CN212483779U - Moulded case circuit breaker device - Google Patents
Moulded case circuit breaker device Download PDFInfo
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- CN212483779U CN212483779U CN202020551199.8U CN202020551199U CN212483779U CN 212483779 U CN212483779 U CN 212483779U CN 202020551199 U CN202020551199 U CN 202020551199U CN 212483779 U CN212483779 U CN 212483779U
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Abstract
A molded case circuit breaker device comprises a controller, wherein the controller is connected with a metering acquisition module, a transformer area identification module, a broadband carrier module, a current detection circuit and a release execution circuit; obtaining a node network topological structure of the current distribution area through information obtained by the distribution area identification module and the broadband carrier module, and simultaneously collecting electric quantity information of the metering and collecting module to form line loss analysis of the current distribution area; the molded case circuit breaker equipment adopts an integrated design, and each circuit part is reasonable in design, so that the volume of the circuit breaker equipment is greatly reduced, and the circuit breaker equipment is very convenient to install; the situations of messy installation lines, wire flying and wire breaking during installation are avoided, and potential safety hazards are eliminated; the grading line loss analysis and prejudgment of the whole medium and low voltage transformer area are realized, and the real-time performance, the integrity, the full data and the like of data acquisition are ensured.
Description
The technical field is as follows:
the utility model belongs to the technical field of the electric power and specifically relates to a moulded case circuit breaker device.
Background art:
the molded case circuit breaker is a common electrical appliance device, and can automatically cut off current after the current exceeds a trip setting, so that the circuit is protected. Currently, residual current operated circuit breakers have some problems:
(1) the existing molded case circuit breaker is inconvenient to install, switch equipment needs to be installed on each middle-low voltage side box body node according to the requirement of the electric appliance installation specification of the low-voltage distribution network side, the molded case circuit breaker equipment is installed in a small space in a box body, due to the fact that the installation position and the space are limited, the installation line is messy under the condition that the installation line is not reserved, the conditions of wire flying and wire breaking exist, and serious potential safety hazards are buried in the whole middle-low voltage station area nodes.
(2) The conventional molded case circuit breaker has a single function, only has a circuit breaker attribute function, and does not have a function of analyzing line loss of a power line.
In recent years, with the increasing year by year of power load and the deep development of 'four-to-one service' in rural areas, the line loss and the electric quantity of a medium-low voltage power grid become larger and larger, and how to effectively reduce the electric quantity loss of the medium-low voltage power grid is one of the key breakthrough openings for realizing energy conservation, emission reduction and environmental protection of power supply enterprises.
Under the condition that the conventional molded case circuit breaker cannot meet the line loss analysis; if a line loss analysis device is additionally installed, the line loss analysis device and the line loss analysis device are installed at the same time, the matching degree is poor, the integration level is low, the cost is high, the maintenance is inconvenient, and the efficiency of the whole system is reduced.
(3) Even if the existing line loss analysis device is integrated into a conventional circuit breaker, the existing line loss analysis device has many disadvantages: the real-time performance of data obtained by the existing line loss analysis device is not high, particularly when the interference of a transformer area is serious or the load of a transformer is heavy, the communication efficiency of equipment is low, the stability of the acquired data is poor, and the existing electricity utilization information acquisition system has the defects of single acquired data, poor timeliness and incapability of ensuring the integrity of the data; the line loss is not analyzed accurately, which node is the meter box or the user meter to be solved cannot be checked accurately, and due to the lack of a specific detection link, the real content of the line loss problem cannot be determined accurately.
