CN1088022A - Memory or signature circuit - Google Patents
Memory or signature circuit Download PDFInfo
- Publication number
- CN1088022A CN1088022A CN 93119280 CN93119280A CN1088022A CN 1088022 A CN1088022 A CN 1088022A CN 93119280 CN93119280 CN 93119280 CN 93119280 A CN93119280 A CN 93119280A CN 1088022 A CN1088022 A CN 1088022A
- Authority
- CN
- China
- Prior art keywords
- circuit
- data
- memory
- breaker
- switching device
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
- H02H1/0053—Means for storing the measured quantities during a predetermined time
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of memory circuitry that is used for circuit-breaker.This circuit has a non-volatility memorizer or a kind of by battery backed memory, and is switched to the single input lead in each circuit of different time constant.Obtain data and select input signal from each lead with long period normal road branch road.
Description
The present invention relates to a kind of memory circuitry or signature circuit that is used for electric switchgear.
The present invention will describe by the circuit-breaker of installing on the piezoelectric bar in example and the reference, and should be appreciated that the present invention also can be used for the circuit-breaker and the switching device of other type.
The circuit-breaker of installing on the electric pole that is used for pressing typically has the vacuum cut-off device that is included in seal closure or the shell.Usually be installed in the box of the sealing control distribution board that the electric pole lower is easy to install on the approaching electric pole operator's control flow and relevant microelectronic circuit are housed.The sealing distribution board provides protective effect and the operation of circuit-breaker is controlled and monitored, and remote control may be provided.The sealing distribution board utilizes the stube cable of non-grafting to be connected with circuit-breaker.This circuit-breaker constitutes remote controlled and a monitor circuit-breaker or an automatic switch with distribution board.Or distribution board comprises all control circuits that the circuit-breaker normal function is required, or change kind of a mode, be generally comprised within some circuit in the distribution board and also can be included in and be connected in the circuit-breaker shell or with circuit-breaker but not directly be connected with distribution board.
Circuit-breaker comprises having the vacuum cut-off device that is used for each phase contact of circuit breaker.Circuit breaker has a closing coil, and mechanism's dish of its operation moves with the combined floodgate contact contact push rod.Tripping operation winding or coil are established and are used to open contact.Breaking coil moves to reach this purpose tripping operation armature.Usually closing coil utilizes a capacitor excitatory, and similarly one has been filled electric capacitor and also is used for excitatory breaking coil.As mentioned above, connect control distribution board and circuit breaker with non-socket cable.This cable can be connected on the switching cable input module in the circuit breaker shell, and it can be used for the Long-distance Control and the monitoring of circuit breaker.For a plurality of circuit-breakers that are arranged on same place or the substation, hope sometimes maybe needs from a circuit breaker disconnection cable and is connected on the contiguous circuit breaker, and this is not to be rare.When doing like this, just be difficult to determine it is which circuit-breaker is worked, and what kind of its use and operation history be from remote site actually.The particularly important is the use history that accurately to understand each circuit breaker, so that safeguard regularly and keep in repair.Can guarantee the normal running of each circuit-breaker in this way.
At present its feature and use historical aspect also not easily method can be determined remotely or by this locality that this difficulty also combines such fact: the cable that stretches out from a control distribution board disconnects mutually with its common circuit-breaker and is connected on the contiguous circuit-breaker sometimes.
The object of the present invention is to provide a kind of memory or signature circuit, it can make above-mentioned shortcoming be reduced to minimum degree at least.
According to an aspect, the invention provides a kind of circuit-breaker or other switching device, it is connected with a control distribution board via cable, this circuit-breaker or other switching device comprise memory or the signature circuit that is connected with the shell of this circuit-breaker or other switching device, the storage of this memory circuitry is exclusively used in the data and the information of circuit-breaker or other switching device, data in parallel with it and information for example are: the number of circuit-breaker or other switching device, series number, quality assurance information, calibration data and their voltage shield, build date, switching device type, I
2T data and other information, memory circuitry comprises the non-volatility memorizer of storage data and information, make the data in the memory circuitry thus and information can be held and the Be Controlled circuit obtains, or when switching device disconnects with control circuit that originally is connected or distribution board, can obtain by the distribution board that is close to.
According to a further aspect in the invention, provide and be used to store information and memory of data or the signature circuit that is exclusively used in circuit-breaker or other switching device, information and the data relevant with this circuit for example are: the number of circuit-breaker or other switching device, series number, quality assurance information, calibration data and voltage shield thereof, build date, the switching device type, I
2T data and other information, this circuit comprise the non-volatility memorizer of storage data, and these data and information can be provided by Local or Remote, and they can inquire from remote site.
