CN103929245B - The test method of work of switching-over light path interface agency of protective relaying device - Google Patents
The test method of work of switching-over light path interface agency of protective relaying device Download PDFInfo
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- CN103929245B CN103929245B CN201410132503.4A CN201410132503A CN103929245B CN 103929245 B CN103929245 B CN 103929245B CN 201410132503 A CN201410132503 A CN 201410132503A CN 103929245 B CN103929245 B CN 103929245B
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Abstract
nullThe present invention relates to the method for work of the test switching-over light path interface agency of a kind of protective relaying device，The power end of the control module of switching-over light path interface agency is connected with controlling power supply、Input is connected with button switching switch、Output is connected with driving module，Light path handover module includes two light magnetic switches、Four send optical fiber interface and four reception optical fiber interfaces，The output driving module is connected with the control end of two light magnetic switches respectively，Input and the output of two light magnetic switches send optical fiber interface with corresponding、Reception optical fiber interface connects，The control signal of the light path handover module of correspondence conducting is provided by control module，Got final product and protective relaying device by changeable optical-path interface mechanism、Light power meter or Optical attenuator connect，Light path by driving module drive light path handover module to carry out multiplex roles switches again，Normal running status can be entered and enter protection test and the test mode of optical-fibre channel test.
Description
The application is Application No.: 201010502186.2, and invention and created name is the " optical-fibre channel of protective relaying device
Switching-over light path interface agency is used in test ", filing date: the divisional application of the application for a patent for invention on September 29th, 2010.
Technical field
The present invention relates to the method for work of the optical path switching interface mechanism for fiber channel test of a kind of protective relaying device,
Belong to protective relaying device technical field.
Background technology
Secondary device in power system is for being monitored the work of primary equipment, control, regulate, protect and be
Run, attendant provides operating condition or produces the low voltage electrical equipment needed for command signal, and relay protection mechanism is weight
The secondary loop in power system equipment wanted.Along with intelligent substation and the progressively popularization of intelligent grid, its traditional cable communication
Mode is replaced by optic fiber beam sensor mode.The protection of 220kV and above optical-fibre channel is in protective calibration is tested and measures
During luminous power, need frequently to be mounted and dismounted from protective relaying device by fiber cable joint, therefore easily lead to optical cable and connect
The abrasion of mouth and optical fiber interface contact surface attenuation increase, thus affect the accuracy of protective relaying device verification, even due to light
Cable interface damages, and brings hidden danger to the safe and reliable operation of power circuit main protection.
And the protection device verification that current optical fiber protecting equipment both domestic and external runs for scene, especially optical-fibre channel
Verification not yet has standard and perfect checking process.
Summary of the invention
It is an object of the invention to provide a kind of in the case of the optical fiber interface that need not dismount protective relaying device, pass through multiplex roles
Light path switching, can complete protection test and optical-fibre channel test job protective relaying device fiber channel test switch
The method of work of optical-path interface mechanism.
The present invention is that the technical scheme reaching above-mentioned purpose is: provide the test switching-over light path of a kind of protective relaying device
The method of work of interface agency, described optical path switching interface mechanism for fiber channel test includes: hood and be arranged on hood
Interior control module, driving module and light path handover module, described control module is complicated programmable logic device, controls mould
The power end of block is connected with controlling power supply, the input of control module and the running status being arranged on hood panel and test shape
The button switching switch of state connects, and the output of control module is connected with driving module, drives module to be made up of Darlington transistor, institute
The light path handover module stated includes that two light magnetic switches, four transmission optical fiber interfaces and four receive optical fiber interfaces, drives mould
The output of block control end with two light magnetic switches of light path handover module respectively is connected, and 2 × 2A/D magnetic selected by light magnetic switch
Photoswitch, two inputs of the first smooth magnetic switch Kl meet the first transmission optical fiber interface TX1 and the 3rd respectively and send optical fiber interface
TX3, two outputs of the first smooth magnetic switch Kl meet the second transmission optical fiber interface TX2 and the 4th respectively and send optical fiber interface TX4,
Two inputs of the second smooth magnetic switch K2 connect respectively the second reception optical fiber interface RX2 and the 3rd receive optical fiber interface RX3, second
Two outputs of light magnetic switch K2 meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4；Described driving
The external single driving power supply of module；Difference at each transmission optical fiber interface and each reception optical fiber interface it is positioned on described hood panel
Optical fiber interface indicator lamp group is installed, and the output of control module is connected with optical fiber interface indicator lamp group；
The method of work of this optical path switching interface mechanism for fiber channel test includes: respectively send during use optical fiber interface and
Receive optical fiber interface by two ends with the optical fiber of joint and the light on protective relaying device and light power meter or Optical attenuator
Fine interface connects；
Switched between " normal condition " and " test mode " by pressing button switching switch, adopted by control module
The input signal of the button switching switch on collection panel, after logical transition, by driving module to control two magneto-optic shutters
On and off thus carry out light path switching；
While completing light path switching, control module controls corresponding optical fiber interface indicator lamp and shows.
Further, when pressing the button switching switch and entering running status, signal is protected through this side of protective relaying device
Transmission anode TXa, first send optical fiber interface TX1, the second input IN2 of the first smooth magnetic switch Kl and the first output
After OUT1, the second transmission optical fiber interface TX2, access the reception negative terminal RXb of protective relaying device offside protection, through offside protection
Send negative terminal TXb, the second reception optical fiber interface RX2, enter the second input IN2 of the second smooth magnetic switch K2, the first output
OUT1, receives optical fiber interface RX1 by first and enters the reception anode RXa of this side protection, and now protective relaying device is just entering
Often run；
When pressing the button switching switch and entering test mode, switching-over light path passage, by external short fiber by the 4th
Send optical fiber interface TX4 and the 3rd and receive optical fiber interface RX3 connection, the transmission that now signal is protected through this side of protective relaying device
Anode TXa, first send optical fiber interface TX1, the second input IN2 of the first smooth magnetic switch Kl, the second output OUT2, the 4th
Send optical fiber interface TX4, the 3rd receive optical fiber interface RX3, enter the first input end IN1 of the second smooth magnetic switch K2, then through the
One output OUT1, receives optical fiber interface RX1 by first and enters the reception anode RXa of this protection side, side, carry out this side guarantor
Protect from ring；
When pressing the button switching switch and entering test mode, switching-over light path passage, its 4th transmission optical fiber interface TX4 connects
Light power meter, now signal through this protection side, side of protective relaying device transmission anode TXa, first send optical fiber interface
TX1, the second input IN2 of the first smooth magnetic switch Kl, then through the second output OUT2, the 4th transmission optical fiber interface TX4 and light
Power meter, can carry out the test of this side protection luminous power；
When pressing the button switching switch and entering test mode, switching-over light path passage, the 4th receives optical fiber interface RX4 connects light
Power meter, transmission negative terminal TXb that now signal is protected through protective relaying device offside, second receives optical fiber interface RX2, the second light
The second input IN2 of magnetic switch K2, Ran, through the second output OUT2, the 4th reception optical fiber interface RX4 and light power meter, are carried out
The test of offside protection luminous power；
When pressing the button switching switch and entering test mode, switching-over light path passage, Optical attenuator is connected on the 4th reception light
Fine interface RX4 and the 3rd receives between optical fiber interface RX3, and now signal is through the transmission of the offside protection side of protective relaying device
Negative terminal TXb, second receive optical fiber interface RX2, the second input IN2 of the second smooth magnetic switch K2, again through the second output OUT2,
4th receives optical fiber interface RX4, Optical attenuator, the 3rd reception optical fiber interface RX3, through the first input end of the second smooth magnetic switch K2
IN1, the first output OUT1, after receive optical fiber interface RX1 through first and enter the reception anode RXa of this side protection, lead to
The test of road surplus.
The switching-over light path interface agency of the application present invention includes control module, drives module and light path handover module, control
Molding block is CPLD, cheap, powerful, and control logic cocoa is any according to requirements customization.
