RU2613130C1 - Automated equipment monitoring device for electric substation - Google Patents

Abstract

FIELD: information technologies.

SUBSTANCE: automated equipment monitoring device for electrical substation comprises a computer connected to a sensor for metering the parameters of substation equipment. The computer is designed as a microprocessor-based data acquisition and processing unit. The sensors themselves are installed outside the sensors and connected with them using one or two fiber-optic cables. The cables are respectively connected to optical signal generator and receiver, either integrated or separated. The microprocessor and sensors are arranged in a single housing, which is fitted with a power supply, a display and an interface module. The sensors are connected to the personal computer by means of electrical or fiber optic connection. The sensors can be formed as current, voltage and temperature sensors. The microprocessor comprises a microcontroller connected with a Profinet and / or Ethernet communication module, ROM and RAM-1 memory as well as with a data controller to which RAM-2 with the ring buffer and the switching board with input sensor signals are connected. The microprocessor unit output is connected via Profinet and / or Ethernet network with the operator station.

EFFECT: improvement of reliability and versatility of monitoring devices.

2 cl, 7 dwg, 1 tbl

Description

The claimed technical solution relates to the field of electrical engineering and can be used to monitor equipment at an electrical substation and provide signals to the operator's automated workstation (AWS).

Known Russian analogues RU 2319988 C2 - [1], RU 2394249 C1 - [2], RU 2437193 C1 - [3], RU 2521790 C1 - [4], RU 55219 U1 - [5], in which similar structural elements are used, but they have a different purpose. For example, a technical solution [2] can compare the received data from sensors, but is intended solely to determine insulation damage at the support of the electric transmission line (power transmission line) and controls only the ratio of current and voltage, transmitting only information about the accident to the workstation or to the supervisor without specific meanings. In addition, the analogues [1], [2], [3], [4] and [5] have low versatility, as they measure a small number of physical quantities and transmit incomplete information to the workstation.

Known utility models in accordance with RU 75482 U1 - [6], RU 83829 U1 - [7], RU 91635 U1 - [8], RU 109614 U1 - [9], which are data acquisition systems from sensors and are based on a computer. At the same time, in technical solutions [6] and [8], the connections between the elements inside the system (device) are made optical, and the data to the consumer (at the control room) is transmitted via the Internet.

The invention according to patent RU 2470435 C1 - [10] uses switching elements that significantly complicate the device, and which are not in the claimed technical solution. An additional disadvantage of the analogue [10] is that it does not have the ability to save the history of changes in the measured values and the intellectual processing of information (only excesses by threshold level signals are processed).

Compared with the technical solution developed by the applicant, the analogue of US 4530025 A - [11] uses a similar principle for measuring currents, and the analogue of US 5615104 A - [12] uses a similar information processing system, but in the aggregate the features of technical solutions differ. An additional disadvantage of the analogue [11] is the lack of a function for processing and transmitting measured information; moreover, other physical quantities are not measured. In the analogue [12] there is no specific description of the sensors used, which makes its use problematic.

In the "Control device for online monitoring of high-voltage overhead power lines" according to patent CN 201904655 U - [13] there is no possibility of measuring voltage in overhead lines (VL), but there is a possibility of measuring the amount of sagging wires, which in most cases is not used in automation systems.

“A device for remote monitoring of the state of a wire, lightning protection cable or cable of an overhead power transmission line” according to RU 130155 U1 - [14] as compared to the technical solution developed by the applicant does not measure voltage, instead of fiber-optic communication lines it uses a wireless transceiver, which significantly reduces device reliability. In addition, this device, like the device according to the patent RU 115582 U1 - [15], contains an autonomous power supply made, for example, powered by solar panels, which can also greatly complicate the conditions of its use and operation and increase the cost.

Technical solutions for patents: RU 2222858 C1 - [16], RU 112534 U1 - [17], as well as US 4689752 A - [18] and CN 203422438 U - [19] are close to the claimed device for functional purpose, but in design have strong differences. These devices contain a hinged line (power line) case with a power supply, measuring instruments, a signal receiver of a satellite system for global positioning and means of interfacing with a cellular telephone channel. The operating time of these devices is limited by an autonomous electric power supply. The disadvantage of such designs is also the use of cellular communication channels in them to transmit the readings of measuring sensors, which greatly reduces their reliability.