The utility model has the following contents:
the utility model provides a moulded case circuit breaker device has solved the problem that exists among the prior art.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a molded case circuit breaker device comprises a controller, wherein the controller is connected with a metering acquisition module, a transformer area identification module, a broadband carrier module, a current detection circuit and a release execution circuit;
the station area identification module is used for identifying a node network topological structure of the current station area;
the broadband carrier module is used for broadband carrier communication among the current station area devices;
the current detection circuit is used for detecting fault current, converting a current signal into a voltage signal and sending the voltage signal to the controller;
the tripper execution circuit is used for controlling the opening and closing state of the tripper structural member according to the instruction of the microprocessor or manual control action;
the metering and collecting module comprises a clock unit, a metering unit, an LED indicating unit, an HPLC carrier communication unit, an RS485 communication unit and a power supply unit;
the clock unit, the metering unit, the LED indicating unit, the HPLC carrier communication unit and the RS485 communication unit are all connected with the controller, and the power supply unit supplies power to the metering and collecting module;
the clock unit is used for providing working clock frequency for the controller;
the metering unit is used for collecting line loss data and summarizing the data to the controller;
the LED indicating unit is used for indicating the running state;
the HPLC carrier communication unit is used for data communication transmission between nodes by accessing a broadband communication signal;
the RS485 communication unit is used for carrying out data interaction with peripheral equipment;
the controller obtains the voltage information of the current detection circuit and sends an instruction to the tripping execution circuit according to the voltage information so as to control the opening and closing of the tripper; obtaining a node network topological structure of the current distribution area through information obtained by the distribution area identification module and the broadband carrier module, and simultaneously collecting electric quantity information of the metering and collecting module to form line loss analysis of the current distribution area;
the metering unit comprises a group of mutual inductors and is used for obtaining current data of a current line.
The station area identification module comprises a current pulse circuit, and the current pulse circuit is used for transmitting transient pulse current.
The utility model adopts the above design scheme, have following advantage:
(1) the molded case circuit breaker equipment adopts an integrated design, and each circuit part is reasonable in design, so that the volume of the circuit breaker equipment is greatly reduced, and the circuit breaker equipment is very convenient to install; the situations of messy installation lines, wire flying and wire breaking during installation are avoided, and potential safety hazards are eliminated;
(2) the circuit breaker attribute function and the line loss analysis function of the equipment are combined together, and when the power is configured, a line loss analysis device does not need to be additionally installed, so that the integration level is high, the cost is reduced, the configuration time of a power line is shortened, the configuration efficiency of the power line is improved, and meanwhile, the maintenance cost is also reduced;
(3) the line loss analysis function integrated in the molded case circuit breaker is ingenious in design, and all link nodes in the medium and low voltage transformer area are collected and subjected to edge data calculation processing, so that the processing timeliness of data and events is improved; through data acquisition of each node of a power distribution cabinet, a branch cabinet, a meter box and the like, the line loss is analyzed in a grading manner, each broken line loss analysis and prejudgment problem point in a middle-low voltage transformer area is realized, the grading line loss analysis and prejudgment of the whole middle-low voltage transformer area are realized, and the real-time performance, the integrity, the full data and the like of data acquisition are guaranteed.
Description of the drawings:
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic circuit diagram of the metering unit of the present invention.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-2, a molded case circuit breaker apparatus includes a controller connected to a metering acquisition module, a station area identification module, a broadband carrier module, a current detection circuit, and a trip execution circuit;
the station area identification module is used for identifying a node network topological structure of the current station area;
the broadband carrier module is used for broadband carrier communication among the current station area devices;
the current detection circuit is used for detecting fault current, converting a current signal into a voltage signal and sending the voltage signal to the controller;
the tripper execution circuit is used for controlling the opening and closing state of the tripper structural member according to the instruction of the microprocessor or manual control action;
the metering and collecting module comprises a clock unit, a metering unit, an LED indicating unit, an HPLC carrier communication unit, an RS485 communication unit and a power supply unit;
the clock unit, the metering unit, the LED indicating unit, the HPLC carrier communication unit and the RS485 communication unit are all connected with the controller, and the power supply unit supplies power to the metering and collecting module;
the clock unit is used for providing working clock frequency for the controller;
the metering unit is used for collecting line loss data and summarizing the data to the controller;
the LED indicating unit is used for indicating the running state;
the HPLC carrier communication unit is used for data communication transmission between nodes by accessing a broadband communication signal;
the RS485 communication unit is used for carrying out data interaction with peripheral equipment;
the controller obtains the voltage information of the current detection circuit and sends an instruction to the tripping execution circuit according to the voltage information so as to control the opening and closing of the tripper; obtaining a node network topological structure of the current distribution area through information obtained by the distribution area identification module and the broadband carrier module, and simultaneously collecting electric quantity information of the metering and collecting module to form line loss analysis of the current distribution area;
the metering unit comprises a group of mutual inductors and is used for obtaining current data of a current line.
