

In industrial production, engineering construction, and commercial office settings, a stable power supply is crucial for ensuring continuous operation. The 50kVA diesel generator, as a core power supply device in the small to medium power range, has become the preferred choice for both emergency and regular power supply due to its advantages of “power adaptability, stability, durability, energy saving, and quiet operation.” Common names for the 50kVA diesel generator include 50kW diesel generator set, 50KVA diesel generator, and small to medium-sized diesel generator; it is simply referred to as a 50kW generator set in the industry. Its core function is to drive a generator through a diesel engine to produce stable electrical energy. It can serve as an emergency backup power source to cope with sudden power outages or as a regular power source, suitable for scenarios without grid coverage or with unstable grids. Its stable output power can meet the power needs of small to medium loads and is widely used in various fields such as industry, engineering, and commerce. Compared with other generators in the same power range, its diesel drive efficiency is high, its range is long, it is adaptable to complex working conditions, and it is easy to maintain, offering significant cost-effectiveness advantages. Of course, we have a full range of different models of generator sets; please feel free to contact us with any needs.
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YG 50kva Diesel Generator Technical Parameter
| GENSET MODEL | YG-50/S |
| Prime power (kW/kVA) | 40/50 |
| Standby power (kW/kVA) | 44/55 |
| Frequency (Hz) | 50 |
| Voltage (V) | 220/380,230/400,240/415 |
| Power factor | 0.8 |
| Ambient temperature (°C) | 40 |
| Altitude (m) | 1000 |
| Engine Model | 4BTA3.9-G2 |
| Rated Power (kW) | 50 |
| No. of cylinders & configuration | In-Line 4 cylinders |
| Method of operation | 4 Stroke |
| Speed regulation | Electronic Governor |
| Starting system | DC 12V Electronic start |
| Cooling method | Closed-circuit cooling system |
| Total displacement (L) | 3.9 |
| Compression ratio | 18.0:01 |
| Bore×Stroke (mm) | 102*120 |
| 100% Load fuel consumption (L/h) | 14.1 |
| Number of Phase | Three Phase |
| Power Factor | 0.8 |
| Protection Grade | IP21/IP23 |
| Winding/ Pitch | 100% Copper 2/3 Pitch |
| Cooling Fan | Cast alloy aluminum |
| Exciter Type | Brushless, Self-Exciting |
| Insulation Class, Temperature Rise | H/H |
| Telephone Influence Factor( TIF) | TIF <5% / THF <2% |
| Total Harmonic TGH/THC | <1.5% no load / <5% on load |
| Voltage Regulation, Steady State | ≤+-1% |
| Sustained Short-Circuit Current | 300% (3in):10s |
| Control System | Smartgen HGM6110N |
| ATS | Optional |
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7 Significant Advantages of the YG 50kva Diesel Generator
- Stable Power and Precise Supply: Rated power of 50KVA, standby power of 55KVA, voltage regulation accuracy ≤±1%, frequency regulation accuracy ≤±0.5%, ensuring stable power generation. It is suitable for loads requiring high power quality, such as precision instruments and production equipment, outperforming ordinary generators in the same power range.
- Energy-Saving, Quiet, and Environmentally Friendly: Uses a high-efficiency diesel engine with a fuel consumption of only 10-12L per 100 kilometers, more than 10% lower than similar products; a double-layer sound insulation structure + high-efficiency muffler keeps noise levels between 75-85dB, without significant noise pollution, making it suitable for noise-sensitive environments such as commercial offices and residential areas.
- Intelligent Control, Convenient and Worry-Free: Equipped with a brilliant control system, supporting both manual and automatic start modes. In case of power failure, it can start automatically (start time ≤15 seconds), eliminating the need for manual supervision; the LCD instrument panel monitors operating parameters in real time, and automatically alarms and shuts down in case of malfunction, preventing equipment damage. It is easy to operate.
- Industrial-Grade Durability, Wide Applicability: Core components use well-known brand parts, and the diesel engine undergoes rigorous aging tests, with a service life of over 10,000 hours; the protection level reaches IP23, resistant to dust and light rain, suitable for complex working conditions such as outdoor, high temperature, and humid environments, possessing the industrial-grade durability of an industrial diesel generator.
