CN109839588A - SF6 gas density is relay checking instrument - Google Patents
SF6 gas density is relay checking instrument Download PDFInfo
- Publication number
- CN109839588A CN109839588A CN201711198416.9A CN201711198416A CN109839588A CN 109839588 A CN109839588 A CN 109839588A CN 201711198416 A CN201711198416 A CN 201711198416A CN 109839588 A CN109839588 A CN 109839588A
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- China
- Prior art keywords
- controller
- sensor
- case lid
- input terminal
- containing box
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Abstract
The invention discloses a kind of SF6 gas density is relay checking instruments, including pressure sensor, humidity sensor and controller, pressure sensor and humidity sensor connect with the input terminal of A/D sample circuit, A/D sample circuit output end connects with controller input terminal, controller input terminal is further connected with keyboard input module and temperature sensor, controller output end connects mini-printer, LCD display module and motor drive module, and controller is connected to eeprom memory；The SF6 gas density is relay checking instrument further includes the containing box for storing above-mentioned each component, containing box includes cabinet and the case lid for being hinged on cabinet upper end, case lid a side is hinged with movable button, the retaining ring for being interlockingly connected with the movable button is provided on cabinet, case lid top surface is provided with the handheld ring for carrying the containing box.The tester is reasonable in design, high degree of automation, and measurement accuracy is high, can query history record, and facilitate carryings, convenient for popularization and use.
Description
Technical field
The present invention relates to a kind of testers, more particularly to a kind of SF6 gas density is relay checking instrument.
Background technique
SF6 breaker has good insulation and arc extinction performance, and dielectric strength and arc extinguishing ability depend on that SF6 gas is close
Degree when density reduces will cause air insulating device compressive resistance and reduce with breaker Breaking capacity decline usually using close
Degree relay monitors the SF6 gas density is in breaker on-line.However, the SF6 density monitor meeting of installation at the scene
Because appearance of being failure to actuate for a long time act the failures such as not flexible therefore periodically it is verified be ensure power equipment reliability service must
Means are wanted in addition, SF6 gas is after electric arc decomposes can generate after solids dampness of these precipitatings of powdered sediment in partly leading
The characteristic of body, makes insulation performance decline to a great extent, therefore the general performance for seriously affecting electrical equipment of moisture content of SF6 gas.
Summary of the invention
It is an object of the present invention to provide provide a kind of SF6 gas density is relay checking instrument.The tester is reasonable in design,
High degree of automation, measurement accuracy are high, can query history record, and facilitate carryings, convenient for popularization and use.
To achieve the goals above, invention uses a kind of technical solution below: SF6 gas density is relay checking
Instrument, it is characterised in that: including for measuring SF6 manifold pressure value pressure sensor, for acquiring the wet of SF6 gas humidity
Spend sensor and the controller for receiving pressure sensor and humidity sensor output signal, the pressure sensor and wet
Degree sensor connects with the input terminal of A/D sample circuit, the input terminal phase of the output end and controller of the A/D sample circuit
It connects, the input terminal of the controller is further connected with keyboard input module and the temperature sensor for detecting ambient temperature, institute
The output for stating controller is terminated with mini-printer, LCD display module and motor drive module, and the controller is connected to EEPROM
Memory；It further include the power module for above-mentioned each component power supply；The SF6 gas density is relay checking instrument further includes for receiving
Receive the containing box of above-mentioned each component, the containing box includes cabinet and the case lid for being hinged on cabinet upper end, described case lid a side
It is hinged with movable button, the retaining ring for being interlockingly connected with the movable button is provided on the cabinet, the case lid top surface is provided with
For carrying the handheld ring of the containing box.
Preferably, the temperature sensor uses DS1620 digital sensor.