The station area identification module comprises a current pulse circuit, and the current pulse circuit is used for transmitting transient pulse current.
The molded case circuit breaker is arranged at each node in the power distribution cabinet, the branch cabinet and the meter box, when the molded case circuit breaker works, the molded case circuit breaker acquires current data through the current detection circuit, when the circuit is short-circuited or seriously overloaded, the current detection circuit detects fault current, and the controller sends a signal to the release execution circuit after receiving a fault current signal of the current detection circuit, so as to control the release circuit to execute the action of the release mechanism and break the circuit.
Line loss analysis method based on device for realizing internet of things perception of molded case circuit breaker
(1) And (3) identifying a node network topological structure:
A. installing a breaker: plastic shell circuit breakers are arranged in the power distribution cabinet, the branch cabinet and the meter box;
B. the main node sends an instruction: a current pulse circuit of a molded case circuit breaker V arranged on a W main node of a power distribution cabinet sends a broadcasting station area identification instruction of a station area where the current pulse circuit is located through a switch outgoing line side of the power distribution cabinet, wherein the identification instruction comprises ID number information and phase information of a power distribution terminal;
C. receiving instructions from the node: after all the molded case circuit breakers of the slave nodes at different levels under the power distribution cabinet W receive the identification instruction information in the step B, automatically storing the ID number information and the phase information in the identification instruction;
D. registering from the node: c, the molded case circuit breaker of the slave node sends registration information through a broadband carrier communication circuit of the slave node, wherein the registration information comprises the ID number information and the phase information in the step C;
E. polling from the node: c, the molded case circuit breaker V inquires the received registration information in the step D, compares ID number information and phase information in the registration information, if the ID number information and the phase information are consistent with the identification information in the step B, the slave node belongs to the current station area, and if the ID number information and the phase information are different, the slave node does not belong to the current station area and is deleted;
F. and (3) reporting by the slave node: d, a molded case circuit breaker V of the main node reports the network-accessed slave node subjected to the step E to the main station to obtain the information of the user change relationship;
G. selecting a molded case circuit breaker X arranged in the meter box, generating a branch identification signal on one phase of electricity by the molded case circuit breaker X, receiving the branch identification signal by all molded case circuit breakers under the branch line, and acquiring branch information of the molded case circuit breaker X by a power distribution terminal through collecting the branch information of the molded case circuit breaker acquiring the branch identification signal;
H. step G is sequentially carried out on the molded case circuit breakers arranged in the meter box, branch information of all the molded case circuit breakers in the meter box is obtained, and the power distribution terminal reports all the branch information to the master station to obtain the branch information;
I. the master station collects the acquired user variable relation information and the acquired branch information to obtain a complete network topology structure;
(2) line loss analysis
J. According to the network topology structure obtained in the step (1), acquiring the electric quantity X of each branch cabinet by a metering acquisition module of a molded case circuit breaker arranged at each branch cabinet node, sending electric quantity information to the molded case circuit breaker arranged in a station area general table by an HPLC carrier communication unit, acquiring the electric quantity S of the station area general table by the metering acquisition module of the molded case circuit breaker arranged in the station area general table, and obtaining the line loss C1 between the station area general table and the top branch by a controller as S-X1-X2 … -Xn;
the acquisition of the electric quantity information is acquired by a metering acquisition module, and a metering unit in the metering acquisition module comprises a group of mutual inductors and is used for acquiring current data of a current line, so that the electric quantity information is calculated.
