The application relates to a temperature measuring RTD grounding
protection system, a multi-path grounding execution matrix module comprising a plurality of electromagnetic relays connected to and controlled by a master
control unit, each lead of the RTD being connected to a common end of a
relay contact; the normally open end of the
relay contact being used for connection to a grounding
bus. A grounding state inspection module comprises a sampling
resistor connected in series in each grounding loop, and a measurement circuit connected to the master
control unit, the measurement circuit being connected to the sampling circuit and detecting an electrical parameter between the two ends of each sampling
resistor; a safety
interlocking interface module is connected to the master
control unit. The control method of the temperature measuring RTD grounding
protection system is based on the temperature measuring RTD grounding
protection system. The temperature measuring RTD grounding protection
system and the control method thereof provided by the application adopt a
relay contact array driven by a master control unit, and each lead of each RTD is independently connected to a corresponding relay contact, thereby realizing centralized switching of the grounding states of all RTD leads and improving operation efficiency and reliability.