CN110837015A - Portable remote measurement test device for field operation and maintenance and working method thereof - Google Patents
Portable remote measurement test device for field operation and maintenance and working method thereof Download PDFInfo
- Publication number
- CN110837015A CN110837015A CN201911128072.3A CN201911128072A CN110837015A CN 110837015 A CN110837015 A CN 110837015A CN 201911128072 A CN201911128072 A CN 201911128072A CN 110837015 A CN110837015 A CN 110837015A
- Authority
- CN
- China
- Prior art keywords
- current
- module
- power
- core board
- output terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention relates to a portable telemetering test device for field operation and maintenance, which comprises: the power amplifier comprises a core board, a power amplifier module, a change-over switch unit, a turn winding current rising unit and a current output terminal; the power amplifier module and the transfer switch unit are both connected with the core board; the turn-winding current rising unit and the current output terminal are connected with the change-over switch unit and used for carrying out mutual conversion between the turn-winding current rising unit and the current output terminal; the winding upwash unit is connected with a CT of a power distribution terminal of a power grid system in a hanging mode and used for testing the CT; the current output terminal is connected with the FTU of the power distribution terminal of the power grid system and used for testing the FTU. The device further comprises a touch screen, a backup power module, a communication module and a memory module which are connected with the core board. The invention can improve the technical level and the troubleshooting efficiency of the field operation and maintenance of the power distribution terminal, saves the investment of labor cost, reduces the troubleshooting time of power failure and improves the reliability of electric power.
Description
Technical Field
The invention relates to the technical field of power distribution terminal testing, in particular to a portable remote measuring test device for field operation and maintenance and a working method thereof.
Background
With the rapid advance of the operation of the distribution automation, the distribution automation is built and spread out all over the places, the number of the distribution terminals is rapidly increased, the coverage area is rapidly enlarged, and the operation and maintenance of the distribution terminals are also very important.
The distribution automation terminal is a general name of various remote monitoring and control units arranged on a power distribution network and completes functions of data acquisition, control, communication and the like. The power distribution terminals are eyes and limbs of a power distribution automation system, and the operation conditions of the power distribution terminals are related to the data reliability, the performance accuracy and the operation safety of power distribution automation. Quality problems have also affected the development of distribution network automation.
At present, distribution automation terminals which are put into operation in China are popularized in a large area, equipment which is put into operation in early stage is not subjected to full inspection and has long operation life, abnormal state is found, operation and maintenance personnel are required to go to the site for confirmation, and the operation and maintenance efficiency is low due to the fact that the quantity of the equipment is large, and therefore considerable labor is required to be invested in the operation and maintenance work.
Therefore, how to provide an operation and maintenance method that saves labor cost is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a portable telemetry testing apparatus for field operation and maintenance and a working method thereof, which can improve the technical level and troubleshooting efficiency of the field operation and maintenance of a power distribution terminal, save the investment of human cost, and improve the utilization rate of the power distribution terminal.
The invention is realized by adopting the following scheme: a portable telemetry testing apparatus for field operations and maintenance, comprising: the power amplifier comprises a core board, a power amplifier module, a change-over switch unit, a turn winding current rising unit and a current output terminal; the power amplifier module and the transfer switch unit are both connected with the core board; the turn-winding current rising unit and the current output terminal are both connected with the change-over switch unit and used for carrying out mutual conversion between the turn-winding current rising unit and the current output terminal; the winding upwash unit is connected with a CT (electromagnetic current transformer) of a power distribution terminal of a power grid system in a hanging mode and used for testing the CT; the current output terminal is connected with an FTU (feeder terminal unit) of a power distribution terminal of a power grid system and used for testing the FTU.
The touch screen, the backup power module, the communication module and the memory module are connected with the core board.
