Cable shielding layer anti-theft alarm device used for power distribution network
A cable shielding layer, anti-theft alarm technology, applied in the direction of the electric alarm, etc., can solve the problem of cable shielding stripping, etc., to achieve the effect of simple structure
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[0023] Such as figure 1 As shown, a cable shield anti-theft alarm device for distribution network includes a transmitter 1, a transmitting clasp 2, a receiving clasp 3, a receiver 4 and an alarm 5, and the transmitting clasp 2 and receiving The clasp 3 is installed on the outside of the cable, the transmitter 1 is connected to the transmitting clasp 2, and the receiving clasp 3 is connected to the receiver 4 and the alarm 5 in turn.
[0024] The transmitter 1 includes an AC power input port, a current rectification and filtering energy storage circuit 11, a damping oscillation circuit 12 and a signal generator 13, the described AC power input port is connected to a 220V AC power supply, and the damping oscillation circuit 12 The current rectifying and filtering energy storage circuit 11, the signal generator 12 and the transmitting snap ring 2 are respectively connected.
[0025] Described receiver 4 comprises preamplifier 41, digital band-pass filter 42, A / D converter 43, li...
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