CN202134957U - Distribution automation remote terminal - Google Patents
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- CN202134957U CN202134957U CN201020638577U CN201020638577U CN202134957U CN 202134957 U CN202134957 U CN 202134957U CN 201020638577 U CN201020638577 U CN 201020638577U CN 201020638577 U CN201020638577 U CN 201020638577U CN 202134957 U CN202134957 U CN 202134957U
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Abstract
The utility model discloses a distribution automation remote terminal, which relates to the field of distribution network technology. The occupation space requirement of a ring network cabinet can be reduced when the ring network cabinet is monitored, and the monitoring security and stability can be enhanced. The distribution automation remote terminal provided in the utility model includes a data concentrator and at least two independent unit type monitoring terminals which are arranged according to the number or space distribution of all out-going wires in the ring network cabinet. The unit type monitoring terminals are used to monitor the corresponding out-going wires in the ring network cabinet, and send the obtained monitoring information to the data concentrator; and the data concentrator is used to acquire the monitoring information, and manage the out-going wires in the ring network cabinet according to the monitoring information. The scheme provided in the embodiment of the utility model is suitable for the occasion requiring monitoring of a compact ring network cabinet.
Description
Technical Field
The utility model relates to a monitoring facilities especially relates to a distribution automation remote terminal, belongs to and joins in marriage net technical field.
Background
In the early stage of power grid construction, more importance is placed on power generation and power transmission, and power distribution and utilization links are usually overlooked. However, after several rounds of urban rural power grid transformation, a large amount of capital is invested in China, and a large amount of lines, switches, transformers and the like are transformed to construct a distribution network. The distribution network is used as a carrier for urban and rural power supply, the stability and the safety of the distribution network are directly related to the power supply safety of thousands of households, and the distribution network has important economic value and social significance.
The ring main unit is a basic component of a city distribution network, and the safety of the ring main unit is an important guarantee for the safety of a distribution network feeder line. In recent years, in an urban power grid, power supply accidents caused by faults of a ring main unit are frequent. Common ring main unit faults include switch malfunction, protection failure, external force damage, switch gas leakage, cable head heating explosion and the like. An effective method for solving the problem is to install a Distribution Automation Remote-Terminal-Units (DTU) in the ring main unit. The existing DTU is a cabinet type closed device, a main control chip and interfaces connected with all outgoing lines in the ring main unit are arranged in a cabinet body of the DTU, and all outgoing lines of the ring main unit are respectively connected to the DTU so as to monitor the ring main unit by using the DTU and avoid or eliminate the fault of the ring main unit.
However, as the urban economic development has higher and higher requirements for primary equipment such as ring main units and the like, the defects of the prior art are more and more obvious, for example, due to the shortage of urban land resources, the compact ring main unit becomes the first choice when a network is distributed, and the existing DTU has large volume and difficult installation, and is difficult to be applied to the compact ring main unit with small internal space; moreover, the ring main unit usually has multiple outgoing lines, and the DTU can only be fixed at a certain position in the ring main unit, so that when the cables connect the outgoing lines of each path of the ring main unit to the DTU, the cable routing distance is too long, the structure is complex, the safety is poor, and when the outgoing line fails, the monitoring on all other outgoing lines is affected, and the whole ring main unit cannot work normally.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a distribution automation remote place terminal can reduce the requirement to the shared space of looped netowrk cabinet when monitoring the looped netowrk cabinet, improves the security and the stability of monitoring.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the embodiment of the utility model provides a distribution automation distant place terminal includes: the monitoring system comprises a data concentrator and at least two independent unit type monitoring terminals, wherein the unit type monitoring terminals are arranged according to the number or spatial distribution of outgoing lines in each path in the ring main unit; the unit type monitoring terminal is used for monitoring corresponding outgoing lines in the ring main unit and sending obtained monitoring information to the data concentrator; and the data concentrator is used for collecting the monitoring information so as to manage each outgoing line of the ring main unit according to the monitoring information.
According to a preferred embodiment of the distribution automation remote terminal, wherein an independent unit-type monitoring terminal is provided for each outgoing line; or, the spatially adjacent outgoing lines are divided into a group, and an independent unit type monitoring terminal is arranged for each group of outgoing lines.
According to a preferred embodiment of the distribution automation remote terminal, one end of the unit-type monitoring terminal is connected to the outgoing line, the other end of the unit-type monitoring terminal is connected to the data concentrator through a high-speed bus, and the unit-type monitoring terminal is disposed in the interval of the outgoing line.
