CN108599112A - A kind of tripping coil driving circuit protective relaying device - Google Patents
A kind of tripping coil driving circuit protective relaying device Download PDFInfo
- Publication number
- CN108599112A CN108599112A CN201810554989.9A CN201810554989A CN108599112A CN 108599112 A CN108599112 A CN 108599112A CN 201810554989 A CN201810554989 A CN 201810554989A CN 108599112 A CN108599112 A CN 108599112A
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- China
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- data processing
- processing unit
- unit
- data
- driving circuit
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention is a kind of tripping coil driving circuit protective relaying device, and in particular to avoid when breaker tripping and closing operation keeping tripping coil long charged due to mechanical breakdown, auxiliary switch position are improper etc. and damages a kind of protective relaying device used to tripping coil is controlled in substation.It is characterized in that being made of seven parts：Data processing unit, man-machine interaction unit, Hall sensor, power relay, coil driver, data communication unit, alarm output unit.The present apparatus can monitor the driving current working condition of tripping coil in real time, driving circuit is quickly disconnected when beyond setting valve, avoid tripping coil scaling loss by long-time is by high current, and can storage coil action current record, the present apparatus is simple in structure, easy for installation.
Description
Technical field
The present invention is a kind of tripping coil driving circuit protective relaying device, and in particular to is jumped to being controlled in substation
Closing coil avoid when breaker tripping and closing operation keeping tripping coil long due to mechanical breakdown, auxiliary switch position are improper etc.
Time is charged and damages a kind of protective relaying device used.
Background technology
Electric system switchs in closing loop, often there is the case where tripping coil is burnt, and gives relay protection work
Bring many troubles.This is mainly caused by following reason：Bite tripping occurs for circuit breaker operation mechanism；Auxiliary contact due to
Situations such as usage time is relatively long, capacity is inadequate, arcing causes auxiliary contact viscous dead；Auxiliary contact position and on off state position are not
Completely corresponding, action mismate.The above situation can all make breaker tripping and closing high current long duration of action in tripping coil,
So that causing coil burnout, influence securely and reliably to power.
Invention content
The present invention is the normally-closed contact by concatenating power relay in tripping coil driving circuit, and utilizes Hall
Current sensor monitor tripping coil driving circuit in operating current, tripping coil driving circuit because failure cannot and
When disjunction when, this protective relaying device forces disjunction fault loop electric current after certain delay time, ensures breaker tripping and closing line
The safety of circle and system circuit.
The present invention provides a kind of tripping coil driving circuit protective relaying devices, it is characterised in that：At data
Manage unit, man-machine interaction unit, Hall sensor, power relay, coil driver, data communication unit and warning output
Seven part of unit；
The data processing unit is connected with man-machine interaction unit, Hall sensor, power relay, coil drive electricity
Road, data communication unit and alarm output unit；
The man-machine interaction unit carries out data interaction with data processing unit, by running parameter and work log data
Output display, and receive setting parameter input by user；
The Hall sensor is used to acquire current status in tripping coil driving circuit, and by electric current Value Data
Pass to data processing unit；
The coil driver receives the on off operating mode of the control instruction control power relay of data processing unit；
One group of contact portion breaker tripping and closing driving circuit of the power relay, another group of contact-bound data processing are single
The working condition of power relay is fed back to data processing unit by member；
The data communication unit can be connect with background monitoring system, and data are adjusted in uploading operation data or reception；
The alarm output unit receives the indicator that data processing unit is sent out, and is exported by acousto-optic and hard contact
The work state information of device.
The present apparatus can monitor the driving current working condition of tripping coil in real time, and drive is quickly disconnected when beyond setting valve
Dynamic circuit, avoids tripping coil scaling loss by long-time is by high current, and can storage coil action current record, the present apparatus
It is simple in structure, easy for installation.
Description of the drawings
Fig. 1 is the system schematic of the present invention.
The specific catenation principle figure of system of the positions Fig. 2 present invention.
Specific implementation mode
Technical scheme of the present invention is described in detail below in conjunction with the accompanying drawings：
Fig. 1 is the system schematic of the present invention.As shown in Figure 1, a kind of tripping coil driving circuit protective relaying device,
Including data processing unit, man-machine interaction unit, Hall sensor, power relay, coil driver, data communication unit
With seven part of alarm output unit；
Data processing unit is connected with man-machine interaction unit, Hall sensor, power relay, coil driver, number
According to communication unit and alarm output unit；
Man-machine interaction unit carries out data interaction with data processing unit, running parameter and work log data is exported aobvious
Show, and receives setting parameter input by user；
Hall sensor is used to acquire the current status in tripping coil driving circuit, and current value data transfer is given
Data processing unit；
Coil driver receives the on off operating mode of the control instruction control power relay of data processing unit；
One group of contact portion breaker tripping and closing driving circuit of power relay, another group of contact-bound data processing unit will
The working condition of power relay feeds back to data processing unit；
Data communication unit can be connect with background monitoring system, and data are adjusted in uploading operation data or reception；
Alarm output unit receives the indicator that sends out of data processing unit, passes through acousto-optic and hard contact output device
Work state information.
