The Mark VI Circuit-Switcher offers the latest in interrupter technology. It features a 31.5-kA fault-interrupting rating and 3-cycle interrupting time with simultaneity of less than ¼ cycle. No shunt-trip device is needed. The Mark VI Circuit-Switcher is significantly lighter than the Mark V Circuit-Switcher, is easier to install, and has reduced maintenance requirements.

The Mark VI Circuit-Switcher uses the same rugged integral disconnect as the Mark V, making it perfect for use with pre-insertion inductors.

Simplified design and complete factory assembly and testing mean the Series 2000 Circuit-Switcher can be relied upon to function properly day in and day out. And S&C’s comprehensive, easy-to-follow inspection recommendations, keyed to typical transformer inspection schedules, ensure the Circuit-Switcher continues to perform properly. The Series 2000 Circuit-Switcher’s reliability is backed by S&C’s 5-year warranty!

The tower-mounted device installs into existing rightaways without the need to secure a permit or buy land, allowing you to efficiently sectionalize transmission lines, transfer loads, and connect new customers. These power-operated Circuit-Switchers can be SCADA-operated even in the most remote locations.

Mark V Circuit-Switchers are available in a variety of mounting styles with optional pre-insertion inductors for use in single-bank and multiple-bank (back-to-back) capacitor switching. When fitted with these pre-insertion inductors, the device can minimize capacitor-bank switching transients, markedly improving power quality and reliability.

Mark V Circuit-Switchers are available with continuous current ratings of 1200, 1600, and 2000 amperes.

The Mark V Circuit-Switcher uses an in-series circuit-breaking interrupter and a circuit-making and isolating disconnect, making it especially suited for the switching and protection of transformers, lines, cables, capacitor banks, and line-connected or tertiary-connected shunt reactors. The Mark V Circuit-Switcher is available in three styles—Vertical-Break, Center-Break, and Integer.

Electric utilities face ever-increasing demands to reduce costs and improve reliability. Until now, these goals were mutually exclusive when it came to transformer protection. You could either select a higher-cost transformer switch with advanced protection capabilities, such as a circuit-switcher or circuit breaker, or you could choose a lower-cost device with limited protection capabilities, such as power fuses or a high-speed ground switch.

But now there’s a device that meets both goals. S&C’s Trans-Rupter II Transformer Protector is designed exclusively for primary-side protection applications on distribution substation transformers. It gives you all the features you need for reliable transformer protection, and it eliminates those you don’t. With its simple installation procedure and no periodic maintenance needs, the Trans-Rupter II Transformer Protector not only ensures low installed cost, but low operating costs as well.

The Mark VI Circuit-Switcher offers the latest in interrupter technology. It features a 31.5-kA fault-interrupting rating and 3-cycle interrupting time with simultaneity of less than ¼ cycle. No shunt-trip device is needed. The Mark VI Circuit-Switcher is significantly lighter than the Mark V Circuit-Switcher, is easier to install, and has reduced maintenance requirements.

The Mark VI Circuit-Switcher uses the same rugged integral disconnect as the Mark V, making it perfect for use with pre-insertion inductors.

The S&C Line-Rupter Switch is a group-operated switch that uses three independent sealed-for-life interrupters with integral disconnects. It is exceptionally suited for unique mounting applications, including transmission line tower mounting, existing substation structure mounting, and inverted mounting.