CN206040570U - A intelligent release for direct current breaker - Google Patents
A intelligent release for direct current breaker Download PDFInfo
- Publication number
- CN206040570U CN206040570U CN201620932446.2U CN201620932446U CN206040570U CN 206040570 U CN206040570 U CN 206040570U CN 201620932446 U CN201620932446 U CN 201620932446U CN 206040570 U CN206040570 U CN 206040570U
- Authority
- CN
- China
- Prior art keywords
- mcu
- electrical apparatus
- apparatus release
- circuit
- release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses an intelligent release for direct current breaker, including release, shunt, switch quantity output device and MCU, the input that the output of shunt looped through an optical coupling isolation circuit and processing circuit and MCU is connected, and the output of switch quantity output device is connected through the input of the 2nd optical coupling isolation circuit with MCU, but MCU's output loops through the 3rd optical coupling isolation circuit, electronics on -off device spare, magnetic flow converter and anti -jamming circuit is connected with the release. The utility model discloses being different from the direct current breaker release of traditional two segmentations of thermomagnetic formula protection, having functions such as measurement, protection, communication, on -line measuring, it is strong to have the anti -electromagnetic interference performance, and the precision is high, and the characteristics that local parameter was adjusted or long -range parameter is adjusted such as protection action current, voltage, time can realize communication and realize smart power grids.
Description
Technical field
This utility model is related to low-voltage direct field of circuit breakers, and specifically a kind of intelligence for dc circuit breaker is threaded off
Device.
Background technology
In direct-flow distribution system, the importance of dc circuit breaker is increasingly projected.The electrical apparatus release of traditional dc circuit breaker
Device is mainly based on electromagnetic type.The detector unit of electromagnetic release is by iron core and the electromagnetic force produced by coil and ferrum
The size of core spring force matches the protection to realize electric current, and it has volume greatly, and low precision and chopper temperature rise cause spring force
The shortcomings of decay of value.
With the continuous expansion of intelligent power network system scale and grade, traditional electrical apparatus release is increasingly difficult to meet system
Reliability, accuracy and real-time requirement.Traditional DC chopper constitutes overload protection, electromagnetism using Thermomagnetic type release
Quick release used as short-circuit protection, thread off and constitute long delay, wink dynamic two sections of characteristics, is difficult to realize defencive function integration by heat.
The core detection of dc circuit breaker and control unit electrical apparatus release, in Power Electronic Technique, microelectric technique, calculating
Under this overall situation that machine technology and communication technology are developed rapidly, the traditional electromagnetic release of dc circuit breaker cannot meet
Need.Therefore design and a kind of to be a need for based on monolithic processor controlled intelligent electrical apparatus release.
Utility model content
The purpose of this utility model is to provide a kind of intelligent electrical apparatus release for dc circuit breaker, by microelectric technique and meter
Calculation machine technology introduces dc circuit breaker makes which have certain automatic identification, control and execution to the change for running working condition
Ability.
The technical solution of the utility model is as follows：
A kind of intelligent electrical apparatus release for dc circuit breaker, include electrical apparatus release, diverter, output switch parameter device and
MCU, it is characterised in that：The outfan of the diverter pass sequentially through the first optical coupling isolation circuit and signal processing circuit with it is described
The input of MCU is connected, and the outfan of the output switch parameter device is defeated with the MCU by the second optical coupling isolation circuit
Enter end to be connected, the outfan of the MCU passes sequentially through the 3rd optical coupling isolation circuit, electronics can switching device, magnetic flow convertor
It is connected with anti-jamming circuit with the electrical apparatus release.
The described intelligent electrical apparatus release for dc circuit breaker, it is characterised in that：Described MCU adopts model
The processor of dsPIC30F4011.
The described intelligent electrical apparatus release for dc circuit breaker, it is characterised in that：Described promising its of MCU connections provides work
Make the power module of power supply.
The described intelligent electrical apparatus release for dc circuit breaker, it is characterised in that：The outfan of the MCU is connected with state
Display lamp.
The described intelligent electrical apparatus release for dc circuit breaker, it is characterised in that：Described MCU is connected with external computer
Or the communication interface with other intelligent breaker networkings.
The described intelligent electrical apparatus release for dc circuit breaker, it is characterised in that：Described MCU is connected with code switch rotation
Button.
The beneficial effects of the utility model：
This utility model is different from the dc circuit breaker electrical apparatus release of traditional Thermomagnetic type two-part protection, with measurement, protection,
The functions such as communication, on-line checking, high precision strong with electromagnetism interference performance, protection act electric current, voltage, time etc. are local
The characteristics of parameter tuning or remote parameter are adjusted, is capable of achieving communication and realizes intelligent grid.
Description of the drawings
Fig. 1 is this utility model structural principle block diagram.
Specific embodiment
Referring to Fig. 1, a kind of intelligent electrical apparatus release for dc circuit breaker, electrical apparatus release, diverter, output switch parameter is included
Device and MCU, the outfan of diverter pass sequentially through the input phase of the first optical coupling isolation circuit and signal processing circuit and MCU
Connection, the outfan of output switch parameter device are connected with the input of MCU by the second optical coupling isolation circuit, the output of MCU
End pass sequentially through the 3rd optical coupling isolation circuit, electronics can switching device, magnetic flow convertor and anti-jamming circuit be connected with electrical apparatus release
Connect.
In this utility model, processors of the MCU using model dsPIC30F4011；Promising its of MCU connections provides work
The power module of power supply；The outfan of MCU is connected with status indicator lamp；MCU is connected with external computer or intelligently disconnected with other
The communication interface of road device networking；MCU is connected with code switch knob.
This utility model is further described below in conjunction with accompanying drawing：
Current signal needed for electrical apparatus release is provided by diverter, and diverter is obtained by measuring the voltage of self-resistance both sides
Direct current flow, is transported to MCU through the first optical coupling isolation circuit and signal processing circuit and is processed and produced a dropout
Pulse, automatically selects and sends instantaneous signal, time delayed signal or alarm signal, and the 3rd optical coupling isolation circuits of Jing control electronics can
Switching device, then by controlling magnetic flow convertor output to anti-jamming circuit, drives electrical apparatus release to make which through anti-jamming circuit
Thread off, and send fault message to status indicator lamp, which kind of state differentiation is；Show as electrical apparatus release refreshes, autodiagnosis will be carried out
Disconnected and ambient temperature is detected.
Output switch parameter device connects, and carries out light-coupled isolation for switch amount signal.Communication interface adopts standard interface
RS-485, can be connected on CAN interface circuit by transducer, be networked with computer or other intelligent breakers, realize mutual
Between information transfer.
Power module provides power supply for whole device, and input is for the interference from surge, and connects surge absorber,
It is exactly Transient Voltage Suppressor；Power line is using the passive filter intercepted interference signal outside device.
Toggle switch knob is set to the setting valve of electric current and time, is tested and is checked.Various error protections it is dynamic
Make time and electric current to set through toggle switch knob and be stored in the EEPROM of MCU（Power down is not lost）In, which will detect
Current signal is compared with setting valve, judges whether to thread off.
Under severe electromagnetic environment, the interference rejection ability of electrical apparatus release determines that can dc circuit breaker normal to a certain extent
Work and its accuracy of action and reliability, strong interference can affect monitoring system out of control, cause execution sequence disorderly, have
When even send the signal of mistake, cause chopper malfunction.The Anti-Jamming Technique for being combined using software and hardware in the design,
Using power filter technology, shield technology, isolation technology, grounding technology etc. on hardware；Using digital filtering technique, soft on software
The technologies such as part trap, do-nothing instruction, WATCHDOG, the technology that software and hardware combines ensure that electrical apparatus release is reliable, accurately close a point direct current
Chopper.
The shell encapsulation of whole device is formed using metal material encapsulation, and firm in structure, resistant to mechanical damage ability is strong, conductive
Performance is good, can guarantee that the overall conducting continuity of device and sealing, also with good electromagnetic shielding action.
Claims (6)
1. a kind of intelligent electrical apparatus release for dc circuit breaker, includes electrical apparatus release, diverter, output switch parameter device and MCU,
It is characterized in that：The outfan of the diverter passes sequentially through the first optical coupling isolation circuit and signal processing circuit with the MCU
Input be connected, the outfan of the output switch parameter device passes through the input of the second optical coupling isolation circuit and the MCU
End is connected, the outfan of the MCU pass sequentially through the 3rd optical coupling isolation circuit, electronics can switching device, magnetic flow convertor and
Anti-jamming circuit is connected with the electrical apparatus release.
2. the intelligent electrical apparatus release for dc circuit breaker according to claim 1, it is characterised in that：Described MCU is adopted
The processor of model dsPIC30F4011.
3. the intelligent electrical apparatus release for dc circuit breaker according to claim 1, it is characterised in that：Described MCU connections
The power module of promising its offer working power.
4. the intelligent electrical apparatus release for dc circuit breaker according to claim 1, it is characterised in that：The output of the MCU
End is connected with status indicator lamp.
5. the intelligent electrical apparatus release for dc circuit breaker according to claim 1, it is characterised in that：Described MCU connections
There are external computer or the communication interface with other intelligent breaker networkings.
6. the intelligent electrical apparatus release for dc circuit breaker according to claim 1, it is characterised in that：Described MCU connections
There is code switch knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932446.2U CN206040570U (en) | 2016-08-24 | 2016-08-24 | A intelligent release for direct current breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932446.2U CN206040570U (en) | 2016-08-24 | 2016-08-24 | A intelligent release for direct current breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040570U true CN206040570U (en) | 2017-03-22 |
Family
ID=58304957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620932446.2U Active CN206040570U (en) | 2016-08-24 | 2016-08-24 | A intelligent release for direct current breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850219A (en) * | 2019-11-28 | 2020-02-28 | 珠海格力电器股份有限公司 | Fault detection circuit, fault detection method and freezing and refrigerating equipment |
-
2016
- 2016-08-24 CN CN201620932446.2U patent/CN206040570U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850219A (en) * | 2019-11-28 | 2020-02-28 | 珠海格力电器股份有限公司 | Fault detection circuit, fault detection method and freezing and refrigerating equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103779965A (en) | Integrated high-voltage AC circuit-breaker controller | |
| CN204156226U (en) | A kind of smart jack | |
| WO2023116650A1 (en) | Intelligent testing system and method for safety parameters of mine explosion-proof electrical apparatus | |
| CN103457355A (en) | Measurement-protection integrated low-voltage intelligent switch | |
| CN208689459U (en) | A kind of automatic Temperature and Humidity Control protection data acquisition device of high-tension switch cabinet | |
| CN108512202A (en) | A kind of breaker adapting to smart power grid user end and its guard method | |
| CN105116270A (en) | Mutual inductor fault detection method for merging unit and protection control device | |
| CN206040570U (en) | A intelligent release for direct current breaker | |
| CN202159971U (en) | Intelligent protection device of direct current breaker | |
| CN203339659U (en) | Single-phase electric leakage protection and power supply automation recovery device | |
| CN105098993A (en) | Network message analysis and fault recording system of intelligent substation | |
| CN202870258U (en) | Online electric abrasion detecting system of vacuum circuit breaker | |
| CN204067890U (en) | Change low-pressure line-outgoing control cubicle for two yuan | |
| CN203787934U (en) | Multifunctional fireproof short-circuit protector equipped with redundant device | |
| CN208522454U (en) | A kind of breaker adapting to smart power grid user end | |
| CN206134621U (en) | Direct current breaker based on hall sensor | |
| CN203466121U (en) | Large current output intelligence control device used for electromagnetic thrust actuating mechanism | |
| CN202602263U (en) | Microcomputer-type power transmission temporary protection device | |
| CN102944329B (en) | Temperature measurement system and temperature measurement method for low-voltage intelligent capacitor | |
| CN103746331A (en) | Multifunctional fireproof short-circuit protector with redundant device | |
| CN209389700U (en) | Trip(ping) circuit outside the extra-high voltage direct-current of optimization | |
| CN111580012A (en) | Dry-type air-core reactor fault online monitoring method and device | |
| CN206074791U (en) | A kind of faulty action preventing circuit and the normal station low-voltage protection device using the circuit | |
| CN203104092U (en) | Alternating current-direct current dual-input signal-output power distribution system having interlocking and switching functions | |
| CN203826917U (en) | Intelligent type tripper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |