<1000kV Range
LQHID 200KV/300pF Weak Damping Capacitor Voltage Divider
Designed for high-voltage transient measurements, the LQHID 200KV/300pF Weak Damping Capacitor Voltage Divider delivers laboratory-grade accuracy in lightning impulse testing and power systems research. With enhanced voltage handling and GB311-compliant response characteristics, this instrument ensures reliable performance in critical high-voltage applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HID 200KV-300pF |
| HV Arm Capacitor | Single-stage 200kV/300pF |
| Standard Lightning Wave | 200kV impulse withstand |
| Rated Capacitance | 300pF ±5% |
| Voltage Ratio | 1000:1 |
| Partial Response Time (Tα) | ≤100 nanoseconds |
| Overshoot (β) | ≤20% |
| Scale Factor Uncertainty (Ks) | ±1% |
| Square Wave Response | 0~9.9μS per GB311 standard |
| Dimensions | 0.8m × 0.8m × 1.8m (L×W×H) |
Performance Highlights
Enhanced Voltage Capability
200kV-rated capacitor arm withstands standard lightning waves up to 200kV peak, making it ideal for transformer and switchgear testing.
Precision Transient Capture
≤100ns partial response time with ≤20% overshoot ensures accurate waveform reproduction during fast-front impulses.
Optimized Capacitive Design
300pF single-stage construction minimizes phase distortion and thermal drift for stable 1000:1 scaling (±1% uncertainty).
Standards Compliance
Meets GB311 square wave response requirements (0-9.9μS)
Compatible with IEC 60060-1 high-voltage test procedures
Designed for IEEE 4 standard impulse wave measurements
Key Applications
High-Power Labs: 200kV+ lightning impulse tests on bushings and insulators
Energy Utilities: Switching surge measurements in substations
Equipment Manufacturers: Dielectric validation of XLPE cables and GIS components
Research Facilities: Transient overvoltage studies in HVDC systems
Comparative Advantages
| Feature | Benefit |
|---|---|
| Weak Damping Topology | Minimal waveform distortion during steep-front transients |
| Compact Design | 1.8m height fits standard high-voltage labs |
| Single-Stage Architecture | Eliminates multi-stage reflection errors |
Operational Parameters
Temperature range: -30°C to +60°C
Humidity tolerance: ≤95% non-condensing
Calibration cycle: 12 months (recommended)
Connector type: SHV or N-type (customizable)
Why This Divider Excels
The LQHID 200KV/300pF delivers superior performance for:
Accurate reproduction of 1.2/50μs lightning impulses
Precise measurement of 200kV switching surges
Long-term stability in harsh electrical environments
Technical Support
Our HV engineering team provides application-specific guidance on:
Test setup optimization for IEC 60060-1 compliance
Calibration protocols traceable to NIST standards
Integration with oscilloscopes and data acquisition systems
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