≥1000KV Range

LQHCG 1800KV-400pF Dual-Stage Chopping Gap | Ultra-High Voltage Test System

Dual-stage 1800kV chopping gap system with 8×150mm sphere gaps, 10kV/100ns trigger pulse, and sub-0.1μs chopping time precision for ultra-high voltage testing applications.

US$ 21,312.00
Lead time: 60 days

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Product Details

Product Tags

LQHCG 1800KV-400pF Dual-Stage Multiple Chopping Gap System

Industry-Leading High Voltage Testing

The LQHCG 1800KV-400pF sets new benchmarks in ultra-high voltage testing with its dual-stage architecture and nanosecond-precision triggering. Engineered for laboratories requiring 1800kV impulse testing with ≤0.1μs chopping time deviation, this system delivers unmatched stability for critical power equipment validation.

Technical Specifications

Electrical Parameters

Rated Voltage	1800kV (peak)
Stage Configuration	2×900kV stages
Rated Capacitance	400pF ±2%
Chopping Range	2-5μS (digitally adjustable)

Mechanical Design

Sphere Gaps	8 pairs (4 per stage)
Gap Diameter	150mm semi-sphere
Trigger Pulse	10kV, 100ns rise time
Time-Delay Pulse	250kV adjustable

Performance Metrics

Chopping Precision	σ<0.1μs deviation
Trigger System	3-electrode discharge
Pulse Amplifier	High-performance 10kV output
Control Interface	Digital time setting

Breakthrough Technology

Dual-Stage Voltage Distribution
2×900kV stages provide superior voltage balancing and reduced field distortion compared to single-stage 1800kV systems
Nanosecond Trigger System
10kV/100ns pulse amplifier ensures reliable initiation even under maximum voltage conditions
Precision Time Control
Digital adjustment of 250kV time-delay pulse enables μs-accurate chopping

Compliance & Certifications

This system meets rigorous international standards:

IEC 60060-1 & -2: High-voltage test techniques
IEEE Std 4-2013: Standard for HV testing
GB/T 16927.1-2011: Lightning impulse tests
EN 60060-2: Measurement requirements

Typical Test Applications

Ultra-high voltage transformer impulse testing
HVDC transmission equipment validation
Power capacitor bank withstand tests
Research on 800kV+ GIS systems
National standards laboratory reference

Operational Advantages

Feature	Benefit	Technical Impact
Dual-stage design	Improved field uniformity	Reduces corona loss by ~35%
100ns trigger	Higher reliability	99.7% first-attempt success rate
Digital control	Precision timing	±0.02μs time-setting resolution

Maintenance Protocol

Monthly sphere gap inspection (clean with anhydrous ethanol)
Quarterly trigger circuit verification
Annual full-system calibration
5-year dielectric fluid replacement
10-year comprehensive overhaul

Why This System?

The LQHCG 1800KV-400pF represents the pinnacle of chopping gap technology, combining unprecedented 1800kV capacity with sub-μs precision. Its dual-stage architecture and advanced trigger system make it the preferred choice for national labs, power equipment manufacturers, and research institutions where measurement certainty is non-negotiable.