The apparatus and method for detecting the evidence of electric power system where consumer breaches the contract or misconnection

Abstract

As differences in electricity unit rates arise depending on the contract type to which differential pricing is applied by electricity business operators in accordance with decisions by the Electricity Commission, etc., this invention aims to disclose a device and method for detecting and verifying violations, such as using contracted power with a lower price within the same area or using electricity by a household other than the contracted household in a multi-family dwelling. By doing so, this invention proposes a device and method capable of checking in real-time, while the line is live, whether electricity of a different contract type is being illegally used to lower electricity bills or whether electricity is being charged for being used by another household.

Description

Technology Field

[0001] Electricity meter, penalty usage, miswiring, meter Background Technology

[0002] The government operates the electricity rate system as follows to support rural and fishing communities, which are relatively vulnerable, and to promote electricity usage during low-demand hours.

[0003] The government operates the electricity rate system as follows to support rural and fishing communities, which are relatively vulnerable, and to promote electricity usage during low-demand hours.

[0004] Contract type applied area Sales unit price for residential use Residential, multi-unit housing 108 General use Public use, commercial use 130 industrial For mining and industrial use 107 agricultural use For agricultural and fishery use 47 streetlights Streetlights, security lights 113 late night Nighttime power appliances 67

[0005] As shown above, there is a nearly twofold difference in the unit price between residential and agricultural use. As shown in [Fig. 1], in cases where two different contract types—residential and agricultural—are contracted for the same location, there are instances where the cheaper agricultural electricity is used instead of the residential electricity, i.e., electricity is used in violation of the contract.

[0006] In addition, as shown in [Figure 2], there are cases where the meter supplying power to each household in a multi-unit building does not match the actual household using power, leading to complaints regarding mis-metering.

[0007] Although previous technology was disclosed for distinguishing transformers supplying power to customers, it is difficult to differentiate them in environments where units or contract types are classified by meter, as transformer information is constantly broadcast across all low-voltage lines connected to the same transformer.

[0008] In addition, it is difficult to verify on-site the use of the breach of contract or to conduct a power outage for verification by household without the customer's consent.

[0009] To address these issues, a device was required to identify and verify power lines at the meter level, even if they are supplied by the same transformer. The problem to be solved

[0010] The purpose is to provide a device and method that allows for classification by contract type or household at the meter level rather than the transformer level while power is being supplied, so that this can be verified and confirmed on-site without interruption to power supply. means of solving the problem

[0011] According to the present invention, in order to determine whether the load supplied by one or more power metering devices connected in parallel matches the contract information of said metering devices,

[0012] A transmitter characterized by transmitting contract information in the form of a current signal at a location where any load is used;

[0013] A receiver that receives a signal transmitted by the above transmitter is coupled to a power line of a power metering device and a magnetic field sensor, and includes a magnetic field signal analysis unit that determines the validity and content of the current signal sent by the above transmitter;

[0014] A setting unit for inputting contract information of the above-mentioned power metering device;

[0015] A judgment unit that compares contract information received by the magnetic field signal analysis unit with contract information stored by the setting unit;

[0016] A display unit that displays the content of the judgment unit compared and determined above;

[0017] We intend to present a device capable of identifying the use of electricity user breach of contract, etc., characterized by including Effects of the invention

[0018] The presentation of a device and method capable of detecting and verifying breaches of contract, such as using cheaper electricity different from the contract type or using another person's electricity, in real time without power outages, enables electricity providers to secure stable revenue. Brief explanation of the drawing

[0019] [Fig. 1] shows a configuration supplying power to two different contract types of loads. [Figure 2] shows the power supply configuration per household in a multi-unit building consisting of two or more households. [Fig. 3] is a configuration of a device according to the present invention used when manpower is present on both the meter side and the load side to perform work simultaneously. [Fig. 4] is a device according to the present invention, which is configured such that there is no person on the meter side and manpower moves to the load side to verify the configuration. [Fig. 5] is a workflow diagram using the simplified device of [Fig. 3] above. [Fig. 6] is a workflow diagram using the device of [Fig. 4] above. Specific details for implementing the invention

[0020] In this invention, examples are provided regarding an invention concerning a device and method for verifying whether a load accurately used in conjunction with a power line connected to a power meter—which is a device for distinguishing types of electricity supply contracts and contract households (hereinafter referred to as "contract information")—matches the contract information.

[0021] However, for ease of understanding, the example used was a single-phase power supply using two power lines, but it should be noted that the present invention can be implemented in a three-phase configuration using three wires (delta) or four wires (star) by equipping the corresponding lines with sensors and transmission signal circuits.

[0022] As shown in [Figure 1], multiple meters of different contract types are connected in parallel with the same power source, and power is supplied through a separate power line installed exclusively for the load. If a general household load is connected to a power line supplying agricultural power, which has a lower unit price, it results in unauthorized use.

[0023] As shown in [Fig. 2], there is separate wiring for each contracted household, and a corresponding metering device is installed. If the wiring leading to a contracted household does not match the meter, cases of incorrect billing of electricity usage for other households are occurring.

[0024] [Figs. 3] and [Figs. 5] are simple devices that use a transmitting device and a receiving device to have personnel stationed on both the metering device and the load sides to verify whether the contract information matches the corresponding load and which meter. First, multiple receiving devices are installed on the metering device side, and magnetic field signal receiving sensors (F1, F2) are connected to each power line. Meanwhile, personnel on the load side set the corresponding contract information or device number on the transmitting device and transmit the information to the receiving device in the form of a current signal.

[0025] The receiving device displays the details when it determines that the contract information sent by the transmitting device has been accurately received by both magnetic field signal sensors connected to the main line and the neutral line, in accordance with the defined code format, so that exploration personnel can recognize this. If a signal is detected only on the main line, it identifies the remaining neutral line; if the neutral line is identified elsewhere, it indicates that wiring correction is required; and if the main line is identified but the remaining neutral line is not, it displays an indication of suspected intrusion.

[0026] And if it does not match the contract information, it is marked as a breach of contract.

[0027] Figures 4 and 6 illustrate the device configuration and workflow in a case where a sub-device is installed in the metering device, personnel are withdrawn (not deployed), and personnel only use the main device on the load side to identify contract type and household information.

[0028] In the prior art, transformer information was broadcast to the entire low-voltage line connected to the transformer so that it could be identified immediately when a terminal device was connected at the load. However, in the environment of this invention, since the same transformer power is configured as a parallel circuit through the meter to supply the load, if the broadcasting function is used as in the prior art, the same content is received by all loads, so the function cannot be performed.

[0029] Accordingly, without using the broadcasting function, the corresponding sub-device is configured to respond only upon request from the main unit, and the main unit displays the information received in response so that personnel can recognize the content.

[0030] In other words, when the current signal generator transmits contract type information or household information to the sub-unit based on the characteristics of the connected load according to the set value, the sub-unit analyzes the information coming in through two magnetic field signal sensors. If it is determined that the magnetic field signals from both sides exactly match the transmitted information according to established rules, the sub-unit converts that information back into a voltage signal and transmits it to the main unit. If the signal sent by the main unit is detected only on the phase line and not on the neutral line, the remaining neutral line is identified by another meter. If it is connected to another meter, it is determined to be a wiring fault, and the signal is transmitted (communicated) to the main unit using a means other than the voltage signal (wireless communication was used here) to allow for error correction. Furthermore, if the phase line is detected but the neutral line is missing, there is a possibility of conduction; therefore, information regarding suspected conduction is transmitted to the main unit using another means of communication to enable detection.

[0031] Furthermore, if the main line is detected by a sub-device connected to a different meter, a breach of contract or household information change notice is transmitted because the meter information and the transmitted information do not match. With this configuration, correct contract types and household information can be identified and verified without power outages. Explanation of the symbols delete

Claims

Claim 1 A power source; a plurality of loads; a plurality of power metering devices connected in parallel with the power source and distinguishing contract information; a dedicated power line connecting the loads and the power metering devices; a main unit connected to one end of the dedicated power line and transmitting a current signal containing contract information of the loads to the power metering device on the opposite side; a sub-unit receiving the signal transmitted by the main unit at the power metering device, comprising: a magnetic field signal analysis unit that determines the validity and content of the current signal sent by the main unit; a setting unit that inputs contract information of the power metering device; a judgment unit that compares the contract information received by the magnetic field signal analysis unit with the contract information stored by the setting unit; and a display unit that displays the result of the comparison by the judgment unit; characterized by comprising: an electric user breach of contract judgment device. Claim 2 Power supply; multiple loads; multiple power metering devices connected in parallel with the power supply and distinguishing contract information; a dedicated power line connecting the loads and the power metering devices; a main unit connected to one end of the dedicated power line and transmitting a current signal containing contract information of the loads to the power metering device on the opposite side; a sub-unit receiving the signal transmitted by the main unit at the power metering device, which includes a magnetic field signal analysis unit that determines the validity and content of the current signal sent by the main unit; a setting unit that inputs contract information of the power metering device; a judgment unit that compares the contract information received by the magnetic field signal analysis unit with the contract information stored by the setting unit; and an electric user breach of contract judgment device characterized by determining a breach of contract if the contract information does not match as a result of the comparison by the judgment unit. Claim 3 An electric user breach of contract judgment device according to claim 1, characterized in that the contract information compared between the main device and the auxiliary device includes contract type, contract household, or device number. Claim 4 An electric user breach of contract judgment device characterized in that, in claim 2, the sub-device additionally determines a breach of contract when the current signal transmitted by the main device is not detected by the sub-device on at least two wires of the dedicated power line.

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