This vehicle-mounted, integrated surge-type 750kV AC withstand voltage test platform consists of a chassis, SF6 gas reactor, SF6 gas capacitor voltage divider, excitation transformer, frequency-modulated power supply, and automatic lifting device. The reactor and voltage divider are integrated using sealed technology, resulting in a compact structure.

It can be used for on-site AC withstand voltage testing of power equipment with voltage levels of 500kV and below. It can be used for port-to-port connection with test equipment such as GIS in space-constrained locations such as pumped-storage power stations and underground substations.

Multiple specifications: 500kV, 750kV, and 1000kV integrated AC auxiliary voltage test platform.

It utilizes a hydraulically lowered transport method, with a transport height of less than 2 meters, making it easy to cross bridges and tunnels. The platform is equipped with various seismic and cushioning measures and has successfully passed 12,000 kilometers of transportation under complex road conditions, demonstrating its compatibility with diverse road conditions. Once the product arrives at the site, withstand voltage testing can be conducted without disembarking from the vehicle. The hydraulic lifting system allows the main unit to be erected and positioned with a single click, eliminating the need for secondary lifting and assembly. Once the main unit is positioned, the test time is reduced to less than 5 minutes, significantly improving on-site testing efficiency. When horizontally positioned, the high-voltage leads are pre-connected to the reactor's primary terminals, requiring only the high-voltage leads of the test unit to be connected on-site. This reduces overhead work and improves personnel safety

Key Features

1. On-board Mobile Integrated Platform: The entire 750kV series resonance test system is highly integrated into a dedicated vehicle, enabling flexible deployment of testing capabilities.

2. Hydraulic Accumulation and Reduction System: Core components (such as reactors) are automatically raised and lowered via an on-board voltage platform, eliminating lifting and manual handling, significantly improving efficiency and safety.

3. Rapid On-site Deployment: Testing begins immediately after the hydraulic outriggers are leveled, eliminating complex lifting procedures and significantly reducing preparation time.

4. Fully Automated Test Process: Automatic tuning locks the resonance point, allowing one-click completion of the entire voltage step-up, timing, and voltage step-down process based on preset parameters.

5. Remote and Secure Operation: Supports fiber-optic remote control, ensuring operators can complete tests from a safe distance.

6. Intelligent Protection and Monitoring: Multiple real-time protections (overvoltage, overcurrent, flashover, etc.) combined with key parameter monitoring and data logging ensure safe and reliable testing.

7. Reliable Grounding: Integrated large-section grounding devices and ground detection ensure reliable equipment grounding during testing.

1. Rated Voltage: 750kV

2. Rated Current: 6A

3. Rated Output Power : 4500kVA

4. Duty: ≥30min

5. Resonant Reactor: Rated Inductance 435H

6. Operating Frequency: 30-300Hz

7. Power Distribution: Rated Inductance 435H, Input Three-Phase Four-Wire AC 380kV±10% +N 50Hz, Hydraulic Power Distribution Three-Phase 40A Capacitive Voltage Divider

8. Rated Capacitance: 8000pF

9. Hydraulic System:

1) System Operating Low Pressure 3MPa±1MPa

2) System Operating Medium Pressure 8MPa±1MPa

3) System Operating High Pressure 16MPa±1MPa

4) System Operating Flow 25L/min

10. Dimensions: 9300mm (L) x 2300mm (W) x 2600mm (H), Weight: 16,000kg