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CN203193554U 矿用隔爆型风电闭锁真空磁力起动器 失效 - 权利终止

矿用隔爆型风电闭锁真空磁力起动器
摘要：
一种矿用隔爆型风电闭锁真空磁力起动器，包括主回路、显示模块、主风机控制回路、副风机控制回路和迎头电源控制回路五部分组成，其特征为：副风机控制回路装有实验按钮FSQA,实验按钮FSQA与主风机的接触器KM1的常闭触点KM1-4并联；迎头电源控制回路中，主风机隔离换向开关GHK1的常闭触点GHK1-2与接触器KM2的常开触点KM2-4串联后，整体与接触器KM1的常开触点KM1-6并联，启动按钮DQA与接触器KM3的常开触点KM3-4并联后与瓦斯断电仪连接，副风机运行时，常开触点KM2-4闭合，将主风机隔离开关GHK1扳至“停止”位后，按下手动按钮DQA可以手动打开迎头电源。
摘要（英）：

A mine-used explosion-proof wind-power locking vacuum magnetic starter is composed of five parts including a main circuit, a display module, a main fan control circuit, an auxiliary fan control circuit and a head-on power supply control circuit. The mine-used explosion-proof wind-power locking vacuum magnetic starter is characterized in that the auxiliary fan control circuit is equipped with an experimental button FSQA which is connected in parallel with a normally closed contact KM1-4 of a contactor KM1 of a main fan; and in the head-on power supply control circuit, a normally closed contact GHK1-2 of an isolation change-over switch GHK1 of the main fan and a normally open contact KM2-4 of a contactor KM2 are integrally connected in parallel with a normally open contact KM1-6 of the contactor KM1 after being connected in series, a start button DQA is connected with a gas powering-off instrument after being connected in parallel with a normally open contact KM3-4 of a contactor KM3, the normally open contact KM2-4 is closed when an auxiliary fan is running, and a head-on power supply can be manually switched on by pressing the start button DQA after the isolation change-over switch GHK1 of the main fan is pulled to a 'stop' position.

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