2
supply during the test is effectively suppressed, and the test is stable and reliable. The
instrument uses the secondary sampling method to deduct the leakage current due to
environmental factors, and considers the determination of the completely leaking
vacuum interrupter during the measurement process, and truly achieves the correctness
of the vacuum interrupter installed on the whole machine. Accurate measurement. At
present, there are 35 measurement standard curves of vacuum interrupter in this
instrument, covering most tube types at home and abroad. The instrument has excellent
quality, reliable performance, beautiful appearance and convenient use.
Performance characteristics
：
1. Sampling technology based on ionizing charge
All vacuum testers use sampling technology based on ionized charges. Our company’s
experts discovered in the study of magnetron discharge: when the external excitation
power supply, the geometric size of the vacuum interrupter, and the materials used are
certain, the vacuum degree in the vacuum interrupter has a very accurate
correspondence with the amount of ionized charge. The peak value of ionization current
is only indirectly related to probability. Therefore, our company pioneered the sampling
technology based on ionization charge, which significantly improved the accuracy of
vacuum measurement in the vacuum interrupter.
2. High and low pressure tube type test
This machine additionally applies two gears (high voltage 30,000 and low voltage 2.5) to
the test voltage output, so it can effectively test various types of tubes with different high
and low voltages.
3. Built-in measurement curves of almost all vacuum interrupters at home and abroad
Due to the different geometrical dimensions and materials of the vacuum interrupter,
when the internal vacuum degree and the external excitation power supply are constant,
the amount of discharge charge is different, and there are considerable differences. For
accurate measurement, there must be a corresponding deduction curve from ionization
charge to vacuum degree for each vacuum interrupter. Through close cooperation with
major domestic vacuum interrupter manufacturers, our company’s experts have obtained
