50HZ Yuchai YC4A155-D30 90kW/112.5kVA Diesel Generator Set

 50HZ Yuchai 90kW/112.5kVA Diesel Generator Set

1. Complete Technical Parameter Table

The following table summarizes official factory calibrated data, original engine core specifications and universal industry parameters of the Yuchai YC4A155-D30 diesel generator set. All technical indicators are verified through professional bench testing and long-term field operation validation, covering generator set power performance, diesel engine configuration, alternator parameters and daily operating standards. This full parameter sheet is applicable for equipment selection, engineering bidding, on-site installation guidance, commissioning and daily operational maintenance management.

2. Product Features

The Yuchai YC4A155-D30 90kW/112.5kVA diesel generator set is a high-performance industrial-grade power generation device built on Yuchai mature 4A series turbocharged intercooled engine platform. As a popular 112.5kVA diesel generator in the medium and high-power power supply market, this unit adopts original Yuchai YC4A155-D30 industrial power core matched with Bosch high-pressure common rail fuel injection system. It passes G3 grade power quality certification for generator set equipment, featuring abundant power reserve, accurate fuel control and excellent transient load response capability, effectively solving the problems of insufficient high-load resistance and unstable power output of ordinary 90kW diesel generator sets under long-duration harsh working conditions.

In terms of power supply stability, the unit supports 90kW long-term uninterrupted prime power operation and 100kW emergency standby power output. With 103kW rated engine power reserve, the equipment can easily cope with instantaneous startup surge of multiple high-power mechanical devices and frequent load fluctuations. Even under 24-hour continuous high-load operation, there is no obvious voltage drop or frequency drift, always maintaining standard 50Hz three-phase balanced power output. Equipped with high-quality industrial brushless self-excited alternator and high-precision AVR automatic voltage regulator, the unit delivers ultra-stable current output with extremely low fluctuation rate. Matched with H-grade ultra-high temperature resistant insulation materials, the alternator effectively avoids insulation aging and circuit breakdown caused by long-term heat accumulation, providing reliable power protection for industrial precision equipment and large engineering electrical devices.

Low maintenance pressure and strong environmental adaptability are the core practical advantages of this Yuchai 90kW standby diesel generator set. Different from traditional brushed generators that require regular carbon brush replacement and routine maintenance, the brushless self-excited structure eliminates all wearable vulnerable parts, realizing long-term maintenance-free daily operation. It greatly reduces on-site equipment maintenance workload and later operational investment, making it ideal for unattended industrial standby power and outdoor long-term power supply scenarios. The IP23 professional protection grade can effectively block outdoor dust, debris and splashing rainwater, adapting to open-air placement and muddy, dusty construction site environments. Equipped with a full-flow oil cooler, the unit’s heat dissipation efficiency is significantly improved, ensuring stable heat dissipation performance even in high-temperature working environments and extending the whole machine service life.

In terms of operational reliability and fuel economy, the YC4A155-D30 engine adopts optimized turbocharged intercooled air intake technology and precise electronic fuel control logic. The fuel combustion is fully optimized, with full-load fuel consumption stably controlled at 27.1L/H, maintaining stable fuel-saving performance during 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 continuous full-load 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 large industrial plants and short-term mobile temporary power for key engineering projects. Complying with non-road National Stage III emission standards, the unit has low exhaust pollution and meets environmental protection requirements of various industrial parks and municipal construction zones. Backed by Yuchai’s strict factory quality inspection and nationwide after-sales service network, this 112.5kVA diesel generator has low failure rate, stable operation and high cost performance, becoming a preferred medium and high-power power generation equipment for industrial and engineering users.

3. Application Scenarios

With excellent high-load resistance, fast transient response, stable power output and diverse installation forms, the YC4A155-D30 Yuchai diesel generator set is widely used in large industrial emergency standby power, municipal key engineering temporary power supply, outdoor field off-grid power generation and large commercial public facility backup power, covering all mainstream medium and high-power power demand scenarios.

3.1 Large Industrial Production Emergency Standby Power

This 90kW diesel generator serves as the core backup power equipment for large processing factories, mechanical manufacturing bases, chemical auxiliary workshops, food processing enterprises and constant-temperature storage warehouses. For large-scale production lines and precision industrial equipment that cannot withstand sudden power outage, the unit can start quickly and complete seamless power switching after municipal grid failure. Its strong high-load impact resistance effectively avoids batch product scrapping, mechanical equipment burnout and production progress stagnation caused by power interruption, ensuring the continuous and stable operation of industrial production systems.