This non-volatility memorizer can comprise a kind of battery backed RAM memory element that is provided with.Another kind may be that this memory element can be made up of the programmable memory element, for example need not battery backed a kind of E
2The PROM element.The input signal of control store element, to the data of memory input, and the selection of data output area can be by the single input lead control that is switched to each lead of different time constant branch road.A kind of mode that can reach this point is to use the Schmitt trigger circuit that is connected with memory element clock, data and selection lead-in wire.Clock signal is to obtain by one in each lead, and has in order to obtaining the minimum time constant branch road of clock pulse signal, and data and selection input signal are to be obtained by each branch road with long period constant.In this way, just can use solid conductor, obtain being used for all signals of memory element by it.
Describe a special preferred embodiment of the present invention referring now to a unique accompanying drawing, this accompanying drawing is represented the detailed circuit diagram of one embodiment of the present of invention.
In the figure, resistance R 10, capacitor C 1, transistor Q4 and shunt capacitor C4 and C5 are for memory U1 provides a scalable power supply, and the lead that indicates speech PRESS+ allows input signal to supply on the memory U1.Resistance R 11 and R12 and Zener diode Z1 determine to be input to the condition of memory, and Schmidt trigger U2:A also plays this effect.
Memory U1 in this embodiment is an E
2The PROM element is although also can use any non-volatile memory in addition.For example, can use and utilize battery backed RAM memory.The output signal of coming from memory component is connected on the dropping resistor R15.The Schmidt trigger element U2:E of serial connection and U2:F determine from the condition of memory element U1 output.Resistance R 16 is biasing resistors of transistor Q5.Zener diode Z2 is connected across on the collector emitter of transistor Q5, is used for the voltage that protective transistor avoids high level.Current-limiting resistance R17 connects with the collector electrode of transistor Q5.Output by memory can obtain on terminal SU2.
Memory element U1 has a clock input that is provided to lead-in wire 2 by Schmidt trigger U2:B.The pulse of being supplied with by Schmidt trigger is rather narrow, and timing occurs on the trailing edge of this burst pulse.This clock pulse arrived memory element U1 before the lead-in wire 3 and 1 of signal arrival memory element.The time constant of representing by R13 and C2 greater than supply on the lead-in wire 2 clock-pulse width and less than time constant by resistance R 14 and capacitor C 3 expressions.Utilization selects can accomplish and only use a lead just can make the memory timing during the corresponding time constant that the input data are to memory, and the information that selection is continued from memory, and can obtain it on output lead 4.
This storage element stores comprises that following information is the data and the information of representative:
-series number;
The calibration data of-current transformer;
-quality assurance information;
-switching device number of operations;
-voltage shield is checked the date;
The I that-expression electric arc and contact loss are measured
2The T data;
-build date;
-switching device type (CB or load break switch);
-other.
Some data in these data can deposit memory in before initial work, and other data are deposited in memory with the result that operation is experienced as circuit-breaker useful life.So be specifically designed in the memory or signature circuit that the information of circuit-breaker just is stored in this circuit-breaker is connected.And accomplish that these information and data that are exclusively used in circuit-breaker can not lost when stube cable is connected to another circuit-breaker from a circuit-breaker disconnection.The circuit-breaker that disconnect to connect still has coupled memory or signature circuit, and the information that is used for circuit breaker separately can not lose, in case rebulid and connect these information and still can recover or be queried to any distribution board that is connected.Similarly, these information that are exclusively used in circuit-breaker also can not be lost and these information can replaced control circuit obtain using when control circuit is replaced.
Claims (10)
1, a kind of circuit-breaker or other switching device, it is connected with a control distribution board via cable, this circuit-breaker or other switching device comprise memory or the signature circuit that is connected with the shell of this circuit-breaker or other switching device, the storage of this memory circuitry is exclusively used in the data and the information of circuit-breaker or other switching device, data related with it and information for example are: the number of circuit-breaker or other switching device, series number, quality assurance information, calibration data and its voltage shield, build date, the switching device type, I
2T data and other information, memory circuitry comprises the non-volatility memorizer of storage data and information, make the data in the memory circuitry thus and information can be held and the Be Controlled circuit obtains, or when switching device disconnects with control circuit that originally is connected or distribution board, can obtain by the distribution board that is close to.
