KR100336320B1 - Remote supervisory control system of electric equipment - Google Patents

Abstract

The present invention detects an error such as an overcurrent, overvoltage or leakage current and an open phase and an overheat state in an abnormal state generated in a facility such as a water distribution line or a transformer, and remotely stores the error in the control unit and promptly contacts a worker. The present invention relates to a remote monitoring and control system for an electrical installation that enables repair, and the present invention provides a plurality of input terminals capable of receiving signals (voltage, current, leakage current, temperature, and batteries) generated from a distribution line such as a consumer. An A / D conversion unit for converting an analog signal into a digital signal connected to an installed input unit, an amplifying unit for amplifying the analog signal inputted to the input unit, and setting for setting reference data to be compared with the converted signal. It is connected to the unit and calculates voltage, current, leakage current, temperature, battery, power factor, power, contact point, and time in the central processing unit. A central processing unit which transmits a signal to a control unit via a modem and displays an error at the same time as an error in comparison with the data, and a remote control unit connected to the central processing unit to remotely control the signal according to a control unit signal; It includes a computer installed on the control unit and displayed on the monitor according to the error signal transmitted through the modem, and an automatic telephone connection device that receives the signal from the computer and automatically contacts the person in charge by telephone.

Description

REMOTE SUPERVISORY CONTROL SYSTEM OF ELECTRIC EQUIPMENT}

The present invention detects an error such as an overcurrent, an overvoltage or leakage current and an open phase and an overheat state in an abnormal state generated in a facility such as a water distribution line or a transformer, and remotely stores an error in a control unit and promptly contacts a worker. The present invention relates to a remote monitoring and control system for an electrical installation that allows for repair.

In general, if you want to conduct safety management inspection of electric power line, that is, your own electric equipment, it is possible only when the power supply is cut off.In addition, the inspector directly inspects current, voltage, overheating, and phase loss during the inspection work. As a result, the inspection work was inconvenient, as well as the excessive time required for the inspection, and the cost for regular inspection was excessively consumed.

The present invention has been invented to solve the above problems, and by changing the set value according to the characteristics of each customer from time to time to prevent accidents, as well as remotely controlled by the computer of the control unit when the error occurs in the customer at the same time displayed on the monitor Of course, the objective is to provide a remote monitoring and control system for electrical facilities that can be promptly contacted by wire or wireless.

The present invention for achieving the above object is an input unit provided with a plurality of input terminals that can receive a signal (voltage, current, leakage current, temperature, battery, contact) generated in a distribution line such as a customer, and the input unit An A / D conversion unit for converting an analog signal into a digital signal, and a setting unit for setting reference data that can be compared with the converted signal. A central processing unit that calculates current, leakage current, temperature, battery, power factor, power, contact point, time, and compares it with the reference data of the setting unit, and transmits the signal to the control unit through the modem and displays the error on the display unit when an error occurs; A remote control device connected to the central processing unit for remote control according to a signal of a control unit, and installed in the control unit and transmitted through a modem; Thus in a multiple signal doengeot hayeoseo by receiving a signal from the computer and the computer that is displayed on the monitor including an automatic call transfer device of a contact automatically call to a specialist.

1 is a block diagram of a remote monitoring control system of the present invention electrical equipment;

Figure 2 is a flow chart for explaining the operation of the remote monitoring control system of the present invention electrical equipment.

<Description of the symbols for the main parts of the drawings>

1 input unit 2 amplification unit

3: A / D conversion part 4: Setting part

5: central processing unit 6: RAM storage unit 7: ROM storage unit 8: display unit

9, 12: modem 10: control unit

11: computer 13: monitor

14: automatic telephone connection device 15: remote control device

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to FIGS. 1 and 2.

1 is a block diagram of a remote monitoring control system of the present invention electrical equipment, Figure 2 is a flow chart for explaining the operation of the remote monitoring control system of the present invention electrical equipment, the present invention is a voltage input stage (1a) is a voltage input And a current input stage 1b through which a current is input, a leakage current input stage 1c for detecting a leakage current, a temperature measuring stage 1d for measuring temperature, and a battery monitoring stage 1e for monitoring whether a battery is charged or not. The input unit 1 is connected to the amplifying unit 2 to amplify the input signal, and the amplifying unit 2 has an A / D conversion unit 3 for converting the amplified analog signal into a digital signal. The A / D conversion unit 3 is connected to a central processing unit 5 which detects an error by comparing the converted signal with the data input to the data setting unit 4.

