使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。
Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.
要切换到压缩机，可以通过电流接触器开关，继电器或者双向可控硅来控制电流盒或者电路板。
Control electric box or circuit board with contactor, relay, or triac that switches to the compressor.
在分析和设计继电器-接触器控制电路时，往往忽视临界竞争现象，结果造成电气控制达不到预期目的，甚至造成事故。
In the practice of analyzing and designing of relay-contactor circuits, the critical-competition phenomenon is usually ignored, causing failures in reaching the intended purpose or even damages.
控制电路通过水位检测信号，利用继电器和接触器控制排水机构。
The control circuit controls the water drainage mechanism using a relay and a contactor by the water level detection signal.
本实用新型属于一种控制焊机启闭的焊把式控制器，其主要由变压器、接触器、继电器、开关指示电路所组成。
The utility model belongs to a welding holder type controller used for controlling the on-off of a welder, mainly comprising a transformer, a contactor, a relay and a switch indicator circuit.
本实用新型属于一种控制焊机启闭的焊把式控制器，其主要由变压器、接触器、继电器、开关指示电路所组成。
The utility model belongs to a welding holder type controller used for controlling the on-off of a welder, mainly comprising a transformer, a contactor, a relay and a switch indicator circuit.
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