2, a kind of be used to store be exclusively used in circuit-breaker or in addition information and the memory of data or the signature circuit of switching device, information and the data relevant with this circuit for example are: the number of circuit-breaker or other switching device, series number, quality assurance information, calibration data and voltage shield thereof, build date, switching device type, I
2T data and other information, this circuit comprise the non-volatility memorizer of storage data, and these data and information can be by local and by long-range supply, and they can inquire from remote site.
3, according to the circuit-breaker of claim 1 or other switching device, wherein memory is with battery backed RAM memory or E
2The PROM memory element.
4, according to the circuit-breaker of claim 1 or other switching device, the input signal of control storage wherein, to memory input data, and the selection of data output area is to be controlled by the single input lead that is switched to each lead of different time constant branch road.
5, according to the circuit-breaker of claim 4 or other switching device, wherein different time constant branch road is provided with the Schmitt trigger circuit that is connected on each lead, and obtain clock signal by branch road, and obtain data and select input signal by each branch road with long period constant with minimum time constant.
6,, comprise the power supply of power supply to memory and Schmitt trigger circuit according to the circuit-breaker or the switching device of claim 5.
7, according to the circuit of claim 2, wherein memory is a kind of battery backed RAM memory or E
2The PROM memory element.
8, according to the circuit of claim 2, wherein the input signal of control storage is imported data to memory, and the selection of data output area is to be controlled by the single input lead that is switched to each lead of different time constant branch road.
9, circuit according to Claim 8, wherein different time constant branch road is provided with the Schmitt trigger circuit that is connected on each lead, and obtain clock signal by branch road, and obtain data and select input signal by each branch road of concrete long period constant with minimum time constant.
10,, comprise the power supply of power supply to memory and Schmitt trigger circuit according to the circuit of claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPL4655 | 1992-09-14 | ||
| AUPL465592 | 1992-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088022A true CN1088022A (en) | 1994-06-15 |
Family
ID=3776411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93119280 Pending CN1088022A (en) | 1992-09-14 | 1993-09-14 | Memory or signature circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1088022A (en) |
| WO (1) | WO1994007254A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU768686B2 (en) * | 2000-04-05 | 2003-12-18 | Nu-Lec Industries Pty Limited | Isolating circuit breaker and circuit protection arrangement |
| AUPQ672300A0 (en) * | 2000-04-05 | 2000-05-04 | Nu-Lec Industries Pty Limited | Isolating circuit breaker and circuit protection arrangement |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4476511A (en) * | 1980-04-15 | 1984-10-09 | Westinghouse Electric Corp. | Circuit interrupter with front panel numeric display |
| CH655587B (en) * | 1983-09-22 | 1986-04-30 | ||
| US4680706A (en) * | 1984-05-31 | 1987-07-14 | Cooper Industries, Inc. | Recloser control with independent memory |
| US4672501A (en) * | 1984-06-29 | 1987-06-09 | General Electric Company | Circuit breaker and protective relay unit |
| DE3505818A1 (en) * | 1985-02-20 | 1986-08-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | MONITORING AND CONTROL DEVICE FOR SWITCHGEAR |
| FR2592737B1 (en) * | 1986-01-03 | 1988-03-18 | Merlin Gerin | READER FOR A DIGITAL TRIGGER ASSOCIATED WITH A POWER CUT-OFF APPARATUS |
| FR2602610B1 (en) * | 1986-08-08 | 1994-05-20 | Merlin Et Gerin | STATIC TRIGGER OF AN ELECTRIC CIRCUIT BREAKER WITH CONTACT WEAR INDICATOR |
| FR2654539B1 (en) * | 1989-11-16 | 1994-04-08 | Merlin Gerin | ELECTRONIC TRIGGER WITH A FRONT PANEL CONSISTING OF A FLAT SCREEN DISPLAY. |
| US4958252A (en) * | 1990-01-16 | 1990-09-18 | Westinghouse Electric Corp. | Circuit breaker with rating plug having memory |
| DE4036081C2 (en) * | 1990-04-26 | 1994-10-06 | Mitsubishi Electric Corp | Semiconductor memory plug-in module |
| AU8935791A (en) * | 1990-10-11 | 1992-05-20 | Intellikey Corporation | Electronic lock and key system |
| US5196831A (en) * | 1991-07-19 | 1993-03-23 | General Electric Company | Electric switchgear equipment with detection of unauthorized changes to the setpoints |
-
1993
- 1993-09-14 WO PCT/AU1993/000472 patent/WO1994007254A1/en active Application Filing
- 1993-09-14 CN CN 93119280 patent/CN1088022A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO1994007254A1 (en) | 1994-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |