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Megger VIDAR Vacuum Interrupter Tester

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Megger's VIDAR is used for checking the integrity of vacuum interrupters used with vacuum circuit breakers. This powerful unit gives you the ability to quickly and conveniently test that vacuum interrupters (VI) are intact and working correctly before putting into operation.

Developed alongside leading manufacturers of vacuum circuit breakers, the VIDAR is built from the ground up to test the operational integrity of vacuum interrupters. The compact, lightweight design of the VIDAR makes it suitable for use in both field work, and shop floor applications.

The system works by a known relationship between flashover voltage and the vacuum interrupter under test. During the testing, a suitable test voltage from a selectable range from 10 to 60kV C is applied to the breaker. The VIDAR will then light a green lamp for approval of the VI, or light a red light if the vacuum interrupter is determined to be defective.

For added safety of the user, the Megger VIDAR includes two-handed control and a high voltage warning lamp.

VIDAR Tester Breakdown

Closer Look at the VIDAR

  1. 1) High Voltage Cable - used for connection of the test voltage and ground to the vacuum breaking chamber
  2. 2) Cancel Lamp - lights up when the test interval exceeds 1 minute, you try to conduct a one minute test less than two minutes after the latest test or when the high voltage indicator malfunctions
  3. 3) High Voltage Warning Lamp - shows when high voltage is currently being applied
  4. 4) Test Voltage Selector - with range from 10 to 60kV DC
  5. 5) Protective Earth - ground terminal
  6. 6) Large Test Clip Connectors - quick connection for a more efficient testing process
  7. 7) Test Safety Control Knobs - both most be turned simultanouesly to apply high voltage to the test object
  8. 8) Acceptable Green Lamp - lights up when the breaking chamber test result is positive
  9. 9) Defective Red Lamp - lights up when the breaking chamber test result is negative, when the flashover threshold voltage is too low

Megger VIDAR Vacuum Interrupter Tester Key Features

  • Tests the integrity of vacuum interrupters used in vaccum circuit breakers
  • Quick easy testing with acceptable and defective red/green lights
  • Selectable test voltages from 10 60kV DC
  • Compact, portable design equally at home in the field or for use in any area
  • Follows ANSI and IEEE standardised DC test methods
  • Developed in close collaboration with leading manufacturers of vaccum circuit breakers

What's Included?

  • Megger VIDAR Vacuum Interrupter Tester
  • Permanently-Mounted Cable Set (5m)
  • Ground Cable
  • Transport Case (GD-00030)
Part CodeBR-29090

Megger VIDAR Technical Specifications

Specifications are valid at nominal input voltage and an ambient temperature of +25°C. Specifications are subject to change without notice

Application Field The instrument is intended for use in medium and high voltage substations/industrial environments
Temperature Operating: -10 to +50°C (14 to +122°F)
Storage and Transport: -40 to 70°C (-40 to +158°F)
Humidity: 5 to 95% RH, non-condensing
LVD 2006/95/EC
EMC 2004/108/EC
General Specifications
Mains Voltage 115/230V AC (switchable), 50/60Hz
Power Consumption 69VA (max)
Protection Overload cutout
Dimensions Instrument: 250 x 210 x 125mm
Transport Case: 460 x 430 x 210mm
Weight 6.9kg (15.5lbs)
10.7kg (23.6lbs) with accessories and transport case
Green Lamp Indicates an approved breaking chamber
Red Lamp Indicates a defective breaking chamber, lights up if the current exceeds 0.3mA
Yellow Lamp Indicates that the test was interrupted
Standard Voltages, Switchable 10, 14, 25, 40 and 60kV DC
Accuracy 0 to -15%
Customised Voltage Between 10 and 60kV DC. Determined at the factory. Default voltage is 50kV
Ripple Max 3%
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