Abstract: A disconnect feature is provided for a circuit interrupter that is conveniently incorporated with the circuit interrupter. The disconnect feature is operable between closed and open positions, providing a visible open gap in the open position. The disconnect feature includes a pivotally mounted contact arrangement that is supported with respect to the circuit interrupter. The pivotally mounted contact arrangement cooperates with an interengaging contact carried by a contact terminal of the circuit interrupter. In specific arrangements, interlock features are provided to disable operation of the circuit interrupter when the disconnect feature is moved out of the closed position. In one arrangement, the disconnect feature is blocked from operation until the circuit interrupter is operated to an open circuit position.

Abstract: A double-sided break switch is provided which is operated by a double motion mechanism that rotates the blade about its own axis.

Abstract: A multi-pole group-operated switch configuration is provided for electrical distribution circuits. The switch configuration includes integral arrangements for sensing circuit parameters and supplying power for a switch operator of the switch configuration. The switch configuration includes a plurality of switch-pole units. In accordance with desired characteristics and features, one or more of the switch-pole units includes an integral current-sensing device, an integral voltage-sensing device, or an integral combination voltage and current-sensing device. The voltage-sensing device also provides operating power to power a switch operator and charge the batteries of the switch configuration.

Abstract: A disconnecting switch with improved contacts in the form of a spool contact having one or more circumferential V-grooves and a finger contact having fingers which are provided internally with spring members for maintaining contact pressure. Spaced plastic inserts provide a maintenance free bearing for rotation of switch members.

Abstract: A multi-pole group-operated switch configuration is provided for electrical distribution circuits. The switch configuration includes integral arrangements for sensing circuit parameters and supplying power for a switch operator of the switch configuration. The switch configuration includes a plurality of switch-pole units. In accordance with desired characteristics and features, one or more of the switch-pole units includes an integral current-sensing device, an integral voltage-sensing device, or an integral combination voltage and current-sensing device. The voltage-sensing device also provides operating power to power a switch operator and charge the batteries of the switch configuration.

Abstract: An electric circuit interrupter and associated mounting comprises an elongated support element of insulating material mounted for swinging movement about a fixed pivot and having a pair of movable contacts mounted thereon and engageable with fixedly mounted contacts, a circuit interrupter mounted on said elongated support element and having a pair of terminals respectively connected with the movable contacts, and an electric bus of conducting material connected with one of the movable contacts and having a plurality of points of connection for cooperating with one terminal of the circuit interrupter whereby circuit interrupters of different ratings and physical dimensions may be mounted on said elongated support element.

Abstract: A protective boot of flexible, insulating material for use in covering the grounded portions of a circuit interrupter and thereby preventing accidental shorting between the current carrying sections of the circuit interrupter and the grounded portions. The standard, pole-mounted circuit interrupter consists of a number of movable switches used in high voltage applications where shorting can be extremely damaging to the unit. The protective boot of the invention is fabricated in a number of separate parts which correspond to the individual grounded elements of the interrupter. Thus, when in place, the boot will substantially encase the entire grounded portion providing the requisite insulation. At the same time, due to the number of separate parts of the boot, installation on pole-mounted interrupters is easily accomplished, and at the same time, the moving parts of the switches remain unobstructed.

Abstract: A high voltage grounding switch adapted to ground high voltage power lines or other electrical equipment is provided with a two-part blade having toggle type action, with the toggle joint placed near the hinge pivot. The blade is then rotated from a fully opened position toward a closed position in which the blade end engages an overhead jaw type contact. The engagement of the blade end with a stop which is adjacent the jaw contact straightens the toggle and forces sliding engagement between the blade end and the jaw contact in an axial direction relative to the blade axis. A counterbalancing spring is connected from the switch support to the blade in order to at least partly balance the blade mass and to maintain the blade in a toggle-collapsed condition. The telescoping action of the blade in its stationary jaw contact provides a mechanical stop against blowout forces produced by fault currents.

Abstract: Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components. An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing. A lever arm assembly is mounted on the shaft and a link member is pivotably connected between the lever arm assembly and a first arm extending from a bellcrank member. The bellcrank member is mounted for rotation in the housing and has a second arm that is operably connected to one or more solenoids. Initially the link member and first arm are in an overcenter toggle position so that the insulator cannot be accidentally rotated. Energization of the solenoid causes rapid rotation of the insulator because the mechanical advantage of the system in such that maximum force is applied initially.

Abstract: A high voltage center break disconnect switch assembly having an integrally cast aluminum base usable as cast with provisions for shaft and gear adjustments without disassembling the switch and utilizing open stainless steel bearings.