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Precautions for Using Automatic Diesel Generators in Winter

Time：2025-11-28 09:15:33 Edit：HuaQuan Traffic Index：20

An automatic diesel generator is a power generation device that operates unattended through a control system. It is suitable for places with high requirements for power reliability, such as data centers and hospitals. During the cold winter months, there are several considerations to keep in mind when using an automatic diesel generator to ensure its normal and stable operation.

I. Advantages of Automatic Diesel Generators:
As a type of power generation equipment, automatic diesel generators have the advantages of high efficiency and energy savings, rapid response, high automation, and stability and reliability.

II. Huaquan Power is a Professional Automatic Diesel Generator Manufacturer in China
Huaquan Power is a professional automatic diesel generator manufacturer in China, established in 2010, with its headquarters located in Weifang, Shandong. The company focuses on the research, production, and sales of power generation equipment.
Huaquan Power uses branded engines paired with self-developed generators and can provide different configurations according to customer needs, such as mobile trailers, silent boxes, and containers. Its products are widely used in data centers, emergency mining operations, medical systems, communication markets, petroleum systems, national banks, and large-scale industries.
Huaquan Power automatic diesel generators come with automatic start upon power outage, one-button start/stop, and real-time parameter monitoring (oil pressure, water temperature, etc.). Remote operation, fault diagnosis, and early warning can be achieved via mobile app or computer, reducing downtime.
Huaquan Power offers customized services, supporting on-demand customization, and provides one-stop solutions from design and commissioning to maintenance. With 24-hour power supply assurance, it has established regular follow-up, inspection, and technical support systems to ensure stable operation of the generators.

III. Introduction to the Advantages of Automatic Diesel Generators:
1. High Efficiency and Energy Saving
Automatic diesel generators use combustion technology with high thermal efficiency.
2. Fast Response
An automatic diesel generator can start in just a few seconds and reach full load within 60 seconds in an emergency. Equipped with a mechanical speed regulation system, it automatically maintains stable speed during load fluctuations, ensuring smooth voltage output.
3. High Degree of Automation
It can perform automatic start and stop, grid connection, load shedding, and shutdown, supporting remote monitoring and fault warning. The intelligent control system can monitor parameters such as oil pressure and water temperature in real time and automatically handle abnormalities.
4. Stable and Reliable
Designed to operate at 90% of rated power, it can adapt to harsh environments. Using copper wire motors and thickened steel frames, it is high-temperature resistant, aging-resistant, and has a long service life.
5. Convenient Maintenance of Automatic Diesel Generators
Modular design simplifies maintenance procedures, with only regular inspections required. The air-cooling system does not require coolant, reducing maintenance costs. Fault diagnosis functions allow for quick problem localization.

IV. Possible Effects of Winter on the Use of Automatic Diesel Generators
1. Difficulty in Starting Automatic Diesel Generators
Low temperatures increase oil viscosity and reduce battery capacity, leading to lower starting speeds. Insufficient compressed air temperature and poor diesel atomization make ignition difficult.
2. Power Reduction
Mechanical friction resistance increases, fuel combustion is incomplete, and output power may decrease by 8%-10%. After a cold start, idling is required to preheat the engine to avoid "cold brittleness" damage.
3. Diesel Fuel and Engine Oil Issues in Automatic Diesel Generators
Diesel tends to gel (requiring -10# or lower grade), engine oil has poor flow, necessitating the replacement with low-viscosity oil and avoiding open flame heating.
4. Corrosion and Wear
Water vapor condensation inside the cylinders reacts with combustion products to form strong corrosive agents, accelerating cylinder wall wear. Frequent cold starts can shorten the equipment's lifespan.

V. Precautions for Using Automatic Diesel Generators in Winter
1. Fuel and Oil Management for Automatic Diesel Generators
Diesel Selection: Use antifreeze diesel with a pour point lower than the local minimum temperature (such as -10# or -35#) to prevent fuel supply interruptions caused by low-temperature solidification.
Oil Change: Switch to low-viscosity engine oil (such as SAE 5W-30) to ensure smooth operation of the lubrication system during low-temperature starts.
Fuel System Maintenance: Regularly inspect diesel filters to prevent water condensation from freezing and blocking the fuel line.
2. Starting and Preheating Operations for Automatic Diesel Generators
Preheating Preparation:
For models equipped with electronic glow plugs, preheat by powering for about 10 seconds before starting;
For models without a preheating function, the engine body can be preheated with hot water or steam.
Post-Start Operations:
Run at no-load: After starting a cold engine, let it idle for 3–5 minutes until the water temperature rises above 40°C before gradually applying load.
Avoid Rapid Loading: Do not operate under high power load before the water temperature reaches 60°C.
3. Anti-Freeze Measures for Automatic Diesel Generators
Cooling System of Automatic Diesel Generators:
Fill with ethylene glycol antifreeze with a freezing point 5–10°C lower than the local minimum temperature;
If antifreeze is not used, drain the cooling water after shutdown.
Battery Maintenance:
Keep the battery fully charged and apply petroleum jelly on the terminals to prevent oxidation;
In extremely cold areas, it is recommended to equip the battery with an insulating cover or heating device.
4. Safety and Ventilation Requirements for Automatic Diesel Generators
Ventilation Assurance: Enclosed spaces should ensure more than 15 air changes per hour to prevent carbon monoxide accumulation (safe concentration <50ppm).
Prohibited Actions: Do not use open flames to heat the fuel tank or engine to avoid explosion risks.
5. Long-Term Shutdown Protection for Automatic Diesel Generators
Drain residual water from the fuel system and cover with a dust-proof cover;
Start the generator once a month at no-load operation for about 30 minutes.

VI. Huaquan Service Advantages
1. Pre-sales Customized Consultation:
Provides full-process product selection guidance, supports parameter customization adjustments, and ensures precise matching of customer needs.
The technical team is deeply involved in requirements analysis to solve special scenario adaptation issues.
2. Mid-sales Implementation Support:
Professional personnel for on-site installation and debugging, hands-on operational training.
Various configurations such as mobile trailers and containers are available, suitable for complex environments like oil fields and offshore platforms.
3. After-sales Response Mechanism:
300 service outlets nationwide, providing round-the-clock technical support.
Regular follow-ups to collect user feedback and optimize service processes.

VII. Main Application Areas of Automatic Diesel Generators
1. Industrial and Mining Enterprises: Automatic diesel generators can serve as backup power for production lines and safety systems, preventing production interruptions and safety accidents.
2. Commercial Buildings and Hotels: Provide power to elevators, fire systems, central air conditioning, and basic lighting during municipal power outages.
3. Construction Sites: Serve as the main power source for construction equipment before official power supply is connected.
4. Municipal Water Services: Automatic diesel generators ensure continuous operation of pump stations in water supply plants and sewage treatment plants.
5. Schools and Communities: Serve as backup power to maintain basic living order in emergencies.
6. Emergency Rescue: Provide power to rescue command centers, temporary medical points, and shelters after natural disasters.
7. Medical Institutions: Ensure continuous operation of life support systems, lighting, and critical medical equipment in hospitals and operating rooms.
8. Data Centers and Communication Hubs: Automatic diesel generators provide uninterrupted power to servers and network equipment, ensuring data security and communication continuity.
9. Government and Financial Centers: Ensure normal operation of government command departments, bank data centers, stock exchanges, and other facilities in emergencies.
For the different fields of the above-mentioned automatic diesel generator applications, Huaquan Power can provide customized solutions. We hope the above introduction can serve as a reference for users.
More information about Automatic diesel generator:http://www.wfcyjz.com/