An analogue of the claimed technical solution, close in functionality and in the applied design, is the device according to the patent for the invention RU 2143165 C1 - [20]. A device for monitoring electric power systems [20] comprises a measuring module (high voltage) connected to the high voltage network, including a passive mains transducer magnetically coupled to the high voltage network, and the high voltage measuring module further comprising a secondary power supply unit magnetically coupled to the high voltage network low-voltage supply current transformer, active measuring information signal converter connected to a passive network converter th current block and the secondary elekropitaniya and having RF and / or optical outputs the converted signals to the measurement information, wherein all elements of the high-voltage measuring module placed in electrical screen, connected to the network via a throttle wire and a damping resistor.

A disadvantage of the known analogue [20] is that it does not control the temperature. Also, it does not have a module for additional “intelligent” information processing, which increases the load on the broadcast network and reduces universality.

The prototype of the proposed technical solution is "Automated system for monitoring, protection and control of electrical substation equipment" according to the patent for invention RU 2468407 C1 dated 11.27.2012, G05B 19/00, H02J 13/00 - [21], containing a computer connected by communication lines to sensors of technical parameters of electrical substation equipment. Sensors of technical parameters of the equipment of the electrical substation are connected to the converter of the electrical signal into optical. The system also contains fiber-optic lines of communication and data transmission, converters of the optical signal into an electrical signal. A computer used as a device for monitoring, protection, registration and management of electrical substation equipment can be made in the form of a server cluster consisting of several computers (computers) connected to a single system, while the server cluster is connected to a control device of the electrical substation equipment, located at the operator’s workplace, and is also connected by a separate bus to devices executing control commands located on the equipment of the electrical substation, and to the terminal m remote access.

The disadvantage of the prototype [20] is that the creation of a cluster of servers at the facility is time-consuming and often not advisable due to the high complexity and cost of the system being created. The deployment of such a system often requires serious refinement of the control object, and making changes to the documentation of the control object, which is not always permissible.

The technical result of the proposed technical solution is to simplify the design of the device (system) and increase its reliability and versatility.

Additionally, the technical result consists in creating the possibility of using the device (system) for the main types of industrial and civil facilities, which carry out a variety of technological processes, since the device does not involve the control of these technological processes, and does not require changes in the design and technological refinement of these objects. The latter will not require changes to their design and operational documentation.

The essence of the technical solution is as follows: "Automated device (system) for monitoring the equipment of the electrical substation", contains a computer connected by communication lines to the sensors of the technical parameters of the equipment of the electrical substation, while the computer is made in the form of a microprocessor unit for collecting and processing data, sensitive elements of sensors of technical parameters taken from the sensors themselves and connected to the last one or two fiber optic cables, which are connected, respectively, with placed by the shaper and receiver of optical signals or separated by the shaper and receiver of optical signals, a microprocessor-based data acquisition and processing unit, sensors of technical parameters are placed in one housing, which is additionally equipped with a common power supply, an indication device and an interface module, sensors of technical parameters can be connected to a computer in the first case, using electric communication lines or, in the second case, using a fiber-optic communication line, while the sensor output is initially connected to an electric to optical signal converter, which is connected by a fiber-optic communication line with optical signal to electric signal converters, the technical parameters sensors can be made in the form of current, voltage, and temperature sensors, a microprocessor data acquisition and processing unit contains a microcontroller connected to Profinet and / or Ethernet communication module, ROM and RAM-1 memory, as well as a data controller, to which RAM-2 with a ring buffer and a circuit board with inputs are connected technical parameters of the signals of sensors, the output of the microprocessor data collection and processing unit connected on Profinet network and / or Ethernet with operator station. The sensitive element of the current sensor is made magneto-optical, based on the Faraday effect, the sensitive element of the voltage sensor is electro-optical, the electro-gyration effect, the sensitive element of the temperature sensor is fiber-optic.

The introduction of restrictive signs in the formula "An automated device for monitoring electrical substation equipment contains a computer connected by communication lines to sensors of technical parameters of electrical substation equipment" is necessary for a general description of the system for the claimed technical solution, prototype and analogues, which determines the configuration of the device (system).