3.2 Municipal & Key Engineering Temporary Power

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

3.3 Outdoor Field Off-grid Power Supply

The unit is perfectly applicable for large-scale field geological exploration, forest ecological protection, outdoor emergency rescue engineering, remote mountain infrastructure construction and field scientific research base operation. 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 large operational auxiliary facilities. The reliable DC24V electric start system ensures smooth one-key startup in low-temperature, dry and high-altitude field environments with strong environmental tolerance.

3.4 Large Commercial & Public Facility Backup Power

It is widely equipped for emergency standby power of large business districts, high-star hotels, large supermarkets, scenic area supporting facilities, communication base stations and hospital auxiliary power systems. 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 public service paralysis and economic losses caused by power outages, and ensuring the normal operation of urban key public facilities.

4. Core Purposes

The core purpose of the Yuchai YC4A155-D30 90kW/112.5kVA diesel generator set is to provide high-stability emergency standby power and high-reliability off-grid mobile high-power power supply for large industrial production, key engineering construction and urban public service fields. It 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 large high-power electrical equipment. It is a high-performance universal power generation equipment integrating industrial standby and engineering temporary power generation.

Firstly, it undertakes critical emergency power backup tasks for large industrial enterprises. As a high-performance 112.5kVA standby diesel generator, it has abundant power reserve and ultra-fast transient response capability. It can automatically start and complete power switching in a short time after sudden grid power failure, effectively avoiding large-area industrial production shutdown losses and mechanical equipment safety accidents caused by power interruption, and protecting the stable operation of large factory production lines and precision industrial systems.

Secondly, it provides sustainable high-power off-grid power support for key engineering and remote field scenarios. In large-scale municipal 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 high-load power demand of multiple large engineering mechanical equipment, solving the long-term power supply bottleneck of large-scale off-grid construction and field operation teams.

Thirdly, it balances high-power performance and long-term operational economy. With calibrated 27.1L/H full-load fuel consumption and Yuchai’s mature turbocharged intercooled 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 greatly reduce equipment failure rate and later maintenance investment, realizing long-term stable and low-cost high-intensity power generation operation.

Finally, as an upgraded high-power model of Yuchai 4A series generator sets, it fills the market gap of high-reliability 90kW industrial power generation equipment. It perfectly matches the power demand of large industrial enterprises, key engineering construction teams and urban public property management units, and has become one of the most cost-effective and widely recognized medium and high-power diesel generator sets in the industry market.

5. FAQ - Common Frequently Asked Questions

Q1: What is the actual fuel consumption of YC4A155-D30 generator set under different working loads?

A1: The official factory calibrated full-load (100% load) fuel consumption of this Yuchai 112.5kVA diesel generator set is 27.1L/H. In actual on-site operation, fuel consumption changes linearly with the working load. Under 50% light load, the fuel consumption is about 13.2-14.0L/H; under 75% conventional daily working load, the fuel consumption is controlled at 20.1-20.8L/H. Adopting Bosch high-pressure common rail fuel injection and turbocharged intercooled combustion technology, fuel injection volume is precisely controlled with full combustion. The fuel consumption curve remains stable during long-term continuous operation, with no sudden fuel surge, helping users accurately control daily power generation costs for industrial standby and engineering temporary power supply.

Q2: Why is the brushless self-excited alternator more suitable for this 90kW high-power generator?

A2: This Yuchai 90kW diesel generator adopts industrial-grade brushless self-excited alternator, which is more adaptable to medium and high-load working conditions than traditional brushed alternators. Firstly, it eliminates wearable carbon brush components, realizing true long-term maintenance-free operation, saving regular replacement and maintenance costs, and reducing on-site equipment management pressure for unattended working conditions. Secondly, matched with intelligent AVR automatic voltage regulation technology, the voltage fluctuation rate is extremely low, outputting ultra-stable current, which can effectively protect large industrial equipment and precision instruments from burnout caused by unstable voltage. Thirdly, equipped with H-grade ultra-high temperature insulation and IP23 dustproof and rainproof protection grade, the alternator adapts to high-temperature, dusty and humid harsh environments, with strong environmental adaptability and long service life.

Q3: How is the startup reliability and environmental adaptability of the YC4A155-D30 generator set?

A3: This medium and high-power Yuchai generator set has excellent startup reliability and environmental tolerance. It adopts standard DC24V electric start system with optional ATS automatic start function, supporting one-key quick 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 upgraded full-flow oil cooler and closed circulating water cooling system effectively control operating temperature, avoiding overheating shutdown during 24-hour continuous full-load operation in high-temperature summer environments. The IP23 professional protection grade resists daily dust erosion and splashing rainwater, supporting outdoor open-air placement and indoor fixed installation, with strong universal compatibility for industrial production, engineering construction, field operation and public facility scenarios.