Further, the invention also provides a working method of the portable telemetering test device for field operation and maintenance, which comprises the following steps:
step S1: the initialization device is used for amplifying current flowing through the power amplification module and then flowing through the turn-winding current rising unit through the core board and the change-over switch to carry out secondary amplification;
step S2: applying the secondarily amplified current to a CT (current transformer) connected with the turn-up unit in a hanging manner, judging that the CT has no fault if the CT can carry out current reduction on the secondarily amplified current, and otherwise, judging that the CT has a fault; the core board controls the memory module to store fault information and sends the fault information to a background through the communication module;
step S3: the current is amplified by the power amplifier module and then passes through the core board and the change-over switch, the change-over switch is used for changing gears with different currents, and whether faults exist in the current output terminal or not is judged by observing the mutation states of the current flowing through the current output terminal at different gears; the core board controls the memory module to store fault information and sends the fault information to the background through the communication module.
Compared with the prior art, the invention has the following beneficial effects:
the power distribution terminal is detached and connected to the current output terminal and the turn-winding current rising unit of the testing device for testing, so that whether the fault judgment function of the power distribution terminal is normal or not is judged, the operation condition of the power distribution terminal is confirmed according to the test result, corresponding measures are taken, such as fault return to a factory or normal operation, and the investment of labor cost is effectively saved. In addition, the operation and maintenance personnel are connected with the touch screen through the expansion interface board, so that the operation is simpler and clearer, and the operation and maintenance personnel can use the operation and maintenance personnel conveniently.
Drawings
Fig. 1 is a block diagram of an apparatus according to an embodiment of the present invention.
Fig. 2 is a functional schematic diagram of a transfer switch according to an embodiment of the invention.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, the present embodiment provides a portable telemetry testing apparatus for field operation and maintenance, comprising: the power amplifier comprises a core board, a power amplifier module, a change-over switch unit, a turn winding current rising unit and a current output terminal; the power amplifier module and the transfer switch unit are both connected with the core board; the turn-winding current rising unit and the current output terminal are both connected with the change-over switch unit and used for carrying out mutual conversion between the turn-winding current rising unit and the current output terminal; the winding upwash unit is connected with a CT (electromagnetic current transformer) of a power distribution terminal of a power grid system in a hanging mode and used for testing the CT; the current output terminal is connected with an FTU (feeder terminal unit) of a power distribution terminal of a power grid system and used for testing the FTU.
As shown in fig. 2, the present embodiment provides a portable telemetry testing apparatus for field operation and maintenance, in which a change-over switch is used as a switching device of an apparatus output mode, and the change-over switch can lead an output current to a winding upwelling place for testing CT accuracy of a distribution automation terminal, and can also lead an output to a current terminal for directly accessing a secondary current collecting part of the distribution automation terminal, and testing sampling loop accuracy of the terminal.
In this embodiment, the core board further includes a touch screen, a backup power module, a communication module, and a memory module, which are connected to the core board.
Preferably, the embodiment further provides an operating method of the portable telemetry testing device for field operation and maintenance, which includes the following steps:
step S1: the initialization device is used for amplifying current flowing through the power amplification module and then flowing through the turn-winding current rising unit through the core board and the change-over switch to carry out secondary amplification;
step S2: applying the secondarily amplified current to a CT (current transformer) connected with the turn-up unit in a hanging manner, judging that the CT has no fault if the CT can carry out current reduction on the secondarily amplified current, and otherwise, judging that the CT has a fault; the core board controls the memory module to store fault information and sends the fault information to a background through the communication module; (the communication module is connected with the core board and has the function of providing a connection interface for debugging the upper computer)
Step S3: the current is amplified by the power amplifier module and then passes through the core board and the change-over switch, the change-over switch is used for changing gears with different currents, and whether faults exist in the current output terminal or not is judged by observing the mutation states of the current flowing through the current output terminal at different gears; the core board controls the memory module to store fault information and sends the fault information to the background through the communication module.
In this embodiment, the turn-winding current-rising unit is composed of coils and used for hanging a CT test; the current output terminal can be directly connected with the secondary current of the FTU.
