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KDCJ-400kV/20kJ Lightning Impulse Voltage Test Device for Medium-Voltage Equipment
KDCJ-400kV/20kJ Lightning Impulse Voltage Test Device for Medium-Voltage Equipment

KDCJ-400kV/20kJ Lightning Impulse Voltage Test Device for Medium-Voltage Equipment

Applications:

Complies with GB311.1 and IEC standards, used for 1.2/50μs lightning impulse tests of ≤35kV transformers, switches and insulators. Applied in electrical labs and manufacturers for insulation performance verification and product certification.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

KDCJ-400kV/20kJ is a compact impulse test system with Swiss HAEFELY-style design. It features PLC + fiber-optic control, 1.0GS/s sampling and automatic grounding, ensuring reliable medium-voltage insulation testing.

Features:

  • Outputs standard lightning impulse wave (1.2μs±30%/50μs±20%) with amplitude error <1%
  • 4-level modular structure with dry-insulated capacitors (1.0μF/100kV), no oil leakage
  • Fiber-optic communication eliminates electromagnetic interference, enhancing system safety
  • Closed-loop constant current charging (stability ±0.5%) with manual/automatic control modes
  • 400kV weak damping divider (800pF) with partial response time <100ns
  • Real-time waveform analysis, data storage and report generation via KDMS-6000 system
  • Automatic grounding + overvoltage/overcurrent protection, synchronization failure rate <1%

Parameter:

  • Core Output Performance
    • Nominal voltage: 400kV; Rated energy: 20kJ; Stage configuration: 4 stages (5kJ/stage)
    • Stage voltage: 100kV; Stage capacitance: 1.0μF (dry full insulation package)
    • Synchronization range: ≥20%; Minimum output voltage: ≤10%Un
  • Waveform Specifications
    • Wavefront time: 1.2μs±30%; Half-peak time: 50μs±20%; Overshoot <10%
    • Continuous operation: ≤80%Un; Intermittent operation: >80%Un
  • Power & Environment
    • Power supply: AC220V, 5kVA, 50/60Hz; Ground resistance: ≤0.5Ω
    • Working temperature: -15℃~+50℃; Relative humidity: ≤90% (no condensation); Altitude: ≤1500m
  • Measurement & Control
    • Measurement system: KDMS-6000 (1.0GS/s sampling rate, 100MHz bandwidth, 2 channels)
    • Control system: IGCS-2020 PLC + touchscreen; Voltage display accuracy: ±1%
  • Physical & Safety
    • Structure: Compact modular design (movable); Divider: 400kV/800pF, voltage division ratio uncertainty <1%
    • Safety functions: Automatic grounding, emergency stop, door interlock, overvoltage/overcurrent protection
  • Accessories
    • Standard accessories: DC charging power supply (100kV/100mA), weak damping divider, wave-adjusting resistors, 100x attenuators (2 pcs), discharge rod, user manual, calibration certificate

Contact Us

Kaidi Zhengda Electric
Kaidi Zhengda

Oversea Sales Manager

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Phone：+852 5745 8949

Address：4th Floor, Building 12, No. 88, Huanhu Middle Road, Dongxihu District, Wuhan City, Hubei Province, China

+86-027-83551828

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