Company Overview and Contact Information

Fujian Yanan Power Group is a high-technology enterprise based in Ningde, Fujian, China, specializing in systematic power solutions. The company focuses on continuous innovation and customer satisfaction, providing multiple contact methods including telephone, fax, email, and website.

Key Advantages of Yanan Power Group

• Customer-Oriented Approach: Dedicated to customer satisfaction and delivering products suited to market needs.
• Wide Product Application: Power range from 8KVA to 3750KVA, compatible with major diesel engine brands such as Perkins, Cummins, Deutz, Volvo, MTU, MAN, and domestic brands.
• Reliable Performance: Utilizes UL-certified enamel wire, high-efficiency cold-rolled silicon steel sheets, international brand bearings, and Automatic Voltage Regulators (AVR) with strict quality control.
• Technical Support and Service: Professional technical team and efficient service management ensure rapid response.

Product Portfolio

• SLG Series Brushless Alternators (8-3750KVA)
• High Voltage Alternators (625-3000KVA)
• 400Hz Brushless Alternators (3-150KVA)
• Dual Frequency Brushless Alternators (15-25KVA)
• Permanent Magnet Alternators
• Fuel Cells (1-100KVA)

Certifications and Quality Standards

Yanan Power Group holds multiple certifications including ISO9001, ISO14001, ISO45001, GJB9001C, and Advanced AEO. Their products carry international certifications such as UL, CE, CCS, and TLC. The company is recognized as a high-tech enterprise and has received awards like National Intellectual Property Advantage Enterprise and China Export Quality and Safety Demonstration Enterprise. It is also a United Nations procurement supplier.

Research and Development

The company employs over 100 technical personnel and collaborates with national scientific research institutes. The SLG series brushless alternators are developed in-house for reliable operation in harsh environments.

Manufacturing Capabilities

With over 20 years of experience, Yanan produces more than 50,000 generators annually. The manufacturing facility spans 120,000 square meters with approximately 600 employees. Advanced equipment includes CNC machine tools, vacuum impregnation machines, automatic electrostatic painting lines, and prototype test systems. CAD-assisted design is utilized.

Technical Features of SLG Series Brushless Synchronous Alternators

• Optional permanent magnet generator system for constant excitation.
• Supports easy parallel operation with grid power or other generators; 2/3 pitch winding reduces excessive neutral current.
• Dynamically balanced rotors with sealed ball bearings; available in single or double bearing configurations.
• User-friendly installation and maintenance with accessible wiring posts, rotating diodes, and coupling bolts.
• Multi-specification transition sleeves and single-bearing disc couplings.
• Compliant with leading land and marine generator standards.

Electrical Characteristics

• AVR options include AS440, SX460, MX341, MX321.
• Voltage regulation rate of ±1%, supporting parallel operation, low-frequency protection, and external voltage regulation.
• Excitation system uses three-phase full-wave rectifier with varistors to suppress surge voltage and ensure smooth start-up.
• Brushless design and high-quality AVR minimize radio frequency interference; optional RFI suppression available.

Mechanical Features

• Marine alternators have standard IP23 protection; optional air filter available with 5% power derating.
• Industrial alternators standard IP21 (NEMA1); optional IP23 with 5% power derating.
• All rotors dynamically balanced with vibration levels better than BS6861 Part 1 Level 2.5.
• Standard three-phase alternators feature 12 reconnectable wiring terminals for various voltage configurations.
• Single and double bearing structures with various SAE adapter and coupling options.

Insulation and Windings

• Insulation class H with special varnish and resin materials for high mechanical strength and corrosion resistance.
• 2/3 pitch winding design effectively eliminates third harmonic voltage distortion, ideal for nonlinear loads and parallel operation.
• Continuous damping windings reduce oscillations and improve output voltage waveform quality.

Standards Compliance

SLG series alternators comply with GB755, BS5000 Part 3, VDE0530, NEMA MG1-22, IEC34, CSA C22.2-100, and AS1359 standards. Additional standards and marine certifications can be provided upon customer request.

Product Model Definition and Options

• Models are defined by frame number, pole count (typically 4 poles), core length, insulation, winding, and electrical features.
• Optional features include adapters and drive disks, single-phase operation, remote voltage adjustment, IP23 enclosure, space heaters, and thermistors.

Warranty and After-Sales Service

• Warranty period is 12 months or 1000 operating hours from delivery notification, whichever occurs first.
• Claims require detailed defect description, product information, purchase date, supplier details, and serial number.
• YANAN will repair or replace defective parts caused by manufacturing or material faults within warranty.
• Replacement parts during warranty are shipped free of charge; customers bear handling, transport, and installation costs.
• No liability for damage caused by improper installation, unauthorized repairs, or improper storage.
• Third-party products supplied by Yanan are covered by their respective manufacturers' warranties.
• YANAN's liability is limited to the current price of the defective product; all claim decisions are final.

Warranty Conditions for AC Alternators

Defective parts must be returned prepaid by the customer to an authorized service center or factory, including product number and label for identification.

The warranty covers 12 months from notification date or 1000 running hours, whichever is shorter. Compensation is limited to maintenance or replacement of defective parts and will not exceed the current price of the defective part.