Advanced Automated Calibration of SF6 Density Relays with ZXMD-2001

In the maintenance of high-voltage electrical equipment, the SF6 density relay is a critical monitoring component, ensuring the integrity and insulation performance of SF6 gas in circuit breakers and GIS systems. Accurate calibration of these relays is essential for system reliability. The ZXMD-2001 Full Automatic SF6 Density Relay Calibrator represents a significant technological leap, transforming this calibration process into a highly efficient, precise, and intelligent operation.

Core Technological Innovation

At the heart of the ZXMD-2001 is a 32-bit high-performance microprocessor coupled with a high-speed signal processing chip and a high-precision pressure sensor. This powerful combination facilitates real-time data acquisition and sophisticated algorithm execution. The instrument's standout feature is its ability to automatically measure the pressure value at the precise moment of a relay's signal action (alarm or lockout) under the ambient temperature, and instantly convert it to its equivalent pressure at the standard reference temperature of 20°C. This dynamic temperature-pressure compensation is performed automatically, eliminating the traditional need for manual calculations or constant temperature chambers, and fundamentally solving the challenge of accurate field calibration.

Key Features for Technical Professionals

1.Fully Automated Workflow: The entire test sequence—from pressure control, signal triggering, data capture, temperature conversion, to result storage—is executed autonomously. This removes human error from manual gas path adjustments and streamlines the procedure.

2.Enhanced HMI & Connectivity: Featuring a large 320x240 LCD and an intuitive rotary mouse ("one-button fly shuttle"), the interface allows for clear parameter visualization and easy operation. Integrated USB 2.0 communication facilitates data transfer, while a built-in micro-printer generates immediate English report sheets for documentation.

3.Robust Field Design: Engineered for harsh substation environments, it operates from -20°C to 80°C. The use of all-metal quick connectors prevents seizing in cold weather, a common issue with plastic fittings. Its portability (8kg) and suite of adaptable joints enable on-site verification of most relay models without disassembly.

4.Intelligent Diagnostics & Data Management: The system can automatically identify and alert to faults during the test process. It stores up to 50 complete test results with power-off protection, allowing for historical review and re-printing. Online functions for system clock and pressure correction provide flexibility for field adjustments and traceability.

5.Eco-Efficiency: The calibrator consumes minimal SF6 gas during testing, significantly reducing gas waste, lowering operational costs, and minimizing environmental release.

Technical Specifications at a Glance

1.Accuracy Class: 0.2

2.Pressure Range: 0 – 1.0 MPa

3.Pressure Resolution: 0.001 MPa

4.Temperature Resolution: 0.1 °C

5.Calibration Capability: Single alarm; single lockout; one alarm & one lockout; one alarm & two lockouts.

6.Power Supply: AC 220V, 50Hz

7.Display Modes: Shows both actual pressure at ambient temperature and equivalent pressure at 20°C.

Conclusion

The ZXMD-2001 Full Automatic SF6 Density Relay Calibrator embodies the shift towards smart grid maintenance tools. By integrating advanced mechatronics, intelligent software algorithms, and user-centric design, it delivers laboratory-grade accuracy in a rugged, portable package. For technicians and engineers, it simplifies a complex procedure, ensures uncompromising calibration quality, and enhances the safety and reliability of SF6-insulated electrical assets. It stands as the optimal technical solution for efficient and precise density relay maintenance.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/