Light path handover module of the present invention uses magneto-optic shutter and is connected with sending optical fiber interface and receiving optical fiber interface, it is achieved passive light is cut
Change, beneficially the high speed switching of light path, and magneto-optic shutter has, and time response is fast, switching time is short, it is little to be lost, light path character
Change little and control simple feature, the control signal of the light path handover module of correspondence conducting being provided by control module, then leads to
Module drive of overdriving light path handover module carries out the light path switching of multiplex roles.Due to the fact that without dismounting protective relaying device
On fiber cable joint, can be connected with protective relaying device, light power meter or Optical attenuator by changeable optical-path interface mechanism,
Switch through light path, normal running status can be entered and enter protection test and the test mode of optical-fibre channel test, solving
Loose contact problem that fibre-optical splice on protective relaying device of having determined frequently dismounts and causes and the problem that optical fiber interface damages are right
In raising scene protection verification and maintenance levels, there is important function.
Accompanying drawing explanation
Make further carefully to state in detail to embodiments of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the theory diagram of the present invention.
Fig. 3 is the electrical schematic diagram that the light path handover module of the present invention is protected with this side and tested protection is connected.
Wherein: 1-hood, 2-optical fiber interface indicator lamp group, 3-button switching switch, 4-status indicator lamp, 5-controls electricity
Source, 6-control module, 7-drives module, and 8-drives power supply, 9-light path handover module.
Detailed description of the invention
As shown in Fig. 1～3, the test of the protective relaying device of the present embodiment switching-over light path interface agency mechanism, including
Hood l and the control module 6 being arranged in hood l, driving module 7 and light path handover module 9, the control module 6 of the present invention
For complicated programmable logic device, this complicated programmable logic device uses altera corp to manufacture, by control module 6 to provide right
The switching signal of light path handover module 9 input that should turn on, the power end of control module 6 is connected with controlling power supply 5, this control electricity
DC24V is taked in source 5, and its power consumption is the smaller the better, the input of control module 6 and the running status installed on hood l panel and survey
Button switching switch 3 connection of examination state, this button switching switch 3 is to press at each, at " normal condition " and " test shape
State " between switch over, by control module 6 gather on panel button switching switch 3 input signal, through logical transition
After, by driving module 7 to control the on and off of two magneto-optic shutters, to reach the purpose of light path switching.As shown in Figure 2,
The output of control module 6 of the present invention is connected with driving module 7, drives module 7 to be made up of Darlington transistor, can use the one of routine
Level NPN Darlington triode, makes the base stage of Darlington triode connect the output of control module 6, and collector and emitter is respectively
Being connected with the input of two light magnetic switches of light path handover module 9, control module 6 drives two magneto-optics by driving module 7
The action of switch, the external single driving power supply 8 of driving module 7 of the present invention.Such as Fig. 2, shown in 3, the light path switching of the present invention
Module 9 includes at least two light magnetic switch, the transmission optical fiber interface of more than four and the reception optical fiber interface of more than four, should
Control module 6, driving module 7 and two light magnetic switches all weld on circuit boards, and circuit board passes through insulation board or insulating barrier
Being arranged in hood l, respectively transmission optical fiber interface and the reception optical fiber interface of the present invention can use a PC/FC fibre-optical splice, and divide
It is not fixed on the both sides of hood l, by two ends with optical fiber and the protective relaying device of joint and light power meter or light attenuation
Optical fiber interface on device connects, and reaches protection test and the purpose of optical-fibre channel test job.As shown in Figure 2, hood l of the present invention
Top be respectively equipped with power interface, serial communication interface and locking interface etc., drive the output of module 7 respectively with light path
The control end of two light magnetic switches of handover module 9 connects, and to control the action of each smooth magnetic switch respectively, light magnetic switch can be selected for
2 × 2A/D magneto-optic shutter, two inputs of the first smooth magnetic switch Kl connect the first transmission optical fiber interface TX1 and the 3rd transmission respectively
Optical fiber interface TX3, two outputs of the first smooth magnetic switch Kl meet the second transmission optical fiber interface TX2 and the 4th respectively and send optical fiber
Interface TX4；Two inputs of the second smooth magnetic switch K2 meet the second reception optical fiber interface RX2 and the 3rd respectively and receive optical fiber interface
RX3, two outputs of the second smooth magnetic switch K2 meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4,
During use, send optical fiber interface TX1 and first by first and receive the transmission of optical fiber interface RX1 and the protection of this side of protective relaying device
Anode TXa and reception anode RXa connects, and the second reception optical fiber interface RX2 and the second transmission optical fiber interface TX2 and offside are protected
Send negative terminal TXb and receive negative terminal RXb connection.
As shown in Figure 1, the test of the protective relaying device of the present embodiment with switching-over light path interface agency mechanism in hood l face
Plate is positioned at each transmission optical fiber interface and each reception optical fiber interface and is separately installed with each optical fiber interface indicator lamp, and control module 6
Output be connected with each optical fiber interface indicator lamp group 2, complete light path switching while, control module 6 controls corresponding light
Fine interface indicator shows.Status indicator lamp 4 and the state of test mode of running status it is also equipped with on same hood l panel
Indicator lamp 4, the output of same control module 6 is connected with each status indicator lamp 4, is pressing " normal condition " and " test mode "
Between switching time, shown the state of input signal by status indicator lamp 4.
As shown in Figure 3, when the test of the protective relaying device of the present embodiment is with switching-over light path interface agency mechanism's work, when
When pressing the button switching switch 3 entrance running status, transmission anode TXa that signal is protected through this side of protective relaying device, first
Transmission optical fiber interface TX1, the second input IN2 and the first output OUT1 of the first smooth magnetic switch Kl, the second transmission optical fiber connect
After mouthful TX2, access the reception negative terminal RXb of protective relaying device offside protection, through offside protection transmission negative terminal TXb, second connect
Receive optical fiber interface RX2, enter the second input IN2 of the second smooth magnetic switch K2, the first output OUT1, receive light by first
Fine interface RX1 enters the reception anode RXa of this side protection, and now protective relaying device enters properly functioning.
As shown in Figure 3, when the test of the protective relaying device of the present embodiment is with switching-over light path interface agency mechanism's work, when
When pressing the button switching switch 3 entrance test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber is connect
Mouthful TX4 receives optical fiber interface RX3 connection with the 3rd, transmission anode TXa that now signal is protected through this side of protective relaying device, the
One transmission optical fiber interface TX1, the second input IN2 of the first smooth magnetic switch Kl, the second output OUT2, the 4th transmission optical fiber connect
Mouth TX4, the 3rd reception optical fiber interface RX3, the first input end IN1 of entrance the second smooth magnetic switch K2, then through the first output
OUT1, receives optical fiber interface RX1 by first and enters the reception anode RXa of this protection side, side, carry out this side protection from ring.
As shown in Figure 3, when the test of the protective relaying device of the present embodiment is with switching-over light path interface agency mechanism's work, when
When pressing the button switching switch 3 entrance test mode, switching-over light path passage, its 4th transmission optical fiber interface TX4 connects light power meter,
Now signal through this protection side, side of protective relaying device transmission anode TXa, first send optical fiber interface TX1, the first light
The second input IN2 of magnetic switch Kl, then through the second output OUT2, the 4th transmission optical fiber interface TX4 and light power meter,
Carry out the test of this side protection luminous power.
As shown in Figure 3, when the test of the protective relaying device of the present embodiment is with switching-over light path interface agency mechanism's work, when
When pressing the button switching switch 3 entrance test mode, switching-over light path passage, the 4th receives optical fiber interface RX4 connects light power meter, this
Time signal protect through protective relaying device offside transmission negative terminal TXb, second receive optical fiber interface RX2, the second smooth magnetic switch K2
The second input IN2, slowly through the second output OUT2, the 4th receive optical fiber interface RX4 and light power meter, carry out offside protection
The test of luminous power.
