CN101055814B - High voltage vacuum breaker - Google Patents
High voltage vacuum breaker Download PDFInfo
- Publication number
- CN101055814B CN101055814B CN200710067263A CN200710067263A CN101055814B CN 101055814 B CN101055814 B CN 101055814B CN 200710067263 A CN200710067263 A CN 200710067263A CN 200710067263 A CN200710067263 A CN 200710067263A CN 101055814 B CN101055814 B CN 101055814B
- Authority
- CN
- China
- Prior art keywords
- digital relay
- module
- breaker
- mutual inductor
- current mutual
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
A high-voltage vacuum breaker is used for operation or exit of an electrical apparatus in an electrical power system; the high-voltage vacuum breaker comprises a control panel, a control chamber, an arc-estinguishing chamber, an entrance insulative bushing, a digital relay, an electronic current mutual inductor, an outlet insulative bushing,; the electronic current mutual inductor is provided in the entrance or the outlet insulative bushing and connected with the digital relay; the digital relay is composed of a filtering and amplitude adjusting module, an A/D converting module, a CPU processing module, a liquid crystal display module, and a switch quantity input and output module, and is connected with an operation mechanism of the breaker by the switch quantity input and output module. Compared the invention with a current technic, the volume is not increased, measurement, protection and diagnoses functions in an electrical power line are organically integrated, added functions perform real-time on-line monitoring on a work state, a loop control state, and a coil opening/closing state of the breaker, thereby realizing intelligentized independent operation of the breaker.
Description
Technical field
The present invention relates to the electric switch technical field, especially relate to the vacuum switch that has working state signal detection and relaying protection function.
Background technology
In electric power system, circuit breaker is widely used as power distribution equipment, at present at a large amount of high-pressure vacuum breakers that use, generally comprise the main body that has vacuum interrupter, the contact arm of outsourcing insulating sleeve, and control room three parts that are provided with control circuit board and operating mechanism, breaker operation mechanism is done and is closed a floodgate or the separating brake action, to the electric equipment power supply or the disconnection that connect with it; This high-pressure vacuum breaker does not detect and the relaying protection function because of there being working state signal, when abnormal states such as overload, ground connection, short circuit, three-phase current, Voltage unbalance occurring when system, can not picked up signal, in time give the alarm and trip, thereby can not independent operating, must mix electric current, voltage transformer and protective relaying device and form switch cubicle, make it to have relaying protection function ability operate as normal; Because the current transformer that adopts on the switch cubicle is traditional electromagnetic current transducer at present, its volume is big, and power consumption is big, temperature rise, and the cost height needs to install separately; The rated current that this current transformer of while provides is 5 amperes or 1 ampere, and microcomputer based relay protective device can only be handled 5 volts voltage, so must in protective device, increase the little instrument transformer of one-level, the current signal of 5 amperes or 1 ampere is converted to 5 volts voltage signal, therefore increased the volume of protective relaying device; Development along with electronic technology, high magnetic conduction soft magnetic material technology; small size core-theaded type current transformer; that is electronic current mutual inductor is used in electric power system and has been become possibility; though but present electronic current mutual inductor has many advantages such as volume is little, low in energy consumption, precision is high, temperature rise is low; low just because of its output voltage and power output---output voltage is 225mV; power output is 0.02w; can not directly dock, need the digital relay of new system with the microcomputer based relay protective device of routine.
Summary of the invention
The objective of the invention is deficiency, a kind of high-pressure vacuum breaker with working state signal detection and relaying protection function is provided, make it neither to increase the volume of original high-pressure vacuum breaker at above-mentioned prior art, again can independent operating.
