CN201821353U - Optical path switcher - Google Patents
Optical path switcher Download PDFInfo
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- CN201821353U CN201821353U CN2010205549614U CN201020554961U CN201821353U CN 201821353 U CN201821353 U CN 201821353U CN 2010205549614 U CN2010205549614 U CN 2010205549614U CN 201020554961 U CN201020554961 U CN 201020554961U CN 201821353 U CN201821353 U CN 201821353U
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- optical fiber
- fiber interface
- switch
- light path
- control module
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- 230000003287 optical effect Effects 0.000 title abstract description 10
- 239000013307 optical fiber Substances 0.000 claims abstract description 99
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 description 17
- 238000012795 verification Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010034719 Personality change Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to an optical path switcher. The power source terminal of a control module is connected with a control power supply, the input terminal of the control module is connected with a button change-over switch, and the output terminal is connected with a Darington tube driver module; the optical path switcher comprises at least two magneto-optical switches, more than four transmitting optical fiber interfaces and more than four receiving optical fiber interfaces, the output terminal of the Darington tube driver module is respectively connected with the control ends of the two magneto-optical switches, the two input terminals of a first magneto-optical switch K1 are respectively connected with a first transmitting optical fiber interface TX1 and a third transmitting optical fiber interfaces TX3, the two output terminals of the first magneto-optical switch K1 are respectively connected with a second transmitting optical fiber interface TX2 and a fourth transmitting optical fiber interfaces TX4, the two input terminals of a second magneto-optical switch K2 are respectively connected with a second receiving optical fiber interface RX2 and a third receiving optical fiber interface RX3, the two output terminals of the second magneto-optical switch K2 are respectively connected with a first receiving optical fiber interface RX1 and a fourth receiving optical fiber interface RX4. The experiment protection and testing work of an optical fiber channel can be finished through multi-interface optical path switchover.
Description
Technical field
The utility model relates to a kind of light path switch, belongs to the protective relaying device technical field of measurement and test.
Background technology
Secondary device in the electric power system is used for the work of primary equipment is monitored, controls, regulates, protected and for operation, attendant provide operating condition or produce the required low voltage electrical equipment of command signal, and relaying protection mechanism is important secondary loop in power system equipment.Along with the progressively popularization of intelligent substation and intelligent grid, its traditional cable communication mode is replaced by the optical fiber and digital communication mode.When the protection of 220kV and above optical-fibre channel reaches measuring light power in protection verification test; need frequently fiber cable joint to be mounted and dismounted from protective relaying device; therefore be easy to cause the wearing and tearing of optical cable interface and optical fiber interface contact-making surface attenuation to increase; thereby influence the accuracy of protective relaying device verification; even, bring hidden danger for the safe and reliable operation of power circuit main protection because the optical cable interface damages.
And present optical fiber protecting equipment both domestic and external does not have standard and perfect checking process as yet for the verification of protective device verification, the especially optical-fibre channel of scene operation.
Summary of the invention
It is a kind of under the optical fiber interface situation without the dismounting protective relaying device that the purpose of this utility model provides, and switches by the light path of many interfaces, can finish the light path switch of protection test and optical-fibre channel test job.
The utility model is that the technical scheme that achieves the above object is: a kind of light path switch, it is characterized in that: comprise hood and be installed in the interior control module of hood, Darlington transistor driver module and light path handover module, described control module is a complicated programmable logic device, the power end of control module is connected with the control power supply, the input of control module be installed in the hood panel on running status and the knob diverter switch of test mode be connected, the output of control module is connected with the Darlington transistor driver module, described light path handover module comprises at least two optomagnetic switches, transmission optical fiber interface more than four and the reception optical fiber interface more than four, the output of Darlington transistor driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, two inputs of the first optomagnetic K switch 1 connect first respectively and send optical fiber interface TX1 and the 3rd transmission optical fiber interface TX3, two outputs of the first optomagnetic K switch 1 connect second respectively and send optical fiber interface TX2 and the 4th transmission optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 connect second respectively and receive optical fiber interface RX2 and the 3rd reception optical fiber interface RX3, and two outputs of the second optomagnetic K switch 2 connect first respectively and receive optical fiber interface RX1 and the 4th reception optical fiber interface RX3.
