home | about Cooper Power Systems | C3 - Cooper Customer Center | Cooper Industries | contact us

Three-Phase Hydraulic Reclosers
W, VW, WV, and VWV

Kyle® W-group three-phase, hydraulically controlled automatic circuit reclosers provide reliable, economical overcurrent protection for distribution circuits rated through 38 kV. Compact and self-contained in operations, these reclosers can be easily installed on poles and in substations. Employing the service-proven hydraulic control, the W-group reclosers can be readily coordinated with circuit breakers, sectionalizers, fuses, and other reclosers on the distribution system.

  • W and VW reclosers protect systems rated 2.4 through 14.4 kV.
  • WV27 and VWV27 reclosers protect systems rated through 24.9 kV.
  • WV38X and VWV38X reclosers protect systems rated through 34.5 kV.

Tripping is initiated by a series trip coil that releases the stored-energy trip mechanism when an overcurrent occurs. A closing solenoid supplies the energy for contact closing and also stores energy in the trip mechanism. Low-voltage closing solenoids can be used if auxiliary voltage is supplied to the recloser.

Dual time-current characteristics permit coordinating W-group reclosers with other protective devices on a distribution system. A choice of four delayed characteristics allows flexibility in system coordination. Ground tripping is available as an accessory. A variety of operating, indicating, and service accessories extends the normal flexibility of reclosers in the W-Group even further.

  • W, WV27, and WV38X reclosers use oil as the arc-interrupting medium. Movable bridge-type contacts provide two breaks in series on each phase. Separate self-generating interrupter chambers at each of the two breaks effectively interrupt all currents from minimum load to rated maximum fault.
  • VW, VWV27, and VWV38X reclosers use vacuum as the arc-interrupting medium. A single break on each phase is accomplished by separating contacts inside the vacuum interrupter. All arcing is contained within the vacuum envelope.