CN106443294B - The intake circuit method of calibration and equipment of transforming plant protecting device secondary circuit - Google Patents
The intake circuit method of calibration and equipment of transforming plant protecting device secondary circuit Download PDFInfo
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- CN106443294B CN106443294B CN201610671860.7A CN201610671860A CN106443294B CN 106443294 B CN106443294 B CN 106443294B CN 201610671860 A CN201610671860 A CN 201610671860A CN 106443294 B CN106443294 B CN 106443294B
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- 230000001131 transforming effect Effects 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 100
- 238000002955 isolation Methods 0.000 claims abstract description 24
- 230000001960 triggered effect Effects 0.000 claims abstract description 11
- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a kind of intake circuit method of calibration of transforming plant protecting device secondary circuit and equipment; the method of calibration includes: configuration step: carrying out the grouping of intake circuit by function; and light-coupled isolation element is sealed in every group of each circuit; the first end of the isolated loop of light-coupled isolation element secondary side is common end, and second end is the monitoring terminal in each circuit；Monitoring step: applying specific electric current, voltage signal to protection equipment using relay protection experimental instrument device, and the level signal that signal generator is generated is passed to common end, while monitoring the on-off model triggered on multiple monitoring terminals；And display step: by the on off operating mode in one group of a plurality of circuit real-time display on the visual interface in checking procedure.According to the present invention, the verification in one group of a plurality of circuit only needs that each circuit is connected one by one by external dosage checking procedure can be completed, and verifying work efficiency greatly improves, check results visualization, and improves the reliability of check results.
Description
Technical field
The present invention relates to a kind of intake circuit method of calibration of transforming plant protecting device secondary circuit and equipment.
Background technique
Currently, the substation of domestic central and west regions is traditional substation mostly, each protection is connected by hardwire and is set
Standby, information exchange between constitution equipment secondary circuit.
In equipment acceptance and annual test working stage, relay protection maintenance personnel be often used multimeter to the correctness of secondary circuit into
Row verification, to avoid the malfunction or tripping because of primary equipment caused by loop fault.
The verifying work of secondary circuit first carries out circuit grouping by function, then verifies respectively to each group circuit.Power transformation
Secondary circuit of standing by its functional characteristic can be divided into the amount of outputing circuit and intake circuit.Verifying work mainly verifies the only of each circuit
Vertical property and integrality.Wherein, independence refers to that misconnection does not occur, is shorted for circuit, i.e., this loop signal will not seal in adjacent loop；It is complete
Whole property refers to that broken string does not occur, virtual connection, misses for circuit, that is, guarantees that this loop signal is correctly transferred to corresponding secondary device.
When being verified using multimeter to secondary circuit, have the following problems:
1) measurement process is very complicated
2) verifying work takes a long time
It is both needed to carry out protection dosage by testing equipment due to measuring every time, and links up the rank for completing each link by group member
It connects, so the working time sharply increases with the increase of equipment feeder number.
3) test process fault tolerant rate is low
Testing crew verifies the state in each circuit using multimeter manually, may occur in the contact process of test pencil and terminal
Virtual connection or misconnection phenomenon.And be both needed to carry out dosage by test apparatus due to measuring it every time, so entire measurement process is one
It is a that there is repeatability and intermittent work, it is easy to cause mistake to take terminal, and then influence test result.
4) test result is difficult to save
In traditional verifying work, by the state in circuit generally pass through multimeter on-off shelves buzzing and voltage gear it is instantaneous
Display is drawn a conclusion, and needs recorder's spirit high concentration in entire interminable test process.
Summary of the invention
The purpose of the present invention is to provide a kind of intake circuit method of calibration of transforming plant protecting device secondary circuit, with
Promote the working efficiency of intake circuit verification.
The object of the invention is also to provide a kind of intake circuit calibration equipment of transforming plant protecting device secondary circuit,
To promote the verifying work efficiency in intake circuit.
For this purpose, one aspect of the present invention provides a kind of intake circuit verification side of transforming plant protecting device secondary circuit
Method, comprising: configuration step: intake circuit is grouped according to return circuit, and seals in optocoupler in every group of each circuit
Isolation element, the first end of the isolated loop of the light-coupled isolation element secondary side are common end, and second end is the prison in each circuit
Survey terminal；Monitoring step: specific electric current, voltage signal are applied to protection equipment using relay protection experimental instrument device, by signal
The level signal that generator generates is passed to the common end of the isolated loop, while monitoring and triggering on multiple monitoring terminals
On-off model；And display step: in checking procedure that the on off operating mode in one group of a plurality of circuit is real-time on the visual interface
Display, wherein using the on-off model triggered on the multiple monitoring terminal as the on off operating mode in one group of a plurality of circuit.
