10–30 kW diesel generator sets are compact, medium-scale power solutions widely utilized in applications such as residential backup power, telecommunication base stations, farms, commercial buildings, workshops, and industrial backup power systems.
10–30 kW Diesel Generator Set Manufacturer and Supplier
Key components include the diesel engine, alternator, controller, cooling system, base frame, and an optional soundproof enclosure.



What are 10–30 kW Generator Set?
10–30 kW diesel generator set is a compact power generation system.
We manufacture and assemble diesel generator sets powered by Cummins, Perkins, Kubota, Yanmar, Weichai, Baudouin, Ricardo, and Lovol engines, distributing our products to customers worldwide.
These compact generator sets are widely utilized for residential backup power, telecommunication base stations, farms, retail shops, construction sites, and small-scale industrial projects.
We offer silent generators, open-frame generators, trailer-mounted generators, and backup power systems equipped with Automatic Transfer Switches (ATS), along with comprehensive global export support.
Product Model Specifications and Detailed Description
Generator Set Model:
Cummins Models: 4B3.9-G1, 4BT3.9-G1, 4BTA3.9-G2
Features: High reliability, robust continuous operation capability, comprehensive spare parts supply.
Perkins Models: 404D-22G, 1103A-33G, 403D-15G
Features: Low noise, compact structure, high fuel efficiency.
Kubota Models: V1505, D1703, V2203
Features: Ultra-low fuel consumption, compact structure, long service life.
Yanmar Models: 3TNV88, 4TNV84, 4TNV98
Features: Incorporates precision Japanese technology, excellent cold-start performance, low emissions.
Weichai Models: WP2.3D, WP2.5D
Features: High cost-effectiveness, stable performance, durable and long-lasting.
Ricardo Models: K4100D, ZH4105
Features: Economical and affordable, easy to maintain, excellent choice for backup power.
Power Range: 10kW / 15kW / 20kW / 25kW / 30kW
Frequency: 50Hz / 60Hz
Voltage: 110V–480V
Speed: 1500 / 1800 rpm
Cooling Method: Water-cooled
Starting Method: Electric start
Engine Brands:
Cummins: Exceptional durability and global support.
Perkins: Quiet operation and excellent fuel economy.
Kubota: Compact design and ultra-efficiency.
Yanmar: Reliable and low-emission.
Weichai: Powerful performance.
Ricardo: An economical backup power solution.
Features of Different Models:
Silent Generators: Low noise, weather-resistant, suitable for residential and commercial areas.
Open-Frame Generators: Lower cost, easier maintenance, better suited for industrial environments.
Typical Fuel Consumption:
10kW: 2.0–3.5 liters/hour
20kW: 3.5–5.5 liters/hour
30kW: 5.0–7.5 liters/hour
Fuel consumption depends on the engine brand, load rate, and maintenance condition.
Alternator Brands: Stamford, Leroy Somer, Mecc Alte, Marathon
Controller Brands: Deep Sea, SmartGen, ComAp, Datakom
Functions: Automatic start/stop, overload protection, remote monitoring
Custom Features:
ATS System: Automatically starts the generator during a power outage.
Parallel System: Allows multiple generators to work in tandem to meet the demands of large-scale projects.
Advantages of ELECPRIME 10–30 kW Generator Sets
It can be applied to home backup power, telecommunications base stations, agricultural irrigation systems, shops and offices, construction sites, small factories, hotels and clinics, outdoor activities, and more.
1. Low Fuel Consumption
5. Long Service Life
2. Stable Voltage Output
6. Compatible with Automatic Transfer Switches (ATS)
3. Compact Structure
7. Optional Silent Enclosure
4. Easy Maintenance
8. Global Spare Parts Support

Custom Solutions
1. Voltage Customization
2. Frequency Customization
3. OEM Customization
4. Silent Enclosure Customization
5. Trailer-Mounted Generators
6. Fuel Tank Customization
7. Controller Customization



