How to Commission Diesel Generator Before Use?     Commissioning diesel generator before use is crucial. It helps identify potential safety hazards, ensures secure wiring connections to prevent short circuits or electric leaks, and tests protective devices to promptly cut off power in case of anomalies, safeguarding both personnel and equipment. Proper commissioning also optimizes operating conditions, minimizes component wear, extends the generator’s lifespan, and ensures compliance with industry regulations and standards.   Important Notice:   Please be aware that all generators imported from us or overseas suppliers are shipped with liquids (oil, coolant, and diesel) drained out, in compliance with shipping company regulations. Therefore, before using the generator for the first time, you must refill it with the appropriate amounts of oil, coolant, and diesel.   1. No-Load Testing Before testing under load, newly purchased diesel generators should unde...

Cummins vs. Weichai: Which Diesel Engine Is Right for You?     When choosing a diesel engine for your generator set, truck, or industrial equipment, two names often come up: Cummins and Weichai. Both brands are well-known in the industry and have strong reputations, but they offer different strengths. In this article, we’ll compare Cummins vs. Weichai based on engine quality, after-sales service, spare parts availability, and price, helping you decide which brand fits your needs best.   1. Engine Quality and Performance Cummins, founded in 1919 in the United States, has over a century of experience in diesel engine manufacturing. It’s widely recognized for high-end engineering, advanced technology, and strict quality control. Cummins engines are known for their smooth operation, high fuel efficiency, and compliance with international emission standards. However, they require regular maintenance and strict adherence to service schedules. Neglecting oil changes...

Top 10 Diesel Engines for Power Generators   When it comes to generator sets, the diesel engine is the heart of the machine. Choosing a reliable, fuel-efficient, and durable engine is crucial for long-term performance and operational stability—whether for backup power, continuous power, or industrial use. Here's a breakdown of the top 10 diesel engines for power generators widely trusted by generator set manufacturers and users worldwide.   Engine Brand Country Power Range Popular Models Fuel Efficiency Reliability Cost-effenciency Cummins USA 20kVA – 2000kVA 6BT5.9, QSX15, KTA38 ★★★★★ ★★★★★ ★★★★★ Perkins UK 10kVA – 2500kVA 1103A, 1506A, 4006TAG3A ★★★★★ ★★★★★ ★★★★☆ Deutz Germany 20kVA – 850kVA BF4M, BF6M, BF8M ★★★★★ ★★★★★ ★★★★☆ Caterpillar USA 10kVA – 2500kVA C7.1, C9, C15 ★★★★☆ ★★★★★ ★★★★☆ Man Germany 100kVA – 3250kVA D2676, D2862 ★★★★☆ ★★★★★ ★★★★☆ Isuzu Japan 20kVA – 60kVA 4JB, 6JB ★★★★★ ★★★★★ ★★★★★ MTU Germany 500kVA &nda...

Table of Contents Use Appropriate Diesel Fuel Choose Low-Pour-Point Diesel Proper Diesel Storage Management Maintain the Cooling System Use Antifreeze Coolants Check Coolant Levels and Quality Insulate the Generator Room Thermal Insulation for the Room Install Heating Equipment Protect the Lubrication System Switch to Winter-Grade Lubricants Preheat the Lubrication System Protect Other Critical Components Keep Batteries Warm Heat the Air Intake System     Winter can be challenging for diesel generator sets due to low temperatures that can affect their performance and longevity. To ensure reliable operation, it is essential to adopt effective anti-freezing measures. Below are some key practices to protect diesel generator sets in cold weather. 1. Use Appropriate Diesel Fuel   Choose Low-Pour-Point Diesel: Diesel's pour point is the temperature at which it starts to solidify. During winter, select diesel with a pour point lower than the lowest local temperature. For instan...

Effective Methods for Diagnosing and Resolving Faults in Diesel Generator Sets   The Excel sheet below provides a guide for common diesel generator fault diagnosis, offering quick troubleshooting methods for addressing typical diesel generator problems.     Fault Phenomenon Cause Solution Engine Fails to Start Air in the fuel pipe Remove air from the pipe   Speed signal interrupted Check the sensor and cable   Controller power disconnected or reversed Check the power supply and wiring   Governing mechanism transmission rod stuck at zero Reinstall and adjust   Controller output current limit value is too low Adjust the fuel supply potentiometer clockwise   External input protection is activated Check whether the system fault input terminal is always at a high level Engine Overstarts Actuator and engine fuel mechanism misaligned Check and reinstall or adjust   Zero positions of actuator and mechanism mismatch Reinstall and adjust   Contro...

Hosem Power utilize world-famous suppliers for the alternators and engines in our generators, including: CUMMINS, Perkins, Deutz, SDEC, Weichai, Isuzu, Quanchia, ensuring high-quality products. Below is our diesel generator production progress.   Manufacturing and Assembly Progress   Drawing The engineer draws the drawing according to the actual size and prepare to bending and cutting   Bending and Cutting Through the intelligent and automatic bending and cutting machine, complete the component of the generator set   Welding: Welding the cut parts and preparing them for painting   Spray painting Clean the welded body and process with triple powder coating, IR oven-cured   Mounting for noise reduction device Process: Cutting the soundproof cotton-platinum parts assembly-paste the soundproof cotton-mount the water tank plate-generator set housing assembly   Connecting the diesel engine air end and base frame Process: Clean the base frame-mount the anti-...

Small Marine Diesel Generators vs. Portable Generators: Which Is Right for Your Boat?   When it comes to powering your boat, choosing the right generator is crucial for ensuring a safe, efficient, and enjoyable experience on the water. Whether you need a reliable power source for extended voyages or just an occasional backup, understanding the differences between small marine diesel generators and portable generators can help you make an informed decision. This article will explore the key features, benefits, and drawbacks of each option to help you determine which is best suited for your boating needs.   Small Marine Diesel Generators   Small marine diesel generators are considered compact power solutions, typically powered by water-cooled engines. Popular brands in the market include Onan, Kohler, Yanmar, and Hosem Yacht series generators. Thanks to the water-cooled system, the engine's temperature is effectively controlled, allowing it to operate for extended periods....

SDEC D Series Technical Features The D series engines from Shanghai Diesel Engine Co., Ltd. are the top choice for powering large tractors and other agricultural machinery in China. These engines are renowned for their high reliability, low fuel consumption, and rapid load transient response. As one of the most advanced designs among China's mature engines, the D series boasts a torque reserve of 30-40% and offers a power range from 105 to 280 kW, meeting the National III and National IV non-road emission standards.   The D series engines were originally co-developed with Austria's AVL, taking into consideration the specific characteristics of Chinese oil products and user preferences. In 2005, further enhancements were made in collaboration with the Southwest Research Institute (SWRI) of the United States, including the upgrade to four valves. Designed according to the stringent standards of American heavy-duty diesel engines, the D series represents an environmentally friendly p...

How is the quality of SDEC Generator? Let me start with the conclusion: The quality of SDEC generators is excellent. As one of the top three Chinese engine brands, SDEC is renowned for its high reliability and low operating costs. Their engines are widely recognized and appreciated by customers for these features. SDEC Engine Profile   Shanghai Diesel Engine Co., Ltd.—formerly known as Shanghai Diesel Engine Factory—was founded in 1947 and is now part of the SAIC Group. In 1993, the company was restructured into a state-owned holding company, issuing A and B shares both domestically and internationally. It is recognized as a large-scale, high-tech enterprise specializing in the research, development, and manufacturing of engines, parts, and generator sets. The company boasts a nationally certified technology center and postdoctoral workstation, a passenger car standard quality management system, and advanced automated production lines.   With over 70 years of deve...