| 摘要 |
Provided is a three-stage withdrawal device of a low pressure motor control panel unit. In a state in which a unit of a low pressure motor control panel is connected to a fixed distribution bus bar, a distributor, and a tertiary control plug, the unit in a draw-out state is manually moved to a disconnected position in a state of being connected to a secondary power plug and the tertiary control plug, and the unit is moved to a test position and a connected position by moving only a primary power plug in a screw manner. Thus, when the connection of the secondary power plug and the tertiary control plug and the connection of the primary power plug are separated, connection pressure at each connected position can be lowered, whereby impact to the distributor is reduced and an operator can draw in and out the unit with less power when the unit is connected. |
