CN102446385B - Anti-theft remote alarming device of transformer - Google Patents

Abstract

The present invention is a remote alarm for transformer theft, including a signal acquisition circuit, a signal judgment circuit, and a remote alarm circuit; the signal acquisition circuit collects the theft signal from the upper peripheral connection line of the transformer body, and outputs and connects the signal judgment circuit, The output of the signal judgment circuit is connected to the remote alarm circuit, and the remote alarm circuit transmits the signal to the distribution network intelligent control center or the electrician's mobile phone; when the transformer is stolen, the signal acquisition circuit collects the signal, and the judgment circuit judges that the transformer is indeed stolen. To destroy the theft, the signal will be sent to the alarm transmitting circuit for remote alarm immediately, and the on-duty personnel will go to the scene to deal with the alarm situation as soon as possible; the remote alarm is developed by using advanced electronic technology for transformer safety and intelligent management. , Reduce accidents, increase power supply, and increase corporate and social benefits.

Description

Transformer anti-theft remote alarm

technical field

The invention relates to a transformer anti-theft remote alarm technology, which is applied to remote alarm when a power supply transformer of a distribution network is stolen.

Background technique

At present, with the rapid development of industrial and agricultural production, the rapid improvement of the national economy, the continuous improvement of people's living standards, the unprecedented development of the power industry, and the rapid development of the national power grid construction. Electricity is transformed and sent to thousands of households through distribution transformers. Currently operating distribution transformers cannot be monitored in real time, especially when rural distribution transformers are basically stolen, and the user will notify the maintenance personnel to carry out equipment maintenance. It takes a long time to deal with the delay, which has a great impact on users' power outages. Therefore, the reliability of power supply is low and the equipment damage rate is high, which cannot meet the requirements of the continuous improvement of people's living standards. In the event of a theft accident, the maintenance personnel will go to the scene to stop and repair it in time, reduce the transformer theft accident, increase the power supply, and increase the enterprise and social benefits.

Contents of the invention

The invention aims at the deficiencies of the existing anti-theft technology for transformers, thereby providing a remote intelligent alarm device for anti-theft transformers with scientific design and low cost.

In order to achieve the above object, the present invention provides a transformer anti-theft remote intelligent alarm, including a signal acquisition circuit, a signal judgment circuit, and a remote alarm circuit;

The signal acquisition circuit collects the theft signal from the peripheral connection on the upper end of the transformer body, the output is connected to the signal judgment circuit, the output of the signal judgment circuit is connected to the remote alarm circuit, and the output signal of the remote alarm circuit is sent to the distribution network intelligent control center, or an electrician's phone.

The signal acquisition and signal judging circuit includes a power switch, a relay, a resistor, a capacitor, a diode, a transistor, and an insulated wire around the transformer body; the transistor has three poles: B, C, E; one end of the power switch is connected to the negative pole of the power supply, the other end of the power switch is respectively connected to the E pole of the transistor, one end of the capacitor, and one end of the insulated wire, and the B pole of the transistor is respectively connected to the other end of the capacitor, The other end of the insulated wire, one end of the resistor, and the C pole of the transistor are respectively connected to one end of the relay coil and the positive pole of the diode, and the other end of the resistor, the other end of the relay coil, and the negative pole of the diode are respectively connected to the positive pole of the power supply.

The optical fiber communication cable circuit includes an optical transmission circuit and an optical fiber cable; the optical transmission circuit converts the transformer theft signal into an optical signal, and transmits it to the power distribution intelligent control center through the optical fiber cable; when the transformer is stolen, the remote intelligent The alarm device is coded according to regulations through the transmitting circuit of the optical transceiver, and the signal is converted into an optical signal and transmitted to the distribution intelligent control center through the optical fiber cable.

The remote alarm circuit is a wireless alarm transmitting circuit, including a signal input circuit, an encoding circuit, and a transmitting circuit; the output of the signal input circuit is connected to the encoding circuit, and the encoding circuit is connected to the transmitting circuit, and the transmitting circuit transmits the alarm signal through radio The wave is transmitted to the distribution network power supply intelligent control center, or the electrician's mobile phone.

The transformer anti-theft remote alarm device utilizes advanced electronic technology to develop an intelligent alarm for transformer anti-theft. Compared with the prior art, the present invention has outstanding substantive features and significant progress. Technological progress, reasonable design, ideally realize the intelligent management of transformer anti-theft, which will play a positive role in guaranteeing the safe operation of the power grid. The specific advantages of the transformer anti-theft remote alarm:

The transformer anti-theft remote alarm of the present invention, when the transformer is damaged or stolen, maintenance personnel can stop and repair it in time at the scene, reduce transformer theft accidents, increase power supply, and increase enterprise and social benefits.

The safety operation management of distribution network equipment is strengthened, the reliability of power supply is greatly improved, and the overall level of safety management of distribution network is improved.

Description of drawings

Fig. 1 is a block diagram of a transformer anti-theft remote alarm of the present invention;

Fig. 2 is signal data acquisition, the block diagram of judging circuit of the present invention;

Fig. 3 is the optical fiber communication cable circuit frame of the present invention;

Fig. 4 is a block diagram of the wireless alarm circuit of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is a block diagram of a transformer anti-theft remote alarm of the present invention, the device includes a signal acquisition circuit 1, a signal judgment circuit 2, and a remote alarm circuit 3;

The transformer anti-theft remote alarm is installed above the transformer stand, the signal acquisition circuit collects the theft signal from the peripheral connection on the upper end of the transformer body, the output is connected to the signal judgment circuit, and the output of the signal judgment circuit is connected to the remote alarm circuit. The output signal of the alarm circuit is connected to the distribution network intelligent control center or the electrician's mobile phone.

When a transformer is stolen, the signal collection and judgment circuit will immediately transmit the signal to the transmitting circuit for alarm, and the on-duty personnel will immediately go to the scene to deal with the alarm situation.

Fig. 2 is the wiring diagram of the signal acquisition and judgment circuit of the present invention, the signal acquisition and signal judgment circuit includes a power switch S, a relay K, a resistor R, a capacitor C, a diode VD, a crystal triode VT, and an insulated wire L around the transformer body. The crystal triode has three poles respectively B, C, and E; one end of the power switch is connected to the negative pole of the power supply, and the other end of the power switch is respectively connected to the E pole of the crystal triode, one end of the capacitor, and one end of the insulated wire. The B poles of the triode are respectively connected to the other end of the capacitor, the other end of the insulated wire, and one end of the resistor. The C poles of the crystal triode are respectively connected to one end of the relay coil and the positive pole of the diode. The other end of the coil and the negative pole of the diode are respectively connected to the positive pole of the power supply.

The insulated wire wound around the transformer body is installed on the fixing screw at the junction of the large cover and the box of the distribution transformer. A small hole is punched on the fixing nut, and after the nut is tightened, the insulated wire passes through the small hole on the fixing nut. Normally, both ends of the capacitor C are at low level, the transistor VT is in the cut-off state, the relay K is not charged, and the contacts are not closed. The fixed screw installed at the joint between the large cover of the transformer and the box turns, and the insulated wire is broken, so that the voltage at both ends of the capacitor C rises, the crystal triode conducts, the live working contact of the relay K pulls in, and the remote alarm circuit is connected. . Immediately transmit this signal to the alarm transmitting circuit for remote alarm, and the on-duty personnel will go to the scene to deal with the alarm situation as soon as possible.

Fig. 3 is a block diagram of the optical fiber communication cable circuit of the present invention; it includes an optical transmitting circuit 31 and an optical fiber cable 32; the optical transmitting circuit converts the theft signal of the distribution transformer into an optical signal, and transmits it to the distribution intelligent control center through the optical fiber cable.

When the transformer is stolen, the remote alarm device codes according to the regulations through the transmitting circuit of the optical transceiver, and converts the theft signal into an optical signal and transmits it to the distribution intelligent control center through the optical fiber cable.

Fig. 4 is a block diagram of the wireless alarm circuit of the present invention, which is a block diagram of the wireless alarm transmitting circuit of the present invention, and the wireless alarm transmitting circuit includes a signal input circuit 41, an encoding circuit 42, and a transmitting circuit 43; the signal input circuit and the signal The judging circuit is connected, the output of the signal input circuit is connected to the coding circuit, and the coding circuit is connected to the transmitting circuit.

The wireless alarm transmitting circuit can adopt a mobile phone module or a wireless transmitting circuit.

When the transformer in operation is stolen, the theft signal is immediately transmitted to the transmitting circuit for remote alarm, and the theft signal is transmitted to the mobile phone of the on-duty personnel, and the on-duty personnel immediately go to the scene to deal with the alarm situation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (1)

1. A transformer anti-theft remote alarm is characterized in that: it comprises a signal acquisition circuit, a signal judgment circuit, and a remote alarm circuit; the signal acquisition circuit collects a theft signal from the peripheral connection line of the transformer body upper end, and outputs and connects the signal Judging circuit, the output of the signal judging circuit is connected to the remote alarm circuit, and the output of the remote alarm circuit transmits the signal to the distribution network intelligent control center or the electrician's mobile phone; The signal acquisition circuit and the signal judgment circuit include a power switch, a relay, a resistor, a capacitor, a diode, a transistor, and an insulated wire around the transformer body; the transistor has three poles respectively B, C, E; one end of the power switch is connected to the negative pole of the power supply, the other end of the power switch is respectively connected to the E pole of the transistor, one end of the capacitor, and one end of the insulated wire, and the B pole of the transistor is respectively connected to the other end of the capacitor One end, the other end of the insulated wire, and one end of the resistor, the C pole of the transistor is respectively connected to one end of the relay coil and the positive pole of the diode, and the other end of the resistor, the other end of the relay coil, and the negative pole of the diode are respectively connected to the power supply positive electrode; The remote alarm circuit is an optical fiber communication cable circuit or a wireless alarm emission circuit, wherein the optical fiber communication cable circuit includes an optical emission circuit and an optical fiber cable; Distribution intelligent control center; when the distribution transformer is stolen, the optical fiber communication cable circuit is coded according to the regulations through the optical transmission circuit, and the signal is converted into an optical signal and transmitted to the distribution intelligent control center through the optical fiber cable; The wireless alarm transmitting circuit includes a signal input circuit, an encoding circuit, and a transmitting circuit; the output of the signal input circuit is connected to the encoding circuit, the encoding circuit is connected to the transmitting circuit, and the transmitting circuit transmits the alarm signal to the distribution network power supply intelligence through radio waves control center, or the electrician's mobile phone.

Images