Megger VIDAR Vacuum Interrupter Tester

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  • Tests the integrity of vacuum interrupters quickly, safely and easily
  • User defined voltage selection
  • Extensive voltage range
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  • Description

    Megger VIDAR Vacuum Interrupter Tester

    The Megger VIDAR is used to verify the integrity of the vacuum interrupter (VI) chamber within a vacuum circuit breaker. Developed in close collaboration with leading vacuum circuit breaker manufacturer’s, the VIDAR can be used for commissioning and routine maintenance tests of all vacuum circuit breakers.

    Featuring five switchable voltage outputs of 10, 14, 25, 40 and 60kV DC, the Megger VIDAR is connected to each pole of a vacuum circuit breaker in order to quickly and safely test the circuit breaker. Furthermore, one additional bespoke voltage output of between 10 and 60kV DC can also be specified when ordering.

    Testing Vacuum Circuit Breakers

    Vacuum circuit breakers have many advantages over other kinds of dielectric circuit breakers such as oil filled devices, however it is vitally important to test the integrity of a vacuum circuit breaker to ensure quick and safe operation in the event of an electrical fault.

    By comparing the relationship between the breakdown voltage and the pressure within a vacuum circuit breaker, the Megger VIDAR is able to provide an electrical engineer with a quick and easy indication as to whether the device under test is fit for purpose.

    Vacuum Interrupter Common Faults 

    Faults The VI within a vacuum circuit breaker will not last forever. The Megger VIDAR can be used to verify faults which can lead to failure of the circuit breaker:

    • Leakages are likely to become apparent after many years of service, inevitably causing the vacuum chamber to fill with air. In many cases, once the leak has started, the decompression of the VI is a rapid process.
    • Mechanical misalignment can become an issue as carbon residue on the poles and the exterior surface of the vacuum interrupter can build up, meaning that the distance between the poles is reduced which can cause unsafe operation.

    Manufacturer Part Number: BR-29090

  • Specification

    Environment

    • Application field: The instrument is intended for use in medium and high-voltage substations and industrial environments.
    • Operating Temperature: 0°C to +50°C (32°F to +122°F)
    • Storage & transport Temperature: -40°C to +70°C (-40°F to +158°F)
    • Humidity: 5% – 95% RH, non-condensing

    CE-marking

    • LVD: 2006/95/EC
    • EMC: 2004/108/EC

    General

    • Mains voltage: 115 / 230 V AC (switchable), 50 / 60 Hz
    • Power consumption: 69 VA (max)
    • Protection: Overload cut-out
    • Instrument Dimensions: 250 x 210 x 125 mm (9.8” x 8.3” x 4.9”)
    • Transport case Dimensions: 460 x 430 x 210 mm (18.0” x 17” x 8.3”)
    • Weight: 6.9 kg (15.5 lbs), 10.7 kg (23.6 lbs) with accessories and transport case

    Indicators

    • Green lamp: Indicates an approved breaking chamber
    • Red lamp: Indicates a defect breaking chamber, lights up if the current exceeds 0.3 mA
    • Yellow lamp: Indicate that the test was interrupted

    Output

    • Standard voltages, switchable: 10, 14, 25, 40 and 60 kV DC
    • Customized voltage: Between 10 and 60 kV DC. Determined at the factory. Default voltage is 50 kV.
    • Ripple: Max 3%
  • Supplied Accessories

    • Megger VIDAR Vacuum Interrupter Tester
    • Permanently mounted cable set 5m (16 ft)
    • Ground (earth) Cable
    • Transport Case (GD-00030)
  • Product Documents

    Product Attachments

    View FileMegger VIDAR Vacuum Interrupter Tester Datasheet    Size: (264.41 KB)
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