CN101714755B - Separated outdoor high-voltage switch - Google Patents

Separated outdoor high-voltage switch Download PDF

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Publication number
CN101714755B
CN101714755B CN2009101937222A CN200910193722A CN101714755B CN 101714755 B CN101714755 B CN 101714755B CN 2009101937222 A CN2009101937222 A CN 2009101937222A CN 200910193722 A CN200910193722 A CN 200910193722A CN 101714755 B CN101714755 B CN 101714755B
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phase
mutual inductor
circuit
amplifier
line voltage
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CN101714755A (en
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周迭辉
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Zhuhai Powint Electric Co ltd
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Zhuhai Copower Electric Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/20Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a separated outdoor high-voltage switch, and aims to provide a separated outdoor high-voltage switch, which has advanced technology, saves resources and reduces cost. The separated outdoor high-voltage switch comprises a C-phase current mutual inductor (1), an A-phase current mutual inductor (9), a B-phase current mutual inductor (13), a C-phase power induction transformer (2), an A-phase power induction transformer (8), a C-phase current detection transmitting unit (3), an AC-phase line voltage sampling resistor (4), an AB-phase line voltage sampling resistor (5), an AB-phase line voltage detection mutual inductor (6), an AC-phase line voltage detection mutual inductor (7), an A-phase electric quantity detection transmitting unit (10), a switch body (11), a main control unit (12) and a zero-sequence current mutual inductor (14). At the same time, in the aspect of networking mode, the separated outdoor high-voltage switch adopts 2.4G wireless network technique networking communication, thereby having the advantages of low investment and low operating cost. The separated outdoor high-voltage switch of the invention can be widely used in the field of the intelligent control of high-voltage electricity.

Description

A kind of separate type outdoor high-voltage switch
Technical field
The present invention relates to a kind of separate type outdoor high-voltage switch.
Background technology
Build medium-term and long-term development plan according to national grid; The optical, mechanical and electronic integration equipment of the intelligent development level of outdoor high-voltage switch can monitored, diagnose and protect, promote to exploitation for a long time automatically to the high-voltage electric power system running status, be the march toward an urgent demands of automation of urban and rural power grids.
From 2006, domestic power network automation particularly outdoor high-voltage switch automation began to obtain fast development.The realization of grid automation requires outdoor high-voltage switch to be equipped with intelligent controller.The various intelligent controller demands that the outdoor high-voltage switch that various functions are different is joined are being multiplied every year.These controllers comprise reclosing controller, prepared auto restart duplicate supply controller, permanent magnet mechanism controller, user demarcation load switch controller, user demarcation breaker controller and other tracer (FDR) or the like, and there is the intelligent controller manufacturer of the number man specialty that comprises that I take charge of in the whole nation.Above-mentioned controller all adopts conventional voltage transformer to do power supply and voltage detecting source.Conventional voltage transformer is transformed to 100VAC commonly used or 220VAC with high pressure such as 10KV etc., so that intelligent control part and switch divide-shut brake power supply to be provided through electromagnetic induction.The shortcoming that all voltage transformers have not only that volume is big, Heavy Weight, consumption of natural resource are many, cost an arm and a leg, also influenced when being installed in the city appearance of the city; And voltage transformer is installed more for a long time; Because the existence of its inductive nature and line mutual-ground capacitor is prone to take place on the line resonance; At this moment, voltage transformer will be impaired, also can blast when serious.In addition, because line voltage distribution is when too high, voltage transformer also damages easily, so there are many defectives in voltage transformer.But up to ending today, outdoor high-voltage switch manufacturer of national hundreds of family is always at the working voltage instrument transformer.Carry out overcurrent protection during outdoor high-voltage switch work and be absolutely necessary, this just at first must be equipped with current transformer; Along with the raising day by day of power distribution automation degree, outdoor high-voltage switch begins to realize intelligent more and more, i.e. the control of intelligent terminal of every outdoor high-voltage switch palpus outfit user required function.And must having power supply to provide, control of intelligent terminal could work, so also will be equipped with working power and the line voltage distribution detection resources of voltage transformer so that controller to be provided.Therefore, if three-phase current and three-phase voltage are detected, then every switch at first must be equipped with three current transformers and two voltage