CN102723674A - Switch box special for load control system - Google Patents
Switch box special for load control system Download PDFInfo
- Publication number
- CN102723674A CN102723674A CN2012102244919A CN201210224491A CN102723674A CN 102723674 A CN102723674 A CN 102723674A CN 2012102244919 A CN2012102244919 A CN 2012102244919A CN 201210224491 A CN201210224491 A CN 201210224491A CN 102723674 A CN102723674 A CN 102723674A
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- CN
- China
- Prior art keywords
- switch
- load control
- control system
- box
- contactor
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000013642 negative control Substances 0.000 claims description 17
- 239000004593 Epoxy Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Patch Boards (AREA)
Abstract
The invention discloses a switch box special for a load control system. The switch box comprises a switch box, a load control terminal and an alternating current (AC) contactor, wherein the load control terminal and the AC contactor are mounted in the switch box. The AC contactor comprises a switching on/off coil, two pairs of auxiliary contacts and a secondary control loop and is made from semi-hard magnetic steel. According to the switch box special for the load control system, due to the AC contactor, the reliability of power supply for users is ensured.
Description
[technical field]
The present invention relates to a kind of load control system special switch case, realize taking control and power control function under the subscriber's drop A.C. contactor operating mode.
[background technology]
It is the important process that present electric power system is transformed that ordered electric work is changed to becoming more meticulous by extensive style, and wherein an important process is exactly to carry out the transition to load management terminal control by original power cuts to limit consumption.Since 2007; The user of big consumption (more than 50kVA) has installed negative control terminal gradually; But low capacity (such as early stage 50-315kVA) user has only the high voltage fuse protection; Low pressure does not have switch, and owing to there is not to control the switch of tripping operation, can't realize the expense control and the power control function of negative control.This user also exists in a large number, if require each subscriber's drop side all to install time master switch additional, then can produce a large amount of expenses.So; Hope to design subscriber's drop equipment is carried out appropriate reconstruction,, improve the electricity charge rate of recovery and the electric ratio of forward purchasing so that can realize expense control and power control function with the lower cost of 3000-5000 unit; Effectively the control user is ultra holds operation, and the work of power-assisted ordered electric.
[summary of the invention]
Technical scheme to be solved by this invention is to provide that a cost is lower, the load control system special switch case of dependable performance, realizes take under the subscriber's drop A.C. contactor operating mode controlling and the power control function.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of load control system special switch case; It comprises switch-box and is contained in negative control terminal, the A.C. contactor in the switch-box; A.C. contactor comprises divide-shut brake coil, the two pairs of auxiliary contact and secondary control loop, and A.C. contactor adopts the semihard magnet steel.
Further improvement of the present invention, switch-box divide two Room up and down, and negative control terminal is installed in chamber on the casing, and A.C. contactor is installed in down the chamber, middle with the 4mm epoxy plate insert and with about the chamber separate.
Further improvement of the present invention, external door mode in switch-box adopts, the inside door seal locks so that its unlatching is controlled by electric company, and external door is opened and is then controlled by the user.
Further improvement of the present invention, inside door is provided with perforate in corresponding upper chamber portion, checks for the user.
Further improvement of the present invention, the inside door bottom is equipped with the contactor switch knob, makes things convenient for the user to recover voluntarily to send.
Further improvement of the present invention, the screw of inside door two ends configuration perforate is used to install seal.
Further improvement of the present invention, switch-box shell are the cold fore-telling plate of 1.5mm, surface plastic spraying, and the back of switch-box is provided with link plate, and link plate is provided with installing hole.
Further improvement of the present invention, the outside of switch-box is provided with earthing device, and louvre is opened in both sides, the close silk screen of interior weldering.
Further improvement of the present invention, the inside bottom of switch-box add and are lined with the 1.5mm insulation board, with anticreep.
Further improvement of the present invention, the bottom surface cable of switch-box advances wire hole.
Compared with prior art, A.C. contactor of the present invention has guaranteed that the user reliably supplies power.
[embodiment]
Below in conjunction with specific embodiment the present invention is described further.
