CN209929160U - Reliable tripping device of 10KV switch equipment - Google Patents
Reliable tripping device of 10KV switch equipment Download PDFInfo
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- CN209929160U CN209929160U CN201921150313.XU CN201921150313U CN209929160U CN 209929160 U CN209929160 U CN 209929160U CN 201921150313 U CN201921150313 U CN 201921150313U CN 209929160 U CN209929160 U CN 209929160U
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Abstract
The utility model relates to a trip gear, especially a reliable trip gear of 10KV switchgear, in order to solve at present not to have one kind can damage and guarantee that the switch can reliably separate brake trip gear's problem by the on-line monitoring electro-magnet, provide a reliable trip gear of 10KV switchgear, trip gear installs in the frame of circuit breaker, next-door neighbour separating brake electro-magnet, the other reserve electro-magnet that still is provided with of separating brake electro-magnet, separating brake electro-magnet or reserve electromagnet promote trip gear and carry out the tripping operation, separating brake electro-magnet and reserve electro-magnet are connected with the control unit electricity respectively to by the control unit control action, the utility model provides high switchgear dropout's reliability.
Description
Technical Field
The utility model relates to a trip gear, especially a reliable trip gear of 10KV switchgear.
Background
With the rapid development of information technology and integrated circuits, society is brought into an intelligent era, and power grids and substations thereof are also developing towards intellectualization. The 10KV switchgear has an important role as one of the main devices in the power grid and its distribution substation, while in the 10KV switchgear, the opening electromagnet is used as an actuating element, playing an important role in ensuring reliable opening of the switch. However, the opening electromagnet of the 10KV switch equipment in the market at present has no other protection measures except simple RC protection, once the electromagnet coil is damaged or jammed, the opening action of the switch is directly affected, which may cause serious faults such as switch rejection, and at present, there is no device capable of monitoring whether the electromagnet is damaged on line and ensuring that the switch can reliably open and release.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problem that no device capable of monitoring whether an electromagnet is damaged on line and ensuring that a switch can be reliably opened and tripped exists at present, the reliable tripping device for the 10KV switch equipment is provided.
The utility model provides a technical scheme that its technical problem adopted is: a reliable tripping device of 10KV switch equipment comprises a tripping mechanism, wherein the tripping mechanism is arranged in a frame of a circuit breaker and is close to a tripping electromagnet, a standby electromagnet is also arranged beside the tripping electromagnet, the tripping mechanism is pushed by the tripping electromagnet or the standby electromagnet to execute tripping action, and the tripping electromagnet and the standby electromagnet are respectively electrically connected with a control unit and are controlled by the control unit to act;
the control unit comprises an electrical parameter measuring unit, a DI acquisition unit, a driving unit, an alarm module and an MCU module, wherein the electrical parameter measuring unit, the DI acquisition unit, the driving unit and the alarm module are connected to the MCU module in parallel, and the driving unit drives the opening electromagnet or the standby electromagnet to act;
the electric parameter measuring unit and the DI acquisition unit transmit the collected data to the MCU module, the MCU module sends a command to the driving unit after logic judgment and processing, the opening and closing electromagnet is driven to act, the MCU module acquires the switch state data sent back by the DI acquisition unit after a period of time delay, when the single switch state is not changed, the MCU module sends the command to the driving unit, the standby electromagnet is driven to act, and meanwhile the alarm module sends alarm information.
Furthermore, the electric parameter measuring unit collects the electric parameters of the brake-separating electromagnet, and the alarm module sends alarm information when the electric parameters are abnormal.
Further, when the alarm module sends out alarm information, the current waveforms of the brake electromagnet and the standby electromagnet in the action process or the current waveforms of the brake electromagnet in the action process are stored in the data storage module, and the data storage module is electrically connected with the MCU module.
Furthermore, a tripping bent plate is arranged on a tripping half shaft above the standby electromagnet, and the standby electromagnet pushes the tripping bent plate to drive the tripping half shaft to act together when acting, so that the tripping mechanism is tripped.
Further, the electrical parameter measuring unit measures current and voltage by adopting a current transformer and a voltage transformer.
Furthermore, the current transformer adopts an open CT mode, and the voltage transformer adopts a lead wire mode for measurement.
Furthermore, the DI acquisition unit switching value signal adopts the opto-coupler to carry out the isolation in the acquisition loop of the DI acquisition unit.
Furthermore, the MCU module is also electrically connected with a communication interface, and the communication interface is used for exporting data in the data storage module.
Further, the communication interface adopts a USB interface.