transformers.Current transformer by 300 yuan/only calculate, voltage transformer is by 3500 yuan of calculating, then the expense of every switch institute distribution current transformer and voltage transformer just reaches nearly 8000 yuan, it is thus clear that the height of cost; On the other hand, above-mentioned instrument transformer main raw material(s) is high-quality silicon steel sheet and copper paint envelope curve and epoxy resin, and the weight of three current transformers and two voltage transformers adds is in the same place, 50 kilograms at least, and heavy then kilogram up to a hundred.By annual 450000 outputs that electric pressure is the 6-40KV switch in the whole nation,, then need consume at least 22500 tons of high-quality silicon steel sheet and copper paint envelope curve and epoxy resin if will realize intellectuality.According to the data introduction, light is refined 10,000 tons of cold-reduced silicon sheets palpus power consumption 100,000,000 degree, is equivalent to two than the energy output in 1 year of large power plant.Then more valuable as for copper and epoxy resin; It is thus clear that; If alleviate or remove electric current and voltage transformer or directly reduce its cost, but can realize its function equally, the process that then not only can reduce cost, have the force urges grid automation to realize; And can save resource, energy-saving and emission-reduction protection environment, meaning is very great.In addition, because the PT volume is big, heaviness; Install inconvenient attractive in appearancely, the more important thing is that the surge characteristic of general PT is bad, and the PT quantity of adorning when same electrical network is greatly the time; Resonance takes place in circuit easily, explodes, causes serious life accident and power failure consequence thereby cause PT.
In addition, electric power circle to the network-building method that high-voltage switch gear adopts is usually at present:
1, use optical-fibre communications: disposable input cost was too high when this kind communication modes maturation but circuit were long;
2, utilize the GPRS communication: this kind mode also moves to maturity, but operation costs are too high.
In sum, present outdoor high-voltage switch of the prior art exists backward in technique, waste resource, defect of high cost.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, the separate type outdoor high-voltage switch of a kind of advanced technology is provided, saving resource, reduce cost.
The technical scheme that the present invention adopted is: the present invention includes C phase current mutual inductor, A phase current mutual inductor, B phase current mutual inductor, C phase power induction transformer, A phase power induction transformer, C phase current detection transducing unit, AC phase line voltage sampling resistor, AB phase line voltage sampling resistor, AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer, A phase electric weight detection transducing unit, Switch main body, main control unit, zero sequence current mutual inductor; Corresponding phase line is electrically connected or the electromagnetic induction connection on the elementary and said Switch main body input of said C phase current mutual inductor, A phase current mutual inductor, B phase current mutual inductor; The said C phase current of the secondary connection of said C phase current mutual inductor detects transducing unit; The said A phase of the secondary connection electric weight of said A phase current mutual inductor detects transducing unit; The said main control unit of secondary connection of said B phase current mutual inductor; Corresponding phase line is electrically connected or the electromagnetic induction connection on the elementary and said Switch main body input of said C phase power induction transformer, A phase power induction transformer; The said C phase current of the secondary connection of said C phase power induction transformer detects transducing unit; The said A phase of the secondary connection electric weight of A phase power induction transformer detects transducing unit; Said AC phase line voltage sampling resistor, AB phase line voltage sampling resistor are connected in parallel on the phase line corresponding on the said Switch main body input; The elementary correspondence of said AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer is connected in said AC phase line voltage sampling resistor, the loop, AB phase line voltage sampling resistor place; The said A phase of the secondary connection electric weight of said AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer detects transducing unit; Said zero sequence current mutual inductor is the punching instrument transformer; Winding and said A electric weight detection transducing unit connection mutually, three phase lines of A, B, C on the said Switch main body output are passed at the center.
Said main control unit comprises microprocessor, amplifier, 5V circuit I, 24V circuit, charge management circuit, 5V circuit I I, GPRS module, radio receiving transmitting module; Said microprocessor is electrically connected with said amplifier, 5V circuit I, GPRS module, radio receiving transmitting module; Said GPRS module is electrically connected with said 5V circuit I I; Said 24V circuit is electrically connected with said 5V circuit I, 5V circuit I I, charge management circuit, and said amplifier, charge management circuit are connected with the secondary of said B phase current mutual inductor respectively.
Said A phase electric weight detects transducing unit and comprises single-chip microcomputer I, amplifier I, amplifier II, amplifier III, 5V circuit I II, voltage stabilizing circuit, radio receiving transmitting module I; Said single-chip microcomputer I is electrically connected with said amplifier I, amplifier II, amplifier III, 5V circuit I II, radio receiving transmitting module I; Said 5V circuit I II is connected with said voltage stabilizing circuit; Said amplifier I connects the secondary of said A phase current mutual inductor; Said amplifier II connects the secondary of said AC phase line voltage detecting instrument transformer, and said amplifier II connects the secondary of said AB phase line voltage detecting instrument transformer, and said voltage stabilizing circuit connects the secondary of said A phase power induction transformer.
Said C phase current detects transducing unit and comprises single-chip microcomputer II, amplifier IV, 5V circuit I V, Voltage stabilizing module I, radio receiving transmitting module II; Said single-chip microcomputer II is electrically connected with said amplifier IV, 5V circuit I V, radio receiving transmitting module II; Said 5V circuit I V is electrically connected with said Voltage stabilizing module I; Said amplifier IV connects the secondary of said C phase current mutual inductor, and said Voltage stabilizing module I connects the secondary of said C phase power induction transformer.
The invention has the beneficial effects as follows: owing to the present invention includes C phase current mutual inductor, A phase current mutual inductor, B phase current mutual inductor, C phase power induction transformer, A phase power induction transformer, C phase current detection transducing unit, AC phase line voltage sampling resistor, AB phase line voltage sampling resistor, AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer, A phase electric weight detection transducing unit, Switch main body, main control unit, zero sequence current mutual inductor; Corresponding phase line is electrically connected or the electromagnetic induction connection on the elementary and said Switch main body input of said C phase current mutual inductor, A phase current mutual inductor, B phase current mutual inductor; The said C phase current of the secondary connection of said C phase current mutual inductor detects transducing unit; The said A phase of the secondary connection electric weight of said A phase current mutual inductor detects transducing unit; The said main control unit of secondary connection of said B phase current mutual inductor; Corresponding phase line is electrically connected or the electromagnetic induction connection on the elementary and said Switch main body input of said C phase power induction transformer, A phase power induction transformer; The said C phase current of the secondary connection of said C phase power induction transformer detects transducing unit; The said A phase of the secondary connection electric weight of A phase power induction transformer detects transducing unit; Said AC phase line voltage sampling resistor, AB phase line voltage sampling resistor are connected in parallel on the phase line corresponding on the said Switch main body input; The elementary correspondence of said AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer is connected in said AC phase line voltage sampling resistor, the loop, AB phase line voltage sampling resistor place; The said A phase of the secondary connection electric weight of said AB phase line voltage detecting instrument transformer, AC phase line voltage detecting instrument transformer detects transducing unit; Said zero sequence current mutual inductor is the punching instrument transformer; Winding and said A electric weight detection transducing unit connection mutually; Three phase lines of A, B, C on the said Switch main body output are passed at the center; The present invention has adopted the microcontroller technology, current-voltage conversion is technological and the RF digital transmission technology realizes that measurement and the digital conversion of high-tension current, voltage, formation do not have an outdoor high-voltage switch fault detect terminal of the comprehensive instrument transformer of conventional P T, so avoided the PT use on the high-voltage switch gear out of doors, has saved resource, has improved Supply Security; Its high-tension line electric current and voltage transducing part that need not to add working power is a complete low-cost and high-precision comprehensive sensor; Except the electric current and voltage sensing, have phase fault protection and small current neutral grounding protection simultaneously and overlap control and wireless network four remote control function.Simultaneously, the present invention adopts 2.4G radio network technique networking communication aspect networking mode, has less investment, advantage that operation costs are low.
Description of drawings
Fig. 1 is an electrical block diagram of the present invention;
Fig. 2 is a main control unit circuit block diagram of the present invention;
Fig. 3 is that A phase electric weight of the present invention detects the transducing unit circuit block diagram;
Fig. 4 is that C phase current of the present invention detects the transducing unit circuit block diagram.
