HOOKSTICK SWITCH

The HH6 is a premium quality outdoor single pole, hookstick disconnect switch designed primarily for heavy duty substation applications.

LOW PROFILE HOOKSTICK SWITCH

The HH6V, with insulators mounted in a V-configuration, offers many advantages where mounting space is limited, and for installation on low profile structures.

DESCRIPTION

The HH is an outdoor, hookstick operated, air disconnect switch. The HH is constructed primarily of copper and bronze and is available in ratings from 7.5kV through 69kV nominal (8.25kV through 72.5kV maximum) and 600 through 4000 continuous amperes. The hookstick switch is premium quality and a heavy-duty design. An oversize operating ring and 4 to 1 mechanical pry-outs, aids the operator in operating the switch. A positive latch locks the switch in the closed position assuring that it will not open under the most adverse vibration or short circuit conditions.

APPLICATION

The HH is commonly used in substation applications such as transformer disconnecting, breaker isolating and bypassing as well as tandem transfer duty. Versatile designs offer many application solutions.

TESTING

The HH has been extensively tested to meet or exceed current ANSI standards. A comprehensive test brochure is available outlining electrical and mechanical design test conducted on the HH.

The HH45-6, is another popular low profile design.