According to a preferred embodiment of the distribution automation remote terminal, the distribution automation remote terminal further comprises a power module for supplying power to the unit monitoring terminal and the data concentrator. The power supply module is used for taking power from a mains supply or a voltage transformer PT; or the power module takes electricity from the direct-current maintenance-free valve-controlled lead-acid battery; or the power module can take power from the cable in a double-path mode.
According to a preferred embodiment of the distribution automation remote terminal, the terminal further comprises a power supply direction judgment module, which is used for automatically judging the power supply direction in a ring network power supply system and uploading the judgment result to a software system of a control end, so that the topological structure of the monitoring software is automatically updated.
According to a preferred embodiment of the distribution automation remote terminal, data or information in the terminal is communicated using a two-way channel, the two-way channel comprises a main channel and a backup channel, and when the main channel fails in communication, the backup channel is used for transmitting the data or information.
According to a preferred embodiment of the distribution automation remote terminal, when the distribution automation remote terminal is installed in a ring main unit having a voltage transformer PT cabinet, the data concentrator is installed on a side wall or a top of the ring main unit, and the high-speed bus is routed from a groove of the ring main unit body, or the high-speed bus is routed from a routing groove at the top of the ring main unit; when the distribution automation remote terminal is installed in a ring main unit without a PT cabinet, the data concentrator is directly installed at the top of the corresponding outgoing line.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for monitoring a ring main unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a distribution automation remote terminal according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of an example of a distribution automation remote terminal according to another embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to solve the problem that brings when current DTU monitors the looped netowrk cabinet, the embodiment of the utility model provides a novel method and novel DTU of monitoring looped netowrk cabinet. The utility model discloses a technical concept mainly lies in having realized a distributed architecture's monitoring scheme through introducing the mechanism of a "redundancy", and this kind of "redundancy" indicates to adopt a DTU monitoring all to be qualified for the next round of competitions in a looped netowrk cabinet for prior art, the utility model discloses a plurality of unit formula monitor terminal monitor being qualified for the next round of competitions. The 'redundancy' design greatly reduces the requirement on the occupied space of the ring main unit when the ring main unit is monitored, and improves the safety and the stability of monitoring.
As shown in fig. 1, an embodiment of the present invention provides a method for monitoring a ring main unit, including the following steps:
step 11: monitoring the outgoing lines by utilizing at least two independent unit type monitoring terminals according to the number or spatial distribution of each path of outgoing lines in the ring main unit;
step 12: sending the monitoring information obtained by each unit type monitoring terminal to a data concentrator;
step 13: and managing each outgoing line of the ring main unit by utilizing the monitoring information collected by the data concentrator.
The embodiment of the utility model provides an utilize independent unit formula monitor terminal to realize a monitoring scheme that has distributed architecture, because this kind of monitoring scheme utilizes a plurality of unit formula monitor terminals to monitor being qualified for the next round of competitions, thereby make single unit formula monitor terminal have small in size, convenient to install's characteristics, greatly reduced the requirement of looped netowrk cabinet to the space, reduced the distance of walking the line in the looped netowrk cabinet, be applicable to compact looped netowrk cabinet and other occasions that require higher space; in addition, the scheme can realize independent monitoring on a plurality of outgoing lines or one outgoing line, avoids the influence of the fault of the one outgoing line on all lines, and improves the safety and stability of monitoring.
The following describes a method for monitoring a ring main unit according to another embodiment of the present invention.
Step 11: and monitoring the outgoing lines by utilizing at least two independent unit type monitoring terminals according to the quantity or spatial distribution of each path of outgoing lines in the ring main unit.
