Payment & Shipping Terms:
|Usage:||Vacuum Level Test For Vacuum Type CB||Advatage:||Test Under Without Removing The Vacuum Tube|
|Tested CB Kinds:||All Kinds Of Vacuum Tubes Of Vacuum Type CB||Vacuum Test Range:||9.999×10-1～1×10-6 /Accuracy :10%|
|Test Method:||Magnetron Discharge Method|
circuit breaker tester,
circuit breaker analyzer
Switch Vacuum Inspective Tester , Vacuum Level Analyzer For Vacuum Breaker , Vacuum Level Testing
I. Products Description and Application
For checking the insulation degraded level of vacuum circuit breaker , one common test method is by power frequency withstand voltage , however this way just find the defects that the degree of vacuum has been seriously deteriorated. When the vacuum degree has been deteriorated to 10-2----10-1 Pa, although the breakdown voltage did not decrease through power frequency withstand voltage test , the arc extinguishing chamber was still unacceptable.
The FKZK vacuum switch vacuum level tester uses a new excitation coil and uses the magnetron discharge method to test the vacuum of the arc extinguishing chamber without disassembling the arc extinguishing chamber. At the same time, the microcomputer is used for synchronous control and data acquisition and processing, so that the field test sensitivity in the arc extinguishing chamber can reach 10-5Pa. The most prominent feature of this instrument is the use of a new excitation coil and data processing method to achieve a vacuum measurement without disassembly. The instrument has the advantages of convenient use, simple operation, disassembly measurement and high test accuracy. It is a practical testing instrument and widely used in power, steel, petrochemical, textile, coal, railway and other departments that use vacuum switches.
II. Test principle of FKZK tester
Pull open a distance of the two contacts of arc extinguish chamber, apply pulse high voltage, encircle the magnetic coil around the outside on the arc extinguish chamber, connect a large current to the coil, which produces synchronous pulsed magnetic fields in the arc extinguish chamber together with high voltage, so that the electronic in the arc extinguish chamber makes spiral movements due to the pulse magnetic fields and with the collide ionization of residual gas molecules, the resulting ion current is approximately proportional to the residual gas density. For different tubes, in the same vacuum conditions, the ion current size is not the same, when the detect ion current, through an ion current-vacuum curve, the vacuum is automatically calculated by a computer, and the values is displayed.
III. Technical Parameters
|Vacuum measuring range||9.999×10-1～1×10-5||Humidity||≤80% RH|
|Ion current measuring range||9.999×10-1～1×10-6||Power||AC,220V,50 Hz±10%|
|Resolution||10-5 pa||Output high voltage||Impulse ≤30k V 15k Hz|
|Ambient temperature||-20℃～50℃||Weight||8 kg|
Contact Person: Sales Manager