CN214153453U - Ring main unit - Google Patents
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- CN214153453U CN214153453U CN202022395023.0U CN202022395023U CN214153453U CN 214153453 U CN214153453 U CN 214153453U CN 202022395023 U CN202022395023 U CN 202022395023U CN 214153453 U CN214153453 U CN 214153453U
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- breaker
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Abstract
The utility model discloses a ring main unit, include: the master control reclosing circuit breaker and each slave control reclosing circuit breaker are connected to different power lines, the master control reclosing circuit breaker is connected with an external control terminal through a dry contact circuit, and is connected with each slave control reclosing circuit breaker; when the master control reclosing circuit breaker or at least one slave control reclosing circuit breaker has a fault, the master control reclosing circuit breaker is conducted through a control dry contact circuit, an alarm signal is sent to an external control terminal, and the external control terminal sends the alarm signal so as to inform maintenance personnel to maintain, so that the on-line monitoring of the running state of the ring main unit is realized, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to an electric power tech field, concretely relates to looped netowrk cabinet.
Background
The looped netowrk cabinet is that a set of high tension switchgear adorns at steel sheet metal cabinet internal or make the electrical equipment of assembling compartment formula looped netowrk power supply unit, its core part adopts load switch and fuse, have simple structure, small, the low price, can improve advantages such as power supply parameter and performance and power supply safety, and must set up power failure protection device in the looped netowrk cabinet, with effectively preventing the person to electrocute and fire incident, the circuit breaker is as the electronic components that circuit failure protection device is essential, wide application in each field of electronic circuit. Since the circuit fault protection device itself may have a fault, for example, when the service life of the internal components is over or the circuit breaker is open, the circuit fault protection function is lost, in this case, if the device is continuously used, a person may get an electric shock or a fire accident. Therefore, whether the circuit breaker in the ring main unit has a fault needs to be detected in real time, but the existing detection circuit needs to provide a detection signal manually and cannot be diagnosed automatically, so that the current operation state of the circuit breaker cannot be reflected in time.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the self-checking circuit of the circuit breaker among the prior art among the looped netowrk cabinet can not in time reflect its current running state to provide one kind and looped netowrk cabinet.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the embodiment of the utility model provides a ring main unit, include: the main control reclosing circuit breaker and each slave control reclosing circuit breaker are connected to different power lines, and the main control reclosing circuit breaker is connected with an external control terminal through the main contact circuit and is connected with each slave control reclosing circuit breaker; when the master control reclosing circuit breaker fails or is powered off or at least one slave control reclosing circuit breaker fails or is powered off, the master control reclosing circuit breaker is conducted through a control dry contact circuit, an alarm signal is sent to an external control terminal, and the external control terminal sends the alarm signal.
In one embodiment, a dry contact circuit includes: the control circuit is respectively connected with the main control reclosing circuit breaker and the relay circuit and is used for controlling the relay circuit to be conducted according to the received control signal; and the relay circuit is connected with the external control terminal and used for sending out an alarm signal when the relay circuit is conducted.
In one embodiment, the control circuit includes: the circuit comprises a first diode, a second diode, a first resistor, a second resistor, a third resistor, a first switch tube and a second switch tube, wherein the cathodes of the first diode and the second diode are connected with the control end of the first switch tube through the first resistor, and the first resistor is connected with the grounding end through the second resistor; anodes of the first diode and the second diode are connected with the master control reclosing circuit breaker; the first end of the first switch tube is connected with the control end of the second switch tube and is connected with an external power supply through a third resistor, and the second end of the first switch tube is connected with the grounding end; the first end of the second switch tube is connected with the relay circuit, and the second end of the second switch tube is connected with the grounding end.
In one embodiment, a relay circuit includes: and the first end of the relay is connected with an external power supply through the fourth resistor, the second end of the relay is connected with the first end of the second switching tube, and the third end and the fourth end of the relay are connected with external control terminals.
In an embodiment, each reclosure breaker is connected with one communication module, each communication module is used for realizing data transmission between the master control reclosure breaker and each slave control reclosure breaker, and the communication modules adopt bluetooth communication.
