Scada-Mate® Switching Systems

Featuring the Scada-Mate Switch

Scada-Mate Switches are integer style three-pole, group- operated load interrupter switches available in voltage ratings of 14.4 kV through 34.5 kV. They’re factory-assembled on a one-piece base and include an integral stored-energy operating mechanism.

Circuit making and breaking are accomplished within sealed interrupters, in a controlled SF6 environment. The high-speed linkages used to effect operation are housed within the base. With no external moving parts, full live-switching performance is assured under any and all ice conditions. Visible air-gap isolation of switched-open circuits—needed only when work on the feeder is required —is provided by an integral, hookstick-operated three-pole disconnect.

Two S&C Current Sensors and one S&C Current/Voltage Sensor provide three-phase monitoring of line current and single-phase monitoring of system voltage. The voltage sensor(s) also provides 20-VA continuous battery-charging power for the control, as discussed below, eliminating the need for a separate distribution transformer. All sensors are of S&C Cypoxy® construction and serve as support insulators for the switch live parts—eliminating the cost, clutter, and complexity associated with separately mounted sensors.

Scada-Mate Switches feature a five-time duty-cycle fault-closing rating of 20,000 amperes RMS asymmetrical. The ability to close into a fault and remain capable of carrying and interrupting current is a must for any distribution-automation switching device.

Controls to Match Your Automation Objectives

A complete S&C Scada-Mate Switching System includes a Scada-Mate Switch and a control. S&C offers a variety of controls to match your automation objectives.

• Model 5801 Automatic Switch Control provides remote reporting of switch status points, current, voltage, watts, and VARs via a variety of protocols, and supportsthe IntelliTEAM II® Automatic Restoration System. This unique peer-to-peer distributed intelligence system does not require intervention of a system dispatcher to isolate a fault and restore service to all but the faulted line section.
  
  The control includes a high-output battery charger with unique battery management system, as well as rechargeable sealed-lead starved-electrolyte battery packs, powered from a user-supplied 120-Vac control source or three voltage sensors. The control additionally features a liquid-crystal display for viewing real-time data, settings, and fault events. It offers automatic sectionalizing and overcurrent fault detection capabilities, and selectable shots-to-lockout. All components of each device are neatly packaged in a single corrosion-resistant enclosure, simplifying installation and minimizing checkout time.
  
  
• Communication and Control Unit is a custom- engineered package which includes a user-specified, factory-installed-and-wired remote terminal unit and communication device; a temperature-compensated, constant-voltage battery charger with rechargeable sealed-lead starved-electrolyte battery packs; and a switch control with open/close push buttons, switch-position indicating lamps, disconnect-closed-and- latched indicating lamp, local/remote switch, and operation counter. All components are neatly packaged in a single 316L stainless-steel enclosure, simplifying installation and minimizing checkout time.
  
  The charger is powered by the S&C Voltage Sensor or, in a higher-output version with unique battery management system, from a user-supplied 120-Vac control source. The charger features integral load-disconnect circuitry to prevent deep-discharge of the batteries on loss of ac source, plus alarms for loss of ac source, battery low voltage, and charger overvoltage. It also includes circuitry to effect a battery load-test feature, when used in conjunction with a suitable RTU.