Small Power Diesel Generator Set

The small power diesel generator sets of Kecheng made in China can be used as small power generation equipment to provide electricity for households, small shops or temporary operations in rural areas. This series covers a power range of 5 to 100 kilowatts, is compact in size, and is easy to move and install. Even non-professionals can operate it with ease. The unit is designed with a focus on operational economy. Its fuel consumption rate can be as low as 205 grams per kilowatt-hour, effectively controlling long-term usage costs. The product has passed the relevant national standard certifications. The core components come with a two-year warranty and have high start-up reliability. Whether used as a household emergency power source, backup power for small business premises, or power supply for rural infrastructure or outdoor temporary construction, this low-power unit can provide timely and stable power support at a high cost performance.

It covers three power ranges: micro (5-20KW), small (20-50KW), and medium and small (50-100KW)

Application scenarios (Exclusive adaptation for low power)

1. Family and community emergency scenarios (5-20KW)

• Applicable scenarios: Urban and rural households (lighting, backup for refrigerators and air conditioners during power outages), old communities (emergency elevators, public lighting), small nursing homes (basic medical equipment/domestic electricity)

• Core value: The micro unit (5-10KW) weighs no more than 300kg, can be placed on the balcony or in the garage, and is plug-and-play. When the mains power is interrupted for no more than 15 seconds, it will start up to prevent the food in the refrigerator from spoiling and the medical equipment for the elderly from being interrupted. Noise ≤75dB@7m (equivalent to a household washing machine), does not affect residents' rest; It can last for 8 to 12 hours on a full tank, meeting the emergency needs of a family for 1 to 2 days.

2. Small-scale commercial scenarios (20-50KW)

• Applicable scenarios: Convenience stores (refrigerators, cash register systems), small supermarkets (cold chain refrigeration, lighting), community clinics (infusion pumps, blood pressure monitors, vaccine refrigeration)

• Core value: The small unit (20-30KW) supports dual voltages of 220V/380V, capable of powering both cash registers (220V) and small freezers (380V). Equipped with basic ATS, it will automatically shut down after the mains power is restored, eliminating the need for manual supervision. The fuel consumption rate is 210-230g/(kW · h), with an average daily fuel consumption of no more than 50L, and the commercial operation cost is low.

3. Rural Infrastructure and Agricultural Scenarios (10-50KW)

• Applicable scenarios: Rural water conservancy stations (irrigation pumps), small farms (rice mills, feed mixers), remote villages (30-50 households combined power supply)

• Core value: Small units (10-30KW) are available in trailer-type (pickup towed), can be used on rural dirt roads, and can be quickly deployed during the irrigation season. Resistant to sandy and dusty environments (IP54 protection), the air intake is equipped with an 80-mesh dust filter to prevent engine blockage. Support low-quality diesel (sulfur content ≤0.5%), convenient for purchase in rural areas; It can last for 12 to 20 hours on a full tank, meeting the daily irrigation needs.

4. Temporary operations and outdoor scenarios (5-50KW)

• Applicable scenarios: Outdoor construction (road maintenance lighting, small cutting machines), events/activities (temporary lighting, audio equipment), field exploration (camping life electricity, small exploration instruments)

• Core value: The portable design of the micro unit (5-15KW) enables two people to carry it and it can be used in the wild without a fixed site. Small trailer-mounted units (20-50KW) with hydraulic support legs can operate stably even on uneven ground. It can be started at -20℃ low temperature (preheater is optional), suitable for complex outdoor environments. It can be powered on within 3 minutes to meet the rapid power supply requirements for temporary operations.

5. Special Emergency scenarios (5-100KW)

• Applicable scenarios: Post-disaster temporary resettlement sites (lighting, medical tents), communication base stations in remote areas (backup signal equipment), small gas stations (emergency power supply for fuel dispensers)

• Core value: Small and medium-sized units (50-100KW) can simultaneously supply power to 20 medical tents. With remote monitoring (4G optional), remote base stations do not need frequent inspections. Explosion-proof model (optional) is compatible with gas stations and meets safety standards. The spare parts are universal (compatible with common local engines) and easy to replace in emergency situations.

Product advantages (Core competitiveness in low power)

Technical parameters (5-100KW full power range)

Technical features (Exclusive design for low power)

1. Compact, portable and easy-to-deploy design

• Micro units (5-20KW) :

①The body adopts an aluminum alloy frame (30% lighter than steel), with a minimum size of 1200×600×800mm. It can be placed on the balcony or garage through the household entrance door (width ≥700mm) without taking up space.

② The terminal block is equipped with a "plug-and-play" plug (compatible with household sockets), eliminating the need for professional wiring. Just plug it in and it can be used.

③ No cooling water tank (air-cooled design), no need for water addition maintenance, suitable for household users (no need to worry about leakage).

• Small/medium and small-sized units (20-100KW) :

① Trailer-mounted design (20-50KW) : Equipped with a tow hook (compatible with pickup trucks), mechanical brakes (no rolling when parking), suitable for rural dirt roads and construction sites.

② One-click expansion of support legs (medium and small sizes) : Hydraulic support legs (adjustable height) can quickly level uneven ground without the need for additional wooden pads.

③ Modular fuel tank (optional) : For models with a capacity of 50-100KW, a 200L auxiliary fuel tank can be connected externally, extending the battery life to 40 hours and meeting the requirements for long-term temporary operations.

2. Simple operation and intelligent control

• Simplified operation:

① Micro unit: The panel only has three buttons: "Start - Run - Stop", and is equipped with LED indicator lights (voltage/oil level/fault), so even the elderly can learn to operate it.

② Small/medium and small-sized units: Upgrade the KCPLC-03 controller from Kecheng, featuring a Chinese display screen that shows voltage, current and fuel consumption in real time. When a fault occurs, a pop-up window will prompt the cause (such as "High water temperature, please check the coolant").

• Intelligent functions:

① Automatic start-stop (20-100KW) : Equipped with a basic ATS, it automatically starts when the mains power is interrupted and stops automatically after restoration. It can operate unattended.

② Mobile APP monitoring (50-100KW optional) : 4G network connection, remote viewing of operating status (such as "remaining oil can run for 8 hours"), and sending text message alerts in case of faults.

③ Regular self-inspection (for small and medium-sized units) : Automatically start and run for 5 minutes every week to check the status of the unit and prevent failure due to long-term standby.

3. Low consumption, energy saving and environmental compatibility

• Energy-saving design:

① Engine optimization: Select small-displacement models from Yuchai/Weichai (such as YC2108 with a 2.1L displacement), and the fuel consumption under low load is 10%-15% lower than that of similar models.

② Economic speed: The 20-100KW models are equipped with an "economy mode". When the load is ≤50%, the speed will automatically decrease (from 1500r/min to 1200r/min), and fuel consumption will be further reduced by 8%.

• Environmental adaptation

① Low-temperature start-up: For models ranging from 20 to 100KW, a preheater can be selected (start-up success rate at -20℃ ≥95%), ensuring normal operation even in northern winters.

② Dust-proof and water-proof: The entire series is IP54 protected, and the seams of the body are sealed with oil-resistant rubber, ensuring no leakage when used outdoors in rainy days.

③ Noise reduction design: For small and medium-sized models, a silent cover (double-layer steel plate + sound-absorbing cotton) can be selected, reducing noise from 85dB to 72dB, making it suitable for areas around residential areas and hospitals.

Power selection (Precise matching of low power)

1. Core Selecting basis

2.Power recommendation for typical scenarios

Usage Method (Exclusive operation for low power)

1.Pre-startup inspection (Core Steps)

2.Startup operation process

(1) Micro units (5-20KW, air-cooled)

1. Preparation: Place the unit in a well-ventilated area (at least 1 meter away from obstacles), plug in the load plug (such as a household socket), and confirm that the emergency stop button has been reset.

2. Startup: At low temperatures (≤5℃), press the "Preheat" button (30 seconds until the light goes out), then press the "Start" button and observe the rotational speed (1500r/min±50r/min) and voltage (220V/380V±5%).

3. Loading: After the voltage stabilizes, turn on the lighting/small household appliances (≤50% load) first. Wait for 5 minutes before turning on high-power devices (such as air conditioners) to avoid full load at one time.

(2) Small and medium-sized units (50-100KW, water-cooled + ATS)

1. Preparation: Check the coolant level, close the ATS switch (set to "automatic" mode), and ensure that the mains power connection is normal;

2. Startup: Press the "Startup" button on the controller, and the unit will automatically preheat (in a low-temperature environment) → Startup → After the voltage stabilizes, ATS will automatically switch to power supply for the unit.

3. Monitoring: View the current (not exceeding the rated value) and water temperature (≤95℃) through the controller screen. The operation data can be remotely observed via the mobile phone APP.

3. Operation monitoring and shutdown

• Key points of real-time monitoring

① Micro unit: Check the voltage (220V/380V) and oil pressure (≥0.2MPa) every 30 minutes, and listen to the engine sound (no abnormal noise).

