Huazheng HZ-KG7 Vacuum Switch Vacuum Tester
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| Description:
In JB8738-1998《vacuum interrupter arc chamber of 3.6-40.5KV AC high voltage switchgear》established by high-voltage switchgear National Standardization Technical Committee, it is prescribed that the internal gas pressure measurement and allowable storage time limit inspection must be executed for any user and producer of interruption arc chamber of high-voltage vacuum switchgear. At the same time, in National Standardization -JB8738-1998, it is also noticed that allowable storage time limit of interruption arc chamber should be 20 years, and internal gas pressure of the vacuum interrupter arc chamber should be less than 6.6×10-2Pa. Inspection methods of Allowable Storage Time of Vacuum Interrupter Arc Chamber: measuring internal gas pressure of vacuum interrupter arc chamber should be with a pulsed magnetic vacuum meter, recode the pressure value P1 (Pa); after put the vacuum meter aside for period of time-t(d), measure the internal gas pressure of vacuum interrupter arc chamber with this vacuum meter again, and recode the pressure value P2 (Pa), holding time t should be less than 7d. |
| Specifications Detection Objects: Various models of vacuum switches Detection Method: Uses a new excitation coil; detects vacuum tube without disassembly Application Area: All-purpose instrument for measuring vacuum in different open magnetic vacuum tubes Detection Range: 10⁻⁵ to 10⁻¹ Pa Measurement Accuracy: 10⁻⁵ – 10⁻⁴ Pa: ±15% 10⁻⁴ – 10⁻³ Pa: ±15% 10⁻³ – 10⁻² Pa: ±10% 10⁻² – 10⁻¹ Pa: ±10% Magnetic Field Voltage: 1700 V High-Voltage Pulsed Electric Field: 30 kV Open Distance of Switch Tube: Normal open distance in vacuum test Operating Environment: -20°C to 40°C Weight: 24 kg Dimensions: 420 × 320 × 280 mm |
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