K. According to the network topology structure obtained in the step (1), acquiring the electric quantity Y of each meter box by a metering acquisition module of a molded case circuit breaker arranged at each meter box node, sending electric quantity information to the molded case circuit breaker arranged in a branch cabinet by an HPLC carrier communication unit, acquiring the electric quantity of the branch cabinet as X by the metering acquisition module of the molded case circuit breaker arranged in the branch cabinet, and obtaining the line loss C2 from the branch cabinet to the meter box as X-Y1-Y2 … -Yn by a controller;
according to the network topology structure obtained in the step (1), acquiring electric quantity W of each user electric meter node by a metering acquisition module of a molded case circuit breaker arranged at each user electric meter node, sending electric quantity information to the molded case circuit breaker arranged in a meter box by an HPLC carrier communication unit, acquiring the electric quantity of the meter box as Z by the metering acquisition module of the molded case circuit breaker arranged in the meter box, and obtaining the line loss C3 of the meter box as W1-W2 … -Wn by a controller;
m, summarizing line loss information of the station area by a controller of the molded case circuit breaker arranged in the station area summary table to obtain the total loss of C-C1 + C2+ C3;
G. the controller of the molded case circuit breaker arranged in the station area summary table judges the fault reason by analyzing C, C1, C2 and C3 loss data; and judging a fault point by analyzing the electric quantity data of all nodes in the local area.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (3)
1. A molded case circuit breaker apparatus, characterized in that: the intelligent power distribution system comprises a controller, wherein the controller is connected with a metering acquisition module, a distribution room identification module, a broadband carrier module, a current detection circuit and a release execution circuit;
the station area identification module is used for identifying a node network topological structure of the current station area;
the broadband carrier module is used for broadband carrier communication among the current station area devices;
the current detection circuit is used for detecting fault current, converting a current signal into a voltage signal and sending the voltage signal to the controller;
the tripper execution circuit is used for controlling the opening and closing state of the tripper structural member according to the instruction of the microprocessor or manual control action;
the metering and collecting module comprises a clock unit, a metering unit, an LED indicating unit, an HPLC carrier communication unit, an RS485 communication unit and a power supply unit;
the clock unit, the metering unit, the LED indicating unit, the HPLC carrier communication unit and the RS485 communication unit are all connected with the controller, and the power supply unit supplies power to the metering and collecting module;
the clock unit is used for providing working clock frequency for the controller;
the metering unit is used for collecting line loss data and summarizing the data to the controller;
the LED indicating unit is used for indicating the running state;
the HPLC carrier communication unit is used for data communication transmission between nodes by accessing a broadband communication signal;
the RS485 communication unit is used for carrying out data interaction with peripheral equipment;
the controller obtains the voltage information of the current detection circuit and sends an instruction to the tripping execution circuit according to the voltage information so as to control the opening and closing of the tripper; and acquiring the node network topological structure of the current distribution area through the information acquired by the distribution area identification module and the broadband carrier module, and acquiring the electric quantity information of the metering acquisition module to form the line loss analysis of the current distribution area.
2. A molded case circuit breaker apparatus according to claim 1, wherein: the metering unit comprises a group of mutual inductors and is used for obtaining current data of a current line.
3. A molded case circuit breaker apparatus according to claim 1, wherein: the station area identification module comprises a current pulse circuit, and the current pulse circuit is used for transmitting transient pulse current.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551199.8U CN212483779U (en) | 2020-04-14 | 2020-04-14 | Moulded case circuit breaker device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551199.8U CN212483779U (en) | 2020-04-14 | 2020-04-14 | Moulded case circuit breaker device |
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| CN212483779U true CN212483779U (en) | 2021-02-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111352028A (en) * | 2020-04-14 | 2020-06-30 | 山东德源电力科技股份有限公司 | Molded case circuit breaker and line loss analysis method |
| CN113410104A (en) * | 2021-05-14 | 2021-09-17 | 国网河北省电力有限公司邯郸供电分公司 | Cloud wisdom breaker based on HPLC |
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2020
- 2020-04-14 CN CN202020551199.8U patent/CN212483779U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111352028A (en) * | 2020-04-14 | 2020-06-30 | 山东德源电力科技股份有限公司 | Molded case circuit breaker and line loss analysis method |
| CN111352028B (en) * | 2020-04-14 | 2024-07-26 | 山东德源电力科技股份有限公司 | Molded case circuit breaker and line loss analysis method |
| CN113410104A (en) * | 2021-05-14 | 2021-09-17 | 国网河北省电力有限公司邯郸供电分公司 | Cloud wisdom breaker based on HPLC |
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