The KDZD‑GTU‑GIS partial discharge simulation system adopts integrated compact design for easy transportation and simple operation. Filled with SF6 insulating medium, it achieves ultra‑low background partial discharge and delivers distinct, stable discharge waveforms for four typical defect modes: tip, floating, particle and surface discharge. The system realistically reproduces internal partial‑discharge faults of real GIS‑type high‑voltage equipment. Operators can select single or composite discharge types externally, and independently adjust inception voltage, extinction voltage and discharge intensity without opening high‑voltage chambers. Built‑in coupling and calibration units for pulse‑current method support synchronous PD measurement to evaluate detector performance. An internal infrared video probe captures real‑time discharge visual records. High‑voltage boosting components are fully enclosed for operator safety. Reusable discharge modules maintain consistent fault characteristics for repeated teaching and research experiments.

• Reproduces multiple partial‑discharge defects including tip discharge, floating discharge, particle discharge and surface discharge; supports composite discharge generation.
• External manual control to select discharge types and adjust inception voltage, extinction voltage and discharge intensity flexibly.
• SF6 gas‑insulated structure realizes extremely low background partial discharge for clear and distinguishable PD waveforms.
• Built‑in coupling and calibration units for pulse‑current method, enabling metrology transfer and performance assessment of PD test instruments.
• Integrated infrared video probe for visual observation and video recording of internal discharge phenomena.
• Compatible with multiple detection technologies: pulse‑current, UHF, ultrasonic and transient earth voltage (TEV) methods.
• Fully‑enclosed built‑in high‑voltage booster provides reliable electrical isolation to guarantee operator safety.
• Discharge modules are reusable with stable repeatable discharge features for long‑term teaching and research use.
• Supports automatic and manual operation modes via intelligent control console.

• Rated capacity: 5 kVA
• Input power supply: single‑phase 220 V, 50 Hz
• Rated high‑voltage output: 100 kV
• Rated current: 0.05 A
• Output waveform: sine wave
• Total waveform distortion rate of complete set: ≤5%
• System noise level: ≤45 dB
• Short‑circuit impedance of test transformer: ≤6%
• Continuous operating duration under rated voltage and current: 30 minutes; 1 minute under 1.1 times over‑voltage condition
• Background partial discharge level at rated voltage: ≤2 pC
• Protection functions: over‑voltage protection and over‑current protection
• Insulation medium for high‑voltage chamber: SF6 gas; transformer chamber pressure: 0.4 MPa, PD module chamber pressure: 0.2 MPa
• Coupling capacitor parameter: 200 pF
• Simulatable discharge types: tip discharge, floating discharge, particle discharge, surface discharge
• Dimension of boost and PD simulation unit: 2010 mm × 705 mm × 1500 mm
• Total weight of boost and PD simulation unit: 412 kg
• Control console output voltage range: 0‑250 V single‑phase
• Voltage accuracy of control console: class 1.0
• Isolation transformer attenuation: ≥40 dB within 40 kHz‑100 kHz, ≥60 dB within 100 kHz‑2 MHz