Horizontal Circuit Switchers (CSH, CSH-B)
The most versatile and capable Horizontal Interrupter Circuit Switchers in the marketplace today.
The Southern States CSH and CSH-B horizontal interrupter circuit switchers are ideally suited for transformer protection providing up to 40kA primary fault clearing capabiltiy and 4kA secondary through fault clearing capability. All circuit making and breaking operations are accomplished in SF6, eliminating open air arcs. The horizontal interrupter circuit switcher is available with (Model CSH-B) or without (Model CSH) an integral vertical break switch.
The design of the CSH and CSH-B is extremely versatile and can be mounted in most any orientation including horizontal upright, vertical, and underhung positions. It can also be designed to mount on a Southern States supplied support structure or for mounting on a customer supplied or existing structure. The CSH-B is also ideal for mobile applications and can be supplied with composite interrupters that can be shipped pressurized.
In addition to transformer protection, the CSH and CSH-B can be used for line dropping, loop splitting, or as a series capacitor/reactor bypass switch.
CSH-B 230-20-1200 (Hoover Dam)
CSH & CSH-B Horizontal Interrupter Circuit Switcher Family Overview
| Maximum kV Rating | 38 kV - 170 kV | 245 kV | ||
|---|---|---|---|---|
| Primary Fault Interrupting | 25 kA to 40 kA | 20 kA | ||
| Interrupting Time | 5 cycle | 6 cycle | ||
| With Integral Disconnect | Yes (CSH-B) | No (CSH) | Yes (CSH-B) | No (CSH) |
- Circuit made inside the interrupter – No open air arcs
- Available with and without vertical break disconnect
- Visual dielectric indication
- Standard porcelain interrupter ships with minimal gas pressure for safety during transportation and in handling during installation. Can be shipped pressurized when composite housing is specified or protective shields are utilized
- Adaptable to a wide variety of mounting positions, structure heights, and phase spacings
- Ideally suited to upgrade fault interrupting capability of existing horizontal circuit switcher installations (all Mfgs), reusing the existing switcher’s structure and foundation.
- The only 40kA circuit switcher available for mobile applications.
- Southern States 5-year warranty promises trouble-free operation
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