Switchgear maker rolls out storm-hardened distribution equipment

Distribution switchgear maker Trayer Engineering Corp. rolled out its ALTA Series of storm-hardened overhead vacuum switches for medium-voltage distribution systems.

Designed for mounting on steel-reinforced, concrete utility poles, Alta Series switchgear are equipped to withstand Category 5 hurricane strength winds, heavy rain, dust and debris.

The ALTA System is made up of two pole-mounted units: a liquid-insulated, motor-operated vacuum switch and control cabinet designed to meet IP68 standards. The vacuum switch unit is equipped with field-replaceable porcelain bushings with provision for lightning arrestors and visual indication of switch position.

The linear actuator can be decoupled from the switch handle to allow for manual operation. The heated control cabinet is designed to remain operational under storm flood conditions. The unit features pendant control access for field operation, battery backup and easy access to SEL relay control panel and SCADA hardware.

ALTA Series units are offered with 5kV, 15kV and 25kV ratings. All feature Trayer's signature welded 304 stainless steel, storm-hardened construction and SEL relay controls.

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