For achieving the above object, technical scheme of the present invention is such: a kind of high-pressure vacuum breaker comprises control panel, control room, arc control device, inlet wire insulating sleeve, digital relay, electronic current mutual inductor, outlet insulating sleeve; Wherein digital relay is installed on the control panel or in the control room, wiring is all finished in the control room; Said electronic current mutual inductor is set in inlet wire insulating sleeve or the outlet insulating sleeve, by electronic current mutual inductor high voltage, big electric current is directly changed into the ac voltage signal that rated voltage is 225mV, is input to digital relay; This digital relay is made up of the filtering that is connected in turn and amplitude conditioning module, A/D modular converter, CPU processing module, LCD MODULE and the switching value input, the output module that are connected with the CPU processing module, and digital relay is connected with the operating mechanism of circuit breaker by switching value input, output module; The voltage signal that inputs to digital relay is after filtering, amplitude conditioning; convert digital quantity to by the A/D modular converter; transport to the CPU processing module; calculating and logic determines by the CPU processing module; outputing to LCD MODULE shows; simultaneously the overcurrent according to whether is selected the protection tripping operation or returns to rejudge.
A kind of high-pressure vacuum breaker of the present invention; owing to adopted the digital relay of new system; can successfully use the small electronic current mutual inductor of volume; make the present invention compare with the high-pressure vacuum breaker of prior art; volume does not increase; again the measurement in the power circuit, protection, diagnostic function organically are integrated; the function that increases newly is carried out in good time in-service monitoring to operating state, control loop state and branch, the closing coil state of circuit breaker, realizes the intelligent independent operating of circuit breaker.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is an operation principle block diagram of the present invention.
Among the figure: 1, control panel, 2, the control room, 3, arc control device, 4, the inlet wire insulating sleeve, 5, digital relay, 6, electronic current mutual inductor, 7, the outlet insulating sleeve.
Embodiment
Embodiment 1
By Fig. 1--shown in Figure 3, a kind of high-pressure vacuum breaker of the present invention comprises control panel 1, control room 2, arc control device 3, inlet wire insulating sleeve 4, digital relay 5, electronic current mutual inductor 6, outlet insulating sleeve 7; Wherein digital relay 5 is installed on the control panel 1, and wiring is all finished in the control room; Said electronic current mutual inductor 6 is set in the outlet insulating sleeve 7, by electronic current mutual inductor high voltage, big electric current is directly changed into the ac voltage signal that rated voltage is 225mV, is input to digital relay; This digital relay is made up of the filtering that is connected in turn and amplitude conditioning module, A/D modular converter, CPU processing module, LCD MODULE and the switching value input, the output module that are connected with the CPU processing module, and digital relay is connected with the operating mechanism of circuit breaker by switching value input, output module; The voltage signal that inputs to digital relay is after filtering, amplitude conditioning; convert digital quantity to by the A/D modular converter; transport to the CPU processing module; calculating and logic determines by the CPU processing module; outputing to LCD MODULE shows; simultaneously the overcurrent according to whether is selected the protection tripping operation or returns to rejudge.
Embodiment 2
In embodiment 1, said electronic current mutual inductor 6 is set in the outlet insulating sleeve 7, be set in the inlet wire insulating sleeve 4 instead, all the other repeat embodiment 1.
Embodiment 3
In embodiment 1, said digital relay 5 is installed in to change on the control panel 1 is installed in the control room 2, all the other repeat embodiment 1.
