CN217590376U - Relay protection device and switch cabinet - Google Patents
Relay protection device and switch cabinet Download PDFInfo
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- CN217590376U CN217590376U CN202221138992.0U CN202221138992U CN217590376U CN 217590376 U CN217590376 U CN 217590376U CN 202221138992 U CN202221138992 U CN 202221138992U CN 217590376 U CN217590376 U CN 217590376U
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- 238000004146 energy storage Methods 0.000 claims description 6
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Abstract
The utility model provides a relay protection device and cubical switchboard, relay protection device includes: a protection control unit (11), said protection control unit (11) being adapted to be communicatively connected to an external telemechanical system (2); characterized in that the relay protection device (1) further comprises at least two of the following units: a motor control unit (12) connected to the protection control unit (11); a current monitoring unit (13) connected to the protection control unit (11); an arc monitoring unit (14) connected to the protection control unit (11); a temperature and humidity monitoring unit (15) connected to the protection control unit (11); a mechanical monitoring unit (16) which is connected to the protection control unit (11).
Description
Technical Field
The utility model relates to a cubical switchboard field, especially a relay protection device and cubical switchboard.
Background
Switch cabinets are important components in power systems, and the requirement for digitalization of the switch cabinets is increasing day by day. The key to the digitization of the switch cabinet is to monitor the state of the switch cabinet on line, which requires real-time data acquisition of the switch cabinet, such as current, voltage, temperature, humidity, etc. data in the switch cabinet.
In the prior art, different data need to be collected by products of different manufacturers, so that the data can be uploaded to a background only by additional networking, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a relay protection device, include: a protection control unit for communicative connection with an external telemechanical system; the relay protection device further comprises at least two of the following units:
a motor control unit connected to the protection control unit;
a current monitoring unit connected to the protection control unit;
an arc light monitoring unit connected to the protection control unit;
a temperature and humidity monitoring unit connected with the protection control unit;
a mechanical monitoring unit connected to the protection control unit.
According to the above technical scheme, because the utility model discloses an integrated motor control unit the current monitoring unit the arc light monitoring unit temperature humidity monitoring unit at least two among the mechanical monitoring unit, the online monitoring that can required information, and these information all can be sent to outside telemechanical system through original protection the control unit, need not additionally to arrange communication line like this, can save the cost.
According to the relay protection device, optionally, the protection control unit is connected with the motor control unit through an SPI bus. The connection mode is very convenient and low in cost.
According to the relay protection device, optionally, the protection control unit and the current monitoring unit are connected through an SPI bus. The connection mode is very convenient and low in cost.
According to the relay protection device described above, optionally, the protection control unit and the arc light monitoring unit are connected by an SPI bus. The connection mode is very convenient and low in cost.
According to the relay protection device, optionally, the protection control unit and the temperature and humidity monitoring unit are connected through a UART bus. The connection can be realized only by corresponding jacks, and the connection is very convenient.
According to the relay protection device, optionally, the protection control unit and the mechanical monitoring unit are connected through a UART bus. The connection can be realized only by corresponding sockets, and the connection is very convenient and fast
According to the relay protection device, optionally, the motor control unit is connected with one or more motors, and the motors are located in a switch cabinet; or alternatively
The current sensor in the current monitoring unit is connected in series with at least one of the following three loops: a handcart motor control loop, a ground switch motor control loop, a breaker opening and closing coil loop and an energy storage motor loop; or
The arc monitoring unit is connected with one or more arc sensors, and the arc sensors are positioned in a switch cabinet; or
The temperature and humidity monitoring unit is connected with one or more temperature and humidity sensors, and the temperature and humidity sensors are positioned in a switch cabinet; or
The mechanical monitoring unit is connected with at least one of the following devices: a pressure sensor, a lightning arrester and a temperature and humidity controller.
According to the relay protection device described above, optionally, the motor control unit, the current monitoring unit, the arc light monitoring unit, the temperature and humidity monitoring unit, and the mechanical monitoring unit are all modular circuits. Therefore, the needed monitoring unit can be arranged in the relay protection device according to actual needs, and personalized requirements are realized. Furthermore, if one of the modules has a problem, it does not interfere with the protection control unit.
According to the relay protection device, optionally, the external telecontrol system is a SCADA system.
The utility model also provides a cubical switchboard, include as above arbitrary the relay protection device.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a schematic structural diagram of a relay protection device according to an embodiment of the present invention.
Reference numerals
1-protective relay device
11-protection control unit
12-Motor control Unit
13-Current monitoring Unit
14-arc monitoring unit
15-temperature and humidity monitoring Unit
16-mechanical monitoring unit
2-telemechanical system
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.
The utility model provides a relay protection device to realize integration monitoring scheme. This relay protection device is arranged in realizing the on-line monitoring to the cubical switchboard, and motor, arrester, divide-shut brake coil, earthing switch etc. that mention below all are the structure in the cubical switchboard, and its concrete structure all belongs to prior art, no longer gives unnecessary details.
As shown in fig. 1, the relay protection device 1 of the present invention includes a protection control unit 11 and at least two of the following units: a motor control unit 12, a current monitoring unit 13, an arc monitoring unit 14, a temperature and humidity monitoring unit 15, a mechanical monitoring unit 16.
The protection control unit 11 is used to implement a basic relay protection function to cut off a fault, and the structure and the working principle of the protection control unit 11 belong to the prior art and are not described herein again. The protection control unit 11 corresponds to a main communication chip, and can acquire data of other monitoring units and transmit the data to the external telecontrol system 2. The external telemechanical system 2 is for example a SCADA system. The telecontrol system 2 is originally a system in which the protection control unit 11 needs to perform communication.
The motor control unit 12 is connected to the protection control unit 11. The motor control unit 12 is configured to monitor a working condition of a motor in the switch cabinet, and feed back the working condition of the motor to the protection control unit 11 in real time, so that the protection control unit 11 can implement protection according to the working condition of the motor. The motor here is, for example, a motor for controlling the position of the ground knife or a motor for controlling the position of the hand truck. The motor control unit 12 can be connected to the protection control unit 11 through an SPI (Serial Peripheral Interface) bus, which is very convenient and low in cost. In addition, the protection control unit 11 can also send the monitored working condition of the motor to the telemechanical system 2, and the telemechanical system 2 can realize the control of the motor control unit 12 through the protection control unit 11 according to the working condition, so as to realize the control of the motor. The monitoring of the motor can also be realized according to the current of the motor fed back by the current monitoring unit 13. As an exemplary illustration, the motor control unit 12 may be connected to a motor, and may obtain information of the motor in real time, where the connection may be a physical connection. The motor control unit 12 can be implemented by a circuit in the prior art, and will not be described in detail herein.
The current monitoring unit 13 is connected to the protection control unit 11. The current monitoring unit 13 is used for monitoring the current of the handcart motor, the current of the switching-on and switching-off coil of the circuit breaker, the current of the energy storage motor or the current of the ground switch motor, and sending real-time data of the current to the protection control unit 11. The protection control unit 11 can respectively identify whether the handcart is in operation, the breaker is switched on or off, and the energy storage motor or the grounding switch motor is in problem or not by analyzing the data of the currents, and then the protection control unit 11 can determine whether to trigger corresponding protection or give a corresponding diagnosis result according to the identification result. The current monitoring unit 13 can be connected with the protection control unit 11 through the SPI bus, and the connection mode is very convenient and low in cost. In addition, the protection control unit 11 can also send monitored current data to the telemechanical system 2, the telemechanical system 2 can judge whether a fault occurs in the process of switching on and off of a handcart motor and a circuit breaker or a ground switch motor according to the current data, and a worker can know the relevant information of the current and the fault through the telemechanical system 2, so that the telemechanical system 2 can control the corresponding motor through the protection control unit 11 and the motor control unit 12 according to the information. As an exemplary illustration, the current monitoring unit 13 has a current sensor, such as a hall current sensor, which may also be connected in series with at least one of the following three loops: the handcart motor control circuit, the ground knife motor control circuit, the circuit breaker opening and closing coil circuit and the energy storage motor circuit can be physically connected. The number of the current sensors may be set according to actual needs, for example, each loop corresponds to one current sensor, and of course, one current sensor may correspond to a plurality of loops. The current sensor is used for acquiring the current of the motor, the current of the switching-on/off coil, the current of the energy storage motor and the current of the ground switch motor.
