In this video I run through all the required NETA MTS tests to perform maintenance on a 5kV Medium Voltage Vacuum Circuit Breaker.

0:00 Intro
3:32 Visual and Mechanical Inspection
7:42 Manual Operation
8:22 Electrical Operation
10:28 Contact Timing Test
15:10 Insulation Resistance Tests
17:01 Contact Resistance Tests
19:10 E-Gap (Contact Wear Measurement)
20:45 Vacuum Integrity (Hi-Pot/Overpotential)
28:54 Lubrication and Final Thoughts

Background music from: freelofi.com

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