In one embodiment, a master reclosing circuit breaker includes: the polling module is used for acquiring the on-off state of the polling module, acquiring the on-off state of all slave control reclosing circuit breakers by adopting a polling mode with first preset time as a time interval, judging whether the polling module is in an opening state or not or whether at least one slave control reclosing circuit breaker is in an opening state or not, and transmitting an alarm signal to an external control terminal by controlling the conduction of a main contact circuit when the polling module is in the opening state or at least one slave control reclosing circuit breaker is in the opening state, and the external control terminal transmits the alarm signal.
In an embodiment, the polling module is further configured to acquire the on-off states of all slave control reclosure breakers by using a polling method with a first preset time as a time interval, and determine whether the on-off states of all slave control reclosure breakers are successfully acquired, when the on-off state of at least one slave control reclosure breaker is not successfully acquired, determine that a communication module of the slave control reclosure breaker has a fault, switch on a circuit through a control dry contact, send an alarm signal to an external control terminal, and send the alarm signal to the external control terminal.
In an embodiment, each reclosure breaker shell is provided with its own Mac address and its corresponding two-dimensional code, and an operation and maintenance person establishes communication connection between the master control reclosure breaker and the slave control reclosure breaker in a mode that the operation and maintenance person scans the two-dimensional codes through the control terminal.
In one embodiment, each reclosing circuit breaker is provided with a toggle switch, and an operation and maintenance person locks or unlocks the automatic reclosing function of the reclosing circuit breaker by controlling the state of the toggle switch.
In one embodiment, a reclosing circuit breaker includes: the control module is used for switching off the reclosing circuit breaker when a power line has a fault, switching on the reclosing circuit breaker after second preset time, switching off the reclosing circuit breaker again after judging that the reclosing circuit breaker is in a switching-on state, self-locking and no switching on; recording the switching-on times of the reclosing circuit breaker in the third preset time, judging whether the recorded reclosing times exceed the preset reclosing times or not in the third preset time, when the recorded reclosing times exceed the preset reclosing times, self-locking and no switching-on, and when the recorded reclosing times do not exceed the preset reclosing times, resetting the recorded reclosing times by the control module.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a ring main unit, master control reclosing circuit breaker passes through the dry contact circuit and is connected with control terminal, master control reclosing circuit breaker adopts the mode of polling, use first time of predetermineeing as time interval, inquire every state from the control reclosing circuit breaker, when master control reclosing circuit breaker trouble or at least one follow control reclosing circuit breaker trouble, master control reclosing circuit breaker will pass through the dry contact circuit, send alarm signal to external control terminal, external control terminal sends alarm signal, so that inform maintainer to maintain, thereby realized the on-line monitoring to the running state of ring main unit, reduce cost of maintenance.
2. The ring main unit provided by the utility model is provided with the toggle switch, so that the reclosing function of the reclosing circuit breaker can be locked and unlocked, the problem that the circuit breaker needs to be manually closed after tripping due to accidental faults in the ring main unit is solved, and manpower and material resources can be saved; the built-in control module of every reclosing circuit breaker carries out fault diagnosis to reclosing circuit breaker, when it broke down, starts the auto-lock mechanism to prevent to cause the phenomenon of power line damage because of the circuit breaker trouble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a composition diagram of a specific example of a ring main unit according to an embodiment of the present invention;
fig. 2 is a block diagram of another specific example of the ring main unit according to the embodiment of the present invention;
fig. 3 is a specific circuit structure of a dry contact circuit according to an embodiment of the present invention;
fig. 4 is a block diagram of another specific example of the ring main unit according to the embodiment of the present invention;
fig. 5 is a block diagram of another specific example of the ring main unit according to the embodiment of the present invention;
fig. 6 is a composition diagram of another specific example of the ring main unit according to the embodiment of the present invention;
fig. 7 is a block diagram of another specific example of the ring main unit according to the 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, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The embodiment of the utility model provides a looped netowrk cabinet is applied to the occasion that needs carry out real-time supervision to the reclosing lock circuit breaker in the looped netowrk cabinet, and fig. 1 is the reclosing lock circuit breaker scheme based on the scene is used to the looped netowrk cabinet, promptly the embodiment of the utility model provides a then only carry out fault detection to the looped netowrk cabinet of having installed reclosing lock circuit breaker, so the utility model discloses the looped netowrk cabinet not only includes: the main control reclosing circuit comprises a dry contact circuit 1, a main control reclosing circuit breaker 2 and a plurality of auxiliary control reclosing circuit breakers 3, and further comprises other devices, and the description is omitted.
