Southern States CSH - Manual (Page 4)

Title: Southern States – CSH & CSH-B
Horizontal Interrupter Style Circuit Switchers
Product Specification Guide
3.05 Insulators
The circuit switchers shall be supplied with manufacturer furnished insulators in
accordance with the following table. The insulators shall be ANSI 70 gray in
color and porcelain in construction.
Voltage Class TR Number of the Required Insulator
38.0 kV TR 231
48.3 kV TR 267
72.5 kV
TR 276 on the non-rotating stacks
TR 278 on the rotating stacks
123 kV TR 286
145 kV TR 288
170 kV TR 291
245 kV TR 304
3.06 Terminal Pads
Terminal pads shall be unplated aluminum with 4 hole NEMA drilling pattern for
use with purchaser furnished terminal connectors. The terminal pads on both
ends of the circuit switcher shall be at the same elevation above the circuit
switcher base.
3.07 Operating Mechanisms
3.07.01 Shunt Trip Mechanisms
Each circuit switcher shall be provided with a spring stored energy shunt
trip mechanism per phase located under the rotating insulator stack to
provide high speed tripping. A single stored energy mechanism located
at ground level is not acceptable.
3.07.02 Motor Operating Mechanism
A rotational output motor operating mechanism shall be provided to reset
the opening and closing springs and to open and close the vertical break
disconnect switch blades on models furnished with disconnect switch
blades. Reciprocating output operating mechanisms are not acceptable.
The motor operating mechanism shall operate from full open to full
closed in 8 seconds, from full closed to full open in 8 seconds, and shall
generate 32,000 inch-pounds of output torque. The operating
mechanism shall be capable of being padlocked in both the open and
the closed positions. The ability to recouple in an incorrect position shall
be positively prevented. The motor operator shall be Southern States
Page 4 of 9 Publication No.: PSG-803-032615