CN107748277A - A kind of programmable automatic connection device for protection simulation test - Google Patents
A kind of programmable automatic connection device for protection simulation test Download PDFInfo
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- CN107748277A CN107748277A CN201710835450.6A CN201710835450A CN107748277A CN 107748277 A CN107748277 A CN 107748277A CN 201710835450 A CN201710835450 A CN 201710835450A CN 107748277 A CN107748277 A CN 107748277A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of programmable automatic connection device for protection simulation test, including programmable control fabrication, PLC technology card control is connected with analog channel selection loop, opens into channel selecting loop and output channel selecting loop；The one end in analog channel selection loop is used for the analog quantity terminals that control selections connect the analog quantity terminals of the first protection device to be measured and the second protection device to be measured, the other end is used for connecting test instrument；The one end opened into channel selecting loop is used for control selections the first protection device to be measured of connection and opening for the second protection device to be measured is opened into terminals into terminals, the other end for connecting test instrument；Output channel selecting loop one end be used for control selections connect the first protection device to be measured and the second protection device to be measured output terminals, the other end is used for connecting test instrument outputs terminals.Automatic connecting process of the invention by programmable control fabrication realization device, test Wiring step is simplified, and it is not error-prone.
Description
Technical field
The present invention relates to a kind of programmable automatic connection device for protection simulation test, belongs to power system relay guarantor
Protect technical field of measurement and test.
Background technology
With greatly developing for power system, the performance of protective relaying device is directly connected to the security of substation operation
And reliability, therefore the performance test to protective relaying device is more and more important.Tested currently for protective relaying device, market
Upper most way is that device is tested one by one by the artificial mode of connection, often tests a device, it is necessary to take by hand
Build connection circuit once, connect power amplifier case once by hand, cumbersome, easily error, and electrically knowing for tester
Know level of skill also to there are certain requirements, when particularly relay protection site is tested, air plug terminal connections are complicated, what wiring consumed
Time occupies significant proportion.Sum it up, traditional test mode of connection efficiency is low, reliability is not high, therefore there is an urgent need to
The problem of wiring is inefficient when a kind of termination is to improve protective relaying device test.
The content of the invention
It is an object of the invention to provide a kind of programmable automatic connection device for protection simulation test, for solving mesh
Preceding protective relaying device tests the problem of wiring is cumbersome and error-prone.
In order to solve the above technical problems, the invention provides a kind of programmable automatic connection dress for protection simulation test
Put, including programmable control fabrication, analog channel select loop, open into channel selecting loop and output channel selecting loop, it is described
PLC technology card control connects the analog channel selection loop, opens into channel selecting loop and output channel selecting loop；
The one end in the analog channel selection loop is used for control selections and connects the first protection device to be measured and the second protection device to be measured
Analog quantity terminals, the other end be used for connecting test instrument analog quantity terminals；It is described to open one end into channel selecting loop
The first protection device to be measured is connected for control selections and opening for the second protection device to be measured is used to connect into terminals, the other end
Tester is opened into terminals；Described one end for outputing channel selecting loop is used for control selections and connects the first protection device to be measured
With second protection device to be measured output terminals, the other end is used for connecting test instrument and outputs terminals.
Further, the analog channel selection loop includes first passage selection control loop and first passage selection master
Loop；The first passage selection control loop includes the first light-coupled isolation module, and the PLC technology card control connects institute
The primary side loop of the first light-coupled isolation module is stated, string is provided with the first relay in the secondary loop of the first light-coupled isolation module
Coil；One end of the first passage selection major loop is used to select the first protection device to be measured of connection and the second protection to be measured
Analog quantity terminals, the other end of device are used for the analog quantity terminals of connecting test instrument, and the hilted broadsword of first relay is double
Throw switch string is located in the first passage selection major loop.
Further, described open includes second channel selection control loop and second channel selection master into channel selecting loop
Loop；The second channel selection control loop includes the second light-coupled isolation module, and the PLC technology card control connects institute
The primary side loop of the second light-coupled isolation module is stated, string is provided with the second relay in the secondary loop of the second light-coupled isolation module
Coil；One end of the second channel selection major loop is used to select the first protection device to be measured of connection and the second protection to be measured
Opening for device is opened into terminals into terminals, the other end for connecting test instrument, and the single-pole double throw of second relay is opened
String is closed to be located in the second channel selection major loop.
Further, the channel selecting loop of outputing includes third channel selection control loop and third channel selection master
Loop, the third channel selection control loop include the 3rd light-coupled isolation module, and the PLC technology card control connects institute
The primary side loop of the 3rd light-coupled isolation module is stated, string is provided with the 3rd relay in the secondary loop of the 3rd light-coupled isolation module
Coil；One end of the third channel selection major loop is used to select the first protection device to be measured of connection and the second protection to be measured
Device output terminals, the other end is used for connecting test instrument and outputs terminals, the single-pole double throw of the 3rd relay opens
String is closed to be located in the third channel selection major loop.
Further, is additionally provided between the single-pole double-throw switch (SPDT) of the 3rd relay and the first protection device to be measured
Four light-coupled isolation modules, the 5th is additionally provided between the single-pole double-throw switch (SPDT) of the 3rd relay and the second protection device to be measured
Light-coupled isolation module.
Further, the third channel selection major loop also includes the first bypass nonlinear resistance and the second bypass is non-thread
Property resistance；One end ground connection of the first bypass nonlinear resistance, other end connection third channel selection major loop are used for and the
The connection end of one protection device connection to be measured；One end ground connection of the second bypass nonlinear resistance, other end connection threeway
Road selection major loop is used for the connection end being connected with the second protection device to be measured.
The beneficial effects of the invention are as follows：
According to the type of protection device to be tested, programmable output control scheme is customized, passes through PLC technology control
Molding intends channel selecting loop, opens and is filled into channel selecting loop with outputing channel selecting loop choice and connect protection to be tested
Put, by fixed terminal analog quantity, input and output amount, connection is output in the respective terminal of protection device automatically, realizes device
Automatic connecting process, not only simplify test Wiring step, save the testing time, improve testing efficiency, and avoid
The problem of easy error, substantially increase the automaticity of emulation testing.
In order to prevent current open, third channel selection major loop is respectively used to treat with the first protection device to be measured and second
Each bypass nonlinear resistance in parallel in connection end of protection device connection is surveyed, when the voltage of third channel selection major loop is just
Resistive impedance is higher when in normal scope, third channel selection major loop normal operation；When the voltage of third channel selection major loop
During more than current open, resistive impedance is greatly reduced immediately, third channel is selected major loop short circuit, so can effectively prevent
Current open.
Brief description of the drawings
Fig. 1 is wiring schematic diagram of the protection device in test process；
Fig. 2 is the circuit structure diagram of the programmable automatic connection device of the present invention；
Fig. 3 is the emulation testing flow chart of protection device.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing and specific implementation
The present invention will be described in further detail for example.
As shown in figure 1, during the emulation testing of protection device, may be programmed automatic connection device 2 with tester 1 and by
Protection device A and B is surveyed to be attached.Programmable automatic connection device is divided into three regions, divided according to the type of transmission signal
Not Wei analog signal transmission region, open into signal transmission region and output signal transmission region.Programmable automatic connection device leads to
Cross client cables to be attached the signal source of input and tester, three major types grafting is divided into by cable inside device
Plate, inside cable link information are as shown in Figure 2.
Programmable automatic connection device includes programmable control fabrication, analog channel selection loop, opened into channel selecting loop
With output channel selecting loop, programmable control fabrication (programmable input and output control card) control connection analog channel selects back
Road, open into channel selecting loop and output channel selecting loop.One end control selections connection first in analog channel selection loop
The analog quantity wiring of the protection device B to be measured of protection device A and second to be measured analog quantity terminals, other end connecting test instrument
End；One end control selections opened into channel selecting loop connect opening for the first protection device B to be measured of protection device A and second to be measured
Enter terminals, other end connecting test instrument is opened into terminals；Output one end control selections connection first in channel selecting loop
Protection device B to be measured of protection device A and second to be measured output terminals, the other end is used for connecting test instrument and outputs wiring
End.