The utility model discloses master control reclosing circuit breaker 2 and every connect in the power line of difference from control reclosing circuit breaker 3, as shown in fig. 1, master control reclosing circuit breaker 2 is connected with external control terminal through dry contact point circuit 1 to be connected from control reclosing circuit breaker 3 with every.
In electric power system, the looped netowrk is the ring power distribution network, and the main line that supplies power forms a closed ring promptly, and power supply supplies power to this ring main line, and from the main line again all the way through the outside distribution of high tension switchgear, and whether break down and satisfy the demand of being convenient for to maintain for real time monitoring power line, the embodiment of the utility model provides a set up a plurality of reclosing circuit breakers in the looped netowrk cabinet, and in numerous reclosing circuit breaker, select a master control reclosing circuit breaker 2, not by selected reclosing circuit breaker for following control reclosing circuit breaker 3, be connected every from control reclosing circuit breaker 3 with master control reclosing circuit breaker 2 to be connected master control reclosing circuit breaker 2 through dry contact circuit 1 and external control terminal.
The embodiment of the utility model provides an in, master control reclosing circuit breaker 2 is with the mode of polling, use first time interval of predetermineeing, the every running state (separating brake state or combined floodgate state) from control reclosing circuit breaker 3 of cycle inquiry in proper order, when master control reclosing circuit breaker 2 or at least one follow control reclosing circuit breaker 3 trouble (master control reclosing circuit breaker 2 is separating brake state or at least one follow control reclosing circuit breaker 3 is separating brake state), master control reclosing circuit breaker 2 switches on through control dry contact circuit 1, send alarm signal to external control terminal, external control terminal sends alarm signal.
Furthermore, the embodiment of the utility model provides an in, when master control reclosing circuit breaker or at least one follow control reclosing outage, dry contact circuit 1 switches on, and external control terminal sends alarm signal equally.
The utility model discloses control terminal can constitute by built-in alarm module's intelligent terminal, and after intelligent terminal and main control reclosing circuit breaker put through, alarm module reported to the police, and intelligent terminal can be connected with communication terminal, and this communication terminal can make fortune dimension personnel carry out fortune dimension management to the looped netowrk cabinet with modes such as cell-phone APP.
The embodiment of the utility model provides a looped netowrk cabinet, master control reclosing circuit breaker passes through the dry contact circuit and is connected with control terminal, master control reclosing circuit breaker adopts the mode of polling, use first time of predetermineeing as time interval, every state from control reclosing circuit breaker of inquiry, when master control reclosing circuit breaker trouble or at least one follow control reclosing circuit breaker trouble, master control reclosing circuit breaker will pass through the dry contact circuit, send alarm signal to external control terminal, external control terminal sends alarm signal, so that inform maintainer to maintain, thereby realized the on-line monitoring to the running state of looped netowrk cabinet, reduce cost of maintenance.
In one embodiment, as shown in fig. 2, the dry contact circuit 1 includes: a control circuit 11 and a relay circuit 12.
As shown in fig. 2, the control circuit 11 of the embodiment of the present invention is respectively connected to the master reclosing circuit breaker and relay circuit 12, and is configured to control the relay circuit 12 to be turned on according to the received control signal; and the relay circuit 12 is connected with the external control terminal and used for sending out an alarm signal when the relay circuit is conducted.
The utility model discloses dry contact circuit 1 is in the master control reclosing circuit breaker 2 and when the follow accuse reclosing circuit breaker 3 all is not in the separating brake state (or master control reclosing circuit breaker 2 and when the follow accuse reclosing circuit breaker 3 all is not outage), control circuit 11 drive relay circuit 12, make dry contact circuit 1 be in the off-state (relay circuit is in the off-state promptly), when master control reclosing circuit breaker 2 or at least one follow accuse reclosing circuit breaker 3 are in the separating brake state, master control reclosing circuit breaker 2 output control signal to control circuit 11, control relay circuit 12 switches on, afterwards, master control reclosing circuit breaker 2 is connected with external control terminal, external control terminal sends alarm signal.