Wherein: the external independent driving power of described Darlington transistor driver module.
Described hood faceplate sends optical fiber interface and with each reception optical fiber interface place optical fiber interface indicator light group is installed respectively in each, and the output of control module is connected with optical fiber interface indicator light group.
The status indicator lamp of running status and the status indicator lamp of test mode also are installed on the described hood panel, and the output of control module is connected with status indicator lamp.
But the light path switch that the utility model adopts control module, Darlington transistor driver module and light path handover module to constitute, this control module is a complicated programmable logic device, therefore have cheap, powerful, and the control logic advantage that can customize arbitrarily as requested.The utility model light path handover module adopts magneto-optic shutter and a plurality of transmission optical fiber interface to be connected with a plurality of reception optical fiber interfaces, the realization passive light is switched, the high speed that helps light path is switched, and magneto-optic shutter have time response fast, switching time is short, loss is little, light path character changes little and the control characteristic of simple, provide the control signal of the light path handover module of corresponding conducting by control module, drive by the Darlington transistor driver module again and carried out pilosity since the magneto-optic shutter of light path handover module and send the light path of interface and receiving interface to switch.The utility model is owing to the fiber cable joint that need not on the dismounting protective relaying device; can be connected with protective relaying device, light power meter or Optical attenuator by light path switch of the present utility model; switch through different light paths; can enter normal running status and enter protection test and the test mode of optical-fibre channel test; the problem that loose contact problem that has solved the frequent dismounting of optical fiber splice on the former protective relaying device and caused and optical fiber interface damage has important function for improving scene protection verification and maintenance levels.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is done further in detail carefully to state.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a theory diagram of the present utility model.
Fig. 3 electrical schematic diagram that to be light path handover module of the present utility model be connected with tested protection with the protection of this side.
Wherein: the 1-hood, 2-optical fiber interface indicator light group, 3-knob diverter switch, the 4-status indicator lamp, 5-controls power supply, 6-control module, 7-Darlington transistor driver module, 8-driving power, 9-light path handover module.
Embodiment
See shown in Fig. 1～3, light path switch of the present utility model, comprise hood 1 and the control module 6 that is installed in the hood 1, Darlington transistor driver module 7 and light path handover module 9, control module 6 of the present utility model is a complicated programmable logic device, this complicated programmable logic device adopts altera corp to make, by the switching signal of control module 6 with light path handover module 9 input that corresponding conducting is provided, the power end of control module 6 is connected with control power supply 5, this control power supply 5 is taked DC24V, its power consumption is the smaller the better, the input of control module 6 with hood 1 panel is installed on running status and the knob diverter switch 3 of test mode be connected, this knob diverter switch 3 is to press at each, between " normal condition " and " test mode ", switch, gather the input signal of the knob diverter switch 3 on the panel by control module 6, through after the logical transition, the conducting by two magneto-optic shutters of Darlington transistor driver module 7 controls or close is to reach the purpose that light path is switched.See shown in Figure 2, the output of the utility model control module 6 is connected with Darlington transistor driver module 7, this Darlington transistor driver module 7 can adopt conventional one-level NPN Darlington triode, the base stage of Darlington triode connects the output of control module 6, its collector and emitter is connected with the input of two optomagnetic switches of light path handover module 9 respectively, drive the action of two magneto-optic shutters respectively by Darlington transistor driver module 7, control module 6 is by the action of two magneto-optic shutters of Darlington driver module 7 drivings, Darlington transistor driver module 7 external independent driving powers 8 of the present utility model.See Fig. 2; shown in 3; light path handover module 9 of the present utility model comprises at least two optomagnetic switches; transmission optical fiber interface more than four and the reception optical fiber interface more than four; this control module 6; Darlington transistor driver module 7 and two optomagnetic switches all are welded on the circuit board; and circuit board is installed