As shown in Figure 3, when the test of the protective relaying device of the present embodiment is with switching-over light path interface agency mechanism's work, when
When pressing the button switching switch 3 entrance test mode, switching-over light path passage, Optical attenuator is connected on the 4th reception optical fiber interface RX4
With the 3rd receive between optical fiber interface RX3, now signal through the offside of protective relaying device protect side transmission negative terminal TXb,
Second receive optical fiber interface RX2, the second input IN2 of the second smooth magnetic switch K2, again through the second output OUT2, the 4th receive
Optical fiber interface RX4, Optical attenuator, the 3rd receive optical fiber interface RX3, through the second smooth magnetic switch K2 first input end IN1, first
Output OUT1, after receive optical fiber interface RX1 through first and enter the reception anode RXa of this side protection, carry out passage surplus
Test.
Claims (1)
1. the test method of work of switching-over light path interface agency of a protective relaying device, it is characterised in that described relay
The test switching-over light path interface agency of protection device includes: hood and be arranged in hood control module, drive module with
And light path handover module, described control module is complicated programmable logic device, and the power end of control module connects with controlling power supply
Connecing, the input of control module switches switch with the button of the running status being arranged on hood panel and test mode and is connected,
The output of control module is connected with driving module, drives module to be made up of Darlington transistor, and described light path handover module includes
Two light magnetic switches, four send optical fiber interfaces and four receive optical fiber interfaces, drive the output of module respectively with light path
The control end of two light magnetic switches of handover module connects, and light magnetic switch selects 2 × 2A/D magneto-optic shutter, the first smooth magnetic switch Kl
Two inputs connect respectively the first transmission optical fiber interface TX1 and the 3rd send optical fiber interface TX3, the two of the first smooth magnetic switch Kl
Individual output meets the second transmission optical fiber interface TX2 and the 4th respectively and sends optical fiber interface TX4, and two of the second smooth magnetic switch K2 defeated
Enter end and connect the second reception optical fiber interface RX2 and the 3rd reception optical fiber interface RX3, two outputs of the second smooth magnetic switch K2 respectively
Meet the first reception optical fiber interface RX1 and the 4th respectively and receive optical fiber interface RX4；The external single driving electricity of described driving module
Source；It is positioned on described hood panel at each transmission optical fiber interface and each reception optical fiber interface and is separately installed with optical fiber interface indicator lamp
Group, and the output of control module is connected with optical fiber interface indicator lamp group；
The method of work of the test switching-over light path interface agency of this protective relaying device includes: respectively send optical fiber interface during use
With receive optical fiber interface by two ends with on optical fiber and the protective relaying device of joint and light power meter or Optical attenuator
Optical fiber interface connects；
When pressing the button switching switch and entering running status, transmission anode TXa that signal is protected through this side of protective relaying device,
First sends optical fiber interface TX1, the second input IN2 and the first output OUT1 of the first smooth magnetic switch Kl, the second transmission light
After fine interface TX2, access the reception negative terminal RXb of protective relaying device offside protection, through offside protection transmission negative terminal TXb, the
Two receive optical fiber interface RX2, the entrance second input IN2 of the second smooth magnetic switch K2, the first output OUT1, connect by first
Receiving optical fiber interface RX1 and enter the reception anode RXa of this side protection, now protective relaying device enters properly functioning；
When pressing the button switching switch and entering test mode, switching-over light path passage, sent the 4th by external short fiber
Optical fiber interface TX4 and the 3rd receives optical fiber interface RX3 and connects, the transmission anode that now signal is protected through this side of protective relaying device
TXa, the first transmission optical fiber interface TX1, the second input IN2 of the first smooth magnetic switch Kl, the second output OUT2, the 4th transmission