In step 11, in one case, the unit type monitoring terminals may be set according to the number of outgoing lines, and the outgoing lines are monitored by using an independent unit type monitoring terminal for each outgoing line, at this time, the number of the unit type monitoring terminals installed in the ring main unit is the same as the number of the outgoing lines in the ring main unit, for example, when 32 outgoing lines exist in the ring main unit, 32 unit type monitoring terminals are installed, in this case, the monitoring information of each outgoing line can be accurately obtained, and accurate monitoring and management are performed according to the monitoring information; or, in another case, the unit type monitoring terminals may be arranged according to spatial distribution of the outgoing lines, the outgoing lines adjacent in space are divided into one group, and for each group of outgoing lines, an independent unit type monitoring terminal is used for monitoring, for example, when there are 3 outgoing lines which are close in spatial distance, the 3 outgoing lines adjacent in space are divided into one group, and one unit type monitoring terminal is used for monitoring the group. In this case, the cost can be further saved, and since one of the outstanding disadvantages in the prior art is that the requirement for the space occupied by the ring main unit is too high, the division of the wire groups according to the spatial distribution of the outgoing wires is mainly taken as an example for description here, it can be understood that a person skilled in the art can also divide the wire groups according to other requirements, for example, the outgoing wires with similar or identical monitoring requirements are divided into one group, and a unit type monitoring terminal is set for the group of outgoing wires.
In the above two cases, the unit type monitoring terminals used for each outgoing line or each group of outgoing lines may be the same or different, but the performance of the unit type monitoring terminal must at least meet the required monitoring requirements. For example, only one outgoing line needs to be monitored by using a first unit type monitoring terminal, and multiple outgoing lines need to be monitored by using a second unit type monitoring terminal, so that the performance of the first unit type monitoring terminal can be lower than that of the second unit type monitoring terminal on the premise of meeting the monitoring requirement, or the performance of the first unit type monitoring terminal is the same as that of the second unit type monitoring terminal.
Because foretell unit formula monitor terminal need not monitor all being qualified for the next round of competitions in the looped netowrk cabinet to only need to have the function that accords with the monitoring requirement, so can very small and exquisite volume realize, and it is also very convenient to install, thereby makes the technical scheme of the embodiment of the utility model is applicable to almost all electrical equipment manufacturers' looped netowrk cabinet, specially adapted compact looped netowrk cabinet to, this technical scheme also need not to reform transform the appearance and the structure of existing looped netowrk cabinet when being applied to the looped netowrk cabinet that has built the shipment, can compatible current equipment well, has saved cost and consumption.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution sequence.
The monitoring information obtained by the monitoring of the unit type monitoring terminal includes, but is not limited to, one or a combination of the following items: remote signalling information, remote measuring information, remote control information, remote regulating information and fault monitoring information. The remote traffic information mainly refers to information required for remotely testing the current state of the switch, such as the switch position, the ground switch position, a remote local signal, a switch energy storage signal, a switch gas pressure state, a node temperature state and the like. The remote measurement information mainly refers to the voltage, current, power and other quantities on a remote telemetry line. The remote control quantity information mainly refers to remote control of some remote equipment, such as heating starting, fan starting, alarm state resetting, communication resetting and the like. The remote adjustment amount information mainly refers to information required for remote adjustment of remote equipment. The fault monitoring information mainly comprises information of short-circuit fault of the outgoing line and/or information of ground fault and the like.
When the monitoring information includes fault monitoring information, a special fault judgment module can be arranged in the unit type monitoring terminal, and is used for judging whether the line is short-circuited and/or has a ground fault according to the judgment basis, generating fault monitoring information and reporting the fault monitoring information to the control end.
Furthermore, the physical quantity in the three-stage current protection can be selected as the judgment basis for judging the short-circuit fault, such as a quick-break value, an overcurrent value or a delay value. The three-section current protection is a whole set of protection formed by the mutual matching of current quick break, time-limited current quick break and overcurrent protection. The three phases differ mainly in the principle of choice of the starting current. The current quick-break and time-limited current quick-break protection is set according to the maximum short-circuit current which avoids a certain point, and the over-current protection is set according to the maximum load current which avoids the point. Zero sequence current, zero sequence voltage or transient capacitance discharge current of the grounding instant can be selected as the judgment basis for judging the grounding fault.
Step 12: and sending the monitoring information obtained by each unit type monitoring terminal to a data concentrator.
The unit type monitoring terminal can send the monitoring information to the data concentrator through a high-speed bus. At most 32 unit-type monitoring terminals can be simultaneously connected to one data concentrator, that is, at most 32 outgoing lines (or groups) can be simultaneously monitored, and generally, the requirement of monitoring can be met by installing one data concentrator in the ring main unit.
Step 13: and managing each outgoing line of the ring main unit by utilizing the monitoring information collected by the data concentrator.
The data concentrator can be configured to have a touch screen for the convenience Of user operation. The management can be to manage each outgoing line locally according to the monitoring information, or to manage remotely according to the received monitoring information at different places.
