LGY Automatic Control Cabinet for Test Transformers

Intelligent Supporting Equipment for HV Testing Systems

The LGY Automatic Control Cabinet is a specialized testing device compliant with GB/T16927.1-2001 High Voltage Testing Technology standards. This integrated solution combines control panel and voltage regulator components, delivering intelligent, compact, and reliable performance for transformer testing applications.

Product Parameters

Key Advantages:

• Hardware+software anti-interference technology

• High-precision touchscreen operation

• Password-protected transformer ratio setting

• Compact mobile design with superior safety

Product Specifications

Display & Interface

• 7-inch LCD with real-time voltage/current monitoring

• Bilingual interface (Chinese/English)

• Status indicators and operation prompts

Control Features

• Digital Calibration: Replaces traditional potentiometers

• Transformer Ratio Setting: Direct input with password protection

• Dual Timing Modes: Automatic (0.1-999s) and manual control

• Voltage Ramp Rate: Programmable (default 1kV/s)

Safety Mechanisms

• Automatic zero-return after test completion

• Overvoltage protection with hardware cutoff

• Operation guidance system for error prevention

Technical Highlights

Advanced Anti-Interference Technology

Our proprietary combination of:

• EMI-filtered power inputs

• Optical isolation for signal paths

• Digital signal processing algorithms

Multi-Transformer Compatibility

Seamlessly connects with test transformers of various voltage classes through:

• Programmable ratio adjustment (1:1 to 1:1000)

• Automatic voltage scaling

• Universal interface terminals

Operation Modes

1. Automatic Test Sequence

1. Set target voltage and duration

2. System auto-ramps at configured rate

3. Precision timing upon reaching setpoint

4. Automatic return-to-zero post-test

2. Manual Control

Traditional voltage adjustment with enhanced safety:

• Button-controlled voltage increase/decrease

• System-enforced safety limits

• Manual timer initiation

Industry Applications

• Power frequency withstand voltage testing

• Transformer manufacturing QC

• High-voltage lab research

• Electrical equipment certification

Standards Compliance

Meets requirements of GB/T16927.1, IEC 60060-1, and IEEE Std 4-2013 for high-voltage test techniques.