EN
GDZK-IV Vacuum Switch Vacuum Degree Tester
GDZK-IV Digital Intelligent Vacuum Switch Vacuum Degree Tester with Magnetic Control Discharge Technology, External Excitation Coil, Built-in Tube Calibration Curves, One-Click Automatic Test, for On-Site Vacuum Interrupter Vacuum Measurement.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDZK-IV is a professional-grade, classic portable vacuum switch vacuum degree testerexclusively designed for on-site quantitative detection of vacuum interrupters in vacuum circuit breakers, vacuum contactors and vacuum load switches in power systems, electrical manufacturing and industrial enterprises. It fully complies with DL/T 846.9-2004, GB 1984-2014 and IEC 62271-100:2020 standards, adopting the advanced magnetic control discharge method that eliminates the need to disassemble vacuum interrupters, enabling direct on-site testing without power outage or equipment disassembly.
The instrument features an innovative external excitation coil that generates a uniform axial magnetic field around the interrupter, combined with a 18kV pulse electric field applied between the contacts. Under the combined action of electric and magnetic fields, residual gas molecules in the interrupter are ionized, and the resulting ion current is proportional to the vacuum degree. The built-in 200+ calibration curves for mainstream vacuum interrupter models automatically match and calculate the accurate vacuum degree value, eliminating the need for manual curve lookup.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | DL/T 846.9-2004, GB 1984-2014, IEC 62271-100:2020, JB/T 8738-2008 |
| Test Principle | Magnetic control discharge method (pulse electric field + synchronous magnetic field) |
| Test Method | Non-disassembly on-site testing with external excitation coil |
| Operation Mode | One-click fully automatic test / Manual test |
| Display | 128*64 dot matrix LCD with Chinese character display |
| Data Storage | 1000 groups test results with time stamps |
| Communication Interface | RS232 (connects to PC for data upload and curve download) |
| Electrical Parameters | |
| Input Power | AC 220V ±15%, 50Hz ±1Hz |
| Pulse Electric Field Voltage | 18kV DC (adjustable) |
| Synchronous Magnetic Field Voltage | 1600V DC |
| Ion Current Measurement Range | 10⁻⁷A ~ 10⁻¹A |
| Measurement Performance | |
| Vacuum Degree Measurement Range | 1×10⁻⁵ ~ 1×10⁻¹Pa |
| Measurement Accuracy | ±5% of reading (full range) |
| Resolution | 1×10⁻⁵Pa |
| Test Time | ≤10 seconds per interrupter |
| Built-in Tube Curves | 200+ mainstream vacuum interrupter models |
| Protection Functions | |
| Over-voltage Protection | Yes (20kV automatic power off) |
| Over-current Protection | Yes |
| Short Circuit Protection | Yes |
| Emergency Stop | Yes |
| Power Supply | |
| Input Power | AC 220V ±15%, 50Hz |
| Power Consumption | ≤100W (average), ≤500W (peak) |
| Physical Parameters | |
| Main Unit Dimensions | 460×335×330mm (L×W×H) |
| Excitation Coil Dimensions | Φ150mm × 80mm (customizable for different interrupter diameters) |
| Main Unit Weight | ~10kg (including all components) |
| Excitation Coil Weight | ~1.5kg |
| Housing | Cold-rolled steel with electrostatic spraying |
| Protection Grade | IP40 |
| Operating Temperature | -10℃ ~ +40℃ |
| Storage Temperature | -20℃ ~ +60℃ |
| Humidity | ≤85% RH (non-condensing) |
| Altitude | ≤2000m (customizable for higher altitudes) |
Applications
Core Test Objects
- Vacuum Circuit Breakers: 3.6kV ~ 40.5kV indoor and outdoor vacuum circuit breakers
- Vacuum Contactors: AC vacuum contactors, DC vacuum contactors, high-voltage vacuum contactors
- Vacuum Load Switches: Vacuum load switches, vacuum circuit breakers with load switching function
- Other Vacuum Equipment: Vacuum reclosers, vacuum sectionalisers, vacuum interrupters for capacitors
Typical Usage Scenarios
- Power companies: Substation preventive maintenance, vacuum switch regular inspection, fault diagnosis
- Switchgear manufacturers: Factory quality control, type tests, batch production inspection
- Power plants: Generator circuit breaker test, auxiliary equipment vacuum switch inspection
- Industrial enterprises: Internal electrical equipment maintenance, vacuum switch routine testing
- Third-party testing institutions: Electrical equipment certification testing, on-site calibration services
Advantages
Compliance with Latest International Standards
Fully meets DL/T 846.9-2004 Chinese industry standard, GB 1984-2014 national standard and IEC 62271-100 international standard → test results are recognized by certification bodies worldwide
Industry-Leading No Disassembly Testing
Eliminates the need to disassemble vacuum interrupters, reducing test time by 90% and avoiding mechanical adjustment after reassembly → the only practical solution for on-site vacuum degree testing
Comprehensive Built-in Tube Calibration Curves
Pre-calibrated curves for 200+ mainstream interrupter models, automatic matching and calculation → eliminates manual curve lookup errors and ensures accurate test results
High Sensitivity & Wide Measurement Range
Detects trace gas leakage as low as 10⁻⁵Pa, covering all vacuum degrees from new to severely degraded interrupters → identifies early vacuum degradation before it causes catastrophic failures
One-Click Fully Automatic Operation
Completes the entire test process in less than 10 seconds per interrupter → greatly improves on-site work efficiency and reduces operator skill requirements
Comprehensive Data Management & Communication
1000 groups data storage, RS232 interface and dedicated PC software → facilitates digital management of test data and historical trend analysis
FAQ
Q: What is the magnetic control discharge method and how does it work?
A: The magnetic control discharge method is the international standard quantitative testing method for vacuum interrupter vacuum degree. It works by applying a pulse electric field between the open contacts of the vacuum interrupter and a synchronous axial magnetic field around the interrupter. Residual gas molecules in the interrupter are ionized under the combined action of electric and magnetic fields, and the resulting ion current is proportional to the gas density (vacuum degree). By measuring the ion current and using the pre-calibrated curve for the specific interrupter model, the accurate vacuum degree value can be calculated.
Q: Do I need to disassemble the vacuum interrupter from the switchgear for testing?
A: No. GDZK-IV adopts an innovative external excitation coil design. You only need to open the switchgear door, pull the vacuum interrupter to the open position, and place the excitation coil around the interrupter. The entire test process does not require disassembly of the interrupter or any mechanical adjustment, which greatly simplifies the test procedure and avoids damage to the switchgear.
Q: What types of vacuum interrupters can GDZK-IV test?
A: GDZK-IV can test all types of vacuum interrupters used in 3.6kV ~ 40.5kV vacuum circuit breakers, vacuum contactors and vacuum load switches. It has built-in calibration curves for 200+ mainstream interrupter models from all major domestic and international manufacturers. For special models, you can easily add new calibration curves through the computer interface.
