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Installation & Adjustment Procedures
5. Operating Mechanism
5.1. These switches are designed to be opened and closed as a three-phase unit by a
system of pipes that translates the rotational movement of an operator on the ground
(whether manual or motor) to simultaneous rotation of the end insulator of each switch
pole.
5.2.
shows a typical operating mechanism for a 145kV vertical break switch.
shows alternate operating mechanism designs, each of which is employed
as being the simplest arrangement for a given structure. In all cases, however, the
operating principle remains the same, and the methods of installation and adjustment
are virtually identical.
Figure 13: Typical Operating Mechanism for EV-2H
Figure 14: Alternate Operating Mechanism Designs