CN210835159U - Sulfur hexafluoride density relay detection device - Google Patents
Sulfur hexafluoride density relay detection device Download PDFInfo
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- CN210835159U CN210835159U CN201921400981.3U CN201921400981U CN210835159U CN 210835159 U CN210835159 U CN 210835159U CN 201921400981 U CN201921400981 U CN 201921400981U CN 210835159 U CN210835159 U CN 210835159U
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- density relay
- sulfur hexafluoride
- signal transmission
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Abstract
The utility model discloses a sulfur hexafluoride density relay detection device, which comprises sulfur hexafluoride electrical equipment, a gas sampling valve, a sulfur hexafluoride density relay, a density relay deflation needle valve, a density relay signal transmission interface and a density relay calibration device; the gas sampling valve is connected to the sulfur hexafluoride electrical equipment; the sulfur hexafluoride density relay is connected with the output end of the gas sampling valve; the output end of the sulfur hexafluoride density relay is respectively connected with the density relay air release needle valve and the density relay signal transmission interface; the density relay signal transmission interface is in butt joint with the density relay checking device. The utility model discloses need aerify, need dismantle the problem when can solving traditional approach to the check-up of sulfur hexafluoride density relay.
Description
Technical Field
The utility model relates to a sulfur hexafluoride equipment operation maintenance technical field especially relates to a sulfur hexafluoride density relay detection device.
Background
The sulfur hexafluoride density relay of the transformer substation circuit breaker or the transformer is periodically checked to judge whether the density relay is normal or not is a well-known effective means for guaranteeing the safe operation of sulfur hexafluoride electrical equipment, and the traditional sulfur hexafluoride density relay check method comprises two methods of inflation check after disassembly and inflation check without disassembly.
The inflation checking method has large workload after disassembly, and is easy to cause air leakage of equipment joints; the method for checking the air inflation without disassembly easily causes the problem that the purity of the gas in the sulfur hexafluoride electrical equipment is reduced due to the fact that the air is mixed into the equipment, so that insulation is affected, for higher sulfur hexafluoride equipment, a scaffold needs to be built to solve the problem that a pipeline connected between a checking instrument and the equipment is short, and the workload is greatly increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sulfur hexafluoride density relay that does not aerify, does not dismantle during the check-up to solve the problem that traditional approach need aerify, need dismantle when to the check-up of sulfur hexafluoride density relay.
A sulfur hexafluoride density relay detection device comprises sulfur hexafluoride electrical equipment, a gas sampling valve, a sulfur hexafluoride density relay, a density relay air release needle type valve, a density relay signal transmission interface and a density relay calibration device;
the gas sampling valve is connected to the sulfur hexafluoride electrical equipment; the sulfur hexafluoride density relay is connected with the output end of the gas sampling valve; the output end of the sulfur hexafluoride density relay is respectively connected with the density relay air release needle valve and the density relay signal transmission interface; the density relay signal transmission interface is in butt joint with the density relay checking device.
The working mode of the sulfur hexafluoride density relay detection device is as follows:
before the calibration work starts, the gas sampling valve is closed, the sulfur hexafluoride low density alarm and the locking protection of the monitoring background are unlocked, the signal transmission joint of the density relay and the monitoring background is disassembled, and the density relay calibration device is in butt joint with the signal transmission joint. In the checking process, the gas pressure of sulfur hexafluoride in the density relay is gradually reduced to an alarm value from a rated value and then to a locking value by slowly adjusting the gas release needle type valve of the density relay, and the alarm and locking signals are transmitted to the density relay checking device through the signal transmission interface of the density relay, so that the checking of the sulfur hexafluoride density relay is completed on the premise of no inflation and no disassembly. After the verification is finished, the connection between the signal transmission interface and the density relay verification device is released, the connection with the monitoring background is restored, the gas sampling valve is opened, and the alarm and locking protection of the monitoring background are restored.
Therefore, the utility model provides a sulfur hexafluoride density relay detection device has the advantage of not aerifing, not dismantling when the periodic check-up, can realize quick, the convenient inspection to sulfur hexafluoride density relay, to improving work efficiency, alleviate the field work degree of difficulty, reduce the insulating influence of operation equipment and have the important function. The sulfur hexafluoride density relay detection device can be used for all electrical equipment which uses sulfur hexafluoride gas as an insulating medium and is provided with the sulfur hexafluoride density relay, including sulfur hexafluoride circuit breakers, mutual inductors, GIS equipment and the like. In addition, the sulfur hexafluoride density relay detection device has the advantages of simple structure and low implementation cost.
Additionally, according to the utility model provides a sulfur hexafluoride density relay detection device can also have following additional technical characterstic:
furthermore, the sulfur hexafluoride gas insulation equipment comprises a sulfur hexafluoride breaker, a mutual inductor and GIS equipment.
Furthermore, the material of the gas sampling valve is copper.
