Horizontal Line Switchers (LSH, LSH-B)
Most Versatile and Capable Horizontal Interrupter Line Switchers Available
Southern States LSH and LSH-B horizontal interrupter line switchers provide load breaking, loop splitting, and line dropping capabilities for your most critical line switching applications. Additional applications include transformer magnetizing current interrupting and cable switching. All circuit making and breaking operations are accomplished in SF6, eliminating open air arcs. The horizontal interrupter line switcher is available with (Model LSH-B) or without (Model LSH) an integral vertical break switch. Both models can be supplied with either a manual operator or motor operator.
The LSH and the LSH-B are also well suited for such special purpose applications as series reactor or capacitor bypass switching.
The design of the LSH and LSH-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.
LSH 138 kV, 1200 A
LSH & LSH-B Horizontal Interrupter Load & Line Switcher Family Overview
| LSH-B | LSH | |
|---|---|---|
| Maximum Voltage | 38 kV to 245 kV | |
| Integral Disconnect | Yes | No |
- Circuit Made inside the interrupter – No open air arcs
- Available with and without vertical break disconnect
- Visual dielectric indication
- Fault close rating of 40 kA
- Readily adaptable for mounting on existing structures
- Single gap interrupters provide full BIL without the need for an integral disconnect switch or voltage grading resistors/capacitors
- Simple, easy erection minimizes field installation time required—all kV ratings ship with the insulators factory assembled and adjusted as standard
- 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.
- Adaptable to a wide variety of mounting positions, structure heights, and phase spacings
- The only makes-the-circuit-in-the-interrupter line switcher available in the industry
- The only available non-blade model line switcher (type LSH)
- Southern States 5-year warranty promises trouble-free operation
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