USCO Power Switches

45

HOOKSTICK SWITCH

LOW PROFILE HOOKSTICK SWITCH

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 8.3kV through 72.5kV maximum (7.5kV through 69kV nominal) 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 HH6 is a premium quality outdoor single pole, hookstick disconnect switch designed primarily for heavy duty substation applications.

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

H O O K S T I C K S W I T C H

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

HUBBELL / USCO  – LEEDS, ALABAMA USA

SEPTEMBER 2013