Code: Vanguard VBT-60 / VBT-80
Description
VBT-60/VBT-80
vacuum bottle testers
The VBT-60 and VBT-80 are microprocessor-based, portable, dc (60 kV and 80
kV, respectively) vacuum bottle testers. These lightweight, portable testers are
designed for testing circuit-breaker vacuum bottles in the fi eld and at the shop.
Test voltages can be selected from 10 kV dc to 60 kV dc in 5 kV steps for the
VBT-60 and from 10 kV to 80 kV dc in 5 kV steps for the VBT-80. 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. If a fl ash-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-60 and VBT-80 feature a back-lit LCD screen (16 characters by 2 lines)
that is viewable in both bright sunlight and low-light levels. A turn-and-press
knob is used to control the unit. An RS-232C interface port is provided for factory
calibration and diagnostic testing.
Each unit is furnished with a 10-foot test cable that is terminated with a quickdisconnect
test clip. A transportation case is also included.
Standard accessories
Part number VBT-60 VBT-60 and cables
Part number VBT-80 VBT-80 and cables
Part number VBT-HV-CABLE Hight Voltage Cable
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