Preferably, in this embodiment, the provided testing device is used for field testing, so that the testing environment of a field needs to be matched, and the detection operation of the operation and maintenance personnel is as simple as possible in the operation and maintenance field.
Preferably, in this embodiment, all components and parts selected by the provided testing device are vibration-resistant units with small volume and weight, so that the testing device is convenient to carry when going out for operation and maintenance. The test of the power distribution terminal is based on the configuration of current and time, so that a change-over switch is needed to control and feed back the current, and the whole test process is realized. The touch screen is used as a display module for man-machine interaction and provides display and operation functions of an equipment interface. As shown in fig. 2, the transfer switch unit is a test transfer function, and can be switched between the turn-up unit and the current output terminal. The power amplifier module amplifies current through the combination of the transistor and the triode. The winding up-flow unit provides the output current of the power amplification module to the corresponding current of the CT to be detected in a winding form, and mainly has the functions of multiple amplification and CT hanging. The current output terminal provides the output current of the power amplifier module to the corresponding current of the power distribution terminal to be detected in a form of direct output of the terminal.
Preferably, in this embodiment, the test on the functions of the power distribution terminal is realized by outputting a corresponding current test sequence, and whether the power distribution terminal which is put into operation on site has defects is judged, so that technical support is provided for operation and maintenance work, a large amount of manpower is not needed, and the detection level and the detection efficiency are improved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (3)
1. A portable telemetering test device for on-site operation and maintenance is characterized in that: the method comprises the following steps: the power amplifier comprises a core board, a power amplifier module, a change-over switch unit, a turn winding current rising unit and a current output terminal; the power amplifier module and the transfer switch unit are both connected with the core board; the turn-winding current rising unit and the current output terminal are both connected with the change-over switch unit and used for carrying out mutual conversion between the turn-winding current rising unit and the current output terminal; the winding upwash unit is connected with a CT of a power distribution terminal of a power grid system in a hanging mode and used for testing the CT; and the current output terminal is connected with an FTU of a power distribution terminal of a power grid system and used for testing the FTU.
2. The portable telemetry test device for field operations and maintenance of claim 1, wherein: the device comprises a core board, a touch screen, a backup power module, a communication module and a memory module, wherein the touch screen, the backup power module, the communication module and the memory module are connected with the core board.
3. A method of operating a portable telemetry test apparatus for field operations and maintenance according to any one of claims 1 to 2, characterised in that: the method comprises the following steps:
step S1: the initialization device is used for amplifying current flowing through the power amplification module and then flowing through the turn-winding current rising unit through the core board and the change-over switch to carry out secondary amplification;
step S2: applying the secondarily amplified current to a CT (current transformer) connected with the turn-up unit in a hanging manner, judging that the CT has no fault if the CT can carry out current reduction on the secondarily amplified current, and otherwise, judging that the CT has a fault; the core board controls the memory module to store fault information and sends the fault information to a background through the communication module;
step S3: the current is amplified by the power amplifier module and then passes through the core board and the change-over switch, the change-over switch is used for changing gears with different currents, and whether faults exist in the current output terminal or not is judged by observing the mutation states of the current flowing through the current output terminal at different gears; the core board controls the memory module to store fault information and sends the fault information to the background through the communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128072.3A CN110837015A (en) | 2019-11-18 | 2019-11-18 | Portable remote measurement test device for field operation and maintenance and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128072.3A CN110837015A (en) | 2019-11-18 | 2019-11-18 | Portable remote measurement test device for field operation and maintenance and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110837015A true CN110837015A (en) | 2020-02-25 |