The distinguishing feature introduced into the formula: “A computer is made in the form of a microprocessor data acquisition and processing unit” allows to significantly reduce the overall dimensions of this unit, as a result of which it becomes possible to integrate (place) the microprocessor unit in industrial equipment, for example, in a Euromechanics standard cabinet.

Distinctive feature: “sensitive elements of sensors of technical parameters are taken out of the sensors themselves and connected to the last one or two fiber-optic cables, which are connected respectively to combined shaper and receiver of optical signals or separated by shaper and receiver of optical signals” minimizes the influence of the electric field elements of an electrical substation, in particular busbars and wires, energized by sensors of technical parameters.

Distinctive feature: “a microprocessor-based data acquisition and processing unit, technical parameters sensors are housed in one housing, which is additionally equipped with a common power supply, an indicating device and an interface module” gives the device a finished look and increases its versatility, due to the possibility of its mobile installation in an electrical substation .

Distinctive feature: “sensors of technical parameters can be connected to a computer in the first case using electric communication lines or in the second case using fiber-optic communication lines, while the output of the sensor is initially connected to an electrical to optical signal converter, which is connected to a fiber optic a line of communication with optical signal to electric signal converters ”makes it possible to use standard sensors of technical pairs produced in the device (system) of industry meters both with electrical signal output and a signal output of a fiber optic cable.

A distinctive feature: “sensors of technical parameters can be made in the form of sensors of current, voltage and temperature” allows you to remove the basic operational values, namely current, voltage and temperature, from the sensitive elements of the sensors located on the power lines or buses of the electrical substation.

Distinctive feature: “the microprocessor-based data acquisition and processing unit contains a microcontroller connected to a Profinet and / or Ethernet communication module, ROM and RAM-1 memory, as well as to a data controller, to which RAM-2 with a ring buffer and a circuit board with inputs are connected signals of sensors of technical parameters ”, provides the possibility of autonomous operation of the microprocessor unit, which simplifies its operation by the consumer, increases reliability and reduces the overall dimensions of the inventive device (system). The presence of a data controller and a microcontroller allows intelligent processing of the measured signals, which further increases the versatility of the claimed device (system). A ring buffer is a memory area that allows you to organize a continuous recording of values, which improves performance.

Distinctive feature: “the output of the microprocessor-based data collection and processing unit is connected via the Profinet and / or Ethernet network to the operator’s workstation”, allows you to embed the device in an industrial monitoring and control network based on the Profinet protocol, widely used in industrial automation systems, or ( and / or) use widely used Ethernet networks.

The introduction of the distinguishing features: “the current sensor is magneto-optical, Faraday’s effect, the voltage sensor is electro-optical, the electro-gyration effect, the temperature sensor is fiber-optic”, it is necessary to minimize the harmful effects of electromagnetic radiation (fields) on sensitive elements of sensors of technical parameters, which will significantly increase their reliability and accuracy of measurements, and also makes sensitive elements located dix on power lines and / or elements of electrical substation fire and explosion.

An automated monitoring device for electrical substation equipment is shown in the following figures.

In FIG. 1 shows the structure of an automated device (system) for monitoring the equipment of an electrical substation.

Moreover, in FIG. 1 the following notation is applied:

1 - microcontroller;

2 - RAM-1 (designed to store the results of checks of values, as well as signal values);

3 - ROM (intended for recording microcontroller software, diagnostic algorithms, system settings);

4 - data controller;

5 - RAM-2 (designed to store ring buffers for each channel);

6 - indication device;

7 - interface module;

8 - main Ethernet / Profinet data exchange channel;

9 - redundant Ethernet / Profinet data exchange channel;

10 - patch board;

11 - Converter (optical signal to electrical);

12 - fiber optic communication lines of the first type;

13 - (13.1 and 13.2) - current sensor;

14 - voltage sensor;

15 - temperature sensor;

16 - sensor with a sensing element having an electrical output;

17 - sensitive element (SE) of the current sensor;

18 - ChE voltage sensor;

19 - ChE temperature sensor;

20 - fiber optic communication lines of the second type;

21 - a sensitive element (any other) of the sensor with an electrical output;

22 - wire communication line between the CE and the sensor (16);

23 - power supply.

Additionally, in FIG. 1 marked: Software - software, PLC - programmable logic controller.

Fig 2. - embodiments of sensors of technical parameters: a) a diagram of a sensor of technical parameters with a sensitive element connected to the last two fiber optic cables; b) a sensor circuit of technical parameters with a sensitive element connected to the last one fiber optic cables. In FIG. 2 presents: Ф - optical signal shaper, Pr - optical signal receiver, П - electric to optical signal converter.

FIG. 3. - structure of an automated monitoring system with sensors of technical parameters having an electrical output, where 24 is the electric communication line.

FIG. 4. - structure of the data controller program.

FIG. 5. - Appearance of an automated device (system) for monitoring the electrical substation equipment.

FIG. 6. - appearance of the main window of the AWP software.

FIG. 7. - the appearance of the channel settings window of the AWP software channel.

An automated device (system) for monitoring the equipment of an electrical substation contains a computer made in the form of a microprocessor-based data collection and processing unit, including a microcontroller (1), to which RAM-1 (2) is connected to store the last measured signal values and the results of their checks and ROM (3) for storing microcontroller software, diagnostic algorithms, as well as system settings. The microcontroller (1) is connected to a data controller (4), to which RAM-2 (5) is connected to store ring buffers for each channel (signal change history for each channel). To display diagnostic information about the operation of the device, an indication device (6) is connected to the microcontroller (1). To transmit information about the operation of the device, the current measured values, as well as other necessary information, the microcontroller (1) is connected to the interface module (7) connected via the main Ethernet / Profinet data exchange channel (8) or via the backup Ether-net data exchange channel / Profinet (9) with the workstation (or with the operator's control room) directly, or through a programmable logic controller for data processing - PLC. The microprocessor data acquisition and processing unit also contains a switching board (10), which connects the data controller (4) with converters (11) or with the electrical outputs of the sensors of technical parameters. The transducers (11) are connected via fiber optic communication lines of the first type (12) with sensors (13), (14), (15) and / or (16), which are connected to the sensitive elements of current (17), voltage (18) , temperatures (19), respectively, along the fiber-optic communication lines of the second type (20) and / or to the sensitive elements of (any other) sensor (21) with an electrical output via wired communication lines (22). Sensors of technical parameters can be made in two versions: a) - (13.1) - for example, a current sensor with a sensor element with two fiber optic cables; b) - (13.2) - for example, a current sensor with a sensor element of a sensor with one fiber-optic cable. Sensitive elements of current (17), voltage (18) and temperature (19) are installed directly on the equipment of the electrical substation. Fiber-optic communication lines of the second type (20) are single- or multimode optical cables, during signal transmission through which its intensity, polarization and other analog characteristics are controlled. Unlike fiber optic communication lines of the first type (12), when transmitting a signal, only its presence or absence is controlled (for transmitting a digital code). As an additional sensor (or sensors) of technical parameters (16), ambient temperature sensors, humidity sensors, etc. can be used to assess the operating conditions of the main sensors of technical parameters (13), (14), (15). As sensors (21) of the technical parameters sensors (16), any physical quantity sensors can be used that have an output in the form of a voltage in the ranges 0 ... 1 V, 0 ... 10 V or -10 ... + 10 V.

The maximum number of channels of an automated device for monitoring the equipment of an electrical substation is 16 pieces, this corresponds to the maximum number of sensors (13), (14), (15) and / or (16), which can contain one automated device for monitoring the equipment of an electric substation.

An automated device for monitoring the equipment of an electrical substation additionally contains a power supply unit (23), which is connected to all units of the device.

In the case of using sensors of technical parameters (13), (14), (15) and (16) with an electrical output, the latter are connected to the switching board (10) by electric communication lines (24).

An automated device for monitoring the equipment of an electrical substation operates as follows:

After turning on the power supply (23), the microcontroller (1) of the data acquisition and processing unit performs system diagnostics according to the algorithm recorded in the ROM (3). In the event of a malfunction or malfunction, as well as an unacceptable supply voltage level, the microcontroller (1) outputs a signal to the indicating device (6). Also, during diagnostics, the microcontroller (1) determines the converters (11), sensors (13), (14), (15) and / or (16) connected to the data acquisition and processing unit and the connection status via the main Ethernet / Profinet data exchange channel (8) and the redundant Ethernet / Profinet communication channel (9). All data during diagnosis is stored in RAM-1 (2) of the microcontroller (1).

