Aiming at the difficulty of remote monitoring of high voltage（ HV） switchgear in market lies in safety monitoring of its related parameters

a temperature monitoring system of HV switchgear based on improved rate adaptive algorithm is designed. In order to ensure the safety and real-time performance of the monitoring of HV switchgear

the system uses Lo Ra low energy consumption transceiver module to transmit the temperature terminal data of the bus of HV switchgear

and design the hardware

software and anti-jamming measures of the system. In order to transmit high quality data quickly with low power consumption

an improved rate adaptive algorithm is proposed

which is based on statistics

comprehensively analyze on quality and transmission channel of wireless receiving signal of node

and adjusts rate of data transmission node adaptively

and obtain higher throughput. The simulation results show that the optimized algorithm has great improvement in quickly adjust rate of transmission and increase throughput rate. The system based on the improved algorithm has achieved good effect in real operation of remote monitoring and control of KYN28—12 type HV switchgear.