The embodiment of the utility model provides an in information or communication interface between data (like RS485 RS232 interface, wireless radio frequency communication module interface or GPRS/GSM module interface) all have the double-circuit structure, have two way communication channel promptly, be the main entrance all the way, spare channel all the way, in case communication fault appears in the main entrance, then start corresponding spare channel, utilize spare channel to continue the transmission of information or data.
The embodiment of the utility model provides an utilize independent unit formula monitor terminal to realize a monitoring scheme that has distributed architecture, because this kind of monitoring scheme utilizes a plurality of unit formula monitor terminals to monitor being qualified for the next round of competitions, thereby make single unit formula monitor terminal have small in size, convenient to install's characteristics, greatly reduced the requirement of looped netowrk cabinet to the space, reduced the distance of walking the line in the looped netowrk cabinet, be applicable to compact looped netowrk cabinet and other occasions that require higher space; in addition, the scheme can realize independent monitoring on a plurality of outgoing lines or one outgoing line, avoids the influence of the fault of the one outgoing line on all lines, and improves the safety and stability of monitoring.
The utility model also provides a distribution automation remote terminal, refer to fig. 2, this terminal includes independent unit type monitor terminal 21 and data concentrator 22, the unit type monitor terminal 21 is set up according to the quantity or the spatial distribution of each way of being qualified for the next round of competitions in the looped netowrk cabinet;
the unit type monitoring terminal 21 is configured to monitor a corresponding outgoing line in the ring main unit, and send obtained monitoring information to the data concentrator 22; the data concentrator 22 is configured to collect the monitoring information, so as to manage each outgoing line of the ring main unit according to the monitoring information.
Furthermore, an independent unit type monitoring terminal 21 is arranged for each path of outgoing line, and each unit type monitoring terminal 21 can be arranged in the interval of each path of outgoing line; or, the spatially adjacent outgoing lines are divided into a group, an independent unit type monitoring terminal 21 is arranged for each group of outgoing lines,
further, one end of the unit type monitoring terminal 21 is connected to the outgoing line, the other end of the unit type monitoring terminal 21 is connected to the data concentrator 22 through a high-speed bus, and the unit type monitoring terminal 21 is installed in the interval of the selected outgoing line. The utility model discloses the scheme is through the monitoring framework of distributing type, can guarantee to connect each way and be qualified for the next round of competitions and the cable length between unit monitor terminal 21 can not the overlength, for example, be connected to the line with unit monitor terminal with the cable that is no longer than 1 meter, and because the main data communication who goes on between unit monitor terminal and the data concentrator, only need link to each other through the data line, thereby the problem that the cable routing distance overlength brought among the prior art has been solved, monitoring system's structure has been simplified, the security of monitoring has been improved.
The interactive interface of the unit-type monitoring terminal may be provided with operation keys, such as a "remote permission" key, a "key lock" key, a "protection permission" key, and a "reset self-check" key, which are only given as an example and do not limit specific names of the keys. A remote control mode or a local control mode is set by utilizing a remote permission key, the remote control mode can remotely control and manage outgoing lines, and the local control mode can locally control and manage the outgoing lines; each key is locked by using a key locking key so as to avoid mistakenly triggering the key; starting local protection or closing a protection function by using a protection permission key; the terminal self-checking can be started by utilizing a reset self-checking key to eliminate a fault signal. An operation key can be arranged for controlling the switch-off and switch-on operations of the switch. An indicator light can be further arranged on the interactive interface of the unit type monitoring terminal, so that a user can conveniently operate or relevant information can be timely informed to the user. The indicating lamps indicate one or more of states of Phase (Phase), overcurrent protection, grounding protection, zero-sequence current overrun, zero-sequence voltage overrun, overvoltage, undervoltage, open Phase, system power supply, fault brake opening, switch locking, abnormal closing, abnormal opening, abnormal air pressure, stored energy of a spring, temperature overrun, automatic reclosing and the like according to received indicating information.
