60Hz YUCHAI YC4V55Z-D21 30kW/37.5kVA Diesel Generator Set

60Hz YUCHAI 30kW/37.5kVA Diesel Generator Set
1. Technical Parameter
Parameter Item | Technical Data |
Generator Set Model | YUCHAI YC4V55Z-D21 |
Rated Frequency | 60Hz |
Prime Power (kW/kVA) | 30kW / 37.5kVA |
Standby Power (kW/kVA) | 33kW / 41kVA |
100% Load Fuel Consumption | 10.2L/H |
Supporting Engine Brand | YUCHAI (Yuchai Power) |
Engine Model | YC4V55Z-D21 |
Engine Structure | 4-cylinder in-line, 4-stroke, water-cooled, turbocharged |
Alternator Type | Brushless self-excited alternator |
Insulation Class | H Class |
Protection Grade | IP23 |
Rated Voltage | 230V / 400V (Single/Three Phase) |
Rated Speed | 1800RPM (Standard 60Hz) |
Power Factor | 0.8 (Lagging) |
Start Mode | DC24V Electric Start |
Voltage Regulation System | Automatic AVR Voltage Regulation |
Ambient Working Temperature | -25℃ ~ +55℃ |
Maximum Working Altitude | ≤2500m (No power derating) |
Overhaul Service Life | ≥12000 Working Hours |
Cooling Method | Closed Cycle Water Cooling |
2. Product Features
The YUCHAI YC4V55Z-D21 30kW/37.5kVA 60Hz diesel generator set is a newly upgraded medium-small power generating equipment tailored for global 60Hz power grid standards. As a hot-selling 37.5kVA prime power diesel generator and 41kVA standby power generator, it inherits Yuchai’s mature industrial engine manufacturing technology, balancing stable power output, low operating failure rate and economical fuel consumption, and is widely recognized in the small and medium genset market for its durable performance and strong scene adaptability.
In terms of power output stability, this 60Hz Yuchai diesel generator adopts a high-quality brushless self-excited alternator matched with intelligent AVR automatic voltage regulation module. Equipped with H-grade high-temperature resistant insulating materials and IP23 dustproof and splash-proof protection structure, the whole power generation system can effectively resist voltage fluctuation and current interference caused by load changes. The three-phase voltage output is balanced with low waveform distortion, which can safely supply power for precision instruments, industrial equipment and commercial electrical facilities without burning out electrical appliances due to unstable voltage.
In terms of power performance configuration, the supporting YC4V55Z-D21 four-cylinder turbocharged water-cooled engine provides strong power reserve. The unit can maintain 30kW continuous stable prime power output for a long time, and support 33kW short-time emergency standby power surge. With a full-load fuel consumption of only 10.2L/H, it achieves high power output with controlled fuel cost, solving the problem of high energy consumption of traditional small diesel generators in long-term operation. The electronic speed regulation system ensures sensitive speed response and stable frequency locking, fully complying with 60Hz grid matching standards.
In terms of environmental adaptability and durability, the whole set is designed for harsh outdoor and industrial working conditions. It can realize reliable cold start at -25℃ low temperature and continuous stable operation in high-temperature environments up to 55℃. It can work normally at an altitude of 2500 meters without power attenuation, perfectly adapting to high-altitude mountainous areas, low-temperature northern regions and high-temperature tropical overseas areas. The thickened steel chassis and integral shock absorption structure reduce vibration during operation, while the anti-corrosion spray process extends the service life of the unit in humid and dusty environments.
In terms of operation and maintenance, the brushless alternator design eliminates the need for regular carbon brush replacement, greatly reducing daily maintenance workload and later operating costs. The DC24V electric start system supports one-key quick start and fast switching between grid power and generator power. The built-in multi-protection system can automatically monitor water temperature, oil pressure, overload and short circuit, and realize automatic shutdown and alarm in case of faults, effectively protecting the engine and alternator core components. The ultra-long overhaul cycle of more than 12,000 hours makes it very suitable for long-term standby and intermittent frequent power supply scenarios.
3. Application Scenarios
With professional 60Hz frequency configuration, 30kW stable prime power and 41kW strong standby surge capacity, the YUCHAI YC4V55Z-D21 diesel generator set covers civil commercial, industrial production, outdoor engineering and overseas power supply fields, and is the preferred power guarantee equipment for multiple medium and small load scenarios.
3.1 Construction Site Temporary Power Supply
This 37.5kVA diesel generator is widely used in urban construction, rural infrastructure renovation, road and bridge engineering, and pipeline laying projects. It can provide stable temporary power for small construction machinery, on-site lighting equipment, temporary office equipment and water supply and drainage systems. It effectively solves the problems of insufficient on-site grid power, inconvenient power taking and sudden power outage, ensuring the continuous progress of construction projects.
3.2 Commercial Civil Emergency Standby Power
It is suitable for shopping malls, supermarkets, community property districts, office buildings, small hotels and catering venues as emergency standby power. When the municipal power grid is overhauled or suddenly cut off, the unit can start quickly to maintain the normal operation of building lighting, elevators, monitoring systems and fire-fighting equipment, avoiding operational losses and safety hidden dangers caused by power outages.
3.3 Industrial Workshop Production Power Supply
For small processing workshops, breeding bases, packaging factories and mechanical processing plants, this Yuchai 30kW diesel generator can be used as both prime power and backup power. It can stably drive small production equipment, ventilation systems and constant-temperature equipment, with stable frequency and voltage, and will not affect the processing accuracy and service life of production equipment.
3.4 Outdoor Field Operation Power Supply
Relying on strong harsh environment adaptability, the unit is commonly used in field exploration, environmental monitoring, mountain area operation and outdoor rescue projects. It can work stably in high altitude, low temperature and dusty outdoor environments, providing reliable continuous power support for field operation equipment and staff living electrical facilities.
3.5 Overseas 60Hz Grid Matching Projects
Targeting overseas markets with 60Hz power standards such as Southeast Asia, the Middle East, Africa and Latin America, this 60Hz dedicated diesel generator perfectly matches local grid frequency parameters. It is widely used in overseas small factory power supply, residential backup power, engineering supporting power and cross-border power equipment supporting projects, with extremely high market compatibility.
4. Core Purpose
The core purpose of the YUCHAI YC4V55Z-D21 30kW/37.5kVA 60Hz diesel generator set is to provide high-stability continuous prime power supply and high-reliability emergency standby power guarantee for medium and small load scenarios, and it is a cost-effective universal power generation equipment integrating daily power generation and emergency backup.
As a professional prime power generator, the 30kW rated prime power can be used as the main power source for long-term continuous power generation in areas without municipal grid coverage or unstable grid power. Whether it is remote rural areas, field operation bases or temporary engineering construction sites, it can provide 24-hour stable and uninterrupted power supply. The optimized fuel injection and combustion system controls the full-load fuel consumption at 10.2L/H, realizing low-cost and high-efficiency long-term power generation, which greatly reduces the daily power consumption cost of users.
As an emergency standby power generator, the 33kW/41kW standby power surge capacity can cope with instantaneous load impact and sudden power demand increase. In commercial buildings, industrial workshops and public service places, it can complete power switching in a short time after grid power failure, ensure the normal operation of key equipment, minimize power outage losses, and meet the emergency power guarantee requirements of various scenarios.
In addition, this Yuchai 60Hz diesel generator fills the market gap of medium-power 60Hz standard gensets. With reliable YC4V55Z-D21 engine power, brushless self-excited power generation system and all-weather working performance, it has become a mainstream supporting product for engineering equipment supporting, foreign trade genset sales and power project supporting, and is one of the most cost-effective medium-small power diesel generators in the current market.
5. FAQ Common Questions & Answers
Q1: What is the actual usage difference between prime power and standby power of YC4V55Z-D21 generator set?
The 30kW/37.5kVA prime power is the long-term continuous working power of the unit, which supports 24-hour uninterrupted power generation and is suitable for daily main power supply scenarios. The 33kW/41kW standby power is only used for emergency peak load in case of power outage, allowing short-term overload operation, but cannot work continuously for a long time. In actual use, it is recommended that the long-term operating load be controlled at 70%-80% of the prime power, which can effectively prolong the service life of the generator set and reduce failure probability.
Q2: Is this 60Hz Yuchai generator set suitable for tropical high temperature and high altitude working conditions?
Yes, the unit has excellent all-weather adaptability. It adopts a closed-cycle water cooling system to ensure stable heat dissipation and continuous operation in high-temperature environments up to 55℃, adapting to tropical and subtropical high-temperature climates. At the same time, it can operate stably at an altitude of 2500 meters without power derating, and supports normal cold start at -25℃. The IP23 protection grade can resist outdoor dust and splashing water erosion, fully meeting the operation requirements of high altitude, high temperature, low temperature and other harsh working conditions.
Q3: What are the core advantages of brushless self-excited alternator of this genset compared with brushed models?
The brushless self-excited alternator equipped on YC4V55Z-D21 cancels the traditional carbon brush and slip ring structure. The biggest advantage is zero carbon brush wear, no need for regular replacement and maintenance, which greatly reduces daily maintenance time and cost. Matched with H-grade insulation and AVR voltage regulation system, it has stronger anti-interference ability, more stable voltage and frequency output, lower operation failure rate, and longer overall service life. It is more suitable for long-term standby and continuous power generation scenarios than brushed generators.