The special-purpose case of load Comprehensive Control of the present invention has been realized with lower cost subscriber's drop equipment being carried out appropriate reconstruction; Sealing is realized in the divide-shut brake loop; Prevent artificial destruction; So that can realize expense control and power control function, the raising electricity charge rate of recovery and the electric ratio of forward purchasing are effectively controlled the user and are moved ultra the appearance.To introduce the structure of the operation principle of this special use case below in detail.
At first introduce operation principle.Power load control system is made up of load control centre, control terminal, communication system, control switch.Load control centre is the station that each loaded termination is kept watch on and controlled, and claims master station again.Control terminal is to be contained in user side, the supervision of the control centre that loaded and the equipment of control.The terminal is made up of main control unit, display unit, radio station, modem module, input-output unit and Switching Power Supply.
Next introduce the basic functional principle at load control system terminal.After the terminal system energized, get into electrification reset and program initialization operation automatically, in service first, central station will send a series of operational factor and give the terminal.Subsequently, work can strictly under the control of program be carried out by parameter without any confusion in the terminal.When central station sends signal to the terminal, receive through terminal antenna, be demodulated into the low frequency fsk signal to modem module by the radio station, modulatedemodulate accesses data-signal and is sent to main control unit then.The intercepting of main control unit application program is analyzed and is discerned from asynchronous communication interface forward one frame data, carries out various operations according to the different commands code.The order that central station is sent generally is divided into two big types: one type is all terminals of issuing in the zone, is called and broadcasts order; Another kind of is to issue selected terminal, is the single-point order.Data necessary is gathered according to order in the terminal, is sent to modem module system by Asynchronous Serial Interface, signal is sent out to central station through antenna by the radio station at last.
The umber of pulse that the parameter that give according to central station at the terminal, pulse meter transmit calculates active power, reactive power, meritorious electric weight, capacity of idle power, requirement; Analog quantity through voltage, current transducer are seen off calculates voltage and current; Through the switching signal that controlled auxiliary contact is seen off, " branch " of sense switch, " closing " state.The terminal begins monitor user ' power after receiving orders such as power control period, power definite value and power control input.If when preload overshoot value and being in the power control period; Then will send the sound and light alarm signal; During accumulative total alarm times overshoot value (being generally per minute 10 times); First round tripping operation is carried out at the terminal automatically, reports to the police then every separated stipulated time if still be in power, carries out the tripping operation of subsequent passes successively.When load is lower than definite value, then eliminate and report to the police.The current power control period, relevant power control tripping operation indicator light was extinguished at the terminal automatically, allows the user to close a floodgate when finishing.
After receiving " power control releasing " or " allowing to close a floodgate " order, also can remove out-of-limit tripped condition.When being in the electric energy control state, month electric weight or day electric weight surpass 80% o'clock of electric weight definite value, and alarm signal is sent at the terminal.When actual electric weight surpassed definite value, the terminal was just advanced switch to the master and is tripped.After " power control releasing " or " allowing to close a floodgate " order is received at the terminal, or arrived a day end, the end of month, then removed relevant electric weight automatically and get over state.Central station can directly be given an order, and the remote control trip operation is carried out at the terminal, and after central station sent permission, then the user carried out closing operation.
Introduce the special-purpose switch-box of load control system down below.This switch-box is serially connected in user's electric power incoming line side, divides two kinds of indoor type and outdoor types, and all requirement can realize sealing (A.C. contactor and negative control terminal are installed in the switch-box).The outdoor type switch-box can be rainproof, dustproof.Can be fixedly mounted on the electric pole, possess anti-theft feature.Access way has two kinds: for inlet wire the user of switch cubicle is arranged, but because the switch trip equipment fault is refused to repair, can insert bearing control switch cubicle serial connection mode; Do not have the user of switch cubicle for inlet wire, can directly go into to insert at the inlet wire side joint bearing the control switch cubicle.
