The VBT-75 S2 is Vanguard’s second generation microprocessor-based, portable, 75kV dc vacuum bottle tester. This lightweight, portable tester is designed for testing circuitbreaker vacuum bottles in the field and at the shop.
Test voltages can be selected from 10 kV dc to 75 kV dc in 5 kV steps. The high-voltage test time can be set from 5 seconds to 2 minutes. The test voltage is raised to the selected voltage and held for the test time duration. After the test time duration has elapsed and the leakage current did not pass the preset value of 100 μA, 200 μA, or 300 μA, the test voltage is returned to zero and a “Pass” message is displayed. If a flash-over condition occurs, such as bottle failure, the test voltage is immediately turned off, a “Failure” message is displayed on the LCD screen, and the “TEST FAIL” LED light on the unit is also illuminated.
The presence of high voltage is indicated by an audible tone and an illuminated “HIGH VOLTAGE” LED light. For additional operator safety, an “ARM” switch must be held down during testing.
The VBT-75 S2 features a back-lit LCD screen (20 characters by 4 lines) that is viewable in both bright sunlight and low-light levels. A turn-and-press knob is used to control the unit. The VBT-75 S2’s firmware can be updated in the field via the unit’s built-in USB Flash drive port.
The VBT-75 S2 is furnished with a 10-foot test cable that is terminated with a quickdisconnect test clip. A transportation case is also included.
- 10 kV to 75 kVdc test voltages in 5 kV steps
- 100, 200, 300 micro-amperes programmable test current
- Displays test voltage and test current
- “Pass/Fail” indicator and message
- Very lightweight
- Shipping case included
VBT-75 S2是Vanguard的第二代基于微处理器的便携式75kV直流真空瓶测试仪。这款轻便,便携的测试仪为在现场和车间测试断路器真空瓶而设计。
测试电压可以选择10 kV dc至75 kV dc,步长为5 kV。高压测试时间可设置为5秒至2分钟。将测试电压升高到所选电压并保持测试持续时间。在测试持续时间结束并且泄漏电流未超过100μA,200μA或300μA的预设值后,测试电压返回到零并显示“通过”消息。如果发生闪络状态,例如瓶子故障,则立即关闭测试电压,LCD屏幕上显示“故障”消息,并且设备上的“TEST FAIL”LED灯也亮起。
高压的存在由可听音调和发光的“HIGH VOLTAGE”LED灯指示。为了提高操作员的安全性,在测试过程中必须按住“ARM”开关。
VBT-75 S2采用背光式液晶显示屏(20个字符×4行),可在明亮的阳光和弱光下观看。旋转按钮用于控制单元。VBT-75 S2的固件可以通过本机的内置USB闪存驱动器端口在现场进行更新。
VBT-75 S2配有一根10英尺长的测试电缆,端接一个快速断开测试夹。还包括运输箱。
- 10 kV至75 kVdc测试电压,5 kV步进
- 100,200,300微安的可编程测试电流
- 显示测试电压和测试电流
- “通过/失败”指示符和消息
- 很轻巧
- 包括运输箱
真空泡测试仪
产品功能和性能:
主要用来在现场和工厂测试真空断路器真空泡的真空度。
产品卖点:
1)自动测试,测试电压可以从直流10kV 到 75kV进行输出,步长为5kV;测试持续时间可以从5秒-2分钟进行选择和设定;
2)泄漏电流有3档:100, 200, 300微安,可编辑和预设;
3)显示测试电压和电流;
4)测试结束后,能显示测试结果“通过/失败” 信息;
5)USB闪存;
6)重量轻,10 lbs., 4.53 Kg。
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