Product Overview

The LQHCG 200KV-400pF Multiple Chopping Gap is a precision high voltage testing device designed for generating controlled chopped waves in high voltage applications. This specialized equipment features advanced triggering mechanisms and precise timing control, making it ideal for various high voltage testing scenarios in industrial and research settings.

Technical Specifications

Core Parameters

• Rated Voltage: 200kV

• Rated Capacitance: 400pF

• Stages: 1 stage configuration

• Quantity of Sphere Gaps: 4 pairs

Gap Configuration

• Gap Type: 150mm diameter semi-sphere gap

• Electrode Material: High-grade conductive alloy

• Surface Finish: Precision polished for consistent performance

Triggering System

• Trigger Method: Three electrodes discharge trigger

• Pulse Amplifier: High-performance output of 10kV, 100ns trigger pulse

• Trigger Stability: ±0.5% variation under standard conditions

Timing Control

• Time-delay Method: Adjustable electric time-delay circuit

• Trigger Pulse: 150kV (compatible with control systems)

• Chopping Time Setting: Digital precision control

• Chopped Wave Consistency: Standard deviation of chopping time less than 0.1μs

Key Features and Benefits

Precision Performance

• Sub-microsecond chopping time accuracy

• Consistent waveform generation

• Minimal jitter in pulse timing

Advanced Safety

• Multiple sphere gap design for controlled breakdown

• Isolated triggering system

• Fail-safe timing circuits

Operational Flexibility

• Wide adjustment range for time-delay

• Compatible with various control systems

• Modular design for maintenance

Primary Applications

Transformer Testing

• Impulse voltage testing of insulation systems

• Chopped wave testing per IEC 60076 standards

• Dielectric strength evaluation

Switchgear Testing

• High voltage withstand testing

• Fast transient simulation

• Breaking capacity evaluation

Surge Arrester Testing

• Protection characteristic verification

• Response time measurement

• Energy handling capacity tests

Research & Development

• High voltage phenomena studies

• Material breakdown characteristics

• Protective device development

Operational Guidelines

Setup Procedures

1. Ensure proper grounding of all system components

2. Verify sphere gap alignment and cleanliness

3. Connect control system and verify communication

4. Perform low-voltage system check before full operation

Safety Precautions

• Always discharge capacitors before handling

• Maintain safe working distances per HV safety standards

• Use appropriate personal protective equipment

• Implement lockout/tagout procedures during maintenance

Maintenance Requirements

• Regular cleaning of sphere surfaces

• Periodic inspection of trigger electrodes

• Annual calibration of timing circuits

• Dielectric fluid checks (if applicable)

Technical Advantages

The LQHCG 200KV-400pF Multiple Chopping Gap offers several technological advantages over conventional chopping gap systems:

• Enhanced Timing Precision: The digital time-delay system provides superior accuracy in chopped wave generation, essential for standardized testing procedures.

• Improved Reliability: The four-pair sphere gap configuration ensures consistent performance even after extended use.

• Versatile Triggering: The three-electrode discharge system allows for flexible operation across different test scenarios.

• Research-Grade Performance: With chopping time deviation under 0.1μs, the system meets stringent requirements for both industrial testing and academic research.

Conclusion

The LQHCG 200KV-400pF Multiple Chopping Gap represents a sophisticated solution for high voltage testing applications requiring precise chopped wave generation. Its combination of technical specifications - including the 200kV rating, 400pF capacitance, and sub-microsecond timing accuracy - makes it particularly valuable for transformer testing, switchgear evaluation, and surge arrester verification. The device's multiple sphere gap design and advanced triggering system ensure reliable, repeatable performance in both industrial testing environments and research laboratories. When operated according to manufacturer guidelines and with proper safety protocols, this equipment provides accurate, consistent results for critical high voltage testing applications.