In one embodiment, the control circuit 11 shown in fig. 3 includes: the circuit comprises a first diode D5, a second diode D6, a first resistor R12, a second resistor R13, a third resistor R11, a first switch tube Q2 and a second switch tube Q1.
As shown in fig. 3, the cathodes of the first diode D5 and the second diode D6 are both connected to the control terminal of the first switch Q2 through a first resistor R12, and the first resistor R12 is connected to the ground terminal through a second resistor R13; anodes of the first diode D5 and the second diode D6 are connected with the master reclosing circuit breaker 2; a first end of the first switch tube Q2 is connected with a control end of the second switch tube Q1, and is connected with an external power supply through a third resistor R11, and a second end of the first switch tube Q2 is connected with a ground end; the second switching tube Q1 has a first end connected to the relay circuit 12 and a second end connected to the ground.
When the master control reclosing circuit breaker 2 is in an opening state, the master control reclosing circuit breaker 2 sends a control signal to the control circuit 11 through the MCU-6 end shown in the figure 3, at the moment, the first switch tube Q2 is conducted, the second switch tube Q1 is turned off, the relay circuit is powered off, and the dry contact circuit is conducted; when at least one slave control reclosing circuit breaker 3 is in an opening or power-off state, the master control reclosing circuit breaker 2 sends a control signal to the control circuit 11 through a BLE-6 end in fig. 3, at the moment, the first switch tube Q2 is switched on, the second switch tube Q1 is switched off, the relay circuit is powered off, and the dry contact circuit is switched on.
When the main control reclosing circuit breaker 2 is in a breaking state, namely the branch where the circuit breaker is located loses power, the switching tubes Q2 and Q1 are both turned off, the relay circuit loses power, and the dry contact circuit is turned on.
In one embodiment, the relay circuit 12 shown in fig. 3 includes: fourth resistor R1 and relay U2.
As shown in fig. 3, a first end of the relay U2 is connected to an external power source through a fourth resistor R1, a second end of the relay U2 is connected to a first end of a second switch Q1, and a third end and a fourth end of the relay U2 are both connected to an external control terminal.
The utility model discloses relay circuit 12's wiring end P4 is connected with external control terminal, and after second switch tube Q1 in control circuit 11 turned off, relay U2 lost the electricity, and the dry contact circuit switches on, and master control reclosing circuit breaker 2 is connected with external control terminal, and external control terminal sends alarm signal.
In a specific embodiment, as shown in fig. 4, the embodiment of the utility model provides an in with master control reclosing circuit breaker 2 and all from control reclosing circuit breaker 3 all be connected with corresponding communication module 4, this communication module 4 can adopt the bluetooth communication. The master control reclosing circuit breaker 2 communicates with other slave control reclosing circuit breakers 3 through a communication module 4 connected with the master control reclosing circuit breaker 2 and a communication module 4 connected with other slave control reclosing circuit breakers 3, a polling mode is adopted, whether each slave control reclosing circuit breaker 3 is in a switching-off state or not is sequentially inquired by taking first preset time as a time interval, and when the master control reclosing circuit breaker 2 or at least one slave control reclosing circuit breaker 3 is in the switching-off state, a control signal is sent to the dry contact circuit 1.
In an embodiment, as shown in fig. 5, the master reclosing breaker 2 includes: the polling module 21 is configured to acquire on-off states of the slave control reclosing circuit breakers 3, and acquire the on-off states of all the slave control reclosing circuit breakers 3 in a polling manner by taking a first preset time as a time interval, and determine whether or not the slave control reclosing circuit breakers 3 are in an opening state or at least one of the slave control reclosing circuit breakers 3 is in an opening state, when the slave control reclosing circuit breakers 3 are in the opening state or at least one of the slave control reclosing circuit breakers 3 is in the opening state, the alarm signal is sent to an external control terminal by controlling the connection point circuit 1 to be conducted, and the external control terminal sends the alarm signal.
The embodiment of the utility model provides a polling module 21 of master control reclosing circuit breaker 2 uses first time of predetermineeing as time interval, whether other follow control reclosing circuit breaker 3 of cycle inquiry is in the separating brake state in proper order, when it is in the separating brake state, switches on through control dry contact point circuit 1, sends alarm signal to external control terminal, and external control terminal sends alarm signal. In addition, when the master control reclosing circuit breaker 2 is in the opening state, the external control terminal also sends out an alarm signal.