Switch-box mainly is made up of three parts: switch-box, negative control terminal, A.C. contactor.Main body is a switch-box, in can negative control terminal and A.C. contactor being included in, realizes sealing, guarantee tripping operation after, the user can't close a floodgate voluntarily when recovering to send electric condition satisfying.Satisfy the user simultaneously and can check the related data on the negative control terminal.Negative control terminal is a matured product, meets the correlation technique requirement, can directly select for use.A.C. contactor: it is good that this equipment performance will possess arc extinction performance, can realize self-sustaining after the breaker tripping and closing, and the divide-shut brake coil remove to be accomplished in the process of divide-shut brake charged, and all the other times are not charged, and reaching energy-conservation, contact does not have shake; Two pairs of auxiliary contact can be provided, deciliter situation of reflection contactor.Auxiliary equipment: cable turnover line protection tube and switch-box fixed support, and secondary control loop.
Common A.C. contactor iron core uses silicon steel sheet, and contactor is prone to shake, causes loose contact, and the long-term charged easy burn-out of magnet exciting coil influences the electricity consumption reliability.Therefore changed into by former silicon steel sheet and use the semihard magnet steel, under DC excitation, exciting current is broken off in the contactor adhesive, and iron core still remains on the attracted position because of remanent magnetism; When with reverse direct current or AC demagnetization, contactor discharges; Contactor is at adhesive obstructed exciting current in service, thus the purpose that reaches energy-conservation, noiseless, do not burn magnet exciting coil.Contactor needs the reverse current degaussing just to discharge, and has guaranteed the user in the process that the high-tension line dead electricity restores electricity again, can automatic recovery of power supply, need not manual operation, and guaranteed that the user reliably supplies power.
Switch-box will be realized sealing, intends and adopts interior external door mode, and external door is opened by the user and controlled, and inside door is opened and controlled by electric company.Inside door adopts seal to lock.The perforate of inside door top can be satisfied user inquiring and bear functions such as the dump energy of control device, power, load curve.The contactor switch knob is installed in the inside door bottom, makes things convenient for the user under the situation that satisfies the combined floodgate condition, recovers voluntarily to send.The screw of inside door two ends configuration perforate is used to install seal, guarantees the inside door sealing, and the stranger must not open, and has guaranteed that negative control device, contactor, secondary line all seal, and other people can't operate and destroy.
The negative control of outdoor type case shell is the cold fore-telling plate of 1.5mm, surface plastic spraying, suspension rain proof type.Link plate is welded at the casing back up and down, opens installing hole on the link plate.Earthing device should be arranged, and should there be reliable earth point in the casing outside.Louvre is left in the casing both sides, the close silk screen of interior weldering.Casing divides two Room up and down, and negative control device is contained in casing top, and contactor, auxiliary relay, button etc. are contained in the bottom, and the centre separates with the 4mm epoxy plate, and epoxy plate can be extracted out from slot, makes things convenient for wiring and maintenance.Two-door inside and outside being provided with, negative control operating surface plate hole is opened on inside door top, and the contactor button hole is opened in the bottom.Outer doorjamb installs sealing joint strip additional, and outer door lock adopts the door lock of common rain proof type, and Inner door lock adopts PUSH-508 type (band triangular key) and can seal up.Spray word on the negative control case external door: " the special-purpose control cabinet of negative control ", have electricity dangerous, forbid to seal off " warning mark and Unified National Service Phone: 95598.
The indoor components and parts of contactor bottom needs cushioning 1.5mm insulation board, in case the components and parts electric leakage.Contactor turnover line mode is to go out under advancing under the cable, from contactor turnover line end copper bar is caused into and out of the line hole to be connected with cable, and the line hole is long waist type, copper bar cover thermal shrinkable sleeve, and support is fixed.The secondary line cabling is capable to be fixed in trough or with take-up strap, and neatly standard is attractive in appearance for cabling.
Claims (10)
1. load control system special switch case; It comprises switch-box and is contained in negative control terminal, the A.C. contactor in the switch-box; It is characterized in that: A.C. contactor comprises divide-shut brake coil, the two pairs of auxiliary contact and secondary control loop, and A.C. contactor adopts the semihard magnet steel.
2. load control system special switch case as claimed in claim 1 is characterized in that: switch-box divides two Room up and down, and negative control terminal is installed in chamber on the casing, and A.C. contactor is installed in down the chamber, middle with the 4mm epoxy plate insert and with about the chamber separate.
3. load control system special switch case as claimed in claim 2 is characterized in that: external door mode in switch-box adopts, and the inside door seal locks so that its unlatching is controlled by electric company, and external door is opened and is then controlled by the user.
