Sphere Gap
LQHSG1000 1000mm Vertical Sphere Gaps for Extreme High Voltage Testing
Product Overview
The LQHSG1000 vertical sphere gap system represents the pinnacle of high voltage measurement technology, featuring massive 1000mm precision copper spheres for measurements up to 1010kV. This IEC 60052-compliant instrument provides direct voltage measurement with ±3% accuracy for high-power research facilities and electrical testing laboratories.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sphere Diameter | 1000mm (±0.2mm tolerance) |
| Maximum Voltage (1.2/50μs impulse) | 1010kV at 500mm spacing (0.5×D) |
| System Height | 5.9m (adjustable) |
| Base Footprint | 3.3m × 1.5m |
| Total Weight | 620kg (net) |
| Gap Adjustment Resolution | ±0.5mm precision scale |
| Measurement Accuracy | ±3% (IEC 60052 Standard) |
| Surface Roughness | ≤0.05μm Ra (mirror finish) |
Key Features
Ultra-High Voltage Measurement
1000mm oxygen-free copper spheres (99.99% purity)
Vertical configuration for minimum floor space
Industrial-grade construction for 24/7 operation
Precision ground stainless steel adjustment mechanism
Advanced Measurement Capabilities
1010kV rating for standard lightning impulse (1.2/50μs)
Multi-voltage measurement:
Lightning impulse voltages
AC peak voltages (50-60Hz)
DC voltages
Optional chopping device for waveform termination
Safety & Compliance
Full compliance with IEC 60052 standards
Insulating columns rated for 1100kV BIL
Integrated safety discharge system
Designed for controlled laboratory environments
Optional Chopping System
| Component | Specification |
|---|---|
| Trigger Method | Programmable electronic ignition |
| Delay Range | 1-5μs in 8 discrete steps |
| Timing Accuracy | ±0.1ms maximum deviation |
| Power Requirements | 230V AC, 50/60Hz, 600VA |
| Trigger Mechanism | Integrated ignition rod in replacement sphere |
Note: Chopping operation requires replacement of one measurement sphere with the dedicated trigger sphere.
Installation Requirements
Laboratory Space: Minimum 7m × 6m with 6.5m ceiling height
Environmental Conditions: 20°C ±2°C, ≤40% RH recommended
Foundation: Reinforced concrete pad (minimum 500mm thickness)
Safety Clearances: 4m minimum from all structures
Power Requirements: Dedicated 230V/40A circuit for chopping system
Typical Applications
Calibration of extra-high voltage measurement systems
Research in ultra-high voltage dielectric phenomena
Testing of 1000kV+ class power equipment
Impulse generator waveform verification
High voltage component development
Maintenance Protocol
Routine Maintenance
Daily: Visual inspection of sphere surfaces
Weekly: Mechanical function verification
Monthly: Full system diagnostic
Periodic Service
6 Months: Precision alignment check
Annual: Complete system recalibration
2 Years: Full metrological recertification
Cleaning Procedure: Use only static-free wipes with electronic-grade isopropyl alcohol (99.99% purity).
Technical Advantages
Industry-Leading Accuracy: ±3% measurement accuracy at 1010kV
Heavy-Duty Construction: Designed for research-grade reliability
Flexible Configuration: Compatible with various test setups
Future-Ready Design: Modular architecture for system upgrades
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