四工位负荷开关 35kV 4-Position Loadbreak Switches

Eaton（Cooper）四工位油浸式负荷开关 35kV Four-Position Sectionalizing Loadbreak Switches (LS4BH3T16B, LS4BH3R16B)

Eaton's Cooper Power™ series four-position sectionalizing loadbreak switch is designed for use in transformer (mineral) oil, Envirotemp™ FR™ fluid, or an approved equivalent fluid-filled padmounted transformers or distribution switchgear. The switches meet the full requirements of the latest revision of both IEEE® and IEC standards.

Sectionalizing switches can be used on single- and three-phase grounded wye or delta systems. They are used in underground residential applications with loop feed, and in three-phase commercial industrial installations where the ability to use an alternative source of power is necessary. They can also be used to switch on and off a primary cable tap on a transformer.

The under-oil switch can be installed near the transformer core/coil assembly, thus minimizing cable capacitance. With cable capacitance minimized and all three phases switched simultaneously, the likelihood of ferroresonance is greatly reduced. All switches are hotstick operable and available in several different blade configurations (Refer to Table 4).

Eaton's Cooper Power series sectionalizing switches rotate 360˚ in either direction for alternate source selection. An externally installed limiting plate prevents rotation to positions other than the one desired. A spring-loaded activating mechanism ensures quick loadbreak action and positive contact engagement through all positions.

The Make-Before-Break (MBB) switches provide uninterrupted power during switching.

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