4. load control system special switch case as claimed in claim 3, it is characterized in that: inside door is provided with perforate in corresponding upper chamber portion, checks for the user.
5. load control system special switch case as claimed in claim 4, it is characterized in that: the inside door bottom is equipped with the contactor switch knob, makes things convenient for the user to recover voluntarily to send.
6. load control system special switch case as claimed in claim 5 is characterized in that: the screw of inside door two ends configuration perforate is used to install seal.
7. load control system special switch case as claimed in claim 6 is characterized in that: the switch-box shell is the cold fore-telling plate of 1.5mm, surface plastic spraying, and the back of switch-box is provided with link plate, and link plate is provided with installing hole.
8. load control system special switch case as claimed in claim 7, it is characterized in that: the outside of switch-box is provided with earthing device, and louvre is opened in both sides, the close silk screen of interior weldering.
9. load control system special switch case as claimed in claim 8 is characterized in that: the inside bottom of switch-box adds and is lined with the 1.5mm insulation board, with anticreep.
10. load control system special switch case as claimed in claim 9 is characterized in that: the bottom surface cable of switch-box advances wire hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102244919A CN102723674A (en) | 2012-07-02 | 2012-07-02 | Switch box special for load control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102244919A CN102723674A (en) | 2012-07-02 | 2012-07-02 | Switch box special for load control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723674A true CN102723674A (en) | 2012-10-10 |
Family
ID=46949373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102244919A Pending CN102723674A (en) | 2012-07-02 | 2012-07-02 | Switch box special for load control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723674A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69209201T2 (en) * | 1991-09-17 | 1996-11-21 | Hitachi Ltd | Control device for an arrangement for distributing electrical energy |
| CN101604464A (en) * | 2008-06-11 | 2009-12-16 | 衡阳市天立电器设备制造有限公司 | Ultracrystalline high-voltage prepayment metering system |
| CN201466483U (en) * | 2009-06-10 | 2010-05-12 | 平顶山市康立电气有限责任公司 | Combined load control measuring tank |
| CN101852821A (en) * | 2010-06-04 | 2010-10-06 | 芜湖县鑫力电气设备有限责任公司 | Intelligent integrated circuit (IC) magnetic card electricity meter box |
| CN201994562U (en) * | 2011-01-27 | 2011-09-28 | 徐州海伦哲专用车辆股份有限公司 | Load switch box |
-
2012
- 2012-07-02 CN CN2012102244919A patent/CN102723674A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69209201T2 (en) * | 1991-09-17 | 1996-11-21 | Hitachi Ltd | Control device for an arrangement for distributing electrical energy |
| CN101604464A (en) * | 2008-06-11 | 2009-12-16 | 衡阳市天立电器设备制造有限公司 | Ultracrystalline high-voltage prepayment metering system |
| CN201466483U (en) * | 2009-06-10 | 2010-05-12 | 平顶山市康立电气有限责任公司 | Combined load control measuring tank |
| CN101852821A (en) * | 2010-06-04 | 2010-10-06 | 芜湖县鑫力电气设备有限责任公司 | Intelligent integrated circuit (IC) magnetic card electricity meter box |
| CN201994562U (en) * | 2011-01-27 | 2011-09-28 | 徐州海伦哲专用车辆股份有限公司 | Load switch box |
Non-Patent Citations (2)
| Title |
|---|
| 姚志松等: "《工业企业实用节电技术》", 31 July 2010, article "接触器节能改造和新型电器", pages: 125-129 * |
| 张弘廷: "《漏电保护器安装运行维修》", 31 January 1999, article "总保护的安装", pages: 82-87 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY, CHANGZHOU POWER SU Effective date: 20121109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121109 Address after: 213200, No. 111 North Gate Street, Golden Town, Changzhou City, Jiangsu, Jintan Applicant after: Jintan Power Supply Company of Jiangsu Electric Power Company Applicant after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Applicant after: Jiangsu Electric Power Company Applicant after: State Grid Corporation of China Address before: 213200, No. 111 North Gate Street, Golden Town, Changzhou City, Jiangsu, Jintan Applicant before: Jintan Power Supply Company of Jiangsu Electric Power Company |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121010 |