CN112491065A - Phase-splitting phase-finding device - Google Patents

Phase-splitting phase-finding device Download PDF

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Publication number
CN112491065A
CN112491065A CN202011123789.1A CN202011123789A CN112491065A CN 112491065 A CN112491065 A CN 112491065A CN 202011123789 A CN202011123789 A CN 202011123789A CN 112491065 A CN112491065 A CN 112491065A
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China
Prior art keywords
signal
phase
module
output end
signal output
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Pending
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CN202011123789.1A
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Chinese (zh)
Inventor
谢菲
项斌
张举刚
方继明
黎旭权
代峥嵘
裴杰
张鄂黔
戴湘岳
喻群
刘雪莹
杨思宇
杨习冰
王磊
王龙
郑文
颜世强
邓华
张旭
沈正康
杨小军
王志甫
赵胜
杨锴
刘佳
杨昌碑
方曦
李姜娴
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN202011123789.1A priority Critical patent/CN112491065A/en
Publication of CN112491065A publication Critical patent/CN112491065A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/26Arrangements for eliminating or reducing asymmetry in polyphase networks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50Arrangements for eliminating or reducing asymmetry in polyphase networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention discloses a phase-splitting phase-finding device, which comprises a signal oscillator and a phase-finding device, wherein the signal output end of the phase-finding device is in signal connection with the signal connection end of the signal oscillator, the signal output end of the signal oscillator is connected with the wire port of an A-phase cable, and the signal output end of the signal oscillator is connected with the wire port of a B-phase cable; the invention solves the problem of phase checking errors caused by large number of distribution transformers, insufficient personnel allocation and careless work of each power supply station, and can effectively prevent the phase checking errors from occurring through the phase checking device.

