CN105071889A - Line signal double-terminal transmission system between unattended substations - Google Patents
Line signal double-terminal transmission system between unattended substations Download PDFInfo
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- CN105071889A CN105071889A CN201510420141.3A CN201510420141A CN105071889A CN 105071889 A CN105071889 A CN 105071889A CN 201510420141 A CN201510420141 A CN 201510420141A CN 105071889 A CN105071889 A CN 105071889A
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- transformer station
- testing instrument
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Abstract
The invention provides a line signal double-terminal transmission system between unattended substations, and relates to the technical field of power signal transmission systems. The line signal double-terminal transmission system is characterized in that the line signal double-terminal transmission system comprises steps: confirming A line equipment, confirming B line equipment, connecting a satellite, confirming the line connection of an A substation, confirming the line connection of a B substation, and connecting two substations. According to the line signal double-terminal transmission system, the structure is reasonable, the operation is convenient, and channels can be effectively protected.
Description
Technical field:
The present invention relates to electric power signal transmission system technical field, be specifically related to line signal both-end transmission system between left unguarded transformer station.
Background technology:
Transformer station, changes the place of voltage.In order to the power delivery that power plant is sent is to place far away, voltage must be raised, become high-tension electricity, on demand voltage be reduced near user again, the work of this buck/boost has come by transformer station.The capital equipment of transformer station is switch and transformer.Different by scale, little is called electric substation.Transformer station is greater than electric substation.Electric substation: be generally the step-down substation of electric pressure at below 110KV; Transformer station: " boosting, the step-down " transformer station comprising various electric pressure.
Unattended substation is the operation and management mode of a kind of advanced person of transformer station.It refers to that, by automatic technologies such as microcomputer telecontrols, operator on duty obtains relevant information in the distance, and carries out control and management to the equipment operation of transformer station.
Summary of the invention:
Technical problem to be solved by this invention be to overcome existing technological deficiency provide a kind of rational in infrastructure, easy to operate, can line signal both-end transmission system between the left unguarded transformer station of available protecting passage.
Technical problem to be solved by this invention adopts following technical scheme to realize:
Between left unguarded transformer station, line signal both-end transmission system, is characterized in that: comprise the following steps,
Step one, determine that A circuit is equipped: at A transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 2, determine that B circuit is equipped: at B transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 3, connection satellite: the gps system in the gps system in A transformer station and B transformer station is all connected on satellite;
Step 4, determine that A substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 5, determine that B substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 6, connection Liang Ge transformer station: be connected by High Voltage Cable Transmission Lines bilateral between A transformer station with B transformer station, and the line protective devices of A transformer station are connected by high-frequency signal I/O alternately with the line protective devices of B transformer station;
Described host computer is remote control Circuits System;
Described GPS is made up of 24 geostationary satellites.
Beneficial effect of the present invention is: GPS of the present invention is made up of 24 geostationary satellites.After GPS has locked 4 satellite-signals wherein, just can position exactly and timing.GPS is per second sends the pulse signal of a high accuracy (1 μ S) covering the whole world, is called PPS (PulsePerSecond).Utilize receiver to carry out Control protection test apparatus at PPS and PPM (PulsePerMinute) signal that the integral point moment that is per second, per minute sends, the signal synchronism output such as analog quantity and switching value of multiple stage test apparatus can be realized.
Accompanying drawing illustrates:
Fig. 1 is connection diagram of the present invention.
Embodiment:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, between left unguarded transformer station, line signal both-end transmission system, is characterized in that: comprise the following steps,
Step one, determine that A circuit is equipped: at A transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 2, determine that B circuit is equipped: at B transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 3, connection satellite: the gps system in the gps system in A transformer station and B transformer station is all connected on satellite;
Step 4, determine that A substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 5, determine that B substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 6, connection Liang Ge transformer station: be connected by High Voltage Cable Transmission Lines bilateral between A transformer station with B transformer station, and the line protective devices of A transformer station are connected by high-frequency signal I/O alternately with the line protective devices of B transformer station;
Described host computer is remote control Circuits System;
Described GPS is made up of 24 geostationary satellites.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (3)
1. line signal both-end transmission system between left unguarded transformer station, is characterized in that: comprise the following steps,
Step one, determine that A circuit is equipped: at A transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 2, determine that B circuit is equipped: at B transformer station built-in protective tester, and on relay testing instrument, gps system is installed, relay testing instrument connects host computer, hookup wire line protection device on relay testing instrument;
Step 3, connection satellite: the gps system in the gps system in A transformer station and B transformer station is all connected on satellite;
Step 4, determine that A substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 5, determine that B substation line connects: relay testing instrument and host computer form bilateral by communication cable and transmit, gps system connects relay testing instrument by 1PPM/1PPS, and relay testing instrument is by 3V/3I trip signal connection line protective device;
Step 6, connection Liang Ge transformer station: be connected by High Voltage Cable Transmission Lines bilateral between A transformer station with B transformer station, and the line protective devices of A transformer station are connected by high-frequency signal I/O alternately with the line protective devices of B transformer station.
2. line signal both-end transmission system between left unguarded transformer station according to claim 1, is characterized in that: described host computer is remote control Circuits System.
3. line signal both-end transmission system between left unguarded transformer station according to claim 1, is characterized in that: described GPS is made up of 24 geostationary satellites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420141.3A CN105071889A (en) | 2015-07-15 | 2015-07-15 | Line signal double-terminal transmission system between unattended substations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420141.3A CN105071889A (en) | 2015-07-15 | 2015-07-15 | Line signal double-terminal transmission system between unattended substations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105071889A true CN105071889A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510420141.3A Pending CN105071889A (en) | 2015-07-15 | 2015-07-15 | Line signal double-terminal transmission system between unattended substations |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569659A (en) * | 2014-12-17 | 2015-04-29 | 国家电网公司 | Line main protection double-end debugging system and control method thereof |
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2015
- 2015-07-15 CN CN201510420141.3A patent/CN105071889A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569659A (en) * | 2014-12-17 | 2015-04-29 | 国家电网公司 | Line main protection double-end debugging system and control method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |