About Wenzhou AIKey Import and Export Co., Ltd.
Specialized in intelligent medium and high-voltage transmission & distribution equipment. Delivering IEC and GOST certified power solutions for utilities, renewable solar/wind generation, and heavy industrial enterprises across 100+ countries.
Reliable Engineering Partner for Global EPCs & Power Utilities
Headquartered in the electrical manufacturing heartland of Longwan, Wenzhou, China, Wenzhou Aikey Import and Export Co., Ltd. (brand: AIKEY) stands at the forefront of modern power equipment engineering.
Our comprehensive portfolio encompasses 10kV–35kV oil-immersed transformers, epoxy cast resin dry-type transformers, SF6-free solid insulated ring main units (SIS), prefabricated compact box substations, and power quality detuned filter reactors.
With deep engineering roots in severe operating conditions, AIKey equipment is widely deployed in extreme climates ranging from the sub-zero Siberian steppes (-40°C) to the high-temperature, sand-heavy deserts of the Middle East (+50°C).
Built on Four Uncompromising Pillars
Every piece of apparatus leaving our facilities embodies these strict technical commitments.
Safety First
All switchgear units incorporate internal arc-classified (IAC) safety chambers, five-prevention mechanical interlocks, and flame-retardant self-extinguishing insulation.
Low Loss & Efficiency
Laser-cut grain-oriented silicon steel cores with 45° step-lap mitred joints deliver up to 50% no-load loss reductions, meeting the highest Tier-1 energy benchmarks.
Modular Plug & Play
Prefabricated substations and modular SIS switchgear arrive 100% factory pre-wired and tested, reducing on-site installation time to less than 48 hours.
Strict Traceability
Every single transformer and switchgear panel carries a unique serial number with complete raw material test reports and routine factory inspection certificates.
Automated Production & Strict Testing Verification
Our production facility operates under ISO 9001, ISO 14001, and ISO 45001 management systems.
Advanced Manufacturing Infrastructure
- 1. German GEORG Core Cutting Line: Automatic 45° step-lap mitred slitting for ultra-low core loss.
- 2. Automated Cleanroom Foil Winding: Dust-free constant humidity winding room eliminating dielectric contamination.
- 3. Vacuum Differential Pressure Casting: Multi-stage resin casting autoclaves delivering void-free partial discharge < 5pC.
- 4. Robotic Welding & CNC Punching: Precision laser cutting and automated welding of corrugated oil tanks and switchgear enclosures.
- 5. Full-Shield Partial Discharge Test Hall: High-voltage impulse testing, temperature-rise testing, and audible noise measurement.
Governing Standards & International Compliance
| Standard Organization | Standard Reference | Covered Apparatus | Compliance Scope |
|---|---|---|---|
| IEC (International) | IEC 60076-1 / 2 / 3 / 11 | Power & Dry-Type Transformers | Temperature rise, dielectric ratings, sound levels, partial discharge |
| IEC (International) | IEC 62271-200 / 202 | Medium-Voltage Switchgear & Substations | Internal arc classification (IAC), short-time withstand, IP ratings |
| GOST-R / EAC | GOST 11677 / GOST 15150 | Transformers & Switchgear (Russia/CIS) | Climatic execution UHL1 down to -40°C/-50°C, seismic resistance |
| CE Compliance | EU Directives 2014/35/EU, 2014/30/EU | All Electrical Apparatus | Low Voltage Directive (LVD) and Electromagnetic Compatibility (EMC) |
| ISO Standards | ISO 9001 / 14001 / 45001 | Manufacturing Facility | Quality management, environmental protection, occupational health |