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JPS6246226A - Apparatus for monitoring pressure of gas of gas insulating switch apparatus - Google Patents

Apparatus for monitoring pressure of gas of gas insulating switch apparatus

Info

Publication number
JPS6246226A
JPS6246226A JP18515285A JP18515285A JPS6246226A JP S6246226 A JPS6246226 A JP S6246226A JP 18515285 A JP18515285 A JP 18515285A JP 18515285 A JP18515285 A JP 18515285A JP S6246226 A JPS6246226 A JP S6246226A
Authority
JP
Japan
Prior art keywords
gas
gas chamber
pressure
standard
amplifier
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
Application number
JP18515285A
Other languages
Japanese (ja)
Inventor
Masahei Sakurai
桜井 雅平
Seietsu Daibo
大坊 誠悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18515285A priority Critical patent/JPS6246226A/en
Publication of JPS6246226A publication Critical patent/JPS6246226A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To completely remove a mechanical drive part and to enable remote monitoring with good reliability, by determining the equilibrium state of gas pressure by a semiconductive sensor and a bridge circuit and amplifying the same by an amplifier to obtain output. CONSTITUTION:A standard SF6 gas chamber 1 partitioned by a wall 2 is provided to the part opposed to a SF6 gas chamber 3 and a separate SF6 gas chamber 4 communicated with the gas chamber 3 is provided around the gas chamber 1 so as to cover said gas chamber 1. Diaphragms 9, 10 are partially mounted to the respective side walls of the gas chamber 3 and the gas chamber 1 and chambers 12, 13 filled with silicone oil are provided to the back sides of said diaphragms 9, 10 so as to apply pressure to the front and back surfaces of a center diaphragm 14. Further, the pressures of the silicone oils in the front and back surface sides of the diaphragm 14 are applied to the front and back surfaces of a semiconductive sensor element 5 through pipes 15, 16. The electric signal from the element 5 corresponds to the pressure of SF6 gas to that of standard SF6 gas having the same temp. and is amplified by an amplifier 6 through a bridge circuit to be displayed.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、絶縁ガス封入機器内のガス監視装置に関する
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a gas monitoring device in insulating gas-filled equipment.

〔発明の背景〕[Background of the invention]

一般に高電圧機器は絶縁性および安全性の見地から大型
化し易り性質を備えているが、昨今においては、用地の
縮少化、保守の容易性および絶縁性能の向上筒を意図し
て絶縁ガスを密封した高電圧機器が普及している。この
種の機器に使用される絶縁ガスとしては、アーク消弧性
能および絶縁性能が共に優れ七いるSFgガスが一般に
多く使用されている。一方、絶縁ガスのアーク消弧およ
び絶縁等の各種性能は、ガス密度に左右される。
In general, high-voltage equipment tends to be bulky from the standpoint of insulation and safety, but in recent years, insulating gas High-voltage equipment that is sealed is becoming popular. SFg gas, which has excellent arc extinguishing performance and excellent insulation performance, is generally used as an insulating gas for this type of equipment. On the other hand, various performances of the insulating gas, such as arc extinguishing and insulation, depend on the gas density.

このため、絶縁性能が主眼となる断路器等に対しては、
密度ρ= 25〜30 K97 m ’  (20C換
算ガス圧力で3〜3.5 Ky/Crn”   g )
のレベルのSF6 ガスが刺入され、またアーク消弧性
fjヒが主眼となるじゃ′、!fr器の場合は、密度ρ
=38に9/m3(20C換算ガス圧力で5 K9/ 
cm2− g )のレベルのSFaガスが封入されてい
るのが現状である。
For this reason, for disconnectors etc. where insulation performance is the main focus,
Density ρ = 25~30K97 m' (3~3.5 Ky/Crn''g at 20C equivalent gas pressure)
The level of SF6 gas will be injected, and the main focus will be on arc extinguishing fj! In the case of the fr device, the density ρ
= 38 to 9/m3 (5 K9/m3 at 20C equivalent gas pressure)
Currently, SFa gas at a level of cm2-g) is sealed.