Embodiment
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The present invention includes C phase current mutual inductor 1, A phase current mutual inductor 9, B phase current mutual inductor 13, C phase power induction transformer 2, A phase power induction transformer 8, C phase current detection transducing unit 3, AC phase line voltage sampling resistor 4, AB phase line voltage sampling resistor 5, AB phase line voltage detecting instrument transformer 6, AC phase line voltage detecting instrument transformer 7, A phase electric weight detection transducing unit 10, Switch main body 11, main control unit 12, zero sequence current mutual inductor 14; Corresponding phase line is electrically connected or electromagnetic induction connects on elementary and said Switch main body 11 inputs of said C phase current mutual inductor 1, A phase current mutual inductor 9, B phase current mutual inductor 13; The said C phase current of the secondary connection of said C phase current mutual inductor 1 detects transducing unit 3; The said A phase of the secondary connection electric weight of said A phase current mutual inductor 9 detects transducing unit 10; The said main control unit 12 of the secondary connection of said B phase current mutual inductor 13; Corresponding phase line is electrically connected or electromagnetic induction connects on elementary and said Switch main body 11 inputs of said C phase power induction transformer 2, A phase power induction transformer 8; The said C phase current of the secondary connection of said C phase power induction transformer 2 detects transducing unit 3; The said A phase of the secondary connection electric weight of A phase power induction transformer 8 detects transducing unit 10; Said AC phase line voltage sampling resistor 4, AB phase line voltage sampling resistor 5 are connected in parallel on the phase line corresponding on said Switch main body 11 inputs; The elementary correspondence of said AB phase line voltage detecting instrument transformer 6, AC phase line voltage detecting instrument transformer 7 is connected in said AC phase line voltage sampling resistor 4, the loop, AB phase line voltage sampling resistor 5 place; The said A phase of the secondary connection electric weight of said AB phase line voltage detecting instrument transformer 6, AC phase line voltage detecting instrument transformer 7 detects transducing unit 10; Said zero sequence current mutual inductor 14 is the punching instrument transformer, winding and said A electric weight detection transducing unit 10 connections mutually, and three phase lines of A, B, C on said Switch main body 11 outputs are passed at the center.
Said main control unit 12 comprises microprocessor 121, amplifier 122,5V circuit I 123,24V circuit 124, charge management circuit 125,5V circuit I I 126, GPRS module 127, radio receiving transmitting module 128; Said microprocessor 121 is electrically connected with said amplifier 122,5V circuit I 123, GPRS module 127, radio receiving transmitting module 128; Said GPRS module 127 is electrically connected with said 5V circuit I I 126; Said 24V circuit 124 is electrically connected with said 5V circuit I 123,5V circuit I I 126, charge management circuit 125, and said amplifier 122, charge management circuit 125 are connected with the secondary of said B phase current mutual inductor 13 respectively.
Said A phase electric weight detects transducing unit 10 and comprises single-chip microcomputer I 101, amplifier I 102, amplifier II 103, amplifier III104,5V circuit I II105, voltage stabilizing circuit 106, radio receiving transmitting module I 107; Said single-chip microcomputer I 101 is electrically connected with said amplifier I 102, amplifier II 103, amplifier III104,5V circuit I II105, radio receiving transmitting module I 107; Said 5VIII circuit 105 is connected with said voltage stabilizing circuit 106; Said amplifier I 102 connects the secondary of said A phase current mutual inductor 9; Said amplifier II103 connects the secondary of said AC phase line voltage detecting instrument transformer 7; Said amplifier II 104 connects the secondary of said AB phase line voltage detecting instrument transformer 6, and said voltage stabilizing circuit 106 connects the secondary of said A phase power induction transformer 8.
Said C phase current detects transducing unit 3 and comprises single-chip microcomputer II 31, amplifier IV32,5V circuit I V33, Voltage stabilizing module I 34, radio receiving transmitting module II 35; Said single-chip microcomputer II 31 is electrically connected with said amplifier IV32,5V circuit I V33, radio receiving transmitting module II 35; Said 5V circuit I V33 is electrically connected with said Voltage stabilizing module I 34; Said amplifier IV32 connects the secondary of said C phase current mutual inductor 1, and said Voltage stabilizing module I 34 connects the secondary of said C phase power induction transformer 2.