Description

Phase-splitting phase-finding device
Technical Field
The invention relates to the technical field of power line operation and maintenance equipment, in particular to a phase-splitting phase-finding device.
Background
During daily operation of the distribution transformer, the conditions of three-phase unbalance of loads, single-phase or two-phase heavy overload, low voltage and the like can occur. The distribution transformer operates in a heavy overload and three-phase imbalance state for a long time, so that the distribution transformer is damaged, and the power supply quality of a user is reduced. The distribution transformation effect is mainly reflected in that: (1) when the distribution transformer is in overload operation, the copper loss is in direct proportion to the square of the load current, and the copper loss is increased quickly along with the increase of the load, so that the efficiency of the transformer is reduced. (2) The temperature of the whole or part of the distribution transformer is too high, so that the insulating material in the transformer gradually loses the original mechanical property, the higher the temperature is, the faster the insulation aging is, the coil loses the protection of the insulating layer, and the transformer can be burnt in serious cases. The impact of the customer is mainly reflected in: (1) during peak electricity usage periods, low voltage conditions may occur to a portion of the users that are further from the distribution grid. (2) The customer relationship is easy to be tense, the customer satisfaction is reduced, and the customer complaint rate is increased.
In order to effectively solve the problems of three-phase unbalance and heavy overload of the distribution transformer, load split-phase adjustment is required to be carried out on users in a distribution transformer area according to daily operation data of the distribution transformer. The low-voltage distribution network adopts a three-phase four-wire system at present and the wires are all black, so that the difficulty is brought to operation and maintenance personnel to check the number of the phases of the wires on site. Particularly in cities, the phase number of the wire is not easy to verify because most of the low-voltage outgoing wires are wrapped in the low-voltage outgoing wires. The existing nuclear phase equipment is high in cost and inconvenient to carry in the using process.
Disclosure of Invention
The invention aims to provide a phase-splitting and phase-finding device, which achieves the purpose that a nuclear device is convenient to carry and distinguish A, B, C three phases.
In order to achieve the purpose, the invention provides the following technical scheme:
a phase-splitting phase-finding device comprises a signal oscillator and a phase-checking device, wherein a signal output end of the phase-finding device is in signal connection with a signal connection end of the signal oscillator, a signal output end of the signal oscillator is connected with a wire port of an A-phase cable, a signal output end of the signal oscillator is connected with a wire port of a B-phase cable, and a signal output end of the signal oscillator is connected with a wire port of a C-phase cable;
the signal oscillator comprises a first signal receiving and transmitting module, a processor, an encoder, a storage module and an audio signal transmitting module, wherein the first signal receiving and transmitting module is in bidirectional signal connection with the processor;
particularly, the nuclear phase device comprises an input module, a display module, a microprocessor, a second signal transceiver module, a sound sensor, a sound processing module, an identification module, a condition selection module and a feedback module, wherein the signal output end of the input module is in signal connection with the signal receiving end of the display module, the signal output end of the input module is in signal connection with the signal receiving end of the microprocessor, the display module is in bidirectional signal connection with the microprocessor, the signal output end of the microprocessor is in bidirectional signal connection with the second signal transceiver module, the signal output end of the sound sensor is in signal connection with the signal receiving end of the sound processing module, the signal output end of the sound processing module is in signal connection with the signal receiving end of the microprocessor, and the signal output end of the microprocessor is in signal connection with the signal receiving end of the identification module, the signal output end of the identification module is in signal connection with the signal receiving end of the condition selection module, the signal output end of the condition selection module is in signal connection with the signal receiving end of the feedback module, and the feedback module is in bidirectional signal connection with the microprocessor.
Particularly, the second signal transceiver module is in bidirectional signal connection with the first signal transceiver module.
Particularly, the output end of the audio signal transmitting module is respectively connected with the wire ports of the A-phase cable, the B-phase cable and the C-phase cable.
Particularly, the input module and the display module are integrally arranged, and particularly are capacitive touch screens.
Specifically, the audio signal transmitting module converts the electric signal into a sound signal with a special waveband and transmits the sound signal to the A-phase cable, the B-phase cable and the C-phase cable respectively.
In particular, the sound processing module converts the special wave band sound signal sensed by the sound sensor into an electric signal.
Particularly, the signal output end of the second signal transceiver module is in signal connection with the signal receiving end of the feedback module.
Particularly, a lithium battery pack is arranged in the nuclear phase device, and the electric storage capacity of the lithium battery pack is twenty-five-thousand milliamperes.
The phase-splitting phase-finding device has the following beneficial effects:
the invention inputs information through the input module of the nuclear phase device, the input module transmits the information to the micro-processor, the micro-processor transmits the information to the second signal transceiver module, the second signal transceiver module transmits the information to the signal oscillation emitter, and the signal oscillation emitter is arranged in the transformer substation, and the signal output end of the audio signal transmitting module is respectively connected with the wire ports of the A-phase cable, the B-phase cable and the C-phase cable, after the first signal transceiver module of the signal oscillator receives the information sent by the second signal transceiver module, the information is transmitted to the processor, the processor transmits the information to the encoder, the encoder performs information encoding, then the information is fed back to the processor, the processor transmits the information to the storage module for storage and simultaneously transmits the information to the audio signal transmitting module, therefore, the A-phase cable, the B-phase cable and the C-phase cable send out sound signals surrounded by different wave bands on a back-and-forth path; subsequently, the sound sensor of the nuclear phase device starts to collect information and transmits the collected sound information to the sound processing module, the sound processing module converts sound signals into digital signals and transmits the digital signals to the microprocessor, the microprocessor transmits the information to the identification module for identification, the information is transmitted to the condition selection module after the signal identification is finished, the condition selection module compares the information with the information of the A-phase cable, the B-phase cable and the C-phase cable, the information after comparison is transmitted to the feedback module, the feedback module transmits the information to the microprocessor, and the microprocessor transmits the information to the display module, so that a worker can distinguish A, B, C three phases.
Therefore, the invention solves the problem of workload of phase checking in the daily operation and maintenance work of each power supply, shortens the work which needs two hours of assistance by a plurality of people to a few minutes and can be completed; the nuclear phase error caused by large quantity of distribution transformers, insufficient personnel configuration and careless work of each power supply station, especially the regional distribution transformer, is solved, unnecessary workload is increased, and no effect is realized. The nuclear phase device can effectively prevent the nuclear phase error from occurring; the daily work efficiency of operation and maintenance personnel can be effectively improved, and an effective reference basis is provided for stable operation of the distribution transformer by accurately verifying which phase the user belongs to. The invention has the advantages of low cost, strong practicability, obvious effect, one-time investment and longer maintenance period, and the most important is to solve the problem of rapid phase checking. Meanwhile, the installation is simple, convenient and fast, and the installation is safe and reliable, and the technical skill requirement on installation personnel is not high.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a block diagram of the overall process of the present invention;
FIG. 2 is a block diagram of a signal oscillation transmitter according to the present invention;
FIG. 3 is a block diagram of a phase checking apparatus according to the present invention.
In the figure: the system comprises a signal oscillation transmitter 1, a signal transceiver module I101, a processor 102, an encoder 103, a storage module 104, an audio signal transmitting module 105, a phase checking device 2, an input module 201, a display module 202, a microprocessor 203, a signal transceiver module II 204, a sound sensor 205, a sound processing module 206, an identification module 207, a condition selection module 208, a feedback module 209, a phase 3A cable, a phase 4B cable and a phase 5C cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1-3, the present invention provides a technical solution: a phase-splitting phase-finding device comprises a signal oscillator 1 and a nuclear phase device 2, wherein the signal output end of the phase-finding device 2 is in signal connection with the signal connection end of the signal oscillator 1, the signal output end of the signal oscillator 1 is connected with the wire port of an A-phase cable, the signal output end of the signal oscillator 1 is connected with the wire port of a B-phase cable, and the signal output end of the signal oscillator 1 is connected with the wire port of a C-phase cable;
the signal oscillator 1 comprises a signal transceiver module I101, a processor 102, an encoder 103, a storage module 104 and an audio signal transmitting module 105, wherein the signal transceiver module I101 is in bidirectional signal connection with the processor 102, the encoder 103 is in bidirectional signal connection with the processor 102, a signal output end of the processor 102 is in signal connection with a signal receiving end of the audio signal transmitting module 105, an output end of the audio signal transmitting module 105 is respectively connected with electric wire ports of an A-phase cable 3, a B-phase cable 4 and a C-phase cable 5, the audio signal transmitting module 105 converts electric signals into sound signals with special wave bands and respectively transmits the sound signals to the A-phase cable 3, the B-phase cable 4 and the C-phase cable 5, and the processor 102 is in bidirectional signal connection with the storage module 104;
the nuclear phase device 2 comprises an input module 201, a display module 202, a microprocessor 203, a second signal transceiver module 204, a sound sensor 205, a sound processing module 206, an identification module 207, a condition selection module 208 and a feedback module 209, wherein the signal output end of the input module 201 is in signal connection with the signal receiving end of the display module 202, the input module 201 and the display module 202 are integrally arranged, specifically, a capacitive touch screen is adopted, the signal output end of the input module 201 is in signal connection with the signal receiving end of the microprocessor 203, the display module 202 is in bidirectional signal connection with the microprocessor 203, the signal output end of the microprocessor 203 is in bidirectional signal connection with the second signal transceiver module 204, the signal output end of the second signal transceiver module 204 is in signal connection with the signal receiving end of the feedback module 209, and the second signal transceiver module 204 is in bidirectional signal connection with the first signal transceiver module 101, the signal output end of the sound sensor 205 is connected with the signal receiving signal of the sound processing module 206, the sound processing module 206 converts the special waveband sound signal sensed by the sound sensor 205 into an electric signal, the signal output end of the sound processing module 206 is connected with the signal receiving end of the microprocessor 203 through a signal, the signal output end of the microprocessor 203 is connected with the signal receiving end of the identification module 207 through a signal, the signal output end of the identification module 207 is connected with the signal receiving end of the condition selection module 208 through a signal, the signal output end of the condition selection module 208 is connected with the signal receiving end of the feedback module 209 through a signal, the feedback module 209 is connected with the microprocessor 203 through a two-way signal, a lithium battery pack is arranged in the nuclear phase device 2, and the electric storage capacity of the lithium battery pack is twenty-five thousand.
The working principle is as follows: the information is input through an input module of the nuclear phase device, the input module transmits the information to the microprocessor, the microprocessor transmits the information to a second signal transceiver module, the second signal transceiver module transmits the information to a signal oscillation transmitter, and the signal oscillation transmitter is installed in a transformer substation, and the signal output end of the audio signal transmitting module is respectively connected with the wire ports of the A-phase cable, the B-phase cable and the C-phase cable, after the first signal transceiver module of the signal oscillator receives the information sent by the second signal transceiver module, the information is transmitted to the processor, the processor transmits the information to the encoder, the encoder performs information encoding, then the information is fed back to the processor, the processor transmits the information to the storage module for storage and simultaneously transmits the information to the audio signal transmitting module, therefore, the A-phase cable, the B-phase cable and the C-phase cable send out sound signals surrounded by different wave bands on a back-and-forth path; subsequently, the sound sensor of the nuclear phase device starts to collect information and transmits the collected sound information to the sound processing module, the sound processing module converts sound signals into digital signals and transmits the digital signals to the microprocessor, the microprocessor transmits the information to the identification module for identification, the information is transmitted to the condition selection module after the signal identification is finished, the condition selection module compares the information with the information of the A-phase cable, the B-phase cable and the C-phase cable, the information after comparison is transmitted to the feedback module, the feedback module transmits the information to the microprocessor, and the microprocessor transmits the information to the display module, so that a worker can distinguish A, B, C three phases.
In conclusion, the invention solves the problem of phase checking workload in the daily operation and maintenance work of each power supply, and shortens the work which needs two hours of assistance by multiple persons to several minutes; the nuclear phase error caused by large quantity of distribution transformers, insufficient personnel configuration and careless work of each power supply station, especially the regional distribution transformer, is solved, unnecessary workload is increased, and no effect is realized. The nuclear phase device can effectively prevent the nuclear phase error from occurring; the daily work efficiency of operation and maintenance personnel can be effectively improved, and an effective reference basis is provided for stable operation of the distribution transformer by accurately verifying which phase the user belongs to. The invention has the advantages of low cost, strong practicability, obvious effect, one-time investment and longer maintenance period, and the most important is to solve the problem of rapid phase checking. Meanwhile, the installation is simple, convenient and fast, and the installation is safe and reliable, and the technical skill requirement on installation personnel is not high.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A phase-splitting phase-finding device comprises a signal oscillator (1) and a phase-checking device (2), and is characterized in that: the signal output end of the phase searching device (2) is in signal connection with the signal connection end of the signal oscillator (1), the signal output end of the signal oscillator (1) is connected with the wire port of the A-phase cable, the signal output end of the signal oscillator (1) is connected with the wire port of the B-phase cable, and the signal output end of the signal oscillator (1) is connected with the wire port of the C-phase cable;
the signal oscillator (1) comprises a signal transceiver module I (101), a processor (102), an encoder (103), a storage module (104) and an audio signal transmitting module (105), wherein the signal transceiver module I (101) is in bidirectional signal connection with the processor (102), the encoder (103) is in bidirectional signal connection with the processor (102), a signal output end of the processor (102) is in signal connection with a signal receiving end of the audio signal transmitting module (105), and the processor (102) is in bidirectional signal connection with the storage module (104).
2. The phase-splitting phase-finding device according to claim 1, characterized in that: the nuclear phase device (2) comprises an input module (201), a display module (202), a microprocessor (203), a second signal transceiver module (204), a sound sensor (205), a sound processing module (206), an identification module (207), a condition selection module (208) and a feedback module (209), wherein the signal output end of the input module (201) is in signal connection with the signal receiving end of the display module (202), the signal output end of the input module (201) is in signal connection with the signal receiving end of the microprocessor (203), the display module (202) is in bidirectional signal connection with the microprocessor (203), the signal output end of the microprocessor (203) is in bidirectional signal connection with the second signal transceiver module (204), and the signal output end of the sound sensor (205) is in signal connection with the signal receiving end of the sound processing module (206), the signal output part of the sound processing module (206) is in signal connection with the signal receiving end of the micro-processor (203), the signal output part of the micro-processor (203) is in signal connection with the signal receiving end of the recognition module (207), the signal output part of the recognition module (207) is in signal connection with the signal receiving end of the condition selection module (208), the signal output part of the condition selection module (208) is in signal connection with the signal receiving end of the feedback module (209), and the feedback module (209) is in bidirectional signal connection with the micro-processor (203).
3. A phase-splitting phase-finding device according to claim 1 or 2, characterized in that: the second signal transceiver module (204) is in bidirectional signal connection with the first signal transceiver module (101).
4. The phase-splitting phase-finding device according to claim 1, characterized in that: the output end of the audio signal transmitting module (105) is respectively connected with the wire ports of the A-phase cable (3), the B-phase cable (4) and the C-phase cable (5).
5. The phase-splitting phase-finding device according to claim 1, characterized in that: the input module (201) and the display module (202) are arranged in an integrated mode, and specifically are capacitive touch screens.
6. The phase-splitting phase-finding device according to claim 1, characterized in that: the audio signal transmitting module (105) converts the electric signals into sound signals of special wave bands and transmits the sound signals to the A-phase cable (3), the B-phase cable (4) and the C-phase cable (5) respectively.
7. The phase-splitting phase-finding device according to claim 1, characterized in that: the sound processing module (206) converts the special waveband sound signal sensed by the sound sensor (205) into an electric signal.
8. The phase-splitting phase-finding device according to claim 1, characterized in that: and the signal output end of the second signal transceiver module (204) is in signal connection with the signal receiving end of the feedback module (209).
9. The phase-splitting phase-finding device according to claim 1, characterized in that: the nuclear phase device (2) is internally provided with a lithium battery pack, and the electric storage capacity of the lithium battery pack is twenty-five-thousand milliamperes.
CN202011123789.1A 2020-10-20 2020-10-20 Phase-splitting phase-finding device Pending CN112491065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011123789.1A CN112491065A (en) 2020-10-20 2020-10-20 Phase-splitting phase-finding device

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Application Number Priority Date Filing Date Title
CN202011123789.1A CN112491065A (en) 2020-10-20 2020-10-20 Phase-splitting phase-finding device

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203241474U (en) * 2013-04-08 2013-10-16 河南省电力公司驻马店供电公司 Coding-decoding phase check device for electric power circuit
US20180219376A1 (en) * 2015-07-24 2018-08-02 Wobben Properties Gmbh Method and device for detecting an electrical voltage in a supply network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203241474U (en) * 2013-04-08 2013-10-16 河南省电力公司驻马店供电公司 Coding-decoding phase check device for electric power circuit
US20180219376A1 (en) * 2015-07-24 2018-08-02 Wobben Properties Gmbh Method and device for detecting an electrical voltage in a supply network

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Application publication date: 20210312