Further, the density relay checking device adopts an industrial computer.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a sulfur hexafluoride density relay detection device according to an embodiment of the present invention;
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a sulfur hexafluoride density relay detection device according to an embodiment of the present invention includes a sulfur hexafluoride electrical device 1, a gas sampling valve 2, a sulfur hexafluoride density relay 3, a density relay air release needle valve 4, a density relay signal transmission interface 5, and a density relay calibration device 6. The sulfur hexafluoride electrical equipment 1 is electrical equipment using sulfur hexafluoride as an insulating medium, and specifically includes a sulfur hexafluoride circuit breaker, a transformer and GIS equipment.
The gas sampling valve 2 is connected to the sulfur hexafluoride electrical equipment 1; the sulfur hexafluoride density relay 3 is connected to the output end of the gas sampling valve 2; the output end of the sulfur hexafluoride density relay 3 is respectively connected with the density relay air release needle valve 4 and the density relay signal transmission interface 5; the density relay signal transmission interface 5 is in butt joint with the density relay checking device 6. The density relay checking device 6 specifically adopts an industrial computer, and conventional software for detection is installed in the industrial computer.
When sulfur hexafluoride electrical equipment is in power failure, operation and maintenance, the sulfur hexafluoride density relay detection device is adopted to carry out the verification work of the sulfur hexafluoride density relay, and the detection process is as follows:
before the calibration work starts, the gas sampling valve 2 is closed, the sulfur hexafluoride density low alarm and locking protection of the monitoring background are unlocked, the sulfur hexafluoride density relay 3 and the signal transmission connector of the monitoring background are disassembled, and the density relay calibration device 6 is in butt joint with the density relay signal transmission connector 5.
In the checking process, the gas pressure of sulfur hexafluoride in the sulfur hexafluoride density relay 3 is gradually reduced from a rated value to an alarm value and then to a locking value by slowly adjusting the gas release needle type valve 4 of the density relay, and the alarm and locking signals are transmitted to the density relay checking device 6 through the density relay signal transmission interface 5, so that the checking of the sulfur hexafluoride density relay 3 is completed on the premise of no inflation and no disassembly.
After the verification is finished, the connection between the density relay signal transmission interface 5 and the density relay verification device 6 is released, the connection with the monitoring background is restored, the gas sampling valve 2 is opened, and the alarm and locking protection of the monitoring background are restored.
Therefore, the sulfur hexafluoride density relay detection device has the advantages of no inflation and no disassembly during regular verification, can realize quick and convenient detection of the sulfur hexafluoride density relay, and plays an important role in improving the working efficiency, reducing the field work difficulty and reducing the influence on insulation of operating equipment. The sulfur hexafluoride density relay detection device can be used for all electrical equipment which uses sulfur hexafluoride gas as an insulating medium and is provided with the sulfur hexafluoride density relay, including sulfur hexafluoride circuit breakers, mutual inductors, GIS equipment and the like. In addition, the sulfur hexafluoride density relay detection device has the advantages of simple structure and low implementation cost.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. A sulfur hexafluoride density relay detection device is characterized by comprising sulfur hexafluoride electrical equipment, a gas sampling valve, a sulfur hexafluoride density relay, a density relay air release needle valve, a density relay signal transmission interface and a density relay calibration device;
the gas sampling valve is connected to the sulfur hexafluoride electrical equipment; the sulfur hexafluoride density relay is connected with the output end of the gas sampling valve; the output end of the sulfur hexafluoride density relay is respectively connected with the density relay air release needle valve and the density relay signal transmission interface; the density relay signal transmission interface is in butt joint with the density relay checking device.
2. The sulfur hexafluoride density relay detection device of claim 1, wherein the sulfur hexafluoride gas insulation equipment includes sulfur hexafluoride circuit breakers, transformers and GIS equipment.
3. The sulfur hexafluoride density relay detection device of claim 1, wherein the gas sampling valve is made of copper.
4. The sulfur hexafluoride density relay test device of claim 1, wherein the density relay verification device uses an industrial computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921400981.3U CN210835159U (en) | 2019-08-27 | 2019-08-27 | Sulfur hexafluoride density relay detection device |
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| CN201921400981.3U CN210835159U (en) | 2019-08-27 | 2019-08-27 | Sulfur hexafluoride density relay detection device |
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| CN210835159U true CN210835159U (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112200276A (en) * | 2020-08-21 | 2021-01-08 | 云南电网有限责任公司德宏供电局 | Cloud platform based electric power pointer instrument test equipment management and control system and method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112200276A (en) * | 2020-08-21 | 2021-01-08 | 云南电网有限责任公司德宏供电局 | Cloud platform based electric power pointer instrument test equipment management and control system and method |
| CN112200276B (en) * | 2020-08-21 | 2023-02-24 | 云南电网有限责任公司德宏供电局 | Cloud platform based electric power pointer instrument test equipment management and control system and method |
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