The arc monitoring unit 14 is connected to the protection control unit 11 for monitoring the intensity of the arc in the switchgear cabinet. The arc monitoring unit 14 sends the arc data collected in real time to the protection control unit 11, and the protection control unit 11 determines whether to trigger corresponding protection according to the arc data. The arc light monitoring unit 14 can be connected with the protection control unit 11 through the SPI bus, and such a connection manner is very convenient and low in cost. In addition, the protection control unit 11 can also send the monitored arc data to the telecontrol system 2, and the staff can know the relevant information of arc protection through the telecontrol system 2. As an illustrative example, the arc monitoring unit 14 may be connected to one or more arc sensors, where the connection may be a physical connection. The arc sensor can acquire data of the arc in the switchgear and send the data to the arc monitoring unit 14. The arc monitoring unit 14 can be implemented by a circuit in the prior art, and will not be described in detail herein.
The temperature and humidity monitoring unit 15 is connected to the protection control unit 11. The temperature and humidity monitoring unit 15 monitors the ambient temperature and/or the ambient humidity in real time, and sends the monitored temperature or humidity to the protection control unit 11, so that the protection control unit 11 determines whether to trigger a corresponding alarm function according to the real-time temperature or humidity. The temperature monitor is connected with the protection control unit 11 through a UART (Universal Asynchronous Receiver/Transmitter) bus, and connection can be realized only by corresponding sockets, so that the temperature monitor and the protection control unit are very convenient and fast. In addition, the protection control unit 11 may also send the monitored temperature or humidity to the telemechanical system 2, and the staff may obtain real-time information of the temperature and/or humidity through the telemechanical system 2. As an exemplary illustration, the temperature and humidity monitoring unit 15 may be connected to a temperature and humidity sensor, which may also be implemented by a combination of a temperature sensor and a humidity sensor. The connection may be a physical connection or a wireless connection, and may be specifically selected according to actual needs. The temperature and humidity sensor is located in a position to be monitored in the switch cabinet. The temperature and humidity monitoring unit 15 can be implemented by a circuit in the prior art, and will not be described in detail herein.
The mechanical monitoring unit 16 is connected to the protection control unit 11. The mechanical monitoring unit 16 can acquire the pressure of gas in the gas tank of the switch cabinet, monitor the lightning arrester, and control a temperature and humidity controller in the switch cabinet to adjust the temperature or humidity in the switch cabinet. The protection control unit 11 can be connected with the mechanical monitoring unit 16 through a UART bus, and the connection can be realized only by corresponding sockets, so that the protection control unit is very convenient. In addition, the protection control unit 11 may also transmit information monitored by the mechanical monitoring unit 16 to the telemechanical system 2, and a worker may acquire the information monitored by the mechanical monitoring unit 16 through the telemechanical system 2. As an exemplary illustration, the mechanical monitoring unit 16 is connected to at least one of the following devices: a pressure sensor, a lightning arrester and a temperature and humidity controller. The temperature and humidity controller can control the temperature or the humidity in the switch cabinet. The connection here may be a physical connection or a wireless connection. The mechanical monitoring unit 16 can be implemented by a circuit in the prior art, and will not be described in detail herein.
Alternatively, the motor control unit 12, the current monitoring unit 13, the arc light monitoring unit 14, the temperature and humidity monitoring unit 15, and the mechanical monitoring unit 16 are all modular circuits, for example, respectively disposed on separate circuit boards, so that the required units can be disposed in the relay protection device 1 according to actual needs, thereby realizing personalized requirements. Furthermore, if one of the units is out of order, it does not interfere with the protection control unit 11.