Because a maximum of 32 unit type monitoring terminals can be simultaneously connected to one data concentrator, the monitoring requirements of most ring main units can be basically met, and therefore, the data concentrator can be arranged for the distribution automation remote terminal and a power supply module can be further arranged. The embodiment of the utility model provides an example of distribution automation distant place terminal is exactly by the unit formula monitor terminal, a data concentrator and a power module constitution with the quantity of being qualified for the next round of competitions is the same. For example, when the power is supplied by using alternating current, the power module may use commercial power or a voltage transformer (PT) to obtain power; when a direct-current backup power supply is adopted for supplying power, the power module can use a direct-current maintenance-free valve-controlled lead-acid battery to obtain electricity; when a Current Transformer (CT) is adopted for supplying power, the power module can get power from the cable in two ways.
The distribution automation remote terminal can adopt the embedded real-time operating system as a development tool, so that the distribution automation remote terminal is still in a better performance state when executing a plurality of tasks, and the real-time performance of communication and the accuracy of accident recording are ensured. In addition, the distribution automation remote terminal adopts high-speed 16-bit analog-to-digital (A/D) conversion, and the accuracy of monitoring information is ensured.
Furthermore, the distribution automation remote terminal may include a power supply direction determination module, which is configured to automatically determine a power supply direction in a ring network power supply system, and upload a determination result to a software system of the control end, so that the topology structure of the monitoring software is automatically updated. The distribution automation remote terminal can also record the system state of the instantaneous fault by using the unit type monitoring terminal and upload the system state to the control terminal, or record and upload the original data of the waveform and restore the waveform in background monitoring software of the control terminal.
Furthermore, the distribution automation remote terminal can also accurately detect the short circuit and the grounding fault of the feeder line, solves the problem caused by misjudgment of a short circuit fault section caused by backward power transmission of a circuit after the switch is opened, and solves the problem caused by misjudgment of a single-phase grounding section of an arc suppression coil grounding system.
The unit type monitoring terminal can be installed in the interval of the outgoing line. One end of the unit type monitoring terminal is connected with the outgoing line, the other end of the unit type monitoring terminal is connected to the data concentrator through a high-speed bus, and the high-speed bus can route wires from a U-shaped groove on the surface of the ring main unit and can also route wires from a wire-routing groove on the top of the ring main unit. Here, only an exemplary description is given, and those skilled in the art can understand that when the ring main units have different structures, the installation manner and the wiring manner of the unit type monitoring terminal, the data concentrator or the power module may also be different, and the following description will be given by using two exemplary cases:
in the first case, the ring main unit provided with the PT cabinet.
The ring main unit provided with a Phase voltage Transformers (PT) cabinet has a structure, see fig. 3, and includes, from bottom to top, a PT layer, a power layer (e.g., 48V dc power supply), a meter layer (which may be used to install a meter), a communication device layer (which is installed with a communication device, such as an optical transceiver), and a data concentrator. Fig. 3 shows a scenario when there are four outgoing lines in the ring main unit, each outgoing line is connected to a unit type monitoring terminal, each unit type monitoring terminal is connected to a data concentrator through a high-speed bus, and the data concentrator is installed on the side wall or the top of the ring main unit. The high-speed bus can pass through a groove (such as a U-shaped groove) of the ring main unit body, and can also pass through a wiring groove at the top of the ring main unit. The unit type monitoring terminal is arranged in the interval of the outgoing line, the volume of the unit type monitoring terminal can be controlled to be 15cm multiplied by 5cm multiplied by 10cm multiplied by the height multiplied by the width, and the volume miniaturization is realized. The data concentrator can adopt a rack type and a 2U case, and can also be realized in a mode of smaller volume and more convenient installation according to the requirement.
And in the second case, the ring main unit without the PT cabinet. In this case, the unit type monitoring terminal may be installed in the interval of the outgoing lines, and the data concentrator, the communication device, and the power module may be directly installed on the top of the corresponding outgoing line.
The utility model discloses the concrete working method of each functional module in the product embodiment can refer to the utility model discloses a method embodiment is no longer repeated here.
The embodiment of the utility model provides an utilize independent unit formula monitor terminal to realize a monitoring scheme that has distributed architecture, because this kind of monitoring scheme utilizes a plurality of unit formula monitor terminals to monitor being qualified for the next round of competitions, thereby make single unit formula monitor terminal have small in size, convenient to install's characteristics, greatly reduced the requirement of looped netowrk cabinet to the space, reduced the distance of walking the line in the looped netowrk cabinet, be applicable to compact looped netowrk cabinet and other occasions that require higher space; in addition, the scheme can realize independent monitoring on a plurality of outgoing lines or one outgoing line, avoids the influence of the fault of the one outgoing line on all lines, and improves the safety and stability of monitoring.