Adopt power induction transformer, current transformer, C phase current to detect transducing unit, line voltage sampling resistor, line voltage detecting instrument transformer, A phase current and line voltage detecting transducing unit, zero sequence current mutual inductor and main control unit in the present embodiment.The present invention mainly is made up of four modules:
First functional module function: in order to realize traditional P T function of supplying power.Scheme is at the inner B of installation of switch phase CT; The secondary current that utilizes this CT to induce causes in the main control unit 12; Miniature transformer of this current drives; Transformer produces voltage after voltage stabilizing obtains power supply, and this power supply charges to storage battery through the Charge Management unit, and this storage battery is made the working power of intelligent controller.Research according to my department shows, but when the CT secondary current is 0.4A just long-term stable operation of system, the energy storage effect was excellent when electric current was big.This part has replaced the function of supplying power of present outdoor switch PT.In addition, after B phase CT secondary current is introduced main control module, except that above-mentioned charge power supply is provided, does to detect B simultaneously and use current source mutually, after measuring instrument transformer and waveform processing, the B phase current is sampled by main control module.
Second functional module function: sampling C phase current also reaches main control module with data wireless.Scheme is following: the present invention includes the power induction transformer, when circuit C has electric current mutually, can obtain the required 3.3V voltage of microcontroller work through suitable processing.The measurement instrument transformer that has the low-cost small size of using for measurement C phase current among Fig. 1.Little processing section is attached on the C phase cable, and current potential is very nearly the same mutually with C, and has high voltage between the earth.So microcontroller transfers to the main control module little with the earth voltage difference with the result of the C phase current sampling micropower wireless data transfer module through a 433MHz.
The 3rd functional module function: sampling A phase current and two line voltages, and data wireless reached main control module.Scheme is following: on A phase cable, be with the voltage that induction coil 8,8 induces and give the micro controller unit on the A item 10 power supplies after treatment.9 for detecting the small-sized measurement instrument transformer of A phase current among Fig. 1, sampled by 10 pairs of A phase currents of micro-control unit.
The voltage detecting function of PT realizes through following method: outside switch, insert high-tension resistive 5 and 4 between A, B phase and A, the C phase respectively, then will obtain on these two resistance and line voltage current corresponding.Then these two electric currents are used and measured instrument transformer 6 and 7 picked up signal; Sample and obtain two line voltages and A phase current by 10 pairs of A phase currents of micro-control unit.The same with second functional module, microprocessing unit 10 is attached on the A phase cable, and current potential is very nearly the same mutually with A, and has high voltage between the earth.So data also transfer to main control module with the micropower wireless data transfer module of a 433MHz.
The 4th functional module.Function: call data, sampling B phase current and zero-sequence current, breaking-closing operating, carry out data communication with the backstage.
Main control unit 12 among Fig. 1, and instrument transformer, switching winding, closing coil are connected mutually for its B through cable and Switch main body.After main control unit reception and the sampled data, judge that whether switch has fault generation, fault to take place still out-of-bounds, determines whether divide-shut brake more in play.For realizing four remote control function, adopt GPRS network to communicate, replace wire communication.In sum, this control terminal has obtained power supply, has also obtained the line voltage swing simultaneously, so replaced traditional P T fully through B phase CT; In addition, the CT of A, C phase also replaces with the little lightweight measurement instrument transformer of volume.Reduce resource consumption, improve the power supply safety performance, reduce cost greatly thereby reached, reach and accelerate to realize that outdoor high-voltage switch is intelligent, the purpose of automation.