After the diagnosis is completed, the automated device for monitoring the equipment of the electrical substation goes into normal operation. During normal operation, the following actions are performed:

but. Sensors (13), (14), (15) continuously measure the corresponding technical parameters of the substation equipment using sensitive elements of current (17), voltage (18) and temperature (19), respectively, converting the signals coming from the fiber optic communication lines of the second type (20) and transferring the measured values to the fiber optic communication lines of the first type (12) to the converters (11). Converters (11) decode the signal, converting the received optical signal into an electrical signal, and transmitting the signal through the circuit board (10) to the data controller (4). In the case of using sensors of technical parameters with an electrical output (signal), signals from such sensors are transmitted directly to the circuit board (see Fig. 3);

b. The sensitive elements (21) of the sensors (16) constantly measure the corresponding technical parameters of the substation equipment, transmitting the measured values in the form of an electric signal to the sensors (16). Then the sensors (16) encode the measured electrical signal and transmit the corresponding optical fiber-optic communication lines of the first type (12) to the converters (11). The converters (11) decode the signal, converting the received optical signal into an electrical signal, and transmitting the signal through the circuit board (10) to the data controller (4);

at. The data controller (4) checks all incoming signals for compliance with a given measurement range, after which it performs the following actions:

- if the signal value is incorrect, the data controller (4) generates a signal indicating an error on the corresponding data transmission channel, and sends this signal to the microcontroller (1);

- if the signal value corresponds to the norm, and the write flag for the ring buffer is set for the corresponding channel, the data controller (4) records the signal value in the ring buffer of the corresponding channel located in RAM-1 (2), and also transfers the signal value to the microcontroller ( one);

- if the signal value corresponds to the norm, and the flag for writing to the ring buffer is not set for the corresponding channel, the data controller (4) transfers the signal value to the microcontroller (1);

The microcontroller (1) continuously receives the values of the signals from the data controller (4), and, if necessary, can carry out additional checks of the values based on the criteria recorded in the ROM (3) and carry out intelligent data processing. For example, the microcontroller (1) can check the output of the signal value for the set thresholds and sharp increases - decrease the signal value, and also process the signal using mathematical formulas. The results of the checks, as well as the last received signal values, are stored in RAM-2 (5);

e. Upon request from the operator’s workstation, received via the main (8) or backup (9) Ethernet or Profinet data channel and received by the interface module (7), the microcontroller (1) can transfer the operator’s workstation to the main (8) or backup ( 9) Ethernet or Profinet data channel, the results of checks of signal values, the last received signal values, current information about the operation of the system, the number of connected sensors of technical parameters (13), (14), (15) and / or (16), and other information . Also, upon request, the flag can be set or reset in the ring buffer for each channel and the recorded ring buffer is transferred to the operator's workstation;

e. The operator’s workstation is continuously running software that allows the operator to send and receive messages on the primary (8) or backup (9) Ethernet or Profinet data channel from an automated monitoring system for electrical substation equipment. In the event of malfunctions and malfunctions in the system, the software immediately informs the operator of this with an indication of the emergency code;

g. In the event that communication with the workstation via the main or backup Ethernet or Profinet data channel is through an intermediate programmable logic controller, it continuously carries out communication diagnostics and transfers the technical parameters of the connection to the workstation.

Using the software of the operator working on the AWP, it is possible to control and set the following system parameters:

1. Threshold signal values for each channel;

2. The data exchange rate on the primary (8) or backup (9) Ethernet or Profinet data channel;

3. The period of data recording in the ring buffer of each channel;

4. Turn on and off the recording in the ring buffer of each channel;

5. Turn on and off certain channels of the device.

Additionally, the software allows updating the device software without putting it out of operation, as well as transferring data to SCADA (English Supervisory control and data acquisition, supervisory control and data collection) devices (systems) for convenient graphical display to the AWP operator.

