Product Overview

The LQHCG 800KV-400pF is a precision-engineered multiple chopping gap system designed for high-voltage impulse testing applications. This 2-stage configuration with 8 pairs of sphere gaps delivers exceptional waveform chopping accuracy with standard deviation below 0.1μs, making it ideal for dielectric testing and power equipment validation.

Key Specifications

Technical Highlights

Advanced Trigger Mechanism

The three-electrode discharge system utilizes a high-performance pulse amplifier generating 10kV trigger pulses with 100ns rise time, ensuring precise and repeatable gap breakdown.

Precision Time Control

Integrated electric time-delay circuit provides 2-5μs adjustable chopping synchronization, compatible with GCS2006 digital control systems for accurate chopped wave generation.

MWF400-800 Impulse Capacitors

Each stage employs military-grade 800pF capacitors with optimized dielectric construction for minimal energy loss during high-voltage switching operations.

Typical Applications

• Lightning impulse voltage tests per IEC 60060-1

• Dielectric strength testing of power transformers

• Research on insulation breakdown characteristics

• Calibration of high-voltage measurement systems

• Generator and circuit breaker testing

Operation & Safety Features

1. Graded Potential Design - Equalized voltage distribution across stages

2. Anti-flashover Construction - Optimized sphere gap geometry prevents surface tracking

3. Trigger Isolation - Optically isolated control signals ensure operator safety

4. Fail-safe Interlocks - Prevents operation unless all safety conditions are met

Compliance Standards

The LQHCG system meets or exceeds:

• IEC 60060-1: High-voltage test techniques

• IEEE Std 4: Standard for high-voltage testing

• EN 61010-1: Safety requirements for electrical equipment

• GB/T 16927.1: Chinese national standard for HV testing

Maintenance Requirements