Claims (4)

1. separate type outdoor high-voltage switch; It is characterized in that: it comprises that C phase current mutual inductor (1), A phase current mutual inductor (9), B phase current mutual inductor (13), C phase power induction transformer (2), A phase power induction transformer (8), C phase current detect transducing unit (3), AC phase line voltage sampling resistor (4), AB phase line voltage sampling resistor (5), AB phase line voltage detecting instrument transformer (6), AC phase line voltage detecting instrument transformer (7), A phase electric weight detection transducing unit (10), Switch main body (11), main control unit (12), zero sequence current mutual inductor (14); Corresponding phase line is electrically connected or the electromagnetic induction connection on elementary and said Switch main body (11) input of said C phase current mutual inductor (1), A phase current mutual inductor (9), B phase current mutual inductor (13); The said C phase current of the secondary connection of said C phase current mutual inductor (1) detects transducing unit (3); The said A phase of the secondary connection electric weight of said A phase current mutual inductor (9) detects transducing unit (10); The said main control unit of secondary connection (12) of said B phase current mutual inductor (13); Corresponding phase line is electrically connected or the electromagnetic induction connection on elementary and said Switch main body (11) input of said C phase power induction transformer (2), A phase power induction transformer (8); The said C phase current of the secondary connection of said C phase power induction transformer (2) detects transducing unit (3); The said A phase of the secondary connection electric weight of A phase power induction transformer (8) detects transducing unit (10); Said AC phase line voltage sampling resistor (4), said AB phase line voltage sampling resistor (5) are connected in parallel on the phase line corresponding on said Switch main body (11) input; The elementary correspondence of said AB phase line voltage detecting instrument transformer (6), said AC phase line voltage detecting instrument transformer (7) is connected in said AC phase line voltage sampling resistor (4), the loop, AB phase line voltage sampling resistor (5) place; The said A phase of the secondary connection electric weight of said AB phase line voltage detecting instrument transformer (6), said AC phase line voltage detecting instrument transformer (7) detects transducing unit (10); Said zero sequence current mutual inductor (14) is the punching instrument transformer; Winding and said A electric weight detection transducing unit (10) connection mutually, three phase lines of A, B, C on said Switch main body (11) output are passed at the center.
2. a kind of separate type outdoor high-voltage switch according to claim 1; It is characterized in that: said main control unit (12) comprises microprocessor (121), amplifier (122), 5V circuit I (123), 24V circuit (124), charge management circuit (125), 5V circuit I I (126), GPRS module (127), radio receiving transmitting module (128); Said microprocessor (121) is electrically connected with said amplifier (122), said 5V circuit I (123), said GPRS module (127), said radio receiving transmitting module (128); Said GPRS module (127) is electrically connected with said 5V circuit I I (126); Said 24V circuit (124) is electrically connected with said 5V circuit I (123), said 5V circuit I I (126), said charge management circuit (125), said amplifier (122), said charge management circuit (125) respectively with secondary connection of said B phase current mutual inductor (13).
3. a kind of separate type outdoor high-voltage switch according to claim 1; It is characterized in that: said A phase electric weight detects transducing unit (10) and comprises single-chip microcomputer I (101), amplifier I (102), amplifier II (103), amplifier III (104), 5V circuit I II (105), voltage stabilizing circuit (106), radio receiving transmitting module I (107); Said single-chip microcomputer I (101) is electrically connected with said amplifier I (102), said amplifier II (103), said amplifier III (104), said 5V circuit I II (105), said radio receiving transmitting module I (107); Said 5V circuit I II (105) is connected with said voltage stabilizing circuit (106); Said amplifier I (102) connects the secondary of said A phase current mutual inductor (9); Said amplifier II (103) connects the secondary of said AC phase line voltage detecting instrument transformer (7); Said amplifier II (104) connects the secondary of said AB phase line voltage detecting instrument transformer (6), and said voltage stabilizing circuit (106) connects the secondary of said A phase power induction transformer (8).
4. a kind of separate type outdoor high-voltage switch according to claim 1; It is characterized in that: said C phase current detects transducing unit (3) and comprises single-chip microcomputer II (31), amplifier IV (32), 5V circuit I V (33), Voltage stabilizing module I (34), radio receiving transmitting module II (35); Said single-chip microcomputer II (31) is electrically connected with said amplifier IV (32), said 5V circuit I V (33), said radio receiving transmitting module II (35); Said 5V circuit I V (33) is electrically connected with said Voltage stabilizing module I (34); Said amplifier IV (32) connects the secondary of said C phase current mutual inductor (1), and said Voltage stabilizing module I (34) connects the secondary of said C phase power induction transformer (2).
CN2009101937222A 2009-11-06 2009-11-06 Separated outdoor high-voltage switch Active CN101714755B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2009101937222A CN101714755B (en) 2009-11-06 2009-11-06 Separated outdoor high-voltage switch

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CN101714755B true CN101714755B (en) 2012-02-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102624090B (en) * 2012-03-28 2016-01-13 北京水木源华电气有限公司 Based on the intelligent high-pressure panel switches of electronic mutual inductor
CN104410156A (en) * 2014-11-12 2015-03-11 江苏东源电器集团股份有限公司 Intelligent outdoor separator

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