The utility model discloses polling module 21 still is used for using first preset time as time interval, adopt the mode of polling to acquire all on-off states from accuse reclosing circuit breaker 3, and judge whether successfully acquire all on-off states from accuse reclosing circuit breaker 3, when at least one on-off state from accuse reclosing circuit breaker 3 is not successfully acquired, judge this 4 troubles of communication module from accuse reclosing circuit breaker 3, and switch on through control dry contact point circuit 1, send alarm signal to external control terminal, external control terminal sends alarm signal.
The embodiment of the utility model provides an in, when master control reclosing circuit breaker 2 and other follow accuse reclosing circuit breaker 3 when carrying out the communication through communication module 4, polling module 21 when the on-off state of accuse reclosing circuit breaker 3 is followed in the inquiry, if polling module 21 did not successfully acquire this on-off state from accuse reclosing circuit breaker 3, then and switch on through control dry contact point circuit 1, send alarm signal to external control terminal, external control terminal sends alarm signal.
In an embodiment, as shown in fig. 6, the reclosing circuit breaker includes: the control module 22 is used for switching off the reclosing circuit breaker when a fault occurs in the power line, switching on the reclosing circuit breaker after second preset time, and switching off the reclosing circuit breaker again after judging that the reclosing circuit breaker is in a switching-on state, self-locking is carried out, and switching on is not carried out; recording the switching-on times of the reclosing circuit breaker within a third preset time, and judging whether the recorded reclosing times exceed the preset reclosing times within the third preset time, if so, self-locking and no switching-on is carried out, and if not, the control module 22 resets the recorded reclosing times.
The embodiment of the utility model provides an in every reclosing circuit breaker (including master control reclosing circuit breaker 2 and from control reclosing circuit breaker 3) in all set up control module 22, because the utility model discloses the circuit breaker is the reclosing circuit breaker, consequently, when the power line trouble that it connects, reclosing circuit breaker separating brake to close a floodgate after the second preset time, if this reclosing circuit breaker separating brake once more after closing a floodgate again, then this reclosing circuit breaker's control module 22 carries out the self-locking, no longer closes a floodgate.
In addition, the control module 22 is further configured to record the number of times of reclosing the circuit breaker in a third preset time, and when the number of times of reclosing recorded by the control module 22 exceeds the preset number of times of reclosing in the third preset time, the circuit breaker is self-locked and is not closed again, and when the number of times of reclosing is not exceeded, the control module 22 resets the recorded number of times of reclosing.
It should be noted that the control method, the query method, the determination method, and the like related to the control module 22 and the polling module 21 are mature control methods, query methods, and determination methods in the prior art, and are not described herein again.
In a specific embodiment, the embodiment of the utility model provides an all print its respective Mac address and its two-dimensional code that corresponds on every reclosing circuit breaker's shell, when main control reclosing circuit breaker 2 and other follow accuse reclosing circuit breaker 3 do not establish communication connection, fortune dimension personnel pass through the mode of control terminal scanning two-dimensional code, establish main control reclosing circuit breaker 2 and follow the communication connection between the accuse reclosing circuit breaker 3.
In an embodiment, as shown in fig. 7, each reclosure breaker is provided with a toggle switch 5, and an operation and maintenance person locks or unlocks an automatic reclosure function of the reclosure breaker by controlling a state of the toggle switch 5.
The embodiment of the utility model provides a all set up toggle switch 5 in every reclosing circuit breaker, this fluctuation switch control reclosing circuit breaker has the reclosing function, when toggle switch 5 dials the reclosing state, then reclosing circuit breaker has the reclosing function; if the toggle switch 5 is toggled to a non-reclosing state, the reclosing circuit breaker closes the reclosing function, if the reclosing circuit breaker is self-locked by the control module 22 in the interior of the reclosing circuit breaker, the toggle switch 5 can be toggled to the reclosing state from the non-reclosing state, the reclosing circuit breaker is unlocked, and the reclosing circuit breaker has the reclosing function.
The utility model provides a ring main unit, the master control reclosing circuit breaker passes through the dry contact circuit and is connected with control terminal, the master control reclosing circuit breaker adopts the polling mode, use first predetermined time as time interval, inquire every from the state of accuse reclosing circuit breaker, when master control reclosing circuit breaker trouble or at least one from accuse reclosing circuit breaker trouble, master control reclosing circuit breaker will pass through the dry contact circuit, send alarm signal to external control terminal, external control terminal sends alarm signal, in order to inform maintainer to maintain, thereby realized the on-line monitoring to the running state of ring main unit, reduce cost of maintenance; the reclosing function of the reclosing circuit breaker is locked and unlocked by arranging the toggle switch, the problem that manual closing is needed after the circuit breaker in the ring main unit trips due to accidental faults is solved, and manpower and material resources can be saved; the built-in control module of every reclosing circuit breaker carries out fault diagnosis to reclosing circuit breaker, when it broke down, starts the auto-lock mechanism to prevent to cause the phenomenon of power line damage because of the circuit breaker trouble.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (7)
1. A ring main unit, comprising: a dry contact circuit, a master reclosing circuit breaker and a plurality of slave reclosing circuit breakers, wherein,
the master control reclosing circuit breaker and each slave control reclosing circuit breaker are connected to different power lines, the master control reclosing circuit breaker is connected with an external control terminal through a dry contact circuit, and is connected with each slave control reclosing circuit breaker;
when the master control reclosing circuit breaker fails or is powered off or at least one slave control reclosing circuit breaker fails or is powered off, the master control reclosing circuit breaker is conducted through a control dry contact circuit, an alarm signal is sent to an external control terminal, and the external control terminal sends the alarm signal.
2. The ring main unit as claimed in claim 1, wherein the dry contact circuit comprises: a control circuit and a relay circuit, wherein,
the control circuit is respectively connected with the master control reclosing circuit breaker and the relay circuit and is used for controlling the relay circuit to be conducted according to the received control signal;
and the relay circuit is connected with the external control terminal and used for sending out an alarm signal when the relay circuit is conducted.
3. The ring main unit as claimed in claim 2, wherein the control circuit comprises: a first diode, a second diode, a first resistor, a second resistor, a third resistor, a first switch tube and a second switch tube,
cathodes of the first diode and the second diode are connected with a control end of the first switch tube through a first resistor, and the first resistor is connected with a grounding end through a second resistor; anodes of the first diode and the second diode are connected with the master control reclosing circuit breaker;
the first end of the first switch tube is connected with the control end of the second switch tube and is connected with an external power supply through a third resistor, and the second end of the first switch tube is connected with the grounding end;
the first end of the second switch tube is connected with the relay circuit, and the second end of the second switch tube is connected with the grounding end.
4. The ring main unit as claimed in claim 3, wherein the relay circuit comprises: a fourth resistor and a relay, wherein,
the first end of the relay is connected with an external power supply through a fourth resistor, the second end of the relay is connected with the first end of the second switch tube, and the third end and the fourth end of the relay are connected with an external control terminal.
5. The ring main unit as claimed in claim 4, wherein each reclosure breaker is connected to a communication module, each communication module is used for data transmission between the master reclosure breaker and each slave reclosure breaker, and the communication modules communicate with each other via Bluetooth.
6. The ring main unit as claimed in claim 5, wherein each reclosure breaker shell is provided with its own Mac address and its corresponding two-dimensional code, and the operation and maintenance personnel establishes communication connection between the master control reclosure breaker and the slave control reclosure breaker by scanning the two-dimensional code through the control terminal.
7. The ring main unit as claimed in claim 4, wherein each reclosure breaker is provided with a toggle switch, and an operation and maintenance person locks or unlocks an automatic reclosure function of the reclosure breaker by controlling a state of the toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395023.0U CN214153453U (en) | 2020-10-23 | 2020-10-23 | Ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395023.0U CN214153453U (en) | 2020-10-23 | 2020-10-23 | Ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214153453U true CN214153453U (en) | 2021-09-07 |
Family
ID=77559986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022395023.0U Active CN214153453U (en) | 2020-10-23 | 2020-10-23 | Ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214153453U (en) |
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2020
- 2020-10-23 CN CN202022395023.0U patent/CN214153453U/en active Active
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