Wherein, programmable control fabrication is that have multichannel address wire and 64 I/O buses of data wire, is divided into control inside it
Register section, control program conservation zone and controller state read area, this three pieces are respectively completed to register progress high-low-position reading
Write, protective relaying device control program to be tested is preserved, protective relaying device output valve to be tested is read.For all
The mode of connection, all it is stored in the wired data storehouse in control program conservation zone.I/O read write commands are in programmable control fabrication
Optionally, programmable control fabrication sets corresponding position to send control command during test, according to the high low potential of corresponding position come realize after
The interface selection of electrical protective device.For example, programmable control fabrication internal data position can be realized pair by set or " 0 " position
Open into, output the selection of interface.
In the present embodiment, the output interface that may be programmed automatic connection device is all the unified aviation plug interface of standard,
The output end of one air plug terminal may guide the heterogeneity interface of different protection devices into, therefore protection device to be measured is connect
Mouth is all unified, and interface is connected in tested device.During test, all air plug terminals can be connect by plugboard in a position-stable manner
Onto protective relaying device to be measured, different types of protective relaying device realizes control by different input and output control programs
System, the signal quantity that programmable automatic connection control card exports each current potential simultaneously switch over amplification, protective relaying device with can
Signal wiring between programming automatic connection device carries out, to a mapping, finally realizing programmable automatic connection.
Because each protective relaying device mode of connection is different, tripping operation outlet, signal open into and analog input have
May be different, it is necessary to which the signal wiring between measurand and automatic connection device is entered when changing tested protection device object
Row is to a mapping.Programmable control fabrication automatically selects correct interface data collection and drives analog channel selection loop, opens into logical
Road selects loop and outputs the switching device in channel selecting loop, can be achieved correctly to believe between termination and measurand
Number to a wiring.
Specifically, as shown in Fig. 2 analog channel selection loop includes first passage selection control loop and first passage choosing
Select major loop, wherein first passage selection control loop includes the first light-coupled isolation module, and PLC technology card control connects the
The primary side loop of one light-coupled isolation module, line of the string provided with the first relay J1 in the secondary loop of the first light-coupled isolation module
Circle.It is one end the first protection device A and second to be measured of selection connection protection device B to be measured of first passage selection major loop, another
Connecting test instrument 1 is held, the first relay J1 single-pole double-throw switch (SPDT) string is located in first passage selection major loop, first passage choosing
Select single-pole double-throw switch (SPDT) selection connection first to be measured protection device A and second to be measured protection of the major loop by the first relay J1
Device B.Identical with analog channel selection loop due to opening the circuit structure into channel selecting loop, here is omitted.
Outputing channel selecting loop includes third channel selection control loop and third channel selection major loop, third channel
Selection control loop includes the 3rd light-coupled isolation module, and the primary side that PLC technology card control connects the 3rd light-coupled isolation module is returned
Road, coil of the string provided with the 3rd relay J3 in the secondary loop of the 3rd light-coupled isolation module.Third channel selection major loop
The first protection device A and second to be measured of one end selection connection protection device B to be measured, other end connecting test instrument 1, the 3rd relay
J3 single-pole double-throw switch (SPDT) string is located at third channel selection major loop, and third channel selection major loop passes through the 3rd relay J3's
The first protection device B to be measured of protection device A and second to be measured of single-pole double-throw switch (SPDT) selection connection.
In addition, it is additionally provided with the 4th between the 3rd relay J3 single-pole double-throw switch (SPDT) and the first protection device A to be measured
Light-coupled isolation module, the primary side loop of the 4th light-coupled isolation module connect the 3rd relay J3 single-pole double-throw switch (SPDT), the 4th light
The secondary loop of coupling isolation module connects the first protection device A to be measured and outputs 1 terminals.In the 3rd relay J3 single-pole double throw
The 5th light-coupled isolation module is additionally provided between switch and the second protection device B to be measured, the primary side of the 5th light-coupled isolation module is returned
Road connects the 3rd relay J3 single-pole double-throw switch (SPDT), the protection dress to be measured of secondary loop connection second of the 5th light-coupled isolation module
Put B and output 1 terminals.
