VC-VII Vacuum Degree Tester VC-VII Vacuum Degree Tester VC-VII vacuum degree tester is the seventh generation of the VC series and inherits the previous functions. The LCD is designed on the panel for users. The number of curves and the corresponding model of the vacuum interrupter are stored in the tester; the user can perform the test without instruction. The tester stored 43 pcs of update curves of interrupters that are corresponding to more than 300 types of overseas and domestic vacuum interrupters. It displays the waveforms of the leakage current and ionization... View full description Tags   Vacuum   Degree   Tester   Address: E street, Xi an, Shaanxi, China Phone: 86-29-84683900 - Fax: 86-29-84683769

Detailed Product Description

VC-VII Vacuum Degree Tester VC-VII vacuum degree tester is the seventh generation of the VC series and inherits the previous functions. The LCD is designed on the panel for users. The number of curves and the corresponding model of the vacuum interrupter are stored in the tester; the user can perform the test without instruction. The tester stored 43 pcs of update curves of interrupters that are corresponding to more than 300 types of overseas and domestic vacuum interrupters. It displays the waveforms of the leakage current and ionization current, from which the clients can judge there is the rod discharge or not in the ionization current. 1. Ionization charge sampling technique 2. VC series Vacuum Tester have adopted sampling technique of ionization charge. In the research of magnetic-control discharge, experts of our company have discovered the following phenomenon: when outer stimulated power, size of VI and adopted material in steady condition, vacuum inside of VI will have exact homologous relation with the ionization charge amount; but have only probability relation with peak value of ionization current. Therefore, based on this research, our company has initially created the sampling technique of ionization charge, which has greatly improved the veracity of VI system vacuum measuring. 3. Disposal of leakage current 4. Leakage current with different values of microamperes may appear when applying high voltage to two sides of VI in breaking condition. It may differs greatly even to VI system with same type. Especially to those VI system have mounted on switchgear, as leakage current occurs surrounding insulating supporting parts, the total sum of leakage current is unsteady and unforeseeable, further it is value is close to the ionization current of VI 10E-4Pa. The leakage current is deducted by the methods of starting high voltage two times, which ensure the VI system vacuum metering accuracy whether it is mounted on switchgear or not. 5. Distinguish entirely-leak VI. 6. To distinguish the VI whether entirely-leak by method of high voltage breakdown for VC-VIB type VDT. 7. PC control measuring, leakage rate calculation and forming measuring data-base. 8. This part is an optional one. The tube type, current or vacuum degree and the data-base are rectified by interface. PC instrument control whole measuring process, display results and store data into rectification pointed data-base. The leak rate calculation can be done by controlling interface after two-times measuring for same VI. 9. Equipped complete measuring curves of vacuum interrupter at home and abroad 10.Owing to the difference of VI geometric size and materials, when inner vacuum and outer stimulate power kept steady, the charge amounts of discharge will be different, and has great discrepancy. To ensure the accuracy of measurement, each VI shall have its corresponding calculation curves from ionization charge amount to vacuum. Through close cooperation with domestic...

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