Product Description

Lightweight, portable vacuum bottle tester

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

Cable	Part Number
[8000-0016] Power + Ground Combination Cable	8000-0016
[8000-0088] VBT High Voltage Cable [ 10′(3.05m) ]	8000-0088
[8000-0092] VBT High Voltage Return Cable [ 10′(3.05m) ]	8000-0092

 

PHYSICAL SPECIFICATIONSDimensions: 17”W x 10.5”H x 6.5” D (42.7 cm x 26.9 cm x 16.5 cm)
Weight: 10 lbs. (4.53Kg)

INPUT POWER 90 – 240 Vac, 2 A, 50/60 Hz

OUTPUT VOLTAGE 10 kV – 75 kV DC in 5 kV steps; accuracy: 1.5%

OUTPUT  RIPPLE VOLTAGE 3% max

DISCHARGE TIME maximum discharge time for internal high voltage is 3 seconds

DISPLAY back-lit LCD (20 characters x 4 lines); viewable in bright sunlight and low-light levels

FAILURE INDICATOR failure indicator LED illuminates when test current exceeds 100 μA, 200 μA, 300 μA (programmable)

CONTROL single turn-and-press knob

FIRMWARE UPDATES firmware can be updated in the field via the unit’s built-in USB Flash drive interface

TEMPERATURE Operating: -10°C to +50°C (+15°F to +122°F)

Storage: -30°C to +70°C (-22°F to +158°F)

HUMIDITY 90% RH @ 40°C (104°F) non-condensing

ALTITUDE 2,000 m (6,562 ft) to full safety specifications

CABLES one 10-foot (3.05m) high-voltage cable, one 10-foot (3.05m) high voltage return cable, one ground cable, one power cord

FURNISHED ACCESSORIES shipping case

WARRANTY one year on parts and laborSpecifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F).
Last updated on March 18, 2015