Table 1 Mechanical requirements of vacuum interrupter.

From: Research on dynamic modeling and control strategy of motor driven operating mechanism for 126 kV high voltage vacuum circuit breaker

Parameters

Value

Clearance between open contacts

60 mm

Overtravel

24 mm

Average closing speed\(^\textrm{a}\)

1.3 ± 0.2 m/s

Closing time

60–90 ms

Rated contact pressure

6000 N

Initial pressure at contact

4800 N

Contact bouncing duration at closing operation

\(\leqslant\) 5 ms

  1. \(^\textrm{a}\)The average closing speed refers to the average speed of the moving contact as it moves from a 30\(\%\) contact gap to the contact closed position (corresponding to a motor angle range of \(23^\circ\) to \(34^\circ\))
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