If necessary, the device can operate autonomously without the use of AWP or PLC, or only with the use of PLC without AWP.

Technical parameters of the claimed device are shown in table 1.

The claimed technical solution allows to simplify the design of the device (system) and increase its versatility, reliability, and, as a result, reduce the cost of manufacture and operation. Increased versatility means the ability to measure more physical quantities and transmit more complete information about the current state of the object. Also, compared with analogues in the claimed technical solution, you can connect a larger number of sensors.

Additionally, the technical result consists in creating the possibility of using the device (system) for different types of industrial and civil facilities, which carry out a variety of technological processes, since the device does not involve the control of these technological processes, and does not require changes in the design and technological refinement of these objects. The latter will not require changes to their design and operational documentation.

In addition, in the inventive device on the power lines are only sensitive elements, which increases reliability and simplifies maintenance.

The claimed technical solution allows not only to transfer the measured current values of physical quantities, but also to produce their intellectual processing and recording in memory for subsequent transmission, which provides more economical use of the data channel and expands the scope.

We believe that the claimed technical solution "Automated device for monitoring electrical substation equipment" has all the criteria of the invention, since the totality of the claimed restrictive and distinctive features of the claims was not found when conducting a patent search for such devices (systems), and therefore meets the criterion of "novelty "

The set of features of the claims of the proposed device is unknown at this level of technology and does not follow well-known rules for the development of devices (systems) for monitoring electrical substations, namely:

- the use of sensors of technical parameters with sensors made of them on the fiber optic (s) cables: current, voltage and temperature, which increases the reliability and accuracy of measurements,

- use of a microcontroller instead of a computer, which greatly simplifies and cheapens the device (system) without reducing its functionality,

- the ability to use sensors of technical parameters with the output of signals both on optical and on electric communication lines,

- application for integration into the monitoring and control system of the electrical substation of local Profinet and / or Ethernet networks,

- the use of a common small-sized housing of the device for its mobile movement and universal use in various types of electrical substations,

- the ability to use up to 16 pieces of technical parameters sensors with one microprocessor-based data collection and processing unit for monitoring all elements of the electrical substation,

- the ability to connect several of the claimed devices to the workstation via local Profinet and / or Ethernet networks to increase the number of sensors of technical parameters if necessary,

- the possibility of applying in the device (system) a set (up to 65,535 values) for each measured parameter for each channel,

- ensuring universality in the selection of possible used sensors of technical parameters, which allows you to build flexible monitoring systems to cover all the necessary nodes and elements of electrical substations of various types,

- the ability to integrate the claimed technical solution in an electrical substation, without making changes to its technical documentation,

- the use of an algorithm for its operation developed for the device (system), which ensures the optimal operating mode and prevents in advance the approach and occurrence of emergency situations that can be prevented by the warned operator of the electrical substation,

proves compliance with the criterion of "inventive step".

The development, design and implementation of the proposed “Automated device for monitoring electrical substation equipment” does not present any structural, technical or technological difficulties. The device was developed by the applicant (in the totality of its features according to the claims), tested, and is now ready for production and use, which proves compliance with the criterion of "industrial applicability".

Literature

1. RF patent: RU 2319988 C2 dated March 20, 2008, IPC G02B 6/00, G02B 6/34, G01D 5/353, “Fiber-optic multisensor system, temperature / deformation sensor for a fiber optic multisensor system, sensor recording method (Options) ".

2. RF patent: RU 2394249 C1 of July 10, 2010, IPC G01R 31/08, "Method for determining the support of an overhead power line with a single-phase circuit and a ground fault."

3. RF patent: RU 2437193 C1 dated 12/20/2011, IPC Н02Н 3/28, Н02Н 7/04, “Method, system and device of differential protection”.

4. RF patent: RU 2521790 C1 dated July 10, 2014, IPC G01R 31/00, “Method for determining the location of damage to a branched power line”.

5. RF patent: RU 55219 U1 dated July 27, 2006, IPC Н02Н 3/28, Н02Н 7/045, “Microprocessor-based terminal for differential-phase protection of a power line”.

6. RF patent: RU 75482 U1 dated 08/10/2008, IPC G05B 15/00, G05B 19/00, “Automated control system and regulation of technological parameters”.

7. RF patent: RU 83829 U1 dated 06/20/2009, IPC F24D 1/00, “Automated information-measuring system”.

8. RF patent: RU 91635 U1 dated 02.20.2010, IPC G05B 15/00, "Automated system for managing civil and industrial facilities."

9. RF patent: RU 109614 U1 dated October 20, 2011, IPC H02J 13/00, “Cluster device for synchronized measurements of electric power system parameters”.

10. RF patent: RU 2470435 C1 dated 12/20/2012 (Н02Н 3/08, Н02Н 5/04) “Device for automatically limiting the overload of an overhead power line”.

11. US patent: US 4530025 A dated July 16, 1985, IPC Н02Н 3/28, Н02Н 7/22, “Current differential relay”.

12. US Patent: US 5615104 A dated 03/25/1997, IPC G05B 19/02, G05B 19/042, G05B 19/048, “Monitoring Method and Software Control Device”.

13. China Patent: CN 201904655 U of 07.20.1011, IPC H02J 13/00, “Monitoring device for online monitoring of high-voltage overhead power lines”.

14. RF patent: RU 130155 U1 dated July 10, 2013, IPC H02J 13/00, “Device for remote monitoring of the condition of a wire, lightning protection cable or overhead power line cable”.

15. RF patent: RU 115582 U1 of 04/27/2012, IPC H02J 13/00, “Remote monitoring device for the condition of an overhead power line wire”.

16. RF patent: RU 2222858 C1 dated January 27, 2004, IPC H02J 13/00, “Device for remote monitoring of the condition of an overhead power line wire (Options)”.

17. RF patent: RU 112534 U1 dated 01/10/2012, IPC H02J 13/00, “Remote control device for the condition of the wire and the security zone of an overhead power line and an overhead power line equipped with such a device.”

18. US Patent: US 4689752 A of 08.25.1987, IPC G01D 21/02, G01K 1/02, G01K 1/14, “System and device for monitoring and control of the power transmission system”

19. Chinese Patent: CN 203422438 U dated 05.02.2014, IPC G01R 31/02, G01R 31/08, G08C 17/02, “Real-time monitoring and fault location system for overhead lines of a power distribution network”.

20. RF patent: RU 2143165 C1 of 12.20.1999, IPC H02J 13/00, G01R 15/06, “Device for monitoring electric power systems”.

21. RF patent: RU 2468407 C1 dated November 27, 2012, IPC G05B 19/00, H02J 13/00, “Automated system for monitoring, protection and control of electrical substation equipment” - prototype.

Claims (2)

1. An automated device for monitoring the equipment of an electrical substation, containing a computer connected by communication lines to sensors of the technical parameters of the equipment of the electrical substation, characterized in that the computer is designed as a microprocessor unit for collecting and processing data, the sensitive elements of the sensors of technical parameters are taken out of the sensors themselves and connected to the last one or two fiber optic cables, which are connected respectively to the combined shaper and optical receiver their signals or with a separate shaper and receiver of optical signals, a microprocessor-based data acquisition and processing unit, technical parameters sensors are placed in one housing, which is additionally equipped with a common power supply, an indication device and an interface module, technical parameters sensors can be connected to a computer in the first case using electric communication lines or in the second case using a fiber optic communication line, while the sensor output is initially connected to an electric converter the signal into an optical one, which is connected by a fiber-optic communication line with the converters of the optical signal into an electrical signal, the technical parameters sensors can be made in the form of current, voltage, and temperature sensors, while the microprocessor data acquisition and processing unit contains a microcontroller connected to the communication module Profinet and / or Ethernet, ROM and RAM-1 memory, as well as a data controller, to which RAM-2 with a ring buffer and a circuit board with sensor inputs of technical pairs are connected ters, yield microprocessor data collection and processing unit connected on Profinet network and / or Ethernet with operator station. 2. An automated device for monitoring the equipment of an electrical substation according to claim 1, characterized in that the sensitive element of the current sensor is magneto-optical, based on the Faraday effect, the sensitive element of the voltage sensor is electro-optical, the electro-gyration effect, the sensitive element of the temperature sensor is fiber-optic.

Images