The beneficial effects of the present invention are: structure of the invention is simple, novel in design reasonable, is easily installed.Automate journey
Degree is high, is SF6 without separating density monitor and apparatus body using automatically SF6 density monitor is measured in line method
Overhaul of line breaker provides convenient.And using A/D sample circuit acquire humidity, pressure information, measurement result can actual response work as
Preceding value.The present invention can query history record, tester have by device numbering and testDate inquiry test record function, this
The cost of implementation of invention is low, and using effect is good, convenient for promoting the use of
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention in order to illustrate more clearly of this hair
Bright embodiment or technical solution in the prior art, below will be p- required for describing the embodiments or the prior art attached
Figure is briefly described, for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is schematic block circuit diagram of the invention.
Fig. 2 is the structural schematic diagram of containing box of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is as depicted in figs. 1 and 2: a kind of SF6 gas density is relay checking instrument, it is characterised in that: including for measuring SF6
The pressure sensor of manifold pressure value, the humidity sensor for acquiring SF6 gas humidity and for receiving pressure sensing
The controller of device and humidity sensor output signal, the pressure sensor and humidity sensor are defeated with A/D sample circuit
Enter end to connect, the output end of the A/D sample circuit connects with the input terminal of controller, and the input terminal of the controller is further connected with
Keyboard input module and temperature sensor for detecting ambient temperature, the output of the controller are terminated with microprinting
Machine, LCD display module and motor drive module, the controller are connected to eeprom memory；It further include being supplied for above-mentioned each component
The power module of electricity；The SF6 gas density is relay checking instrument further includes the containing box for storing above-mentioned each component, the receipts
Case of receiving includes cabinet and the case lid for being hinged on cabinet upper end, and described case lid a side is hinged with movable button, is arranged on the cabinet
There is the retaining ring for being interlockingly connected with the movable button, the case lid top surface is provided with the handheld ring for carrying the containing box.
Preferably, the temperature sensor uses DS1620 digital sensor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of SF6 gas density is relay checking instrument, it is characterised in that: including the pressure for measuring SF6 manifold pressure value
Force snesor (1), the humidity sensor (2) for acquiring SF6 gas humidity and for receiving pressure sensor (1) and humidity
The controller (4) of sensor (2) output signal, the pressure sensor (1) and humidity sensor (2) with A/D sample circuit
(3) input terminal connects, and the output end of the A/D sample circuit (3) connects with the input terminal of controller (4), the controller
(4) input terminal is further connected with keyboard input module (9) and the temperature sensor (2) for detecting ambient temperature, the control
The output of device (4) processed is terminated with mini-printer (7), LCD display module (5) and motor drive module (6), the controller
(4) eeprom memory (10) are connected to；It further include the power module for above-mentioned each component power supply；The SF6 gas density is relay
Tester further includes the containing box (11) for storing above-mentioned each component, and the containing box (11) includes cabinet (11-1) and hinged
Case lid (11-2) in the upper end cabinet (11-1), described case lid (11-2) a side are hinged with movable button (11-3), the cabinet
The retaining ring (11-4) for being interlockingly connected with the movable button (11-3), the case lid top surface (11-2) setting are provided on (11-1)
There is the handheld ring (11-5) for carrying the containing box (11).
2. a kind of SF6 gas density is relay checking instrument according to claim 1, it is characterised in that: the temperature sensing
Device (2) uses DS1620 digital sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711198416.9A CN109839588A (en) | 2017-11-25 | 2017-11-25 | SF6 gas density is relay checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711198416.9A CN109839588A (en) | 2017-11-25 | 2017-11-25 | SF6 gas density is relay checking instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109839588A true CN109839588A (en) | 2019-06-04 |
Family
ID=66878380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711198416.9A Pending CN109839588A (en) | 2017-11-25 | 2017-11-25 | SF6 gas density is relay checking instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109839588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257745A (en) * | 2020-02-28 | 2020-06-09 | 大唐水电科学技术研究院有限公司 | Generator outlet circuit breaker state early warning method |
-
2017
- 2017-11-25 CN CN201711198416.9A patent/CN109839588A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257745A (en) * | 2020-02-28 | 2020-06-09 | 大唐水电科学技术研究院有限公司 | Generator outlet circuit breaker state early warning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190604 |