in the hood 1 by insulating barrier or insulation board; the utility model respectively sends optical fiber interface and receives optical fiber interface and can adopt conventional PC/FC optical fiber splice; and be separately fixed at the both sides of hood 1; have the optical fiber of joint by two ends and be connected, reach the purpose of protection test and optical-fibre channel test job with optical fiber interface on protective relaying device and light power meter or the Optical attenuator.See shown in Figure 2, the top of the utility model hood 1 is respectively equipped with power interface, serial communication interface and locking interface etc., the output of Darlington transistor driver module 7 is connected with the control end of two optomagnetic switches of light path handover module 9 respectively, to control the action of each optomagnetic switch respectively, optomagnetic switch of the present utility model can be selected 2 * 2A/D magneto-optic shutter for use, two inputs of the first optomagnetic K switch 1 connect first respectively and send optical fiber interface TX1 and the 3rd transmission optical fiber interface TX3, and two outputs of the first optomagnetic K switch 1 connect second respectively and send optical fiber interface TX2 and the 4th transmission optical fiber interface TX4; Two inputs of the second optomagnetic K switch 2 connect second respectively and receive optical fiber interface RX2 and the 3rd reception optical fiber interface RX3, and two outputs of the second optomagnetic K switch 2 connect first respectively and receive optical fiber interface RX1 and the 4th reception optical fiber interface RX4.During use; the first transmission optical fiber interface TX1 and first is received optical fiber interface RX1 protect the transmission anode TXa of a side to be connected with reception anode RXa with this side of protective relaying device, the second reception optical fiber interface RX2 and second sends optical fiber interface TX2 and protects the transmission negative terminal TXb of a side to be connected with reception negative terminal RXb with offside.
See shown in Figure 1, the utility model is positioned at hood 1 panel and respectively sends optical fiber interface and each and receive optical fiber interface place each optical fiber interface indicator light is installed respectively, and the output of control module 6 is connected with each optical fiber interface indicator light group 2, when finishing the light path switching, the corresponding optical fiber interface indicator light of control module 6 controls shows.On same hood 1 panel status indicator lamp 4 of running status and the status indicator lamp 4 of test mode are installed also, the output of same control module 6 is connected with each status indicator lamp 4, pressing when switching between " normal condition " and " test mode ", showing the state of input signal by status indicator lamp 4.
See shown in Figure 3; during the utility model work; when pressing knob diverter switch 3 and enter running status; signal is protected the transmission anode TXa of a side through this side of protective relaying device; first sends optical fiber interface TX1; the second input IN2 of the first optomagnetic K switch 1 and the first output OUT1; behind the second transmission optical fiber interface TX2; insert the receipts negative terminal RXb of the offside protection of protective relaying device; transmission negative terminal TXb through the offside protection; second receives optical fiber interface RX2; enter the second input IN2 of the second optomagnetic K switch 2; the first output OUT1; first receives the reception anode RXa that optical fiber interface RX1 enters the protection of this side, and this moment, protective relaying device entered normal operation.
See shown in Figure 3; during the utility model work; when pressing knob diverter switch 3 and enter test mode; the switching-over light path passage; by external short fiber the 4th transmission optical fiber interface TX4 and the 3rd being received optical fiber interface RX3 is connected; the transmission anode TXa that this moment, signal was protected through this side of protective relaying device; first sends optical fiber interface TX1; the second input IN2 of the first optomagnetic K switch 1 and the second output OUT2; the 4th sends optical fiber interface TX4; the 3rd receives optical fiber interface RX3; enter the first input end IN1 of the second optomagnetic K switch 2; the first output OUT1; receive optical fiber interface RX1 by first and enter the reception anode RXa that this side is protected, carry out the protection of this side from ring.
See shown in Figure 3; during the utility model work; when pressing knob diverter switch 3 and enter test mode; the switching-over light path passage; its the 4th transmission optical fiber interface TX4 connects light power meter; the transmission anode TXa, first that this moment, signal was protected through this side of protective relaying device sends the second input IN2, the second output OUT2 of optical fiber interface TX1, the first optomagnetic K switch 1, sends optical fiber interface TX4 through the 4th again and inserts light power meter, can carry out the test of this side protection luminous power.
