Portable Vacuum Contact Switches
Watteredge Portable Switches are available in our patented matrix design, Slim Line and custom configurations. The Portable Shorting (Jumper) Switches utilize vacuum contact modules and incorporate solid state control logic for programmed switch opening and closing. 30kA through 250kA designs are available.
Matrix Switch
The Matrix Shorting Switch utilizes a number of current-carrying elements, each containing a vacuum contact module and a pneumatic actuator. The switch elements are arranged in a patented matrix configuration, which minimizes the stored inductive energy during switch opening. For the opening sequence, the conductor elements open first, followed by the designated sacrificial positions. The resistor elements are the last to open, dissipating the inductive energy after opening the switch conductor elements. This entire sequence occurs in less than 0.5 seconds. The designated conductor sacrificial elements require periodic maintenance after 250 operations at full load.
Each element is actuated by an individual valve-in-head pneumatic cylinder. The elements are controlled by a solid-state logic sequencer which provides the delays for the interruption elements.
| Switch Rating (kA) |
Resistors | Conductors | Total Elements |
Designated Sacrificial Conductor Elements |
|---|---|---|---|---|
| 70-100 | 2 | 9 | 11 | 1 |
| 110-140 | 4 | 12 | 16 | 2 |
| 150-190 | 6 | 15 | 21 | 4 |
| 200-250 | 8 | 27 | 35 | 9 |
Slim Line™ Jumper Switch
The Slim Line Portable Jumper Switch was developed for special cell lines that require a compact high current switch assembly used in narrow aisle ways. These switches utilize the Vacuum Contact Technology - Fixed-Switch. Typical features include:
- Flexible, water cooled, copper cables or semi-rigid, copper arms for 30kA and greater ampacity requirements, with remote, contained, water flow sump system.
- Convection air cooled below 38kA.
- Rotating arm assemblies, water cooled for 38kA or greater ampacity requirements, with remote, contained, water flow sump system.
Custom Portable Switches
Watteredge engineering can design a portable switch to meet your needs. We have the capability to integrate Electrical, Pneumatic, Water and Controls in to a complete portable switching package.
Service Alarm Systems Options
- Over Temperature Warning Alarm
- Loss of Water Flow Alarm
- Loss of Air Pressure Alarm
- Switch Closed (shorted) / Open Indicator
- Redundant Alarm Indication
Switch Transport System Options
- Wheel Transport
- Crane/Monorail Transport
- Lift Truck Channel
Portable Shorting Switches
- Technical Specifications
- Matrix and Non-Matrix Designs
- Air Cooled Designs
- Water Cooled Designs
- On-board Air Accumulator for Emergency Use in the Event of Loss of Primary Air Supply
- Flexible Copper Laminate Terminals
- Stepped Current Control for Cell Protection
Applications:
- Shorting of Electolytic Cells (SPST) Single Pole Single Throw
- Circuit Grounding
Industries (Typical):
- Chlori-Alkali
- Copper Refinery
- Aluminum
- Magnesium
- Manganese Dioxide
Product Resources
- Technical Specifications
- Application Questionnaire
- Photo Gallery