Further, above-mentioned monitoring step further includes time of the on-off model triggered on the multiple monitoring terminals of real-time monitoring
Number.
Further, above-mentioned intake circuit method of calibration further include: alarming step: real-time judge works as the multiple monitoring
The alarm of circuit independence is executed comprising the monitoring side period of the day from 11 p.m. to 1 a.m that on-off model number is greater than the set value in terminal；Add one by one in circuit
Judge that the monitoring side period of the day from 11 p.m. to 1 a.m for being less than the setting value comprising on-off model number in the multiple monitoring terminal is held after the completion of amount
The alarm of row circuit integrality.
Further, above-mentioned display step further includes during dosage one by one by the on off operating mode in one group of a plurality of circuit
Number real-time display on the visual interface, wherein using the number of the on-off model triggered on the multiple monitoring terminal as
The number of the on off operating mode in one group of a plurality of circuit.
Further, the time of measuring in above-mentioned every circuit is less than or equal to 10ms.
According to another aspect of the present invention, a kind of calibration equipment of transforming plant protecting device secondary circuit is provided, is used for
Implement the intake circuit method of calibration according to transforming plant protecting device secondary circuit described above, comprising: light-coupled isolation
Module, including multiple isolated locations, each isolated location include concatenation circuit and the isolated loop of Phototube Coupling, a plurality of described
Concatenation circuit is concatenated respectively to one group of a plurality of circuit；Switching value monitoring modular, including public terminal and mutually independent multiple prisons
Survey terminal, wherein the public terminal is connect with the first end of a plurality of isolated loop, and the multiple monitoring terminal is for supervising
On-off model is surveyed, the switching value monitoring modular is also used to convert message for the on-off model of the multiple monitoring terminal
It is uploaded to host computer；Signal generator, for applying signal voltage to the public terminal of switching value monitoring modular；Upper service
Device for by the packet parsing being the on-off model of the multiple monitoring terminal, and monitors opening for terminal for the multiple
Pass amount signal is shown on the visual interface as the on off operating mode in one group of a plurality of circuit.
Further, above-mentioned upper server is also used to time of the on-off model to monitoring terminals multiple in history message
Number is counted.
Further, above-mentioned calibration equipment further includes alarm module, wherein the upper server is used for real-time judge institute
The monitoring terminal for being greater than setting number in multiple monitoring terminals with the presence or absence of on-off model is stated, if then by the alarm module
Execute the alarm of circuit independence；And for judging to whether there is in the multiple monitoring terminal after the completion of the dosage one by one of circuit
If on-off model is less than the monitoring terminal of setting number, then by alarm module execution circuit integrality alarm.
Further, above-mentioned switching value monitoring modular further includes carrying out Phototube Coupling respectively to the multiple monitoring terminal
Light-coupled isolation module.
Further, above-mentioned switching value monitoring modular further includes the RS485 communication module with the upper server communication.
Method of calibration according to the present invention, seals in light-coupled isolation element in one group of a plurality of circuit first, while from optocoupler
Isolation element secondary side monitor it is all monitoring terminals on-off models, one group of a plurality of circuit need to only be made by dosage each circuit according to
Electrification checking procedure can be completed in secondary conducting, and compared with artificial multimeter verification mode, working efficiency is greatly improved, check results
Visualization.Apply voltage signal by monitoring switch amount signal and in public terminal, avoids the unrelated electromagnetic signal in working site
Interference to monitoring signals improves verification reliability.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the intake circuit method of calibration of transforming plant protecting device secondary circuit according to an embodiment of the invention
Flow chart；
Fig. 2 is the intake circuit method of calibration of transforming plant protecting device secondary circuit according to another embodiment of the present invention
Flow chart；
Fig. 3 is the chart of the on off operating mode in one group of a plurality of circuit that method of calibration according to the present invention obtains；
Fig. 4 is the framework signal of the intake circuit calibration equipment of transforming plant protecting device secondary circuit according to the present invention
Figure；And
Fig. 5 is the signal of the closing loop of the PCS-222B verified using intake method of calibration of the invention
Figure.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 to Fig. 5 shows some implementations of the method for calibration of transforming plant protecting device secondary circuit according to the present invention
Example.