By taking input analog amount as an example, programmable control fabrication corresponds to analog quantity channel when being high level, the first light-coupled isolation mould
Block is in the conduction state, and now the first relay J1 of the first light-coupled isolation module secondary is accordingly connected and is output to protection device A
Ia ends；When it is low level that programming Control card, which corresponds to analog quantity channel, the first light-coupled isolation module is off, now
First relay J1 of the first light-coupled isolation module secondary accordingly connects the Ia ends for being output to protection device B.Open into passage and mould
The switching principle of analog quantity passage design is the same, and when being received for the amount of outputing signal, when PLC technology holding is " 1 "
When, protection device A, which outputs 1 output and outputs value, to be incorporated into tester, and when control card is set to " 0 ", protection device B outputs 1
Output is outputed value and is incorporated into tester.
In order to prevent current open, third channel selection major loop also includes the first bypass nonlinear resistance R4By second
The non-linear electric R in road5, R4And R5It can be specifically lightning arrester block；First bypass nonlinear resistance R4One end ground connection, the other end connect
Connect the connection end that third channel selection major loop is used to be connected with the first protection device to be measured.Second bypass nonlinear resistance R5's
One end ground connection, other end connection third channel selection major loop are used for the connection end being connected with the second protection device to be measured.When
Resistive impedance is higher when the voltage of triple channel selection major loop is in normal range (NR), third channel selection major loop normal operation；
When the voltage of third channel selection major loop exceedes current open, resistive impedance is greatly reduced immediately, selects third channel
Major loop short circuit, it so can effectively prevent current open.
Performance test of the above-mentioned programming automatic connection device to a variety of protective relaying devices is all suitable for, to it is a kind of it is new after
When electrical protective device is tested, can be needed according to test successively it is split enter, output, the passage such as optical fiber carries out wiring design, most
Link information is protected after being attached eventually by PLC technology card, is truly realized programmable automatic connection, its work
Make process as shown in figure 3, specifically including following steps：
Automatic connection device determines the model of protection device to be detected first, and wired data storehouse is true according to protection device type
Determine protection device connection plan；Then automatic connection device is compiled according to connection plan using programmable control fabrication to current potential
Volume, the selection of control circuit is realized, realizes automatic connection；Tester control signal starts dosage test, and test is simultaneously automatic
Termination can also receive each port feedback signal；Final system wait judges whether to need to change protection to be measured after being completed
Device, changes protection device to be measured if desired, and automatic connection device selects correctly to connect further according to device model from internal memory
Line scheme re-starts internal connection；If necessary to change protection device to be measured, test is wholly off.Software control centre will divide
The result automatic printing of analysis preserves, and whole test terminates.
The programmable automatic connection device for being used for protection simulation test of the present invention relies on channel switching technology, may be programmed
Control technology and the anti-open loop techniques of electric current, for protection device to be tested, programmable output control scheme is customized, will be connect automatically
The original terminal analog quantity of line apparatus, input and output amount are connected automatically in the respective terminal of protection device；Towards various models
Protection device, can adaptively define the automatic connection that connection plan realizes protection test, while scheme can be solidified
Preserve to realize the reuse of connection plan, whole testing process can be saved to 1/3rd time, greatly reduced
Wiring workload during test, improve the automaticity of emulation testing.
Claims (6)
1. a kind of programmable automatic connection device for protection simulation test, it is characterised in that including programmable control fabrication, mould
Intend channel selecting loop, open into channel selecting loop and output channel selecting loop, the PLC technology card control connects institute
Analog channel selection loop is stated, opens into channel selecting loop and outputs channel selecting loop；The analog channel selection loop
One end is used for control selections and connects the analog quantity terminals of the first protection device to be measured and the second protection device to be measured, other end use
In the analog quantity terminals of connecting test instrument；It is first to be measured that described one end opened into channel selecting loop is used for control selections connection
Protection device and opening for the second protection device to be measured are opened into terminals into terminals, the other end for connecting test instrument；It is described
The one end for outputing channel selecting loop is used for control selections and connects opening for the first protection device to be measured and the second protection device to be measured
Go out terminals, the other end outputs terminals for connecting test instrument.
2. the programmable automatic connection device according to claim 1 for protection simulation test, it is characterised in that described
Analog channel selection loop includes first passage selection control loop and first passage selection major loop；The first passage selection
Control loop includes the first light-coupled isolation module, and the PLC technology card control connects the original of the first light-coupled isolation module
Side loop, coil of the string provided with the first relay in the secondary loop of the first light-coupled isolation module；The first passage choosing
The one end for selecting major loop is used to selecting analog quantity terminals of the first protection device to be measured of connection and the second protection device to be measured, another
One end is used for the analog quantity terminals of connecting test instrument, and the single-pole double-throw switch (SPDT) string of first relay is located at described first and led to
In road selection major loop.
