Knowledge Base

Find useful information and videos on vacuum interrupters, electrical testing, and equipment maintenance. 

LATEST ARTICLES

Keep up with the latest information from Vacuum Interrupters and developments from across the electrical industry. Check back often as there are frequent updates.

PRESS RELEASES

Read the latest announcements from Vacuum Interrupters, including product releases, awards, and more.

LATEST VIDEOS

This video playlist from Vacuum Interrupters provides useful information regarding electrical system issues and their solutions.

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CBT-1203 Operational Video: Circuit Breaker Timing Test w/ Variable Power Supply & Breaker Controls
Learn how to install and operate the CBT-1203 to confirm proper breaker speed and clearing times as part of your maintenance program or arc-flash validation study. Product page: https://www.vacuuminterruptertesting.com/circuit-breaker-timer.htm
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Vacuum Interrupters CBT-1203 Circuit Breaker Timer With Variable Power Supply & Breaker Controls
Watch a demonstration of Vacuum Interrupters' newly-designed CBT-1203 circuit breaker timer performing close and open testing on a vacuum circuit breaker.
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CBT-1202 Circuit Breaker Timer Quick Overview
Learn about the CBT-1202 Circuit Breaker Timer with Chad Mullen of Vacuum Interrupters. The CBT-1202 is used to perform a three-phase contact timing test on medium voltage circuit breakers with an intuitive and user-friendly interface. Breaker-specific plugs make connection fast and efficient. More about the CBT-1202 on the VI website: https://www.vacuuminterruptertesting.com/circuit-breaker-timer.htm
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Circuit Breaker and Vacuum Interrupter Testing with the CBT-1203 and MAC-TS4 Test Sets
Vacuum Interrupters offers test sets for circuit breaker and vacuum interrupter testing that check the closing and opening speed of circuit breaker contacts and measure atmospheric pressure inside a vacuum interrupter to determine its life cycle. In this video, Chad Mullen presents a quick demo of the CBT-1203 Circuit Breaker Timer and the MAC-TS4 test set and describes the advantages and considerations for each.
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Vacuum Interrupters Inc CBT-1202 Product Video
Demo video of the Vacuum Interrupters Inc CBT-1202
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Vacuum Interrupters MAC-TS4 Installation and Operation
This demo video shows how to install and operate the Vacuum Interrupters MAC-TS4 for Magnetron Atmospheric Condition (MAC) testing.
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RESOURCES

Learn more about vacuum interrupters and testing with these white papers, presentations, and data sheets.

  • Vacuum Interrupters: Testing, Replacement, and Service DOWNLOAD

  • Predicting the Remaining Life of Vacuum Interrupters in the Field DOWNLOAD
  • Vacuum Interrupter Testing Using Magnetron Atmospheric Condition (MAC) Test Equipment DOWNLOAD
  • VACUUM INTERRUPTERS: PRESSURE VS. AGE A Study of Vacuum Levels in 314 Service Age Vacuum Breakers DOWNLOAD
  • Trust Magnetron Atmospheric Condition (MAC) testing to predict the remaining life of your vacuum interrupters DOWNLOAD
  • Medium-Voltage Vacuum Circuit Breaker Life Extension: An Approach Utilizing Industry Standardized Maintenance Intervals, New Testing Techniques, and Modern Replacement Parts DOWNLOAD
  • Get 3 test sets for the price of 1 with the new VITS60M DOWNLOAD

  • Get 3 test sets for the price of 1 with the new VITS75M DOWNLOAD

  • CBT-1203 Circuit Breaker Timer Product Sheet DOWNLOAD
  • High-Voltage Test Laboratory and Mechanical & Environmental Testing DOWNLOAD

  • Vacuum Interrupter Field Tests Solve Mystery of Failing Breakers at Wind Farm DOWNLOAD

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If you have vacuum interrupter failure, need equipment testing, or would like to discuss your requirements, contact us for immediate assistance.