このような絶縁ガス封入機器においては、その絶縁性能
およびアーク消弧性能が、前述したように封入ガスのガ
ス密度に大きく左右されるため、当該ガス密度の変化を
常に監視するためのガス県税装置が必要となっている。
In such equipment filled with insulating gas, the insulation performance and arc extinguishing performance are greatly affected by the gas density of the filled gas, as mentioned above, so gas prefectural tax is required to constantly monitor changes in the gas density. equipment is required.

そして、このような従来のガス圧監視装置は。And such conventional gas pressure monitoring devices.

標準SF6ガスと被測定SF6 ガスの差圧を機絨的に
取り出しているものであり、このためSF6ガス圧の遠
方監視は出来なかった(特開昭56−114738号公
報参照)、又、一部この機械的な動きをポテンショメー
ターにより電気的信号として取出し遠方監視できるよう
にしたものがあるが。
The pressure difference between the standard SF6 gas and the SF6 gas to be measured is extracted mechanically, so remote monitoring of SF6 gas pressure was not possible (see Japanese Patent Laid-Open No. 114738/1983). There is a device that uses a potentiometer to extract this mechanical movement as an electrical signal so that it can be monitored remotely.

該ポテンショメーターの接点部の汚+As 機械的駆動
部の固渋などにより該信号の出る欠点を有するものであ
る(特開昭56−114738号公報参照)。
The potentiometer has the disadvantage that the signal is generated due to dirt on the contacts of the potentiometer and stiffness of the mechanical drive section (see Japanese Patent Laid-Open No. 114738/1983).

〔発明の目的〕[Purpose of the invention]

本発明は、このような事↑^に暴づいてなされたもので
あり、9械的駆動部を全く取除き、信頼性よく遠方監視
できるようにした絶縁ガス封入機械内のガス監視装置を
提供することを目的とするものである。
The present invention has been made in light of the above-mentioned problems, and provides a gas monitoring device for an insulating gas-filled machine that completely eliminates the need for a mechanical drive unit and enables reliable remote monitoring. The purpose is to

〔発明の概要〕[Summary of the invention]

このような目的を達成するために、本発明によるガス絶
縁開閉装置のガス圧監視装槓は、SF。
In order to achieve such an objective, the gas pressure monitoring device for the gas insulated switchgear according to the present invention is provided by SF.

ガス絶縁開閉装置のガス圧を監視すべく、片方の受圧部
には標準SF6 ガス圧を他方の受圧部には被測定SF
6ガス圧を加え、その平衡状態により作動する信号接点
を有するガス圧監視装置4において、平衡状態を半導体
センサー及びブリッジ回路によりとらえ実に増幅器によ
り増幅し出力を得るようにしたものである。
In order to monitor the gas pressure of gas insulated switchgear, one pressure receiving section is equipped with standard SF6 gas pressure, and the other pressure receiving section is equipped with the SF6 gas pressure to be measured.
In the gas pressure monitoring device 4, which has a signal contact that operates according to the equilibrium state of the gas pressure applied thereto, the equilibrium state is detected by a semiconductor sensor and a bridge circuit, and is amplified by an amplifier to obtain an output.

〔発明の実施例〕[Embodiments of the invention]

第1図は、本発明によるガス絶縁開閉装置のガス圧監視
装置に用いられる半導体センサの一実施例を示す構成図
である。同図において、まず、ガス絶縁開閉装置におけ
るSF6ガスの封入空間と連通して設けられるSFsガ
ス室3がある。このSFgガス室3と対向する部分には
、前記SFsガス室3と壁2により隔壁された標準SF
6 ガス室1が設けられている。この標準SFs ガス
室1の周囲には前記SFsガス室3と連通された別のS
Fgガス室4が前記標準SFa ガス室1を覆うように
して設けられている。これは、標準SF6ガスの温度を
被測定用のSFa ガスの温度と同一にするために採ら
れる構成としているものである。
FIG. 1 is a configuration diagram showing one embodiment of a semiconductor sensor used in a gas pressure monitoring device for a gas insulated switchgear according to the present invention. In the figure, first, there is an SFs gas chamber 3 provided in communication with the SF6 gas sealed space in the gas insulated switchgear. In the part facing this SFg gas chamber 3, there is a standard SF gas chamber 3 separated from the SFs gas chamber 3 by a wall 2.
6 A gas chamber 1 is provided. Around this standard SFs gas chamber 1, there is another S gas chamber connected to the SFs gas chamber 3.
An Fg gas chamber 4 is provided to cover the standard SFa gas chamber 1. This configuration is adopted to make the temperature of the standard SF6 gas the same as the temperature of the SFa gas to be measured.

