The new type DC solid state relay is a kind of new contactless switching device, with the new type IGBT and power field effect tube as the core and composed completely by solid state electron devices.
新型直流固态继电器是一种以新型器件IGBT以及功率场效应管为核心的，全部由固态电子器件组成的新型无触点开关器件。
It also indicates that the accuracy and reliability of time retardation for arc extinction can be increased by replacing traditional extinction relay with electron extinction circuit.
采用电子消弧电路取代传统的消弧继电器，提高了消弧延时的精确性和可靠性。
It also indicates that the accuracy and reliability of time retardation for arc extinction can be increased by replacing traditional extinction relay with electron extinction circuit.
采用电子消弧电路取代传统的消弧继电器，提高了消弧延时的精确性和可靠性。
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