On-line monitoring device for contact temperature rise of pole-mounted circuit breaker

The utility model discloses a pole-mounted circuit breaker contact temperature rise on-line monitoring device, which comprises three temperature measurement sensors and a receiving device, and temperature information is transmitted between the three temperature measurement sensors and the receiving device through wireless radio frequency. The three temperature measuring sensors are respectively arranged on an A-phase contact, a B-phase contact and a C-phase contact which are arranged at a high-voltage end, and the receiving device is arranged in an instrument cabinet at a low-voltage end, the pole-mounted circuit breaker contact temperature rise on-line monitoring device comprises the three temperature measuring sensors and the receiving device, the three temperature measuring sensors are respectively arranged on the A-phase contact, the B-phase contact and the C-phase contact which are arranged at the high-voltage end, and the receiving device is arranged in an instrument cabinet at the low-voltage end. Temp