そして、前記SF6ガス室6および標準SFsガス室1
のそれぞれの側壁の一部にはダイヤフラム9.10が備
えられ、これらダイヤフラム9゜10の裏側にはシリコ
ンオイルが充填された室12.13が設けられ、この室
12.13に充填されたシリコンオイルはセンターダイ
ヤフラム14と表裏面に押圧がかかる状態となっている
Then, the SF6 gas chamber 6 and the standard SFs gas chamber 1
A diaphragm 9.10 is provided on a part of each side wall of the diaphragm 9.10, and a chamber 12.13 filled with silicone oil is provided on the back side of the diaphragm 9.10. The oil is in a state where pressure is applied to the center diaphragm 14 and the front and back surfaces.

さらに、前記センターダイヤフラム14の表裏面におけ
るシリコンオイルを介した圧力は管15゜16を通じて
半導体センサ素子5の表裏面に加わるようになっている
Furthermore, pressure via the silicone oil on the front and back surfaces of the center diaphragm 14 is applied to the front and back surfaces of the semiconductor sensor element 5 through pipes 15 and 16.

この半導体センサ素子5から得られる電気信号は、増幅
器6によって増幅されるようになっている。半導体セン
サ素子5からの眠気信号は、温度が同一の標準SF6ガ
スの圧力に対するSF6ガスの圧力に対応するものであ
り、第2図に示すように、ブリッジ回路7を介して、変
換器8にその圧力端が表示されるようになっている。
The electrical signal obtained from this semiconductor sensor element 5 is amplified by an amplifier 6. The drowsiness signal from the semiconductor sensor element 5 corresponds to the pressure of SF6 gas with respect to the pressure of standard SF6 gas having the same temperature, and is sent to the converter 8 via the bridge circuit 7, as shown in FIG. The pressure end is now displayed.

このようにすれば、すべて電子部材の利用によってガス
絶縁開閉装置のガス圧を測定することができることから
、従来みられたようなポテンショメーターの接点部の汚
損、機械的、駆動部の固渋等による誤信号の発生の憂い
はなくなる。
In this way, the gas pressure of the gas insulated switchgear can be measured by using all electronic components, so it is possible to measure the gas pressure of the gas insulated switchgear by using all electronic components. There will be no need to worry about false signals.

゛また。圧力値を表示する変換器8は配線によってガス
絶縁開閉装置から光分離することが可能となることから
、遠方監視することができるようになる。
゛Again. Since the transducer 8 that displays the pressure value can be optically separated from the gas-insulated switchgear by wiring, it can be monitored remotely.

〔発明の効果〕〔Effect of the invention〕

以上説明したことから明らかなように、本発明によるガ
ス絶縁開閉装置のガス圧監視装置によハば、SFa ガ
ス絶もす開閉装置のガス圧を監視すべく、片方の受圧部
には標u S F 6ガス圧を他方の受圧部には被測定
8P6ガス圧を加え、その平衡状・川により作動する信
号接点を有するガス圧監視装置において、平衡状態を半
導体センター及びブリッジ回路によりとらえ実にJ・4
幅器により増幅し出力を得るようにしていることから、
配えjのみを用いることによって遠方監視することがで
きるようになる。また、機械的手段は全く用いていない
ことから、たとえば接点部の汚損、機械的駆動部の固渋
等がなく、したがって、誤信号の発生する憂いはなくな
る。
As is clear from the above explanation, according to the gas pressure monitoring device for a gas insulated switchgear according to the present invention, in order to monitor the gas pressure of the SFa gas-insulated switchgear, one pressure receiving part is equipped with a sign U. The S F 6 gas pressure is applied to the other pressure receiving part, and the 8P6 gas pressure to be measured is applied, and in a gas pressure monitoring device that has a signal contact that operates depending on the equilibrium state and flow, the equilibrium state is captured by the semiconductor center and the bridge circuit, and the actual J・4
Since the output is amplified by a amplifier,
Remote monitoring becomes possible by using only layout j. Furthermore, since no mechanical means are used, there is no possibility of contamination of the contact portions, stiffness of the mechanical drive portion, etc., and therefore there is no need to worry about the generation of erroneous signals.