On the other hand, the central processing unit 5 has a RAM storage unit 6 for storing the compared data for a predetermined time, a ROM storage unit 7 and a central processing unit for storing a program for processing in the central processing unit (5) ( The display unit 8 for displaying the processing result of 5) and the modem 9 for transmitting and receiving with the control unit 10 are connected, respectively.

In addition, the computer 11 installed in the control unit 10 is provided with a modem 12 for transmitting and receiving to and from the central processing unit 5 and a monitor 13 for transmitting the processing result to a worker. Automatic telephone connection device 14 is provided for transmitting to the communication means of wired / wireless, and the remote control device 15 which is operated by the signal of the control unit 10 and remotely controlled is the central processing unit 5. Connected with

The present invention configured as described above sets the initial value of each element in the setting unit (4) and the low voltage setting protects the load side by setting the range and low voltage duration time that do not interfere with the load side when the voltage of the generator or KEPCO line is abnormal. The setting is to set the magnitude of the voltage unbalance that occurs during phase loss in accordance with the customer's equipment and to set the phase duration of the phase loss to prevent damage to the single phase load due to three-phase power load protection and other phase voltage rises.

In addition, overcurrent setting protects the transformer and load side overload by setting overload limit and time on the load side, and leakage current setting prevents malfunction, electric shock and fire by setting the leakage current finely to 1mA. Set the maximum allowable temperature and time of the transformer and motor to protect the transformer and motor.

The data transmission time setting inputs the peak time zone according to the characteristics of the customer, and transmits the load to the computer 11 in real time to obtain an accurate data value, and the telephone number setting inputs a telephone number of a person in charge or a customer for contact.

When operating the remote monitoring control system of the electrical equipment of the present invention in the state of setting each reference value as described above, each signal generated at the male and the distribution terminal is input to the input terminal corresponding to the signal at each input terminal installed in the input unit (1) The analog signal input to the input unit 1 is amplified by the amplifier 2, converted into a digital signal by the A / D converter 3, and then transmitted to the central processing unit 5.

When the signal is transmitted to the central processing unit 5, the previously set setting value is compared with the transmitted signal. If the result value is judged to be an error, the modem 9 is displayed while displaying an error on the display unit 8. The error is transmitted to the control unit 10 through.

When the error signal is input to the computer 11 through the modem 12 installed in the control unit 10, the error signal is displayed on the monitor 13 connected to the computer 11 so that an operator can check the error signal. The computer 11 is stored in the internal memory, and if the error occurrence time is weekly, the message is delivered to the person in charge, and then the processing result of the type and time of the message delivered to the person in charge and the person in charge is received in the memory.

On the other hand, when the error occurrence time is night, the telephone number entered in the automatic telephone connection device 14 to contact the person in charge and if the contact with the person in charge is not possible to store the message to the person in contact with the person in charge Contact the phone number entered several times.

In addition, when the person in charge contacted from the outside is connected to the computer 11 of the control unit 10 and stored in the memory so that the received error message can be heard, the person in charge of the switchgear contacts the person in charge promptly. The processing is enabled and when the remote control device 15 connected to the central processing unit 5 is operated by the operation of the computer 11 of the control unit 10, the operator can remotely control.

Remote monitoring control system of the present invention electrical equipment that acts as described above sets the input value input from the switchboard according to the characteristics of each customer to check on the computer of the control unit when an error occurs in the customer as well as quickly and accurately to the person in charge It is a very useful invention that can prevent the accident in advance by being able to control it remotely from the control unit.

Claims (1)

Amplifying an analog signal input to the input unit 1 and a plurality of input terminals provided with a plurality of input terminals that can receive signals (voltage, current, leakage current, temperature, battery) generated in the distribution line such as the customer The A / D converter 3 for converting an analog signal into a digital signal, and the setting unit 4 for setting reference data that can be compared with the converted signal. The controller 5 calculates the voltage, current, leakage current, temperature, battery, power factor, power, contact point, and time in the processing device 5 and compares the reference data of the setting unit 4 with the control unit 10 through the modem 9 when an error occurs. The central processing unit 5 which transmits a signal to the display unit 8 and displays an error on the display unit 8 and a remote control which is connected to the central processing unit 5 and remotely controlled according to a signal from the control unit 10. Installed in the device 15 and the control unit 10 and transmitted via a modem 12 Electricity characterized in that it comprises a computer 11 displayed on the monitor 13 according to the signal, and an automatic telephone connection device 14 that receives the signal from the computer 11 and automatically contacts the person in charge by telephone. Remote monitoring and control system of equipment.