Model no. HM6070;
Product name Vacuum Degree Vacuum Switch Tester;
Test object All kind of Vacuum Switches;
Test Method Non-disassembly measurement;
Use Range Multi-purpose, suitable for testing multi-style vacuum switches;
Test Range 10-5—10-1 Pa;
Test Accuracy 0.1mA;
AC current accuracy 0-5—10-4 Pa, 15%10-4—10-3 Pa ,15%10-3—10-2 Pa, 10%10-2—10-1 Pa ,10%.
HM6070 Vacuum Circuit Breaker Analyzer Test Introduction Video
Product Overview & Application Scenarios
Product Overview
The HM6070 Vacuum Tester features a novel excitation coil and data processing method, enabling non-destructive vacuum measurement. Highly practical, easy to operate, and delivering high measurement accuracy without disassembly, this instrument is widely used in industries employing vacuum switches, including power generation, steel, petrochemical, textile, coal, and railways.
technical Specifications
Model no.
HM6070
Product name
Vacuum Degree Vacuum Switch Tester
Test object
All kind of Vacuum Switches.
Test Method
Non-disassembly measurement.
Use Range
Multi-purpose, suitable for testing multi-style vacuum switches.
Test Range
10-5-10-1 Pa
Test Accuracy
0.1mA
AC current accuracy
0-5-10-4 Pa, 15%
10-4-10-3 Pa ,15%
10-3-10-2 Pa, 10%
10-2-10-1 Pa ,10%
Field Voltage
1700V
Pulse Field High Voltage
30KV
Switch space required
Normal space.
Working Enviroment:
-20℃~40℃
Host weight:
12kg
Size:
420×320×280(mm)
Sampler
Magnetic control coil
Test Principle
Pull and open two contacts pole of interrupter arc chamber for certain distance, applied high pulse voltage, placed interrupter arc chamber within spiral coil, or placednew electromagnetic coils outside the interrupter arc chamber, it will generate highvoltage sync pulse magnetic field in the interrupter arc chamber. Under the influenceof this strong electric field and pulsed magnetic field, the electrons in the interrupter arc chamber will move spirally, collide with residual gas and produce ionization, and between the ion current and the density of residual gas(the vacuum value)it is proportional. For different types of vacuum tubes (tube type), because of its different structure the value of ion current is not same under the condition of same contactsopen distance, same vacuum, same electric and magnetic fields. By some experiments, the corresponding relationship curve between different type tube's vacuum value and ion electrical source can be calibrated. As the ion current is detected, the vacuum value of this vacuum tube type can be obtained by the curve of ion current andvacuum. The sketch map of test circuit shows in Figure 1.
In the vacuum testing of the interrupter arc chamber with regular magnetron discharge method, in order to improve measurement sensitivity, the interrupter arc chamber must be removed from the circuit breaker and place inside the helical coil. As a result, the interrupter arc chamber reinstall in the circuit breaker, all parameters of testing device must be readjusted, all workload is numerous and professionals. In the HM6070 Vacuum Tester, new magnetic coil can be surrounded by the interrupter arc chamber from the side, so the interrupter arc chamber must be not disassembly.
At the same time, by using of single-chip computer performing synchronous control, data acquisition and processing, the sensitivity of vacuum field testing for the interrupter arc chamber can be improved enormously.
Product Details
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