As shown in figures 1 and 3, the intake circuit method of calibration of transforming plant protecting device secondary circuit includes following step
It is rapid:
Configuration step S11: intake circuit is grouped according to return circuit, and seals in light in every group of each circuit
Coupling isolation element, the first end of the isolated loop of the light-coupled isolation element secondary side are common end, and second end is each circuit
Monitor terminal；
Monitoring step S13: applying specific electric current, voltage signal to protection equipment using relay protection experimental instrument device, will
The level signal that signal generator generates is passed to the common end of the isolated loop, while monitoring and touching on multiple monitoring terminals
The on-off model of hair；And
Show step S15: as shown in figure 3, by the on off operating mode in one group of a plurality of circuit in visual interface in checking procedure
Upper real-time display, wherein using the on-off model triggered on the multiple monitoring terminal as the logical of one group of a plurality of circuit
Disconnected state.
Method of calibration according to the present invention, seals in light-coupled isolation element in one group of a plurality of circuit first, while from optocoupler
Isolation element secondary side monitor it is all monitoring terminals on-off models, one group of a plurality of circuit need to only be made by dosage each circuit according to
Electrification checking procedure can be completed in secondary conducting, and compared with artificial multimeter verification mode, working efficiency is greatly improved, check results
Visualization.Apply voltage signal by monitoring switch amount signal and in public terminal, avoids the unrelated electromagnetic signal in working site
Interference to monitoring signals improves verification reliability.
In one embodiment, as shown in Fig. 2, intake circuit method of calibration includes:
Configuration step S21: intake circuit is grouped according to return circuit, and seals in light in every group of each circuit
Coupling isolation element, the first end of the isolated loop of the light-coupled isolation element secondary side are common end, and second end is each circuit
Monitor terminal；
Monitoring step S23: applying specific electric current, voltage signal to protection equipment using relay protection experimental instrument device, will
The level signal that signal generator generates is passed to the common end of the isolated loop, while monitoring and touching on multiple monitoring terminals
The on-off model of hair and the number of statistic switch amount signal；And
Show step S25: by the on off operating mode in one group of a plurality of circuit real-time display on the visual interface in checking procedure,
Wherein, using the on-off model triggered on the multiple monitoring terminal as the on off operating mode in one group of a plurality of circuit；
Alarming step S27: whether it is greater than comprising on-off model number in the multiple monitoring terminal of real-time judge and sets
Value (usually 1 time, in some special cases setting value be 2 times or repeatedly) monitoring terminal, if so, execute circuit independence
Alarm；Judge whether to be less than comprising on-off model number in the multiple monitoring terminal after the completion of the dosage one by one of circuit and set
The monitoring terminal of the monitoring terminal of value, if so, executing the alarm of circuit integrality.
According to the verification mode of artificial multimeter, needs to pay close attention to dosage equipment when measurement every time and that circuit is added
Amount could so obtain the integrality in this circuit and the check information of independence, and verification speed is slow, and (spirit needs large labor intensity
High concentration is easily tired out)；Method of calibration according to the present invention, the on-off model of real-time judge monitoring terminal in checking procedure
Number, if more than setting value such as 1 execute circuit independence alarm, dosage one by one verification after the completion of judge each monitoring side
The number of the on-off model of son, if being less than setting value, such as number is 0, then the alarm of circuit integrality is executed, every time when verification
Dosage is carried out to that circuit without paying close attention to dosage equipment, only each circuit need to be made to sequentially turn on to by dosage, verification speed
Degree is fast, and labor intensity reduces.
In one embodiment, above-mentioned display step is applied not only to the display of the on off operating mode in one group of a plurality of circuit, is also used to
The display of the number of on off operating mode, wherein using the number of the on-off model triggered on the multiple monitoring terminal as described in
The number of the on off operating mode in one group of a plurality of circuit.In the present embodiment, the number of the on off operating mode in one group of a plurality of circuit is also shown,
Qualitative for loop fault has obvious reference role.
In one embodiment, the time of measuring in every circuit is 10ms, and voltage signal is the voltage signal of single amplitude, example
Such as 5V.
In one embodiment, configuration step further includes selecting special verification object, and display step further includes special according to selection
Whether different verification object, be normally carried out judgement to each circuit, and show whether each circuit normal accordingly, to avoid circuit on-off and
The artificial erroneous judgement at scene is verified caused by circuit is extremely inconsistent.