② Small and medium-sized units: The controller automatically monitors water temperature (≤95℃) and fuel consumption. When the threshold is exceeded, it automatically alarms, eliminating the need for frequent manual checks.

• Exception handling:

① High water temperature (water-cooled model) : Shut down the machine to check the coolant. If it is insufficient, add antifreeze (in winter).

② Low voltage: Disconnect some unnecessary loads and check if the wiring is loose.

③ Failure to start: Check the battery (whether it is discharged) and fuel (whether it is used up). Charge/refuel if necessary.

• Shutdown process:

① Unloading: Disconnect all loads (unplug micro units and switch ATS to mains power for medium and small-sized units).

② Cooling: Run the micro units no-load for 3 minutes and the medium and small units for 5 minutes.

③ Shutdown: Press the "Stop" button. If the machine is to be shut down for a long time (≥1 week), turn off the battery switch and cover it with a dust cover.

Safety and Protection (Low Power Specifications)

1. Installation safety (focus on low power)

• Venue requirements:

① Place in a well-ventilated and open area (at least 5 meters away from flammable materials). The micro unit should not be placed in a closed space (such as a bedroom) to prevent poisoning from exhaust gases.

② The ground should be level (for micro units, a cement platform can be placed, and for medium and small-sized units, the support legs should be leveled) to prevent vibration and displacement during operation.

③When used outdoors, a simple awning should be set up (to prevent direct rain from hitting the unit), but ventilation openings should be left (for heat dissipation).

• Electrical safety:

① Grounding protection: All models must be grounded (driven into the ground with 1.5-meter-long galvanized Angle steel, grounding resistance ≤4Ω) to prevent electric shock.

② Wiring standards: For micro units, use a 16A household socket (with a matching plug). For medium and small-sized units, press the wiring tightly with a copper nose. Do not touch the live terminals with your hands.

③ Child protection: Fences (with a height of no less than 1 meter) should be set up around the unit, and signs reading "No Children Approaching" should be posted.

• Fire protection configuration:

① One 4kg ABC dry powder fire extinguisher should be equipped (placed within 1 meter beside the unit). Smoking and the use of open flames are strictly prohibited around the unit.

② Fuel storage: Use a metal fuel tank (avoid deformation of plastic fuel tanks due to exposure to direct sunlight), keep it at least 3 meters away from the unit, and stop the machine when refueling.

2. Operational safety (Focus on low power)

• Personnel requirements:

①Operators must read the operation manual, master the "start-stop" process, and are strictly prohibited from operating while drunk or fatigued.

② Do not open the protective net during operation (to avoid touching rotating parts with hands), and do not touch high-temperature parts (such as exhaust pipes, with a temperature of ≥300℃).

• Operating contraindications:

① Overloading operation is prohibited (such as a 5KW unit driving a 10KW device) to prevent engine overload damage.

② It is strictly prohibited to add fuel or engine oil when the unit is in operation. The operation should be carried out after the machine has been shut down.

③ Do not rinse the unit with water (even if it is IP54 protected). Wipe it clean with a dry cloth.

④ Do not use outdoors during thunderstorms. Disconnect the power supply to avoid lightning strikes.

• Emergency response:

① Engine fire: Immediately press the "Emergency stop" button, close the fuel valve, and use a dry powder fire extinguisher to put out the fire (water is prohibited).

② Electric shock: Disconnect the power supply, push the person who has been electrocuted away with a dry wooden stick, and call the emergency number if necessary.

③ Abnormal noise: Stop the machine and check the fan/belt (if there is any foreign object stuck). If you have no experience, contact after-sales service.

3. Maintain safety (focus on low power)

• Preparations before maintenance:

① Disconnect the power supply of the unit, turn off the battery switch, and hang a warning sign that says "Under maintenance, do not start".

② Prepare the tools (wrenches, brushes, spare filter elements). The maintenance of micro units does not require professional tools (household wrenches are sufficient).

• Core maintenance projects:

① Daily cleaning: Clean the radiator/dust-proof net (for micro units) with a brush every week to prevent dust blockage.

② Filter element replacement: Replace the oil filter/fuel filter every 500 to 800 hours (for micro units, it can be replaced by yourself, and the parts are universal).

③ Engine oil change: Change the engine oil every 600 to 1000 hours (use 15W-40 diesel engine oil). Pour the old oil into a dedicated container (do not discharge it at will).

• Post-maintenance testing:

After the maintenance is completed, start the unit and run it no-load for 5 minutes to check if the voltage and water temperature are normal. Load 50% and run it for 10 minutes. After confirming there are no abnormalities, put it into use.

Maintenance and Servicing Cycle Table (Exclusive for Low Power)