The utility model has the advantages that the utility model relates to a reliable tripping device of 10KV switch equipment, by collecting the current and the voltage of the main electromagnet of the opening switch and the state of the auxiliary contact of the switch, whether the main electromagnet works abnormally is judged, if the main electromagnet of the opening brake works abnormally, the MCU module sends a command to the driving unit so as to drive the standby opening brake electromagnet to act, and when the standby electromagnet acts, the standby electromagnet can push the tripping bent plate to drive the tripping half shaft to act together so as to ensure reliable opening brake, send alarm information simultaneously through alarm module, the activestandby electro-magnet current waveform of this time action process will be deposited in data storage module, and the staff can read out the abnormal information in the data storage module through communication interface when carrying out overhaul of equipments, finds out the problem place, generally speaking the utility model provides the high reliability of switchgear dropout.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a flow chart of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, the reliable tripping device for 10KV switchgear is characterized in that a tripping mechanism 1 is installed in a frame of a circuit breaker, and is close to a tripping electromagnet 2, a standby electromagnet 3 is installed beside the tripping electromagnet 2, the tripping electromagnet 2 and the standby electromagnet 3 are respectively and electrically connected with a control unit, and the control unit controls the tripping electromagnet or the standby electromagnet 3 to act.
The control unit comprises an electrical parameter measuring unit, a DI acquisition unit, a driving unit, an alarm module, an MCU module, a data storage module and a communication interface, wherein the electrical parameter measuring unit, the DI acquisition unit, the driving unit, the alarm module, the MCU module, the data storage module and the communication interface are welded on a circuit board;
the tripping mechanism 1 is arranged in the frame of the circuit breaker and is close to the opening electromagnet so as to facilitate wiring.
The electric parameter measuring unit adopts a current transformer and a voltage transformer to measure current and voltage, the current transformer adopts an open CT mode, the voltage transformer adopts a lead mode for measurement, any device and lead in an original loop do not need to be changed in the lead mode, and the open CT isolates a measuring loop from a measured loop to avoid mutual interference; the open CT is an open hall sensor.
The standby electromagnet 3 is arranged beside the opening electromagnet 2, the opening electromagnet 2 is a main electromagnet, in order that the standby electromagnet 3 can smoothly push the tripping mechanism 1 to execute tripping action, a tripping bent plate 4 is arranged on a tripping half shaft above the standby electromagnet 3, so that the standby electromagnet 3 can push the tripping bent plate 4 to drive the tripping half shaft to act together when acting, and reliable tripping of the tripping mechanism 1 is realized.
The DI acquisition unit is mainly responsible for gathering the switching value signal of corresponding auxiliary contact on circuit breaker or the cubical switchboard, has adopted the opto-coupler to keep apart in this DI acquisition unit's the collection return circuit, avoids the impact signal of preceding one-level to the interference of back one-level circuit, and DI acquisition unit is switching signal acquisition unit promptly.
The driving Unit is responsible for receiving a control command sent by the MCU module and driving the rear stage electromagnet to operate, and the driving Unit is mostly a cylinder or a motor, and the MCU module is a Micro Control Unit (MCU), which is also called a Single Chip Microcomputer or a Single Chip Microcomputer.
The alarm module provides local alarm, and sends out alarm information when the signals acquired by the DI acquisition unit are judged to have faults through the MCU module.
The data storage module is used for storing the current waveforms of the main electromagnet and the standby electromagnet in the action process when the electromagnet abnormally sends an alarm.
The communication interface is used for reading out abnormal information in the data storage module through the communication interface when a worker overhauls the equipment, and the communication interface adopts a USB interface.
The reliable tripping device of the 10KV switch equipment has the working process that:
the opening CT collects current data signals of a switch opening loop, the voltage transformer collects voltage data signals of the switch opening loop, the collected voltage and current signals are processed by filtering, amplification and the like and then are transmitted to an AD sampling port of the MCU module, the MCU module converts analog signals into digital signals through AD sampling, the DI collection unit is mainly responsible for collecting switching value signals of corresponding auxiliary contacts on a circuit breaker or a switch cabinet, the switching value signals can change after the opening mechanism is driven by the opening electromagnet 2 to open a gate successfully, if the opening electromagnet 2 fails to open the gate, the switching value signals do not change, the signals are isolated in the collection loop of the DI collection unit by adopting an optical coupler, the interference of impact signals of a previous stage on a circuit of a next stage is avoided, the collected current, voltage and switching value signals are transmitted to the MCU module in real time, and the signals are transmitted to an IO pin of the MCU module, filtering out interference signals and self switch jitter, and then carrying out further logic judgment processing.
When the switch cabinet sends the opening command locally or remotely, the MCU module obtains the switching value state of the DI acquisition unit after a period of time delay, if the switching state is not changed after a certain time delay, the work abnormality of the opening electromagnet 2 in the switch cabinet is explained, the MCU module sends the command to the driving unit, thereby driving the standby electromagnet 3 to act, the standby electromagnet 3 can push the tripping bent plate 4 to drive the tripping half shaft to act together during the action, so as to ensure the reliable opening, and meanwhile, the alarm module sends the alarm information, the current waveforms of the opening electromagnet 2 and the standby electromagnet 3 in the action process are stored in the data storage module, and the abnormal information in the data storage module can be read out through the communication interface by a worker when the equipment is overhauled.
The alarm module can send alarm information under the following condition, when the switch cabinet sends an opening command locally or remotely, the MCU module obtains the switching value state of the DI acquisition unit after a period of time delay, the switching state changes after a certain time delay, the opening electromagnet 2 works but the working electrical parameter is abnormal, the alarm module sends the alarm information, the current waveform of the opening electromagnet 2 in the action process is stored in the data storage module, and the worker can read the abnormal information in the data storage module through the communication interface when carrying out equipment maintenance.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (9)
1. The reliable tripping device for the 10KV switch equipment comprises a tripping mechanism and is characterized in that: the tripping mechanism is arranged in a frame of the circuit breaker and is close to the opening electromagnet, a standby electromagnet is also arranged beside the opening electromagnet, the opening electromagnet or the standby electromagnet pushes the tripping mechanism to execute tripping action, and the opening electromagnet and the standby electromagnet are respectively electrically connected with the control unit and are controlled to act by the control unit;
the control unit comprises an electrical parameter measuring unit, a DI acquisition unit, a driving unit, an alarm module and an MCU module, wherein the electrical parameter measuring unit, the DI acquisition unit, the driving unit and the alarm module are connected to the MCU module in parallel, and the driving unit drives the opening electromagnet or the standby electromagnet to act;
the electric parameter measuring unit and the DI acquisition unit transmit the collected data to the MCU module, the MCU module sends a command to the driving unit after logic judgment and processing, the opening and closing electromagnet is driven to act, the MCU module acquires the switch state data sent back by the DI acquisition unit after a period of time delay, when the single switch state is not changed, the MCU module sends the command to the driving unit, the standby electromagnet is driven to act, and meanwhile the alarm module sends alarm information.
2. The reliable trip device of a 10KV switchgear of claim 1, characterized in that: the electric parameter measuring unit acquires the electric parameters of the opening electromagnet, and the alarm module sends alarm information when the electric parameters are abnormal.
3. The reliable trip device of 10KV switchgear as claimed in claim 1 or 2, characterized in that: when the alarm module sends alarm information, the current waveforms of the brake electromagnet and the standby electromagnet in the action process or the current waveforms of the brake electromagnet in the action process are stored in the data storage module, and the data storage module is electrically connected with the MCU module.
4. The reliable trip device of a 10KV switchgear of claim 1, characterized in that: the spare electromagnet is provided with a tripping bent plate on the tripping half shaft, and when the spare electromagnet acts, the tripping bent plate is pushed to drive the tripping half shaft to act together, so that the tripping mechanism is tripped.
5. The reliable trip device of 10KV switchgear as claimed in claim 1 or 2, characterized in that: the electrical parameter measuring unit adopts a current transformer and a voltage transformer to measure current and voltage.
6. The reliable trip device of 10KV switchgear as claimed in claim 5, wherein: the current transformer adopts an open CT mode, and the voltage transformer adopts a lead wire mode for measurement.
7. The reliable trip device of a 10KV switchgear of claim 1, characterized in that: and the DI acquisition unit switches on and off signals are isolated by adopting an optical coupler in an acquisition loop of the DI acquisition unit.
8. The reliable trip device of a 10KV switchgear of claim 1, characterized in that: the MCU module is also electrically connected with a communication interface, and the communication interface is used for exporting data in the data storage module.
9. The reliable trip device of 10KV switchgear as claimed in claim 8, wherein: the communication interface adopts a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150313.XU CN209929160U (en) | 2019-07-18 | 2019-07-18 | Reliable tripping device of 10KV switch equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150313.XU CN209929160U (en) | 2019-07-18 | 2019-07-18 | Reliable tripping device of 10KV switch equipment |
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| CN209929160U true CN209929160U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265238A (en) * | 2019-07-18 | 2019-09-20 | 上海南华兰陵电气有限公司 | The reliable trip gear of 10KV switchgear |
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2019
- 2019-07-18 CN CN201921150313.XU patent/CN209929160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265238A (en) * | 2019-07-18 | 2019-09-20 | 上海南华兰陵电气有限公司 | The reliable trip gear of 10KV switchgear |
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