【図面の簡単な説明】[Brief explanation of drawings]

第1図及び第2図は本発明によるガス絶縁開閉装置Jの
ガス圧−転視装置gの一実施例を示す;陶成崗であり、
第1図はガス圧検知手段、第2図はその回路構成を示す
図である。 5・・・半導体センサー、6・・・増幅器、7・・・ブ
リッジ回路、8・・・変換器。
FIG. 1 and FIG. 2 show an embodiment of the gas pressure-viewing device g of the gas insulated switchgear J according to the present invention;
FIG. 1 is a diagram showing the gas pressure detection means, and FIG. 2 is a diagram showing its circuit configuration. 5... Semiconductor sensor, 6... Amplifier, 7... Bridge circuit, 8... Converter.

Claims (1)

【特許請求の範囲】[Claims] 1、SF_6ガス絶縁開閉装置のガス圧を監視すべく、
片方の受圧部には標準SF_6ガス圧を他方の受圧部に
は被測定SF_6ガス圧を加え、その平衡状態により作
動する信号接点を有するガス圧監視装置において、平衡
状態を半導体センサー及びブリッジ回路によりとらえ更
に増幅器により増題し出力を得るようにしたことを特徴
とするガス絶縁開閉装置のガス圧監視装置。
1. To monitor the gas pressure of SF_6 gas insulated switchgear,
Standard SF_6 gas pressure is applied to one pressure receiving part, and SF_6 gas pressure to be measured is applied to the other pressure receiving part, and in a gas pressure monitoring device that has a signal contact that operates depending on the equilibrium state, the equilibrium state is detected by a semiconductor sensor and a bridge circuit. A gas pressure monitoring device for a gas insulated switchgear, characterized in that the pressure is further increased by an amplifier to obtain an output.
JP18515285A 1985-08-23 1985-08-23 Apparatus for monitoring pressure of gas of gas insulating switch apparatus Pending JPS6246226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18515285A JPS6246226A (en) 1985-08-23 1985-08-23 Apparatus for monitoring pressure of gas of gas insulating switch apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18515285A JPS6246226A (en) 1985-08-23 1985-08-23 Apparatus for monitoring pressure of gas of gas insulating switch apparatus

Publications (1)

Publication Number Publication Date
JPS6246226A true JPS6246226A (en) 1987-02-28

Family

ID=16165763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18515285A Pending JPS6246226A (en) 1985-08-23 1985-08-23 Apparatus for monitoring pressure of gas of gas insulating switch apparatus

Country Status (1)

Country Link
JP (1) JPS6246226A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8105741B2 (en) 2007-03-28 2012-01-31 Ricoh Company, Ltd. Method and apparatus for manufacturing toner, and electrophotographic toner manufactured by the method
US8137087B2 (en) 2007-04-05 2012-03-20 Ricoh Company, Ltd. Toner preparation method and apparatus, and toner prepared thereby
US8540169B2 (en) 2009-02-09 2013-09-24 Murata Manufacturing Co., Ltd. Atomizing member and atomizer including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114738A (en) * 1980-02-15 1981-09-09 Hitachi Ltd Monitoring device for gas in insulating-gas sealing equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114738A (en) * 1980-02-15 1981-09-09 Hitachi Ltd Monitoring device for gas in insulating-gas sealing equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8105741B2 (en) 2007-03-28 2012-01-31 Ricoh Company, Ltd. Method and apparatus for manufacturing toner, and electrophotographic toner manufactured by the method
US8137087B2 (en) 2007-04-05 2012-03-20 Ricoh Company, Ltd. Toner preparation method and apparatus, and toner prepared thereby
US8540169B2 (en) 2009-02-09 2013-09-24 Murata Manufacturing Co., Ltd. Atomizing member and atomizer including the same

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