Silent Diesel Generator set

The silent diesel generator set of Kecheng from China is a power generation equipment that combines power supply reliability and low-noise operation. This series of products covers a power range of 20KW to 2000KW. They adopt a gradient silent system and a full environmental protection structure, which can control the operating noise within 65 to 80 decibels at a distance of 10 meters, meeting the noise standards of most factory boundaries. The unit is equipped with an independently developed intelligent controller, supporting multi-unit parallel operation and high-voltage monitoring, and is convenient for operation and management. Its core components come with a quality guarantee of two years or more than 8,000 hours. The greater the power, the more comprehensive the warranty. Whether it is for rural domestic power supply, backup for commercial buildings, or main or emergency needs in industrial production, this soundproof box unit can provide stable power while effectively reducing noise interference to the surrounding environment. It is a widely adaptable and practical power supply solution.

The set cover three major power ranges:

Application scenarios (Exclusive adaptation for the full power range)

1. Small and medium-sized civilian scenarios (20-200 kW)

• Applicable scenarios: Centralized power supply in rural areas (10-30 households for lighting/appliances), old communities (emergency elevators/water pumps), small homestays (air conditioning/hot water in guest rooms)

• Core values: Noise ≤70dB@10 meters (daily conversation volume), no complaints of disturbance to residents; Optional trailer type (pickup towing) with power ranging from 20 to 50KW, flexible for relocation. It is equipped with a 100-300L fuel tank and can operate at full load for 8-15 hours, meeting the short-term emergency needs of civilian use.

2. Medium and large commercial scenarios (200-800KW)

• Applicable scenarios: Large supermarkets (cold chain clusters/escalators), high-star hotels (international conference centers/guest room areas), tertiary hospitals (outpatient buildings/laboratory departments)

• Core value: Noise ≤75dB@10 meters, in compliance with commercial noise limits; Supports 24-hour continuous operation (with an internal 500-1000L fuel tank and an external oil source); It can be linked with business intelligence systems for remote monitoring and operation and maintenance, reducing labor costs.

3. Large-scale industrial scenarios (800-2000KW)

• Applicable scenarios: Industrial parks (main and backup power supply for production lines/circulating water pumps), large data centers (10kV high-voltage distribution/server clusters), mine auxiliary (ventilators/drainage pumps, explosion-proof type)

• Core value: Withstand 3 times the rated starting current (suitable for industrial heavy loads); The high-voltage model complies with the GB/T 13540 standard and is directly connected to the industrial power grid. Containerized integration shortens the installation period by 50%, meeting the rapid production start-up demands of industries.

4. Public Emergency and Infrastructure Scenarios (Full Power Segment)

• Applicable scenarios: Urban waterlogging drainage (20-100KW trailer type), post-disaster reconstruction (200-500KW temporary power supply), highway service areas (100-300KW charging piles)

• Core value: Small models can be put into use within 2 hours of arrival, while large models support parallel operation of multiple units (such as two 1000KW units working in tandem). IP54-IP65 protection, suitable for heavy rain and dusty environments; It can be started at -30℃ low temperature (with an optional

preheater), covering all weather emergencies.

5. Remote and Special Scenarios (Full power range)

• Applicable scenarios: Mountainous area base stations (50-200KW backup power supply), plateau mining areas (500-1000KW plateau modification), island fishing villages (200-500KW seawater desalination power supply)

• Core value: For high-altitude models at an altitude of 5,000 meters, the power correction factor is ≥0.85. The fuel consumption is as low as 195g/(kW · h) for large models, and the long-term operating cost is controllable. Supports solar-assisted charging (for small models) to extend battery life.

Product advantages (Core Competitiveness across the entire power range)

Technical parameters (Full power range: 20-2000KW)

Technical features (Full power range gradient design)

1. Gradient silent system (adapted to power)

• Small section (20-200KW) : "Double-layer cold-rolled steel plate (outer layer 2mm/inner layer 1.5mm) +50mm high-density sound-absorbing cotton (density 48kg/m³)", the air inlet is equipped with a math-type sound-absorbing hole, and the air outlet is fitted with a small impedance muffler, with a noise reduction of ≥35dB, balancing quietness and portability.

• Medium and large sections (200-800KW) : "Three-layer composite structure (outer 2.5mm steel plate + middle 80mm sound-absorbing cotton + inner 2mm damping plate) + independent heat dissipation chamber", to prevent the noise of the cooling fan from leaking out, the volume of the muffler is increased to 100L, and the noise reduction is ≥40dB.

• Large section (800-2000KW) : Container-type silent (80mm rock wool sandwich panel), air intake/exhaust ports are separated into compartments, exhaust pipe is equipped with a large muffler (noise reduction ≥45dB), 100mm sound-absorbing cotton is pasted inside the box, vibration transmission rate ≤5% (spring vibration isolator + rubber pad).