See shown in Figure 3; during the utility model work; when pressing knob diverter switch 3 and enter test mode; the switching-over light path passage; the 4th receives optical fiber interface RX4 connects light power meter; the transmission negative terminal TXb that this moment, signal was protected through the protective relaying device offside, second receives the second input IN2, the second output OUT2 of optical fiber interface RX2, the second optomagnetic K switch 2, again through the 4th reception optical fiber interface RX4 and light power meter, carries out the test of offside protection luminous power.
See shown in Figure 3; during the utility model work; when pressing knob diverter switch 3 and enter test mode; the switching-over light path passage; Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3; this moment, signal was protected the transmission negative terminal TXb of a side through the protective relaying device offside; second receives optical fiber interface RX2; the second input IN2 of the second optomagnetic K switch 2; the second output OUT2; receive optical fiber interface RX4 through the 4th; Optical attenuator; the 3rd receives the first input end IN1 of the optical fiber interface RX3 and the second optomagnetic K switch 2; the first output OUT1; after first receive the reception anode RXa that optical fiber interface RX1 enters the protection of this side, carry out the test of passage surplus.
Claims (4)
1. light path switch, it is characterized in that: comprise hood and be installed in the interior control module of hood, Darlington transistor driver module and light path handover module, described control module is a complicated programmable logic device, the power end of control module is connected with the control power supply, the input of control module be installed in the hood panel on running status and the knob diverter switch of test mode be connected, the output of control module is connected with the Darlington transistor driver module, described light path handover module comprises at least two optomagnetic switches, transmission optical fiber interface more than four and the reception optical fiber interface more than four, the output of Darlington transistor driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, two inputs of the first optomagnetic K switch 1 connect first respectively and send optical fiber interface TX1 and the 3rd transmission optical fiber interface TX3, two outputs of the first optomagnetic K switch 1 connect second respectively and send optical fiber interface TX2 and the 4th transmission optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 connect second respectively and receive optical fiber interface RX2 and the 3rd reception optical fiber interface RX3, and two outputs of the second optomagnetic K switch 2 connect first respectively and receive optical fiber interface RX1 and the 4th reception optical fiber interface RX3.
2. light path switch according to claim 1 is characterized in that: the external independent driving power of described Darlington transistor driver module.
3. light path switch according to claim 1, it is characterized in that: described hood faceplate sends optical fiber interface and with each reception optical fiber interface place optical fiber interface indicator light group is installed respectively in each, and the output of control module is connected with optical fiber interface indicator light group.
4. light path switch according to claim 1 is characterized in that: the status indicator lamp of running status and the status indicator lamp of test mode also are installed on the described hood panel, and the output of control module is connected with status indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549614U CN201821353U (en) | 2010-09-29 | 2010-09-29 | Optical path switcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549614U CN201821353U (en) | 2010-09-29 | 2010-09-29 | Optical path switcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821353U true CN201821353U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205549614U Expired - Fee Related CN201821353U (en) | 2010-09-29 | 2010-09-29 | Optical path switcher |
Country Status (1)
| Country | Link |
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| CN (1) | CN201821353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969341A (en) * | 2010-09-29 | 2011-02-09 | 江苏省电力公司常州供电公司 | Optical path switching interface mechanism for fiber channel test of relay protection device |
| CN106230498A (en) * | 2016-09-28 | 2016-12-14 | 国家电网公司 | Optical-fibre channel switching device |
-
2010
- 2010-09-29 CN CN2010205549614U patent/CN201821353U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969341A (en) * | 2010-09-29 | 2011-02-09 | 江苏省电力公司常州供电公司 | Optical path switching interface mechanism for fiber channel test of relay protection device |
| CN101969341B (en) * | 2010-09-29 | 2014-04-16 | 江苏省电力公司常州供电公司 | Optical path switching interface mechanism for fiber channel test of relay protection device |
| CN106230498A (en) * | 2016-09-28 | 2016-12-14 | 国家电网公司 | Optical-fibre channel switching device |
| CN106230498B (en) * | 2016-09-28 | 2018-11-16 | 国家电网公司 | Optical-fibre channel switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20120925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120925 Address after: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Patentee after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Patentee before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |