50HZ Yuchai YCD4V33H6-75 40kW/50kVA Diesel Generator Set

50HZ Yuchai  40kW/50kVA Diesel Generator Set

1. Technical Parameter

2. Product Features

The Yuchai YCD4V33H6-75 40kW/50kVA diesel generator set is a high-reliability medium-power power generation device built on Yuchai mature 4V series turbocharged engine platform. As a mainstream 50kVA diesel generator widely used in engineering, commercial and industrial fields, this unit adopts original Yuchai power configuration, with sufficient power reserve, stable load capacity and strong environmental adaptability, solving the problems of insufficient power surge resistance and poor durability of ordinary medium-power generator sets on the market.

In terms of power output performance, the unit supports 40kW long-term stable prime power operation and 44kW emergency standby power supply. The scientific power margin design enables the equipment to adapt to long-term full-load continuous operation, and can easily bear the instantaneous startup impact of mechanical equipment and multi-group electrical loads without obvious voltage drop or frequency deviation. Equipped with high-performance brushless self-excited alternator and high-precision AVR automatic voltage regulator, the 50Hz fixed-frequency three-phase voltage output is always balanced and stable. Adopting H-grade super high-temperature resistant insulation materials, the alternator can effectively avoid insulation aging and breakdown faults caused by long-duration high-load operation, providing safe and stable power supply for precision electrical equipment and instrument systems.

Low maintenance cost and high operational stability are the prominent advantages of this Yuchai 40kW standby diesel generator set. Different from traditional brushed generators that require regular carbon brush inspection and replacement, the brushless self-excited structure eliminates vulnerable wearable parts, realizing long-term maintenance-free operation. It greatly reduces daily maintenance workload and later operating and maintenance costs for users, which is very suitable for unattended long-term standby scenarios. The IP23 professional protection grade can effectively block outdoor dust, debris and splashing rainwater, adapting to open-air placement and harsh construction site working conditions.

In terms of fuel economy and structural reliability, the YCD4V33H6-75 turbocharged intercooled engine adopts electronic fuel injection and optimized combustion matching technology. The full-load fuel consumption is stably controlled at 12.1L/H, with sufficient fuel combustion and low waste, maintaining excellent energy-saving performance in long-term variable-load operation. The four-cylinder in-line water-cooled structure runs smoothly with low vibration, effectively reducing mechanical loss and extending the overall service life of the unit. The closed circulating water cooling system ensures continuous and efficient heat dissipation, and the unit will not overheat and shut down even in high-temperature summer working environments.

The whole machine adopts integrated compact design with reasonable internal layout and small floor space, supporting fixed indoor installation and mobile trailer refitting. Whether it is long-term fixed emergency standby power or short-term mobile temporary power supply, it can meet the demand perfectly. With Yuchai’s strict factory quality inspection and mature after-sales system, this 50kVA diesel generator has low failure rate and high cost performance, which is a cost-effective medium-power power generation equipment recognized by the industry.

3. Application Scenarios

With stable power performance, strong load adaptability and diverse installation forms, the YCD4V33H6-75 Yuchai diesel generator set is widely used in commercial emergency standby power, construction engineering temporary power, outdoor field off-grid power supply and industrial and agricultural production backup power, covering most medium-power power demand scenarios in the market.

3.1 Commercial & Civil Emergency Standby Power

This 40kW diesel generator is the preferred backup power equipment for office buildings, commercial plazas, community property, hotels, supermarkets and park supporting facilities. When municipal grid power failure, power limit or sudden line failure occurs, the unit can start quickly and complete seamless power switching. It provides stable power guarantee for building lighting systems, monitoring equipment, weak current systems, elevator standby power and daily office electrical appliances, effectively avoiding operational paralysis and economic losses caused by power outages, and ensuring the normal operation of urban commercial and residential facilities.

3.2 Construction & Municipal Engineering Temporary Power

It is widely used for temporary power supply of urban road renovation, municipal greening, water conservancy projects, bridge construction and indoor decoration projects. The strong surge resistance and stable voltage output can fully meet the power demand of small welding machines, cutting equipment, concrete vibrators, construction lighting and workers’ temporary living electricity. The dust-proof and vibration-resistant body structure adapts to harsh construction site environments, and the flexible mobile design supports frequent site transfer, effectively improving construction power supply efficiency.

3.3 Outdoor Field Operation Off-grid Power Supply

The unit is very suitable for field geological exploration, forest fire prevention inspection, outdoor emergency rescue, remote mountain area construction and plant protection operation support. In remote areas without municipal grid coverage, it can be used as an independent mobile power station to provide long-term stable 380V three-phase power for field detection instruments, communication relay equipment and operational auxiliary facilities. The reliable 24V electric start system ensures smooth startup in low-temperature and dry field environments, with strong environmental tolerance.

3.4 Industrial & Agricultural Production Backup Power

It is commonly applied in small and medium-sized processing factories, mechanical processing workshops, cold storage constant temperature equipment, poultry and livestock breeding farms and agricultural intelligent greenhouses. For production and breeding equipment that cannot tolerate long-term power outage, the unit can quickly take over power supply after grid failure, preventing product scrapping, equipment shutdown loss and livestock survival risks caused by sudden power interruption. Meanwhile, it can also be used as auxiliary backup power for small power distribution rooms and communication base stations to ensure the continuous and stable operation of basic industrial and agricultural facilities.

4. Core Purposes

The core purpose of the Yuchai YCD4V33H6-75 40kW/50kVA diesel generator set is to provide stable emergency standby power and reliable off-grid mobile power supply for various industries, solve power supply risks caused by municipal grid instability, sudden power failure and no grid coverage, and ensure the continuous, safe and efficient operation of various medium-power electrical equipment. It is a multi-functional universal power generation equipment integrating emergency backup and temporary power generation.

Firstly, it undertakes critical emergency power backup tasks. As a high-performance 50kVA standby diesel generator, it has sufficient standby power reserve and fast response speed. It can automatically start and switch power supply in a short time after sudden grid power failure, effectively avoiding safety accidents and economic losses caused by power interruption, and protecting the normal operation of commercial buildings, industrial workshops and public service key equipment.

Secondly, it provides sustainable off-grid power support for remote and outdoor scenarios. In field operations, mountain construction and unpowered remote areas, the unit acts as an independent mobile power generation system, outputting standard 50Hz frequency and stable three-phase voltage, fully meeting the professional power demand of engineering machinery, precision detection instruments and operational equipment, and solving the power supply bottleneck of off-grid operation teams.

Thirdly, it balances power performance and long-term operating economy. With calibrated 12.1L/H full-load fuel consumption and Yuchai’s mature turbocharged energy-saving combustion technology, the unit maintains low comprehensive operating cost while ensuring strong 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 medium-power generator set of Yuchai, it fills the market gap of high-cost-performance 40kW power generation equipment. It perfectly matches the power demand of small and medium-sized enterprises, engineering construction teams, property communities and agricultural breeding users, and has become one of the most widely used and highly recognized general-purpose diesel generator sets in the medium-power market.

5. FAQ - Common Frequently Asked Questions

Q1: What is the actual fuel consumption of YCD4V33H6-75 generator set under different working loads?

A1: The official factory calibrated full-load (100% load) fuel consumption of this Yuchai 50kVA diesel generator set is 12.1L/H. In actual on-site operation, fuel consumption changes linearly with the working load. Under 50% light load, the fuel consumption is about 6.0-6.5L/H; under 75% conventional daily working load, the fuel consumption is controlled at 8.8-9.5L/H. Adopting turbocharged intercooled fuel injection technology, the fuel combustion is fully optimized, with stable fuel consumption curve and no sudden oil consumption surge. It can effectively control daily power generation costs for users with long-term standby and intermittent power generation needs.

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

A2: This Yuchai 40kW diesel generator adopts professional brushless self-excited alternator, which has obvious practical advantages over traditional brushed alternators. Firstly, there are no wearable carbon brush components, realizing truly maintenance-free daily operation, eliminating regular replacement and maintenance costs, and reducing on-site equipment management pressure. Secondly, matched with intelligent AVR automatic voltage regulation technology, the voltage output is ultra-stable with negligible current fluctuation, which can well protect precision instruments, monitoring systems and electrical equipment from burnout damage. Thirdly, the fully enclosed structure cooperates with H-grade ultra-high temperature insulation and IP23 protection grade, with excellent dust-proof, rain-proof and high-temperature resistance, adapting to various complex and harsh working environments.

Q3: How is the environmental adaptability and startup stability of the YCD4V33H6-75 generator set?

A3: This medium-power Yuchai generator set has excellent environmental adaptability and startup reliability. It adopts standard DC24V electric start system, which can achieve one-time successful startup in conventional low-temperature, dry and cold environments without manual auxiliary start. The applicable ambient temperature ranges from -15℃ to 45℃, covering most domestic seasonal temperature changes. The closed circulating water cooling system can effectively control the unit operating temperature, avoiding overheating shutdown during long-term full-load operation in high-temperature summer environments. The IP23 protection grade resists daily dust erosion and splashing rainwater, supporting outdoor open-air placement and indoor fixed installation, with strong compatibility for construction sites, field operations, commercial buildings and agricultural scenarios.