Manufacturing Process
1. Engine Inspection
2. Generator Matching
3. Baseframe Welding
4. Wiring Harness Installation
5. Controller Configuration
6. Fuel System Installation
7. Load Testing
8. Final Quality Inspection

ELECPRIME Generator Set Testing Standards
1. Full-Load Test
2. Voltage Stability Test
3. Noise Test
4. Automatic Transfer Switch (ATS) Test
5. Fuel Leak Inspection
6. Emergency Shutdown Test

FAQ
What equipment can a 20kW generator power?
It can power air conditioners, water pumps, lighting systems, office equipment, and small-scale industrial machinery.
Do your generators support Automatic Transfer Switch (ATS) systems?
Yes. We offer ATS systems to enable automatic backup operation.
Which generator brand is the best?
Cummins and Perkins are widely popular for their exceptional reliability, while Weichai and Ricardo represent excellent value-for-money options.
Can a generator run continuously?
Yes. Industrial-grade models can operate continuously for extended periods, provided they undergo proper maintenance.
What is the exact fuel consumption rate of a 20kW diesel generator set at various load levels?
Fuel consumption is directly correlated with the specific engine model installed and the current electrical demand. For a standard 20kW diesel generator equipped with a premium-brand engine, the average fuel consumption at a typical 75% operating load is between 4.8 and 5.4 liters per hour. At a continuous 100% load, fuel consumption is approximately 6.5 to 7.2 liters per hour. Detailed fuel consumption curves specific to a particular configuration can be obtained from our engineering department.
Can a 30kW generator set easily handle the starting load of direct-drive induction motors?
Yes, provided that the starting surge current does not exceed the generator’s standby capacity (kVA). A standard 30kW (37.5 kVA) generator set—equipped with an advanced brushless alternator and a reliable Automatic Voltage Regulator (AVR)—can withstand instantaneous surge currents of up to 300% of its rated capacity for durations of up to 10 seconds. For applications involving high-power motors or air compressors, we recommend selecting a generator featuring a Permanent Magnet Generator (PMG) excitation circuit configuration to maximize surge-handling capability.
What are the specific installation requirements for integrating an Automatic Transfer Switch (ATS) with a 15kW silent generator?
Our 15kW silent generators feature an integrated digital control system and come pre-fitted with dedicated terminals for ATS communication wiring. During installation, a multi-core signal control cable must be routed alongside the main power conduit, connecting the generator’s terminal box to the external ATS panel. When the main grid voltage drops below a preset threshold (typically 90% of the rated voltage), the controller initiates a 3-to-5-second delay cycle to automatically start the engine, synchronize the voltage phase, and signal the internal contactor to safely switch the load.
What standard maintenance schedules must 10–30 kW industrial generators adhere to in order to maintain operational compliance?
To ensure warranty validity and optimal field performance, please follow the structured maintenance program outlined below:
• Break-in Period Maintenance: Perform the initial engine oil and primary filter change after 50 hours of field operation.
• Routine Maintenance: Conduct a comprehensive inspection every 250 to 500 operating hours or every 6 months. This includes replacing the lubricating oil, renewing the primary fuel filter, and testing the integrity of the air intake filter.
• Annual Parameter Check: Flush the engine cooling system, verify the alternator winding resistance, and perform a clean load test to remove internal carbon deposits.
Why Choose Our Factory?
ELECPRIME is a specialized manufacturer of diesel generators with years of deep industry expertise and a solid, reliable foundation. We implement rigorous quality control standards throughout the entire production process to ensure uncompromising product quality. We offer flexible OEM and ODM customization services to meet a diverse range of procurement needs.
Leveraging a mature supply chain system, we ensure efficient and rapid delivery. Our products are exported worldwide, backed by extensive global export experience. Supported by a professional technical team, we provide comprehensive technical support from start to finish. Our direct-from-factory supply model eliminates intermediaries, offering exceptional value for money. We welcome your inquiries.