Specially：Such as Fig. 2
The normally-closed contact K1 of relay J1 is serially connected in tripping coil driving circuit, and when present apparatus power down, breaker tripping and closing are returned
Road can work normally.
When tripping coil driving circuit works, operating current is provided to circuit by driving power, tripping coil has
Galvanomagnetic-effect is generated when electric current flows through, attracts contact action, executes breaker tripping and closing operation.
Tripping coil can be burnt up when electrification time is more than time rating Te due to mechanical breakdown etc..
Hall sensor T1 real-time sampling tripping coil driving circuit electric currents, number is converted analog signals into through ADC
Signal Ti passes to data processing unit.
Breaker tripping and closing driving circuit current duration Ti is compared by data processing unit with setting limit value Tx, and Ti exceeds
When limit value Tx values, out-of-limit protection processing is carried out.
The out-of-limit protection processing of data processing unit will apply high level driving to the base stage of triode Q1, Q2, Q3 and Q4
Signal.
After triode Q1 base stages obtain high level drive signal, collector and emitter conducting, relay J1 coils obtain
12V operating currents drive normally-closed contact K1, K2 action；
After triode Q2, Q3 and Q4 base stage obtains high level drive signal, collector and emitter conducting passes through hair respectively
The contacts K3 of optical diode L1, buzzer B1 and relay J2 send out sound and light alarm signal to outside.
When relay J1 coils obtain operating current, normally-closed contact K1, K2 action, contact K1 actions disconnect breaker tripping and closing driving
Circuit.
The practical implementing result of relay J1 is fed back to data processing unit by K2.
Diode D1, D2 are connected in parallel on the coil both ends of relay J1, J2 respectively, surge current when absorbing coil acts,
Protect coil can long-term work.
Maintenance personnel can pass through the running parameters such as the out-of-limit limit value Tx of human-computer interaction interface adjustment.
Data processing unit can carry out data interaction by data communication unit and back-stage management machine.
Heretofore described specific implementation case is only the preferable case study on implementation of the present invention, is not used for limiting this hair
Bright practical range.That is equivalent changes and modifications made by all contents according to scope of the present invention patent, all should be used as this hair
Bright technology scope.
Claims (1)
1. a kind of tripping coil driving circuit protective relaying device, it is characterised in that：Including data processing unit, human-computer interaction
Unit, Hall sensor, power relay, seven part of coil driver, data communication unit and alarm output unit；
The data processing unit be connected with man-machine interaction unit, Hall sensor, power relay, coil driver,
Data communication unit and alarm output unit；
The man-machine interaction unit carries out data interaction with data processing unit, and running parameter and work log data are exported
It has been shown that, and receive setting parameter input by user；
The Hall sensor is used to acquire current status in tripping coil driving circuit, and by current value data transfer
To data processing unit；
The coil driver receives the on off operating mode of the control instruction control power relay of data processing unit；
One group of contact portion breaker tripping and closing driving circuit of the power relay, another group of contact-bound data processing unit,
The working condition of power relay is fed back into data processing unit；
The data communication unit can be connect with background monitoring system, and data are adjusted in uploading operation data or reception；
The alarm output unit receives the indicator that data processing unit is sent out, and passes through acousto-optic and hard contact output device
Work state information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554989.9A CN108599112A (en) | 2018-06-01 | 2018-06-01 | A kind of tripping coil driving circuit protective relaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554989.9A CN108599112A (en) | 2018-06-01 | 2018-06-01 | A kind of tripping coil driving circuit protective relaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108599112A true CN108599112A (en) | 2018-09-28 |
Family
ID=63630650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554989.9A Pending CN108599112A (en) | 2018-06-01 | 2018-06-01 | A kind of tripping coil driving circuit protective relaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108599112A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
| CN105098735A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Breaking-closing coil protection device |
| CN105281301A (en) * | 2015-11-20 | 2016-01-27 | 国网浙江省电力公司文成县供电公司 | Switch electromagnet coil protection device |
| JP2017220983A (en) * | 2016-06-03 | 2017-12-14 | 株式会社巧電社 | Line monitoring device for power line |
-
2018
- 2018-06-01 CN CN201810554989.9A patent/CN108599112A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
| CN105098735A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Breaking-closing coil protection device |
| CN105281301A (en) * | 2015-11-20 | 2016-01-27 | 国网浙江省电力公司文成县供电公司 | Switch electromagnet coil protection device |
| JP2017220983A (en) * | 2016-06-03 | 2017-12-14 | 株式会社巧電社 | Line monitoring device for power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |
|
| RJ01 | Rejection of invention patent application after publication |