CN201845395U - Anti-theft remote intelligent alarm device for 10kV to 20kV transformer - Google Patents

Abstract

The utility model is a remote intelligent alarm device for 10-20kV transformer theft, which includes a signal acquisition circuit, a signal judgment circuit, and a remote alarm circuit; The signal judging circuit, the output of the signal judging 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 judging circuit judges If it is confirmed that the transformer has been damaged or stolen, the signal will be sent to the alarm transmitting circuit for remote alarm immediately. Technology, develop a transformer safety intelligent management, reduce accidents, increase power supply, increase enterprise and social benefits.

Description

10～20kV transformer anti-theft remote intelligent alarm device

technical field

The invention relates to a 10-20kV transformer anti-theft remote intelligent alarm technology, which is applied to a 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. If the transformer anti-theft remote intelligent alarm technology can be fully promoted, the transformer will In the event of an accident, the maintenance personnel will go to the scene to stop and repair it in time, reduce transformer theft accidents, increase power supply, and increase corporate 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 10-20kV transformer anti-theft remote intelligent alarm device, 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 thyristor, and an insulated wire around the transformer body; the thyristor has three poles respectively T1, T2, G, 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 T2 pole of the thyristor, one end of the capacitor, and one end of the insulated wire, and the G pole of the thyristor is respectively connected to the other end of the capacitor and the insulated wire The other end, one end of the resistor, the thyristor T1 pole are respectively connected to one end of the relay coil, 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 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 10-20kV transformer anti-theft remote intelligent alarm device uses 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. Specifically, the The 10-20kV transformer anti-theft protection intelligent technology has progressed, the design is reasonable, and the transformer anti-theft intelligent management is ideally realized, which will play a positive role in ensuring the safe operation of the power grid. The specific advantages of the 10-20kV transformer anti-theft remote intelligent alarm device:

The 10-20kV transformer anti-theft remote intelligent alarm device of the present invention, when the transformer is damaged or stolen, the maintenance personnel will stop and repair it in time at the scene at the first time, reduce the transformer theft accident, increase the power supply, and increase the 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 10-20kV transformer anti-theft remote intelligent alarm device 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 the block diagram of 10～20kV transformer anti-theft remote intelligent alarm device of the present invention, and this device comprises signal acquisition circuit 1, signal judging circuit 2, remote alarm circuit 3;

The transformer anti-theft remote alarm device 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 thyristor VR, and an insulated wire L around the transformer body; The thyristor has three poles, namely T1, T2, and G. 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 thyristor T2 pole, one end of the capacitor, and one end of the insulated wire. The G pole of the thyristor respectively connect the other end of the capacitor, the other end of the insulated wire, and one end of the resistor; the thyristor T1 poles are respectively connected to one end of the relay coil and the positive pole of the diode; the other end of the resistor, the other end of the relay coil, and the diode Connect the negative pole to the positive pole of the power supply.

The insulated wire wound around the transformer body is installed at the junction of the large cover and the box of the distribution transformer. Normally, the two ends of the capacitor C are at low level, the thyristor VR is in the cut-off state, the relay K is not charged, and the contacts are not closed. The insulated wire at the joint is broken, so that the voltage at both ends of the capacitor C rises, the thyristor VR is triggered and turned on, the live contact of the relay K is closed, 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 as soon as possible to deal with the alarm situation.

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 (4)

1. 10～20kV transformer anti-theft distant place intelligent alarm device is characterized in that: comprise signal acquisition circuit, signal judging circuit, distant place warning circuit; Described signal acquisition circuit is to gather the theft signal from the peripheral line in transformer body upper end, output connects described signal judging circuit, signal judging circuit output connects described distant place warning circuit, and warning circuit output in a distant place sends signal on distribution intelligent control center or the electrician's mobile phone to.

2. 10～20kV transformer anti-theft according to claim 1 distant place intelligent alarm device, it is characterized in that: signals collecting, signal judging circuit comprise one of power switch, one on relay, one of resistor, one in capacitor, one of diode, one of thyristor is around one of the insulated conductor of transformer body one circle; Described thyristor has three utmost points to be respectively T1, T2, G; Described power switch one termination power negative pole, the power switch other end connects the described thyristor T2 utmost point, capacitor one termination, insulated conductor one termination respectively, the described thyristor G utmost point connects another termination of described capacitor, another termination of insulated conductor, resistor one termination respectively, the described thyristor T1 utmost point connects described relay coil one termination, diode cathode respectively, and another termination of described resistor, the relay coil other end, diode cathode connect positive source.

3. 10～20kV transformer anti-theft according to claim 1 distant place intelligent alarm device, it is characterized in that: the optical fibre communication cable circuit comprises optical transmission circuit, fiber optic cables; It is light signal that described optical transmission circuit is stolen signal transition with transformer, is transmitted to the distribution intelligent control center by described fiber optic cables; When theft took place substation transformer, distant place intelligent alarm device was carried out in accordance with regulations coding by the fiber optic radiating circuit, is that light signal is transmitted to the distribution intelligent control center by fiber optic cables with signal transition.

4. 10～20kV transformer anti-theft according to claim 1 distant place intelligent alarm device, it is characterized in that: described distant place warning circuit is a wireless alarming emissioning circuit, comprises signal input circuit, coding circuit, radiating circuit; Described signal input circuit output connects described coding circuit, and coding circuit connects described radiating circuit, and radiating circuit is passed to alerting signal on distribution supply intelligent control center or the electrician's mobile phone by radiowave.

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