The invention discloses a comprehensive monitoring device of an
overhead line. The comprehensive monitoring device of the
overhead line takes
electricity through the
high voltage and integrates the functions of circuit live display, short-circuit fault indication, load current detection, and ultrasonic bird repelling. The comprehensive monitoring device of the
overhead line comprises a micro controller unit which is connected with a B-phase power line, a load
current sensor, a short-circuit
current sensor I and a short-circuit
current sensor II, wherein electro-magnetic induction exists between the load current sensor and the B-phase power line, electro-magnetic induction exists between an A-phase power line and the short-circuit current sensor I, electro-magnetic induction exists between a C-phase power line and the short-circuit current sensor II, the load current sensor is electrically connected with the MCU, the short-circuit current sensor I is electrically connected with an LED
light source I, the short-circuit current sensor II is electrically connected with an LED
light source II, and the LED
light source I and the LED light source II are in
optical coupling with the MCU. The comprehensive monitoring device of the overhead line further comprises a high-
voltage capacitor I which is electrically connected with the A-phase power line, a high-
voltage capacitor II which is electrically connected with the C-phase power line, and a direct-current power supply circuit which is electrically connected with the high-
voltage capacitor I and the high-voltage capacitor II, wherein the direct-current power supply circuit is electrically connected with the MCU.