3. the programmable automatic connection device according to claim 2 for protection simulation test, it is characterised in that described
Open includes second channel selection control loop and second channel selection major loop into channel selecting loop；The second channel selection
Control loop includes the second light-coupled isolation module, and the PLC technology card control connects the original of the second light-coupled isolation module
Side loop, coil of the string provided with the second relay in the secondary loop of the second light-coupled isolation module；The second channel choosing
The one end for selecting major loop is used to selecting the opening into terminals, another of the first protection device to be measured of connection and the second protection device to be measured
Opening into terminals for connecting test instrument is held, the single-pole double-throw switch (SPDT) string of second relay is located at the second channel choosing
Select in major loop.
4. the programmable automatic connection device according to claim 3 for protection simulation test, it is characterised in that described
Outputing channel selecting loop includes third channel selection control loop and third channel selection major loop, the third channel selection
Control loop includes the 3rd light-coupled isolation module, and the PLC technology card control connects the original of the 3rd light-coupled isolation module
Side loop, coil of the string provided with the 3rd relay in the secondary loop of the 3rd light-coupled isolation module；The third channel choosing
What the one end for selecting major loop was used to selecting the first protection device to be measured of connection and the second protection device to be measured outputs terminals, another
The terminals of outputing for connecting test instrument are held, the single-pole double-throw switch (SPDT) string of the 3rd relay is located at the third channel choosing
Select in major loop.
5. the programmable automatic connection device according to claim 4 for protection simulation test, it is characterised in that described
It is additionally provided with the 4th light-coupled isolation module between the single-pole double-throw switch (SPDT) of 3rd relay and the first protection device to be measured, described
The 5th light-coupled isolation module is additionally provided between the single-pole double-throw switch (SPDT) of three relays and the second protection device to be measured.
6. the programmable automatic connection device for being used for protection simulation test according to claim 4 or 5, it is characterised in that
The third channel selection major loop also includes the first bypass nonlinear resistance and the second bypass nonlinear resistance；By in the of described first
One end ground connection of road nonlinear resistance, other end connection third channel selection major loop are used to be connected with the first protection device to be measured
Connection end；It is described second bypass nonlinear resistance one end ground connection, the other end connection third channel selection major loop be used for
The connection end of second protection device connection to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835450.6A CN107748277A (en) | 2017-09-15 | 2017-09-15 | A kind of programmable automatic connection device for protection simulation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835450.6A CN107748277A (en) | 2017-09-15 | 2017-09-15 | A kind of programmable automatic connection device for protection simulation test |
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| Publication Number | Publication Date |
|---|---|
| CN107748277A true CN107748277A (en) | 2018-03-02 |
Family
ID=61255872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710835450.6A Pending CN107748277A (en) | 2017-09-15 | 2017-09-15 | A kind of programmable automatic connection device for protection simulation test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872822A (en) * | 2017-02-13 | 2017-06-20 | 国网上海市电力公司 | A kind of Auto-Test System of relay protection repair based on condition of component |
| CN110208641A (en) * | 2019-07-01 | 2019-09-06 | 云南电力技术有限责任公司 | Power distribution network ring network cabinet route installs auxiliary system and method |
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| CN102879663A (en) * | 2012-05-15 | 2013-01-16 | 许继集团有限公司 | Relay protection device automatic testing system and testing tool special for same |
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| CN203117323U (en) * | 2013-01-23 | 2013-08-07 | 南京因泰莱配电自动化设备有限公司 | Relay protection logic testing device |
| CN106124888A (en) * | 2016-06-15 | 2016-11-16 | 珠海科众技术有限公司 | The full-automatic adjustment method of a kind of microcomputer protective relay device and system |
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| CN101632851A (en) * | 2009-08-06 | 2010-01-27 | 戴维逊磁疗技术（厦门）有限公司 | Intelligent control device of thyristor |
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Application publication date: 20180302 |
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