- Full Power Range Synergy, Flexible Expansion: Can be used in conjunction with YG series 100 kva generators and 500kw generators to meet the power needs of different power loads, suitable for large-scale projects and industrial parks; it also supports parallel operation of multiple 50kva diesel generators to expand power capacity.
- Convenient Maintenance, Controllable Costs: Key components are reasonably arranged, and easily maintained parts such as oil and fuel filling ports and filters are easy to access; wear parts are highly interchangeable and can be quickly replaced, resulting in low maintenance costs; equipped with a fault self-diagnosis function for quick troubleshooting.
- Safe and reliable, with comprehensive protection: Equipped with multiple safety devices, including overload protection, short-circuit protection, low oil pressure protection, and high water temperature protection to prevent damage to the electrical load and generator; the protective casing features a grounding design to avoid accidents of leakage and ensure the safety of operators and equipment.
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Application Areas of YG Generator Sets
- Industrial Production Scenarios: Serving as emergency backup power for small and medium-sized factories and workshops, responding to sudden power outages and ensuring the continuous operation of production lines and precision instruments; also serving as a primary power source for remote factory areas, replacing unstable power grids, and adaptable to industrial-grade power supply needs.
- Engineering Construction Scenarios: Used for on-site power supply in outdoor projects such as roads, bridges, and buildings, providing stable power to tower cranes, welding machines, lighting equipment, etc., suitable for construction sites without grid coverage, and can work in conjunction with 100 kVA generators to meet larger load demands.
- Commercial Office Scenarios: Serving as emergency backup power for office buildings, shopping malls, hotels, and supermarkets, quickly starting up during sudden power outages to ensure the normal operation of elevators, air conditioning, lighting, and POS equipment, avoiding commercial losses.
- Healthcare Scenarios: Used for emergency power supply in community hospitals, clinics, and small medical institutions, providing stable power to medical equipment, emergency equipment, and refrigeration equipment, ensuring the normal operation of medical work and avoiding disruption to diagnosis and treatment due to power outages.
- Agricultural and Livestock Scenarios: Provides power to livestock farms and planting bases, supplying energy to ventilation, irrigation, temperature control, and feed processing equipment. Suitable for remote agricultural areas with no or unstable power grids.
- Municipal Emergency Scenarios: Provides on-site power for emergency operations such as municipal repairs, road rescue, and flood and drought relief. Provides stable power to repair equipment, lighting, and communication equipment, ensuring efficient emergency operations.
- Cultural and Sports Events: Provides power for temporary events such as outdoor performances, sporting events, and exhibitions. Provides power to audio equipment, lighting, and displays, meeting the flexible power needs of temporary events.
- Power Supply in Remote Areas: Provides a common power supply for mountainous areas, rural areas, mining areas, and other areas without power grid coverage or with unstable power grids. Provides stable power for residential use, small-scale processing, and communication base stations. Can be equipped with a 500kW generator for large-scale power supply as needed.
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Quick Frequently Asked Questions About YG Generator Sets
A: It can power electrical equipment with a total power of ≤40kW, including precision instruments, tower cranes, welding machines, lighting, air conditioners, etc., suitable for small to medium-sized loads; it can be connected in parallel with a 100kVA generator to expand power supply capacity and power larger loads.
A: We cover the full power range, including 50kVA, 100kVA, and 500kW, and support customization. We can customize the fuel tank, noise reduction, starting method, protection level, etc., according to the electrical load and scenario requirements to meet special power supply needs.
A: Our units are designed to support 24-hour continuous operation, but to extend their lifespan, we recommend checking the oil and water levels every 8-12 hours of operation.
A: The main differences lie in noise levels and environmental protection. Silent generator sets have a casing with sound-absorbing material, resulting in lower noise and better rain and dust protection, but they are more expensive and have stricter heat dissipation requirements. Open-frame generator sets have a simpler structure, better heat dissipation, and lower cost, making them suitable for applications where noise is not a primary concern or where installation in a separate machine room is required.
A: Yes, they can work together. Both are YG series products with strong compatibility. They can be paired with different power units to operate in conjunction with the generator set, meeting the tiered power supply needs of large-scale applications and improving power supply flexibility and stability.