In the relay protection device 1, at least two of the motor control unit 12, the current monitoring unit 13, the arc light monitoring unit 14, the temperature and humidity monitoring unit 15 and the mechanical monitoring unit 16 are integrated, so that required information can be monitored on line, the information can be sent to the external telecontrol system 2 through the original protection control unit 11, a communication line does not need to be additionally arranged, and the cost can be saved. And because can realize the online control in many aspects to the cubical switchboard through a relay protection device 1, this relay protection device 1 can realize more accurate protect function according to the polymorphic type data that acquire, for example can judge more accurately whether break down. In addition, the relay protection device 1 can save operation and maintenance cost, reduce operation and maintenance difficulty and save the space of a switch cabinet.
The utility model also provides a cubical switchboard, this cubical switchboard include any kind of relay protection device of the aforesaid.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A relay protection device (1) is provided with: a protection control unit (11), said protection control unit (11) being adapted to be communicatively connected to an external telemechanical system (2); characterized in that the relay protection device (1) further comprises at least two of the following units:
a motor control unit (12) connected to the protection control unit (11);
a current monitoring unit (13) connected to the protection control unit (11);
an arc monitoring unit (14) connected to the protection control unit (11);
a temperature and humidity monitoring unit (15) connected to the protection control unit (11);
a mechanical monitoring unit (16) connected to the protection control unit (11).
2. Relay protection device (1) according to claim 1, wherein the protection control unit (11) and the motor control unit (12) are connected by an SPI bus.
3. Relay protection device (1) according to claim 1, wherein said protection control unit (11) and said current monitoring unit (13) are connected by SPI bus.
4. Relaying protection device (1) according to claim 1, characterized in that said protection control unit (11) and said arc light monitoring unit (14) are connected by means of SPI bus.
5. The relay protection device (1) according to claim 1, wherein the protection control unit (11) and the temperature and humidity monitoring unit are connected by a UART bus.
6. Relay protection device (1) according to claim 1, wherein said protection control unit (11) and said mechanical monitoring unit (16) are connected by a UART bus.
7. Relay protection device (1) according to claim 1, wherein said motor control unit (12) is connected to one or more motors, said motors being located in a switch cabinet; or
The current sensor in the current monitoring unit (13) is connected in series with at least one of the following three loops: a handcart motor control loop, a ground switch motor control loop, a breaker opening and closing coil loop and an energy storage motor loop; or
The arc monitoring unit (14) is connected to one or more arc sensors, which are located in a switchgear cabinet; or
The temperature and humidity monitoring unit (15) is connected with one or more temperature and humidity sensors, and the temperature and humidity sensors are positioned in a switch cabinet; or alternatively
The mechanical monitoring unit (16) is connected to at least one of the following: a pressure sensor, a lightning arrester and a temperature and humidity controller.
8. Relay protection device (1) according to any one of claims 1-7, characterized in that said motor control unit (12), said current monitoring unit (13), said arc light monitoring unit (14), said temperature and humidity monitoring unit (15), and said mechanical monitoring unit (16) are all modular circuits.
9. Relay protection device (1) according to any of claims 1-7, characterized in that the external telemechanical system (2) is a SCADA system.
10. Switchgear, characterized in that it comprises a relay protection device (1) according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221138992.0U CN217590376U (en) | 2022-05-13 | 2022-05-13 | Relay protection device and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221138992.0U CN217590376U (en) | 2022-05-13 | 2022-05-13 | Relay protection device and switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217590376U true CN217590376U (en) | 2022-10-14 |
Family
ID=83551022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221138992.0U Active CN217590376U (en) | 2022-05-13 | 2022-05-13 | Relay protection device and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217590376U (en) |
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2022
- 2022-05-13 CN CN202221138992.0U patent/CN217590376U/en active Active
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