It is clear to those skilled in the art that the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A distribution automation remote terminal is characterized in that the terminal comprises a data concentrator and at least two independent unit type monitoring terminals, wherein the unit type monitoring terminals are arranged according to the number or spatial distribution of outgoing lines in each path in a ring main unit;
the unit type monitoring terminal is used for monitoring corresponding outgoing lines in the ring main unit and sending obtained monitoring information to the data concentrator;
and the data concentrator is used for collecting the monitoring information so as to manage each outgoing line of the ring main unit according to the monitoring information.
2. The distribution automation remote terminal of claim 1 wherein the cellular monitoring terminal is configured according to the number or spatial distribution of the outgoing lines in the ring main unit and comprises:
setting an independent unit type monitoring terminal for each outgoing line; or,
and the spatially adjacent outgoing lines are divided into a group, and an independent unit type monitoring terminal is arranged for each group of outgoing lines.
3. The distribution automation remote terminal of claim 1 wherein one end of the unitary monitoring terminal is connected to the outgoing line and the other end of the unitary monitoring terminal is connected to the data concentrator via a high speed bus.
4. The distribution automation remote terminal of claim 1 wherein the unitary monitoring terminal is disposed within the spacing of the outgoing lines.
5. The distribution automation remote terminal of claim 1 further comprising a power module for powering the unitary monitoring terminal and the data concentrator.
6. The distribution automation remote terminal of claim 5 wherein the power module draws power from a utility power or a voltage transformer PT; or the power module takes electricity from the direct-current maintenance-free valve-controlled lead-acid battery; or the power module can take power from the cable in a double-path mode.
7. The distribution automation remote terminal of claim 1 further comprising a power supply direction determination module for automatically determining a power supply direction in a ring network power supply system and uploading the determination result to a software system of the control end, so that the topology structure of the monitoring software is automatically updated.
8. The distribution automation remote terminal of claim 1 wherein data or information in the terminal is communicated using a two-way channel comprising a main channel and a backup channel, the backup channel being used for data or information transmission when the main channel fails to communicate.
9. The distribution automation remote terminal of claim 1,
when the distribution automation remote terminal is installed in a ring main unit with a voltage transformer PT cabinet, the data concentrator is installed on the side wall or the top of the ring main unit, and the high-speed bus is wired from a groove of the ring main unit body or the high-speed bus is wired from a wiring groove on the top of the ring main unit;
when the distribution automation remote terminal is installed in a ring main unit without a PT cabinet, the data concentrator is directly installed at the top of the corresponding outgoing line.
10. The distribution automation remote terminal of claim 1,
the length, height and width dimensions of the unit type monitoring terminal are respectively configured to be 15cm, 5cm and 10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020638577U CN202134957U (en) | 2010-12-02 | 2010-12-02 | Distribution automation remote terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020638577U CN202134957U (en) | 2010-12-02 | 2010-12-02 | Distribution automation remote terminal |
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| Publication Number | Publication Date |
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| CN202134957U true CN202134957U (en) | 2012-02-01 |
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| CN201020638577U Expired - Lifetime CN202134957U (en) | 2010-12-02 | 2010-12-02 | Distribution automation remote terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487218A (en) * | 2010-12-02 | 2012-06-06 | 北京水木源华电气有限公司 | Method for monitoring loop network cabinet and automated remote terminal for power distribution |
| CN111769445A (en) * | 2020-04-28 | 2020-10-13 | 天津平高智能电气有限公司 | A kind of ring network cabinet and ring network box |
| CN114498913A (en) * | 2021-12-03 | 2022-05-13 | 国网浙江省电力有限公司乐清市供电公司 | Distribution automation three-remote fault monitoring system and method based on image database |
-
2010
- 2010-12-02 CN CN201020638577U patent/CN202134957U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487218A (en) * | 2010-12-02 | 2012-06-06 | 北京水木源华电气有限公司 | Method for monitoring loop network cabinet and automated remote terminal for power distribution |
| CN111769445A (en) * | 2020-04-28 | 2020-10-13 | 天津平高智能电气有限公司 | A kind of ring network cabinet and ring network box |
| CN114498913A (en) * | 2021-12-03 | 2022-05-13 | 国网浙江省电力有限公司乐清市供电公司 | Distribution automation three-remote fault monitoring system and method based on image database |
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