The present invention gives the calibration equipment for implementing above-mentioned method of calibration, as shown in figure 4, the calibration equipment packet
Include: light-coupled isolation module 10, including multiple isolated locations, each isolated location include Phototube Coupling concatenation circuit 11 and every
From circuit 12, a plurality of concatenation circuit 11 is concatenated respectively to one group of a plurality of circuit；Switching value monitoring modular 20, including common end
Sub and mutually independent multiple monitoring terminals, wherein the public terminal is connect with the first end of a plurality of isolated loop, institute
Multiple monitoring terminals are stated for monitoring switch amount signal, the switching value monitoring modular is also used to the multiple monitoring terminal
On-off model is converted into message and is uploaded to host computer；Signal generator 30, for the public terminal to switching value monitoring modular
Apply signal voltage；Upper server 40, for being the on-off model of the multiple monitoring terminal by the packet parsing, and
The on-off model of the multiple monitoring terminal is shown on the visual interface as the on off operating mode in one group of a plurality of circuit.
Calibration equipment according to the present invention first seals in light-coupled isolation element in verification circuit, while monitoring all monitorings
The on-off model of terminal, one group of a plurality of circuit need to only be such that each circuit sequentially turns on by dosage can be completed checking procedure, with
Artificial multimeter verification mode is compared, and working efficiency greatly improves, check results visualization.By monitoring switch amount signal and
Public terminal applies voltage signal, avoids interference of the unrelated electromagnetic signal in working site to monitoring signals, improves verification knot
The reliability of fruit.Dosage is carried out to that circuit without paying close attention to dosage equipment when verification every time, it only need to dosage be one by one to circuit
Can, verification speed is fast, and labor intensity reduces.
In one embodiment, above-mentioned calibration equipment further includes alarm module, wherein the upper server for sentencing in real time
Break the multiple monitoring terminal for monitoring and being greater than the set value (such as 1 time) in terminal with the presence or absence of on-off model number, if
Independence alarm in circuit is then executed by the alarm module；And for judging the multiple prison after the completion of the dosage one by one of circuit
If survey terminal in the presence or absence of on-off model number be 0 monitoring terminal, then by the alarm module execute circuit it is complete
Property alarm.Calibration equipment according to the present invention, it can be achieved that loop fault quick positioning.
In one embodiment, above-mentioned switching value monitoring modular further includes communicating with the RS485 of the upper server communication
Module.In the present embodiment, using RS485 communication module transmitting message, the reliable transmitting data under forceful electric power magnetic environment is met
Needs.
In one embodiment, above-mentioned switching value monitoring modular further include the multiple monitoring terminal is carried out respectively photoelectricity every
From light-coupled isolation module.
Intake method of calibration of the invention and device are illustrated by taking the closing loop of PCS-222B as an example below.
Whether intake circuit receives the contact point signal of other equipment, and act in this, as this equipment respective logic module
Foundation.Due to industrial manufacturer's standard require using contact point signal equipment provide ring current, so, such circuit need to ±
It is verified under 110 direct current electrical environments.
By taking the first group of trip(ping) circuit of A phase as an example, as shown in figure 5, illustrating that secondary circuit calibration equipment is returned in measurement intake
Test procedure in the verification of road:
1) non-three phase hard pressing plate is exited, investment ABC three-phase breaker tripping and closing export GOOSE soft pressing plate, hard pressing plate.
2) in mechanism case, the terminal in Fig. 4 is unlocked.
3) light-coupled isolation element is sealed between each outlet loop, output is connected on switching value monitoring modular.It is filled from protection
Simulation specific fault conditions are added in terminal electric current, voltage signal are set, device is made to send out A phase single-hop signal.It is monitored using switching value
The break-make situation in each circuit of module check illustrates corresponding circuit if there are also its cocircuit bright lights in addition to A phase trips outlet loop
Between there are parasitic loops.
4) after finishing the verification of all circuits according to the above method, exit the output clamping in all circuits, respectively hair " three jump " and
Three-phase reclosing command verifies the correctness of pressing plate.If secondary circuit is not turned at this time, illustrate that pressing plate function is normal.
In conclusion with the increase of measurement circuit quantity, the advantage using calibration equipment of the invention is bigger.Assuming that certain
Secondary device has N outlet loop, then can estimate the overall measurement number of outlet loop according to above-mentioned test procedure at this time, will
It is compared with the measurement method of multimeter is used, and result is as follows:
| Project | It is measured using multimeter | It is measured using multiloop calibration equipment |
| Pendulous frequency | N(N+3)/2 | N+1 |
| Expend the time | T*[N(N+3)/2] | T0+T1*(N+1) |
In upper table, T is to measure time used, about 30s before improving every time；T0 is connecing using secondary circuit calibration equipment
Line time, about 300s；T1 is about 15s the time required to being measured every time using secondary circuit calibration equipment.