2. Full-power power adaptation

• Small section: The engine adopts a small-displacement high-pressure common rail type (fuel injection pressure 1600bar), suitable for short-term emergency use (no more than 5 starts per day). The generator is a brushless self-excited type, with a voltage establishment time of no more than 0.5 seconds, suitable for civilian precision equipment.

• Medium and large segments: The engine is upgraded to a turbocharged intercooling system (with an intake volume increase of 30%), providing a large torque at low speeds (≥800N · m at 1500r/min), suitable for continuous operation (≥8 hours per day). The generator supports low-voltage/high-voltage switching, meeting the demands of various commercial scenarios.

• Large section: The engine is a heavy-duty model (cylinder bore ≥150mm), with reinforced pistons (wear-resistant alloy + chrome plating) and water-cooled exhaust manifolds, capable of withstanding industrial heavy loads. The generator is of high-voltage type (6kV/10kV), with a short-circuit withstand time of ≥2 seconds, and is compatible with industrial power grids.

3. Intelligent Control System (KCPLC-05 Full Power Version)

• Core functions:

① Full parameter monitoring: The small section displays basic parameters, while the medium and large sections add high-voltage parameters and multi-machine parallel parameters.

② Multi-unit linkage: 200-2000KW supports 8 units in parallel, with a load balancing deviation of ≤5% (for example, 2 units of 1000KW with a total load of 1800KW, the deviation of a single unit is ≤45KW).

③ High-voltage protection: The large section is equipped with triple protection of "overvoltage, undervoltage and ground fault", meeting the high-voltage distribution standards.

④ Remote operation and maintenance: The full power segment supports 4G/WiFi networking, and the large segment can be connected to the industrial DCS system to achieve unattended operation.

4. Environmental Protection and Deployment design

• Protection gradient: Small segment IP54, medium and large segment IP54 (explosion-proof IP65 is optional), large segment IP65 (explosion-proof model Ex dⅡB T4), all have passed the salt spray test for ≥500 hours;

• Deployment method: For small sections of 20-50KW, trailer-mounted type (traction hook + support leg) is available. For medium and large sections, fixed type or container type is available. For large sections, container type is standard (suitable for road transportation and can be put into use within 12 hours of arrival).

Power selection (precise matching across all power ranges)

1.Core Selecting basis

2.Power recommendation for typical scenarios

Usage method (Full power range step-by-step operation)

1.Pre-startup inspection (differentiated by power)

2.Startup operation (power division process)

(1) 20-200KW (manual/automatic)

1. Manual: Open the fuel valve → Controller "Manual" → Preheat for 30 seconds → Start → Idle for 3 minutes → Close the switch → Load ≤50%.

2. Automatic: ATS "Automatic" → Automatically starts when the mains power is interrupted → Loads (no intervention required).

(2) 200-800KW (dual voltage/multiple units)

1. Single unit: Confirm voltage range → Preheat for 60 seconds → Start → Check high-voltage insulation → Close high-voltage switch → Load ≤30%;

2. Multi-unit: Host startup → Slave startup → "parallel" mode → Automatic load distribution → Loading to demand.

(3) 800-2000KW (High voltage/Heavy-duty)

1. High-voltage preparation: Open the "grounding switch" of the switch cabinet → Close the "disconnector" → Check for no electricity.

2. Startup: Hydraulic startup → Speed 1500r/min→ Check oil pressure/water temperature → Close high-voltage circuit breaker → Stepwise loading (20%→50%→80%→100%).

3. Operation monitoring and shutdown

• Monitoring focus: For small sections, pay attention to noise values; for medium and large sections, focus on high-voltage parameters and parallel balancing.

• Shutdown process:

① 20-200KW: Unload → switch off → Idle for 5 minutes → shut down → Close the fuel valve.

② 800-2000KW: Step-by-step unloading → breaking the high-voltage circuit breaker → closing the "grounding switch" → no-load for 10 minutes → shutdown.

Safety and Protection (Grading Specifications for Full Power Segments)

1.Installation safety (classified by power)

2. Operational Safety (Key Risk Prevention and Control

• Small section: Do not open the silent cover during operation. Stop the machine for cooling when refueling.

• Large section: For high-voltage operation, two people should cooperate (insulating clothing + insulating tools). It is strictly prohibited to pull the disconnector under load.

• Emergency response: When high-voltage leakage occurs, disconnect the upper-level power supply → Operate with insulated equipment → Troubleshoot the fault. Unprotected contact is strictly prohibited.

3. Maintain safety (Full power range cycle difference)

•20-200KW: Regularly clean the filter screen, check the sound-absorbing cotton, and change the engine oil every 500 hours.

For 800-2000KW: Insulation of high-voltage systems is tested every quarter, and relay protection is calibrated annually. This is carried out by Kecheng after-sales service.

Maintenance Cycle Table (Exclusive for Full Power Range)