strong power performance and long-term operational economy. With calibrated 24.6L/H full-load fuel consumption and Yuchai’s mature turbocharged energy-saving combustion technology, the unit maintains controllable comprehensive operating costs while delivering strong high-load power output. The brushless maintenance-free design and IP23 high-standard protection structure reduce equipment failure rate and later maintenance investment, realizing long-term stable and low-cost power generation operation.

Finally, as a classic cost-effective model of Yuchai 4A series medium-large power generator sets, it fills the market gap of high-reliability 80kW industrial power generation equipment. It perfectly matches the power demand of medium and large industrial enterprises, engineering construction teams and public property management units, and has become one of the most popular general-purpose diesel generator sets in the medium-large power market.

5. FAQ - Common Frequently Asked Questions

Q1: What is the actual fuel consumption of YC4A140L-D25 generator set under different working loads?

A1: The official factory calibrated full-load (100% load) fuel consumption of this Yuchai 100kVA diesel generator set is 24.6L/H. In actual on-site operation, fuel consumption changes linearly with the working load. Under 50% light load, the fuel consumption is about 12.0-12.8L/H; under 75% conventional daily working load, the fuel consumption is controlled at 18.2-19.0L/H. Adopting optimized turbocharged combustion technology, the fuel burns fully and evenly with a stable fuel consumption curve. There will be no sudden fuel surge during long-term continuous operation, which helps industrial and engineering users accurately control daily power generation costs.

Q2: What are the practical advantages of the brushless self-excited alternator equipped on this unit?

A2: This Yuchai 80kW diesel generator adopts industrial-grade brushless self-excited alternator, which has obvious practical advantages over traditional brushed alternators. Firstly, it eliminates wearable carbon brush components, realizing true long-term maintenance-free operation, removing regular replacement and routine maintenance costs, and greatly reducing on-site equipment management pressure. Secondly, matched with intelligent AVR automatic voltage regulation technology, the voltage fluctuation rate is extremely low, outputting ultra-stable current, which can effectively protect industrial equipment and precision instruments from burnout caused by unstable voltage. Thirdly, the fully enclosed structure paired with H-grade ultra-high temperature insulation and IP23 protection grade delivers excellent dust-proof, rain-proof and high-temperature resistance, adapting to various complex and harsh industrial workshops and construction site environments.

Q3: How is the environmental adaptability and startup stability of the YC4A140L-D25 generator set?

A3: This medium-large power Yuchai generator set has excellent environmental adaptability and ultra-high startup reliability. It adopts standard DC24V electric start system with optional ATS automatic start function, enabling one-time successful startup in low-temperature, dry and high-altitude environments without manual auxiliary operation. The applicable ambient temperature ranges from -15℃ to 45℃, adapting to seasonal temperature changes in most regions. The closed circulating water cooling system effectively controls operating temperature, avoiding overheating shutdown during long-term full-load operation in high-temperature environments. The IP23 protection grade resists daily dust erosion and splashing rainwater, supporting outdoor open-air placement and indoor fixed installation, with strong universal compatibility for industrial, engineering and public facility scenarios.