HMGTU 350kVA/350kV Mobile GTU Partial Discharge-Free Withstand Voltage Test System: A Mobile Laboratory That Solves the Three Major Challenges of High-Voltage Testing

Mar 28, 2026 Leave a message

HMGTU 350kVA/350kV Mobile GTU Partial Discharge-Free Withstand Voltage Test System: A Mobile Laboratory That Solves the Three Major Challenges of High-Voltage Testing

 

In the power testing industry, "difficult transportation, lengthy installation cycles, and unstable partial discharge data" have long plagued 90% of power testing organizations. Traditional testing equipment requires disassembly into 6–8 modules for transport, and on-site assembly and commissioning takes three engineers two days to complete. In complex terrain, additional equipment hoisting is required, while the rate of partial discharge exceeding standards reaches as high as 35%, and the rate of retesting surges to 47%. Wuhan Goldhome Hipot Electrical Co., Ltd. has launched the all-new HMGTU 350kVA/350kV Vehicle-Mounted GTU Partial Discharge-Free Withstand Voltage Test System, redefining industry standards with three revolutionary designs.

 

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Key Selling Point 1: Vehicle-Integrated, Mobile Laboratory Design

The HMGTU 350kVA/350kV features a fully integrated vehicle structure, mounting the entire test system on a dedicated vehicle. Equipped with a vehicle-mounted hydraulic lifting mechanism, it offers exceptional mobility, with the hydraulic lifting platform capable of rapid deployment within 5 minutes. The vehicle has obtained GB/T 29712 road transport certification, achieving a 70% improvement in maneuverability on mountainous curves. Its robust and durable structure, capable of withstanding long-distance transport, completely resolves the time-consuming and labor-intensive challenges associated with the transportation and installation of traditional equipment.

 

Core Selling Point 2: Ultimate Partial Discharge Control, Exceptional Insulation Performance

The system incorporates a built-in SF6-filled, partial discharge-free transformer combined with dual isolation and filtering technology. Under 318kV operating conditions, measured partial discharge levels are ≤5 pC. With a voltage rating of up to 350kV and a rated capacity of 350kVA, overall partial discharge levels can be controlled within 1–3 pC, meeting the insulation withstand voltage and partial discharge testing requirements for high-voltage power equipment such as GIS and GIL.

 

Core Selling Point 3: Intelligent Maintenance, Reduced O&M Costs

Key components feature a modular design, reducing replacement time by 80%. Equipped with a PLC control system, it monitors over 200 equipment parameters in real time, achieving a fault self-diagnosis accuracy rate of 98.6%, significantly lowering average annual maintenance costs.

 

Core Selling Point 4: Multi-Purpose Capability, Adaptable to Various Testing Scenarios

The system features a built-in high-voltage isolating switch that connects directly to the test specimen without requiring additional intermediate components. By adding a high-voltage bushing interface to the equipment, high voltage can be output to perform various tests on traditional high-voltage equipment, achieving multi-purpose functionality and significantly improving equipment utilization.

 

As a national-level high-tech enterprise, Goldhome holds 22 national patents and operates a modern factory spanning over 10,000 square meters. The company has delivered more than 100,000 units of equipment to customers worldwide, with products distributed across China and exported overseas, making it a reliable choice in the high-voltage testing equipment sector.