It can be seen that (N+1)/2+10 < N (N+3)/2 uses verification when the outlet loop number of bus protection is greater than 5
Device ratio is more efficient using multimeter, more saves the time using multiloop calibration equipment at this time.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of intake circuit method of calibration of transforming plant protecting device secondary circuit, which comprises the following steps:
Configuration step: intake circuit is grouped according to return circuit, and seals in light-coupled isolation in every group of each circuit
Element, the first end of the isolated loop of the light-coupled isolation element secondary side are common end, and second end is the monitoring side in each circuit
Son；
Monitoring step: specific electric current, voltage signal are applied to protection equipment using relay protection experimental instrument device, signal is occurred
The level signal that device generates is passed to the common end of the isolated loop, while monitoring the switch triggered on multiple monitoring terminals
Signal is measured, the monitoring step further includes the number of the on-off model triggered on the multiple monitoring terminals of real-time monitoring；And
Show step: by the on off operating mode in one group of a plurality of circuit real-time display on the visual interface in checking procedure, wherein will
On off operating mode of the on-off model triggered on the multiple monitoring terminal as one group of a plurality of circuit,
Further include alarming step: real-time judge includes what on-off model number was greater than the set value when the multiple monitor in terminal
The monitoring side period of the day from 11 p.m. to 1 a.m executes the alarm of circuit independence；Judged in the multiple monitoring terminal after the completion of the dosage one by one of circuit comprising opening
Measure the monitoring side period of the day from 11 p.m. to 1 a.m execution circuit integrality alarm that signal number is less than the setting value in pass.
2. the intake circuit method of calibration of transforming plant protecting device secondary circuit according to claim 1, feature exist
In the display step further includes by the number of the on off operating mode in one group of a plurality of circuit during dosage one by one in visual interface
Upper real-time display, wherein using the number of on-off model triggered on the multiple monitoring terminal as described one group a plurality of time
The number of the on off operating mode on road.
3. the intake circuit method of calibration of transforming plant protecting device secondary circuit according to claim 1, feature exist
In the time of measuring in every circuit is less than or equal to 10ms.
4. a kind of calibration equipment of transforming plant protecting device secondary circuit, for implementing according to claim 1 to any one of 3 institutes
The intake circuit method of calibration for the transforming plant protecting device secondary circuit stated characterized by comprising
Light-coupled isolation module, including multiple isolated locations, each isolated location include concatenation circuit and the isolation of light-coupled isolation
Circuit, a plurality of concatenation circuit are concatenated respectively to one group of a plurality of circuit；
Switching value monitoring modular, including public terminal and mutually independent multiple monitoring terminals, wherein the public terminal and more
The first end of isolated loop described in item connects, and the multiple monitoring terminal is used for monitoring switch amount signal, the switching value monitoring
Module, which is also used to convert message for the on-off model of the multiple monitoring terminal, is uploaded to host computer；
Signal generator, for applying signal voltage to the public terminal of switching value monitoring modular；And
Upper server, for being the on-off model of the multiple monitoring terminal by the packet parsing, and will be the multiple
Monitoring terminal on-off model shown on the visual interface as the on off operating mode in one group of a plurality of circuit, the upper server
It is also used to count the number of the on-off model of monitoring terminals multiple in history message；It further include alarm module, wherein
The upper server is for being greater than setting number with the presence or absence of on-off model in the multiple monitoring terminal of real-time judge
Terminal is monitored, if then executing the alarm of circuit independence by the alarm module；And it is used for after the completion of the dosage one by one of circuit
If judging to be less than the monitoring terminal of setting number, then by the report with the presence or absence of on-off model in the multiple monitoring terminal
Alert module executes the alarm of circuit integrality.
5. the calibration equipment of transforming plant protecting device secondary circuit according to claim 4, which is characterized in that the switch
Amount monitoring modular further includes the light-coupled isolation module for carrying out Phototube Coupling respectively to the multiple monitoring terminal.
6. the calibration equipment of transforming plant protecting device secondary circuit according to claim 4, which is characterized in that the switch
Amount monitoring modular further includes the RS485 communication module with the upper server communication.
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| CN108802598A (en) * | 2018-05-29 | 2018-11-13 | 国网河南省电力公司检修公司 | A kind of 1000 kilovolts of extra-high voltage series compensation protection exit loop test methods |
| CN113884787A (en) * | 2021-09-08 | 2022-01-04 | 武汉中元华电电力设备有限公司 | Intelligent oscillograph tripping and closing verification function test method and system |
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