Claims (1)
1. a high-pressure vacuum breaker comprises control panel (1), control room (2), arc control device (3), inlet wire insulating sleeve (4), digital relay (5), electronic current mutual inductor (6), outlet insulating sleeve (7); Wherein digital relay (5) be installed in that control panel (1) is gone up or control room (2) in, wiring is all finished in the control room, it is characterized in that: said electronic current mutual inductor (6) is set in inlet wire insulating sleeve (4) or the outlet insulating sleeve (7), and electronic current mutual inductor connects digital relay; This digital relay is made up of the filtering that is connected in turn and amplitude conditioning module, A/D modular converter, CPU processing module, LCD MODULE and the switching value input, the output module that are connected with the CPU processing module, and digital relay is connected with the operating mechanism of circuit breaker by switching value input, output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710067263A CN101055814B (en) | 2007-02-14 | 2007-02-14 | High voltage vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710067263A CN101055814B (en) | 2007-02-14 | 2007-02-14 | High voltage vacuum breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055814A CN101055814A (en) | 2007-10-17 |
| CN101055814B true CN101055814B (en) | 2010-05-26 |
Family
ID=38795573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710067263A Expired - Fee Related CN101055814B (en) | 2007-02-14 | 2007-02-14 | High voltage vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101055814B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034642A (en) * | 2010-12-29 | 2011-04-27 | 常州森源力拓开关有限公司 | Intelligent vacuum circuit breaker |
| CN102169776B (en) * | 2011-04-20 | 2013-02-13 | 东南大学 | Medium-voltage integrated intelligent circuit breaker |
| CN102522261B (en) * | 2011-12-31 | 2015-06-10 | 北京赛德高科铁道电气科技有限责任公司 | Soft-switching controller for vacuum circuit breaker |
| CN104242257A (en) * | 2013-06-20 | 2014-12-24 | 沈阳工业大学 | Method and device for realizing synergic protection of units of ring main unit |
| CN103560496A (en) * | 2013-11-08 | 2014-02-05 | 宁夏天地经纬电力设备工程有限公司 | Control system of intelligent circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293912Y (en) * | 1996-12-19 | 1998-10-07 | 淄博市博山电器开关厂 | Self-controlling vacuum breaker |
| CN2588634Y (en) * | 2002-11-20 | 2003-11-26 | 沙万乾 | Intelligent electricity distribution cabinet |
| CN2699551Y (en) * | 2004-03-18 | 2005-05-11 | 深圳市惠程电气股份有限公司 | Fully-sealed vacuum circuit breaker switch cabinet |
-
2007
- 2007-02-14 CN CN200710067263A patent/CN101055814B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293912Y (en) * | 1996-12-19 | 1998-10-07 | 淄博市博山电器开关厂 | Self-controlling vacuum breaker |
| CN2588634Y (en) * | 2002-11-20 | 2003-11-26 | 沙万乾 | Intelligent electricity distribution cabinet |
| CN2699551Y (en) * | 2004-03-18 | 2005-05-11 | 深圳市惠程电气股份有限公司 | Fully-sealed vacuum circuit breaker switch cabinet |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-311761A 2006.11.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101055814A (en) | 2007-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI230491B (en) | Control system for canceling load unbalance of three-phase circuit | |
| CN101055814B (en) | High voltage vacuum breaker | |
| CN101728819B (en) | Intelligent switch and control method thereof | |
| CN201146370Y (en) | Apparatus for reducing excitation inrush current of rectifier transformer | |
| CN107785217A (en) | A kind of Intelligent electronic optical pole breaker of plastic casing | |
| CN202259066U (en) | Multipolar/monopolar low-voltage intelligent circuit breaker | |
| CN212784893U (en) | Remote charge control automatic closing relay and system | |
| CN102779612A (en) | Pre-magnetizing device for main power supply transformer of electric power circuit | |
| CN109450101A (en) | A kind of control device for low-pressure plastic shell circuit breaker | |
| CN102693884B (en) | Special molded case circuit breaker for prepayment electric energy meter | |
| CN202103400U (en) | Electronic release for intelligent MCCB | |
| CN209134143U (en) | A kind of control device for low-pressure plastic shell circuit breaker | |
| CN111443281B (en) | Electrical blocking device and circuit breaker or isolating switch | |
| CN2881932Y (en) | Permanent magnetic mechanism controller for vacuum circuit breaker with integral protection function | |
| CN202513106U (en) | Dedicated molded case circuit breaker for prepayment type electric energy meter | |
| CN115411836A (en) | Power supply device and electric energy meter box | |
| CN102437520B (en) | Control circuit board of power distribution cabinet | |
| CN207425710U (en) | A kind of pre-payment high-pressure vacuum breaker | |
| CN207731877U (en) | Single-phase intelligent bus driver magnet remaining AC contactor | |
| CN201584672U (en) | Novel power distribution and transformation device | |
| CN201616406U (en) | Miniature leakage alarming and non-operating circuit breaker | |
| CN110231562A (en) | A kind of breaker operating characteristic experimental provision and method | |
| CN216929301U (en) | Block terminal is synthesized to integral type low pressure | |
| CN218274487U (en) | Metering type small-sized automatic reclosing circuit breaker | |
| CN209593096U (en) | A kind of safety circuit for distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20150214 |
|
| EXPY | Termination of patent right or utility model |