Optical fiber interface TX4, the 3rd reception optical fiber interface RX3, the first input end IN1 of entrance the second smooth magnetic switch K2, more defeated through first
Go out to hold OUT1, receive optical fiber interface RX1 by first and enter the reception anode RXa of this protection side, side, carry out the protection of this side certainly
Ring；
When pressing the button switching switch and entering test mode, switching-over light path passage, its 4th transmission optical fiber interface TX4 connects light merit
Rate meter, now signal through this protection side, side of protective relaying device transmission anode TXa, first send optical fiber interface TX1, the
The second input IN2 of one smooth magnetic switch Kl, then through the second output OUT2, the 4th transmission optical fiber interface TX4 and light power meter,
The test of this side protection luminous power can be carried out；
When pressing the button switching switch and entering test mode, switching-over light path passage, the 4th receives optical fiber interface RX4 connects luminous power
Meter, transmission negative terminal TXb that now signal protect through protective relaying device offside, the second reception optical fiber interface RX2, second optomagnetic leaves
The second input IN2 of pass K2, Ran, through the second output OUT2, the 4th reception optical fiber interface RX4 and light power meter, carry out offside
The test of protection luminous power；
When pressing the button switching switch and entering test mode, switching-over light path passage, Optical attenuator is connected on the 4th reception optical fiber and connects
Mouth RX4 and the 3rd receives between optical fiber interface RX3, and now signal is through the transmission negative terminal of the offside protection side of protective relaying device
TXb, second receive optical fiber interface RX2, the second input IN2 of the second smooth magnetic switch K2, again through the second output OUT2, the 4th
Receive optical fiber interface RX4, Optical attenuator, the 3rd receive optical fiber interface RX3, through the second smooth magnetic switch K2 first input end IN1,
First output OUT1, after receive optical fiber interface RX1 through first and enter the reception anode RXa of this side protection, carry out more than passage
The test of amount；
While completing light path switching, control module controls corresponding optical fiber interface indicator lamp and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132503.4A CN103929245B (en) | 2010-09-29 | 2010-09-29 | The test method of work of switching-over light path interface agency of protective relaying device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132503.4A CN103929245B (en) | 2010-09-29 | 2010-09-29 | The test method of work of switching-over light path interface agency of protective relaying device |
| CN201010502186.2A CN101969341B (en) | 2010-09-29 | 2010-09-29 | Optical path switching interface mechanism for fiber channel test of relay protection device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010502186.2A Division CN101969341B (en) | 2010-09-29 | 2010-09-29 | Optical path switching interface mechanism for fiber channel test of relay protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103929245A CN103929245A (en) | 2014-07-16 |
| CN103929245B true CN103929245B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410132503.4A Active CN103929245B (en) | 2010-09-29 | 2010-09-29 | The test method of work of switching-over light path interface agency of protective relaying device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369642A (en) * | 1992-05-29 | 1994-11-29 | Nec Corporation | Switcher for redundant signal transmission system |
| CN1595764A (en) * | 2004-06-22 | 2005-03-16 | 北京四方继保自动化股份有限公司 | Swap-free optical fiber multiplexing apparatus for relaying protection |
| CN1909420A (en) * | 2005-08-01 | 2007-02-07 | 中兴通讯股份有限公司 | Optical switch reversing device for test of multiple light jaws equipment |
| CN201134808Y (en) * | 2007-11-30 | 2008-10-15 | 南京中德保护控制***有限公司 | Optical fiber channel simulation apparatus of circuit differential protection |
-
2010
- 2010-09-29 CN CN201410132503.4A patent/CN103929245B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369642A (en) * | 1992-05-29 | 1994-11-29 | Nec Corporation | Switcher for redundant signal transmission system |
| CN1595764A (en) * | 2004-06-22 | 2005-03-16 | 北京四方继保自动化股份有限公司 | Swap-free optical fiber multiplexing apparatus for relaying protection |
| CN1909420A (en) * | 2005-08-01 | 2007-02-07 | 中兴通讯股份有限公司 | Optical switch reversing device for test of multiple light jaws equipment |
| CN201134808Y (en) * | 2007-11-30 | 2008-10-15 | 南京中德保护控制***有限公司 | Optical fiber channel simulation apparatus of circuit differential protection |
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| Publication number | Publication date |
|---|---|
| CN103929245A (en) | 2014-07-16 |
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