Family
ID=69576786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911128072.3A Pending CN110837015A (en) | 2019-11-18 | 2019-11-18 | Portable remote measurement test device for field operation and maintenance and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110837015A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158718A (en) * | 2015-09-30 | 2015-12-16 | 福建奥通迈胜电力科技有限公司 | Fault indicator comprehensive testing method and testing system |
| CN106556759A (en) * | 2016-11-10 | 2017-04-05 | 国网湖北省电力公司咸宁供电公司 | A kind of power distribution automation apparatus debugging method and debugging system |
| JP2017161425A (en) * | 2016-03-10 | 2017-09-14 | 中国電力株式会社 | Charge terminal and accident point probe device |
| CN107300644A (en) * | 2016-04-16 | 2017-10-27 | 威海锐恩科技有限公司 | A kind of distribution feeder terminal FTU test devices |
| CN209102828U (en) * | 2018-11-14 | 2019-07-12 | 国网重庆市电力公司电力科学研究院 | A kind of portable distribution network terminal tester |
-
2019
- 2019-11-18 CN CN201911128072.3A patent/CN110837015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158718A (en) * | 2015-09-30 | 2015-12-16 | 福建奥通迈胜电力科技有限公司 | Fault indicator comprehensive testing method and testing system |
| JP2017161425A (en) * | 2016-03-10 | 2017-09-14 | 中国電力株式会社 | Charge terminal and accident point probe device |
| CN107300644A (en) * | 2016-04-16 | 2017-10-27 | 威海锐恩科技有限公司 | A kind of distribution feeder terminal FTU test devices |
| CN106556759A (en) * | 2016-11-10 | 2017-04-05 | 国网湖北省电力公司咸宁供电公司 | A kind of power distribution automation apparatus debugging method and debugging system |
| CN209102828U (en) * | 2018-11-14 | 2019-07-12 | 国网重庆市电力公司电力科学研究院 | A kind of portable distribution network terminal tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103051065B (en) | The distributed FA interlock method of testing of a kind of power distribution automation and system | |
| CN104811224A (en) | Test system for power line carrier communication module | |
| CN104076807B (en) | The adjustment method of the automated system of intelligent substation | |
| CN103632521A (en) | Electricity consumption information collection and fault detection system and local channel detection method thereof | |
| CN103700235A (en) | Electricity consumption information gathering fault detection system and remote channel detection method therefor | |
| CN112162847A (en) | Power transformer state sensing and evaluating system and method | |
| CN110456192A (en) | Distribution terminal automatization test system and method based on LabView | |
| CN101452632B (en) | Single-phase earth fault diagnostic equipment | |
| CN105738857A (en) | Electric energy meter and acquisition terminal integrated testing device | |
| CN105006891B (en) | Online visualization remote control debugging terminal and method for transformer station's backstage upgrading | |
| CN101769962A (en) | Electric energy meter detecting system and device for detecting contact resistance and method thereof | |
| CN110837015A (en) | Portable remote measurement test device for field operation and maintenance and working method thereof | |
| CN107544048B (en) | Acquire fault identification module automatic detection device and detection method | |
| CN203588444U (en) | Fault detection system for electricity consumption information collection | |
| CN2884656Y (en) | Simulator for testing power loading management terminal communication | |
| CN112379252B (en) | Primary and secondary fusion pole switch test system | |
| CN114371355A (en) | Self-adaptive joint debugging system for realizing multi-interval point-to-point test of distribution automation terminal | |
| CN204882853U (en) | Electric energy meter pressure resistance test installation | |
| CN112698579A (en) | Portable pole-mounted switch controller field test device and method | |
| CN110837026A (en) | Power distribution network fault detection device, system and method | |
| CN104237838A (en) | Metering working voltage drop automatic test platform and voltage drop modes | |
| CN213126060U (en) | Distribution network automation testing arrangement | |
| CN216485216U (en) | ETC portal remote power tuner | |
| CN215728736U (en) | Loop checking device and system | |
| CN209373816U (en) | Low-voltage collecting meter reading training cabinet, low-voltage collecting meter reading training system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200225 |
|
| RJ01 | Rejection of invention patent application after publication |