JPH0642197Y2 - Gas density monitoring device for gas insulation equipment - Google Patents
Gas density monitoring device for gas insulation equipmentInfo
- Publication number
- JPH0642197Y2 JPH0642197Y2 JP1987059713U JP5971387U JPH0642197Y2 JP H0642197 Y2 JPH0642197 Y2 JP H0642197Y2 JP 1987059713 U JP1987059713 U JP 1987059713U JP 5971387 U JP5971387 U JP 5971387U JP H0642197 Y2 JPH0642197 Y2 JP H0642197Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure
- pointer
- temperature
- monitoring device
- 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.)
- Expired - Lifetime
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Description
【考案の詳細な説明】 A.産業上の利用分野 本考案は絶縁ガス封入電気機器等のガス密度監視装置に
関する。[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a gas density monitoring device such as an electric device filled with an insulating gas.
B.考案の概要 本考案は絶縁ガス封入電気機器等のガス密度監視装置に
おいて、 同心軸上で各々別々に回動する指針板及び指針と、前記
指針にガス絶縁機器容器内の圧力に応動して回動力を与
える第１の圧力／回動変換部と、前記指針板に感温筒内
の圧力に応動し、かつ圧力増減時に前記指針と同じ方向
の回動力を与える第２の圧力／回動変換部とを備え、前
記感温筒内にガスを封入して、該感温筒を前記ガス絶縁
機器容器内の測温部に配設することにより、ガス漏れの
程度を目視することができるようにしたものである。B. Outline of the Invention The present invention relates to a gas density monitoring device for an insulating gas-filled electric device or the like, and a pointer plate and a pointer that rotate separately on a concentric shaft, and the pointer responds to the pressure in the container of the gas-insulated device. And a second pressure / rotation conversion unit that applies a turning force in the same direction as the pointer when the pressure increases or decreases in response to the pressure in the temperature-sensitive cylinder on the pointer plate. A dynamic conversion unit is provided, and gas is enclosed in the temperature sensing cylinder, and the temperature sensing cylinder is disposed in the temperature measuring unit in the gas insulating device container, so that the degree of gas leakage can be visually checked. It was made possible.
C.従来の技術 SF6ガスはその優れた絶縁性能と冷却性能を有するた
め、変圧器やしゃ断器等の封入ガスとして広く用いられ
ている。しかし、この絶縁及び冷却性能は封入されたSF
6ガスの密度で決定されるためにかかるガス絶縁機器で
はガス漏れ等によるガス密度の低下を常に監視する必要
がある。そこで、従来からガス密度の低下を常に監視す
るためにガス密度リレー等を用いたガス密度監視装置が
使用されている。本監視装置では、所定限界値よりガス
密度が低下した場合に警報を鳴動させることにより、ガ
ス密度の監視を行なっている。しかし、かかる監視装置
ではガス密度が限界値より低下した時にのみ警報を鳴動
するにすぎず、ガス密度がどの程度になっているかは機
器に取り付けた圧力計と温度計の指示値を読みとって、
この読取り指示値と温度圧力特性銘板から初期封入圧
（定格圧力）との差を求めて判断していた。即ち、第４
図はこのような監視装置の一例を示す説明図である。こ
の図において、ａはガス密度監視装置を備えた例えば変
圧器で、この変圧器はガス連絡通路b,cを介して冷却器
ｄと変圧器本体等のガス絶縁機器容器ｅ内とを連結して
成るものである。ガス絶縁機器容器ｅ内には、変圧器を
構成する鉄心ｇとコイルｆが備えられており、この鉄心
ｇ及びコイルｆに対流又はファンの作動等により冷却器
ｄ内のSF6ガスがガス連結通路b,cを経て循環されるよう
になっている。ガス絶縁機器容器ｅに取付けられている
のは、圧力計ｊと温度計h,iで、圧力計ｊはガス絶縁機
器容器ｅ内の圧力を測定するもので、また温度計ｈはガ
ス絶縁機器容器ｅ内のガス密度を測定するものである。
温度計ｉは圧力管理用の温度計で、自冷式変圧器の場合
等では、容器内の上と下とではガスの温度差が大きく、
温度計ｈの指示値で容器内の圧力を監視すると、大きな
誤差を生ずるためにガスの平均温度をとるために設けら
れたものである。C. Conventional technology SF 6 gas is widely used as a sealed gas for transformers and circuit breakers because of its excellent insulation and cooling properties. However, this insulation and cooling performance is
6 Since it is determined by the density of gas, it is necessary to constantly monitor the decrease in gas density due to gas leakage in such gas-insulated equipment. Therefore, conventionally, a gas density monitoring device using a gas density relay or the like has been used to constantly monitor a decrease in gas density. This monitoring device monitors the gas density by sounding an alarm when the gas density falls below a predetermined limit value. However, such a monitoring device only sounds an alarm only when the gas density falls below the limit value, and reads the readings of the pressure gauge and thermometer attached to the equipment to determine the gas density,
The judgment was made by obtaining the difference between the read indication value and the initial enclosure pressure (rated pressure) from the temperature-pressure characteristic nameplate. That is, the fourth
The figure is an explanatory view showing an example of such a monitoring device. In this figure, a is, for example, a transformer equipped with a gas density monitoring device. This transformer connects a cooler d and a gas-insulated equipment container e such as a transformer body via gas communication passages b and c. It consists of An iron core g and a coil f forming a transformer are provided in the gas-insulated equipment container e, and SF 6 gas in the cooler d is gas-coupled to the iron core g and the coil f by convection or operation of a fan. It is circulated through the passages b and c. Attached to the gas-insulated equipment container e are a pressure gauge j and thermometers h, i. The pressure gauge j measures the pressure in the gas-insulated equipment container e, and the thermometer h is a gas-insulated equipment. The gas density in the container e is measured.
The thermometer i is a thermometer for pressure management, and in the case of a self-cooling type transformer, the temperature difference between the gas above and below the container is large,
When the pressure in the container is monitored by the indicated value of the thermometer h, a large error occurs, so that it is provided to obtain the average temperature of the gas.
第５図はガスの平均温度と圧力との関係を示す図で、保
証圧力及び定格圧力をあらかじめ定め、この範囲にある
場合が適正範囲であることを示し、保証圧力以下の場合
には、危険範囲にあることを示している。Fig. 5 is a graph showing the relationship between the average temperature and pressure of gas. The guaranteed pressure and rated pressure are determined in advance, and the case where the guaranteed pressure and rated pressure are within this range is the proper range. It is in the range.
D.考案が解決しようとする問題点 ガス絶縁機器容器ｅ内の圧力は、SF6ガスの漏れがある
場合はもちろんのこと、ガス漏れの無い場合でも容器内
の温度変化により変化する。よって従来のガス密度監視
装置では、監視者が機器に取付けられた圧力計と温度計
の両方の指示値を読みとり、第５図に示すような圧力−
温度特性銘板上にその指示値をプロットして、温度−ガ
ス封入圧との差から適正範囲内であるか否かを確認して
いる。また適正範囲外になったときには、ガスを供給す
るか又は警報の鳴動等により操作者にいち早く危険範囲
にあることを知らせる。D. Problems to be solved by the device The pressure inside the gas-insulated equipment container e changes depending on the temperature change inside the container, not only when there is SF 6 gas leakage but also when there is no gas leakage. Therefore, in the conventional gas density monitoring device, the observer reads the readings of both the pressure gauge and the thermometer attached to the equipment, and the pressure-as shown in FIG.
The indicated value is plotted on the temperature characteristic name plate and it is confirmed from the difference between the temperature and the gas filling pressure whether it is within the proper range. Further, when it is out of the proper range, the operator is informed immediately that the gas is in the dangerous range by supplying gas or sounding an alarm.
しかし、このような監視装置では、ガス絶縁機器容器ｅ
内のガスの温度や圧力を測定する温度計ｈ及びｉと圧力
計ｊが必要になり、またこれら計測値を操作者が目視
し、これらの値を温度−圧力特性銘板にプロットするた
め、監視者の目視及び監視者の銘板上への測定値のプロ
ットという作業を伴うため、保守管理人が必要になる。
さらにプロットミスによる測定誤差を生じ、信頼性が低
下してしまうという不都合があった。However, in such a monitoring device, the gas-insulated equipment container e
Thermometers h and i for measuring the temperature and pressure of the gas inside and pressure gauge j are required, and the operator visually observes these measured values and plots these values on the temperature-pressure characteristic nameplate, so monitoring A maintenance person is required because the work of visual inspection by the operator and plotting of the measured values on the nameplate of the supervisor is involved.
Further, there is a disadvantage that a measurement error occurs due to a plot mistake and reliability is lowered.
そこで、本考案は温度−圧力特性銘板を不要とし、監視
者が一目で封入ガス圧力及びガス密度が適正であるか否
かを判断でき、しかも構成が平易で自動監視制御ができ
るガス密度監視装置を提供することを目的とするもので
ある。In view of this, the present invention eliminates the need for a temperature-pressure characteristic nameplate, allows a monitor to determine at a glance whether or not the enclosed gas pressure and gas density are appropriate, and has a simple structure and allows automatic monitoring and control. It is intended to provide.
E.問題点を解決するための手段 上記問題点を解決するための手段として本考案は、同心
軸上で各々別々に回動する指針板及び指針と、前記指針
にガス絶縁機器容器内の圧力に応動して回動力を与える
第１の圧力／回動変換部と、前記指針板に感温筒内の圧
力に応動し、かつ圧力の増減時に前記指針と同じ方向の
回動力を与える第２の圧力／回動変換部とを備え、前記
感温筒内にガスを封入して、該感温筒を前記ガス絶縁機
器容器内の測温部に配設したことを特徴とする。E. Means for Solving Problems As a means for solving the above problems, the present invention has a pointer plate and a pointer that rotate separately on a concentric shaft, and a pressure inside a gas-insulated equipment container. A first pressure / rotational conversion unit for applying a turning force in response to the pressure, and a second pressure applying a turning force in the same direction as the pointer when the pressure increases or decreases in response to the pressure in the temperature sensitive cylinder on the pointer plate. And a pressure / rotation conversion unit of (1), gas is enclosed in the temperature sensing cylinder, and the temperature sensing cylinder is disposed in the temperature measuring unit in the gas insulating device container.
F.作用 感温筒10はガス絶縁機器容器５内に配設され、この容器
５内には一定圧力のガスが封入されているため、ガス絶
縁機器容器５内のガス漏れがない場合には、ガス絶縁機
器容器５内の温度が変化してガス圧が変化しても両者の
第１及び第２の圧力／回動変換部P1/R,P2/Rはほとんど
同じ条件で変化し、指針20と指針板17との相対関係位置
がほとんど変わらない。しかし、ある温度の状況下でガ
ス漏れがあった場合は、ガス絶縁機器容器５内の圧力が
低下するが、感温筒10内の圧力は変わらないので、指針
のみが危険圧力範囲方向を指示する。従って、本装置で
は指針板17の目盛等により、そのガス漏れの程度等を目
視することができる。また指針板17と指針20が危険圧力
範囲になったときに接触する接点を設ければ、接点の接
触により電磁弁（図示しない）等を制御して自動的にガ
スを供給できる。F. Action The temperature-sensing tube 10 is arranged in the gas-insulated equipment container 5, and since gas of a constant pressure is enclosed in this container 5, if there is no gas leakage in the gas-insulated equipment container 5. , Even if the temperature in the gas-insulated equipment container 5 changes and the gas pressure changes, the first and second pressure / rotation conversion parts P1 / R and P2 / R of both of them change under almost the same conditions. The relative position between 20 and the pointer plate 17 remains almost unchanged. However, if there is a gas leak under certain temperature conditions, the pressure in the gas-insulated equipment container 5 decreases, but the pressure in the temperature-sensitive cylinder 10 does not change, so only the pointer indicates the direction of the dangerous pressure range. To do. Therefore, in the present device, the degree of gas leakage can be visually checked by the scale of the pointer plate 17 or the like. Further, if a contact is provided which makes contact between the pointer plate 17 and the pointer 20 when they are in the dangerous pressure range, the solenoid valve (not shown) or the like can be controlled by the contact of the contact to automatically supply gas.
G.実施例 次に、本考案の一実施例を第１図乃至第３図を参照して
詳細に説明する。第１図乃至第３図は本考案の一実施例
を説明するための図で、このうち第１図はガス密度監視
装置を備えた装置の断面図、第２図は圧力変換部の説明
図、第３図はゲージ本体の表面図を示す。G. Embodiment Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 are views for explaining one embodiment of the present invention, in which FIG. 1 is a cross-sectional view of a device equipped with a gas density monitoring device, and FIG. 2 is an explanatory view of a pressure conversion part. 3 shows a surface view of the gauge body.
これらの図において、符号１はガス密度を監視する装置
（被ガス密度監視装置）で、この被ガス密度監視装置１
は、ガス連結通路2,3を介して冷却器４とガス絶縁機器
容器５内を連結して成るものである。ガス供給通路６は
冷却器４とSF6ガス供給槽７を連結するもので、被ガス
密度監視装置１内のガス量が不足したときに、ガス供給
通路６に設けた図示しないバルブ等を作動させてガス供
給槽７より冷却器４を介してガス絶縁機器容器５内に供
給する。ガス絶縁機器容器５内は変圧器部Ａを構成する
鉄心９及びコイル８と感温筒10から成り、変圧器部Ａに
はガス連結通路2,3に設けた図示しないファンの作動に
より又は自然対流によって冷却器４よりSF6ガスが循環
されるようになっている。通路11はガス絶縁機器容器５
内とゲージ部12を連結するもので、このゲージ部12は通
路13を経て感温筒10に連結されている。In these figures, reference numeral 1 is a device for monitoring the gas density (gas density monitoring device).
Is configured to connect the cooler 4 and the inside of the gas-insulated equipment container 5 via the gas connection passages 2 and 3. The gas supply passage 6 connects the cooler 4 and the SF 6 gas supply tank 7, and operates a valve or the like (not shown) provided in the gas supply passage 6 when the amount of gas in the gas density monitoring device 1 becomes insufficient. Then, the gas is supplied from the gas supply tank 7 into the gas-insulated equipment container 5 via the cooler 4. The gas-insulated equipment container 5 is composed of an iron core 9 and a coil 8 and a temperature-sensing cylinder 10 which constitute the transformer section A. SF 6 gas is circulated from the cooler 4 by convection. Passage 11 is gas insulated equipment container 5
The inside is connected to the gauge portion 12, and the gauge portion 12 is connected to the temperature sensitive tube 10 via the passage 13.
次に、感温筒10及びゲージ部12の機構について第２図及
び第３図を参照して説明する。感温筒10は第１図に示す
ように、ガス絶縁機器容器５の上下に亙った筒状のガス
封入容器から成り、この筒10内には、ガス絶縁機器容器
５内に密封されるガスと同じSF6ガス（漏れる必要がな
い場合は異なったガスでもよい）が封入されると共に、
ガス絶縁機器容器５内に封入する定格圧力（20℃におけ
る）と略同じ圧力P1のガスが封入される。そして、この
感温筒10には圧力変換部15（ブルドレ管又はベロー等か
ら成る）が設けられており、感温筒10内の圧力変化分を
これに比例した機械的位置変位に変える。また、この機
械的位置の変化は、交換部16によって指針板17に回動力
を付与するようになっており、この圧力変換部15と変換
部16で第１の圧力／回動変換部P1/Rを構成し、例えば感
温筒10内の圧力が下がったとき指針板17を第３図の時計
方向に回動させる。また、圧力変換部18は第１図に示す
ようにガス絶縁機器容器５内の圧力P2が通路11によって
導かれガス絶縁機器容器５内の圧力変化分をこれに比例
した機械的位置の変位に変える。またこの機械的位置の
変位は変換部19によって指針20に回動力を付与するよう
になっている。この圧力変換部18と変換部19で第２の圧
力／回動変換部P2/Rを構成し、例えばガス絶縁機器容器
５内の圧力P2が下がったとき、指針20を第３図の反時計
方向に回動させる。なお、21は目盛板、22はゲージ本体
である。また接点23は、指針板17に設けられているもの
で、接点24は指針20に設けられたものである。これら接
点23,24は相対向する位置に設けられ、ガス圧が危険範
囲になったときに接触して警報器Ｂを動作させる。Next, the mechanism of the temperature sensitive cylinder 10 and the gauge portion 12 will be described with reference to FIGS. 2 and 3. As shown in FIG. 1, the temperature-sensitive cylinder 10 is composed of a cylindrical gas-filled container which is arranged above and below the gas-insulated equipment container 5, and the cylinder 10 is hermetically sealed in the gas-insulated equipment container 5. The same SF 6 gas as the gas (a different gas may be used if it does not need to leak) is filled,
A gas having a pressure P1 that is substantially the same as the rated pressure (at 20 ° C.) sealed in the gas-insulated equipment container 5 is sealed. Further, the temperature sensing cylinder 10 is provided with a pressure conversion unit 15 (made up of a burdle tube, a bellows or the like), and changes the pressure change in the temperature sensing cylinder 10 into a mechanical position displacement proportional thereto. Further, the change of the mechanical position is such that the exchanging section 16 gives a rotating force to the pointer plate 17, and the pressure converting section 15 and the converting section 16 make the first pressure / rotation converting section P1 / R is constituted, and, for example, when the pressure inside the temperature sensitive cylinder 10 is lowered, the pointer plate 17 is rotated clockwise in FIG. Further, as shown in FIG. 1, the pressure converting unit 18 guides the pressure P2 in the gas-insulated equipment container 5 through the passage 11 and changes the pressure change in the gas-insulated equipment container 5 into a mechanical position displacement proportional to this. Change. In addition, the displacement of the mechanical position is adapted to apply a turning force to the pointer 20 by the conversion unit 19. The pressure conversion unit 18 and the conversion unit 19 constitute a second pressure / rotation conversion unit P2 / R. For example, when the pressure P2 in the gas-insulated equipment container 5 decreases, the pointer 20 is moved counterclockwise in FIG. Rotate in the direction. In addition, 21 is a scale plate and 22 is a gauge main body. The contact point 23 is provided on the pointer plate 17, and the contact point 24 is provided on the pointer 20. These contacts 23, 24 are provided at positions facing each other and come into contact with each other when the gas pressure is in a dangerous range to operate the alarm device B.
尚、指針板17には、第３図に示すように安全，危険等を
一目でわかるように、色分けした目盛がある。即ち、適
正範囲が緑色、危険範囲が赤色を示し、また初期封入圧
力レベルの誤差を見込んだ範囲を橙色で区分している。The pointer plate 17 has color-coded scales as shown in FIG. 3 so that safety, danger, etc. can be seen at a glance. That is, the proper range is green, the dangerous range is red, and the range in which the error of the initial enclosed pressure level is expected is divided into orange.
次に、本実施例の作用について説明する。Next, the operation of this embodiment will be described.
今、ガス漏れがない場合には感温筒10内には、ガス絶縁
機器容器５内の定格圧力と略同じ圧力のガスが封入され
ているので、例えばガス絶縁機器容器５内の温度が上昇
して圧力P2が上昇すれば、感温筒10内の圧力P1も略同様
に上昇するため、指針20と指針板17との相対位置はほと
んどそのままの状態で第３図の時計方向に回動する。従
って、指針20は目盛板21の目盛上では圧力上昇分移動し
て圧力上昇を指示するが、指針板17との関係では緑領域
内にあり、ほとんど変動がない。また、例えば温度が下
がった場合には、その逆に動作するが、指針板17と指針
20の相対位置は変化しない。従って、接点23,24間の距
離も変化しない。If there is no gas leakage, the temperature-sensing cylinder 10 is filled with a gas having substantially the same pressure as the rated pressure in the gas-insulated equipment container 5, so that the temperature in the gas-insulated equipment container 5 rises, for example. Then, if the pressure P2 rises, the pressure P1 in the temperature sensing cylinder 10 rises in a similar manner, so that the relative position between the pointer 20 and the pointer plate 17 is rotated in the clockwise direction in FIG. To do. Therefore, the pointer 20 moves on the scale of the scale plate 21 by an amount corresponding to the pressure increase and instructs the pressure increase, but in relation to the pointer plate 17, the pointer 20 is in the green region, and there is almost no change. Also, for example, when the temperature drops, the operation is reversed, but the pointer plate 17 and the pointer
The relative position of 20 does not change. Therefore, the distance between the contact points 23 and 24 does not change.
次に、ガス絶縁機器容器５内にガス漏れがある場合に
は、その容器５内の圧力P2が下がる。圧力P2が下がる
と、指針板17はそのままで、指針20のみが第３図の反時
計方向に回動し、赤色の危険範囲に近づく。そして、そ
のガス漏れがある温度時における保証圧力以下になる
と、指針20の接点23,24が互いに接触し、警報器Ｂが動
作する。このときには、ガス供給通路６のバルブを開い
て、冷却器７から一定量のガスを供給するか警報を発し
て保守員にガスの供給をうながす。また、監視員が常駐
しているときには、温度計を見ることなく指針板17を見
れば、一見して封入ガスの密度状態が推定できる。Next, when there is a gas leak in the gas-insulated equipment container 5, the pressure P2 in the container 5 decreases. When the pressure P2 is lowered, the pointer plate 17 remains as it is, and only the pointer 20 rotates counterclockwise in FIG. 3 to approach the red danger zone. Then, when the gas leakage falls below the guaranteed pressure at a certain temperature, the contacts 23 and 24 of the pointer 20 come into contact with each other, and the alarm B operates. At this time, the valve of the gas supply passage 6 is opened, and a certain amount of gas is supplied from the cooler 7 or an alarm is issued to prompt the maintenance personnel to supply the gas. Further, when the observer is resident, the density state of the enclosed gas can be estimated at a glance by looking at the pointer plate 17 without looking at the thermometer.
尚、ガス絶縁機器容器５内の温度は、上、中、下に温度
差があるが、第１図に示すように上、中、下に亙るよう
な感温筒10を設けることで、ガス絶縁機器容器５内の平
均温度が検出することができ、測定誤差を生じないよう
にすることができる。しかし、ガスの３色制御循環等で
上、中、下の温度差が少ない場合には、実験的にまたは
計算上平均温度部分を求めて、その測温部だけに前記感
温筒10を設けたものであってもよい。The temperature inside the gas-insulated equipment container 5 has a difference in temperature between upper, middle, and lower. However, as shown in FIG. 1, by providing the temperature-sensing cylinder 10 as shown in FIG. The average temperature in the insulation device container 5 can be detected, and a measurement error can be prevented. However, when there is little difference between the upper, middle, and lower temperatures due to the three-color control circulation of the gas, the average temperature portion is experimentally or calculated and the temperature sensing tube 10 is provided only in the temperature measuring portion. It may be
また、上記の実施例においては、感温筒10内に封入した
ガスの圧力をガス絶縁機器容器５内の定格圧力とほぼ同
じにした場合について説明したが、この封入圧力はガス
絶縁機器容器５内の定格圧力と同じくする必要はなく、
異った場合でも圧力／回動変換部P1/R又はP2/Rの変換比
を変えれば同様の作用効果を生じさせることができる。Further, in the above embodiment, the case where the pressure of the gas sealed in the temperature sensitive cylinder 10 is set to be substantially the same as the rated pressure in the gas insulating device container 5 has been described. It does not have to be the same as the rated pressure inside,
Even if they are different, the same action and effect can be produced by changing the conversion ratio of the pressure / rotation conversion unit P1 / R or P2 / R.
H.考案の効果 本考案は、上述のとおり構成されているので、次の記載
する効果を奏する。H. Effect of the Invention Since the present invention is configured as described above, it has the following effects.
（１）指針によりガス絶縁機器内のガス圧力を指示し、
指示板によりガス絶縁機器内に設けた感温筒内のガス圧
を指示させたので、指針の指示により一目でガス絶縁機
器内のガス圧がわかると共に、指針と指示板との関係に
よりガス密度を知ることができる。(1) Indicate the gas pressure in the gas insulation equipment with the pointer,
The gas pressure in the temperature-sensing cylinder provided in the gas insulation device was instructed by the indicator plate, so the gas pressure in the gas insulation device can be seen at a glance by the indication of the pointer, and the gas density can be determined by the relationship between the pointer and the indicator plate. You can know.
（２）このため従来のように温度及び圧力を監視者が読
みとり、温度−圧力特性銘板にそのデータをプロットし
て、ガス絶縁機器容器のガス密度の状況を判断するとい
う手間を省くことができると共に、信頼性の高い保守管
理をすることができる。(2) For this reason, it is possible to save the trouble of a monitor reading the temperature and pressure and plotting the data on a temperature-pressure characteristic nameplate to judge the gas density condition of the gas-insulated equipment container as in the conventional case. At the same time, highly reliable maintenance management can be performed.
（３）指針及び指示板に接点を設けることにより、従来
のガス密度リレーによってガス密度を監視する必要がな
くなり、装置の構成を平易にすることができるので、ガ
ス密度監視装置の低コスト化を図ることができると共
に、遠隔地や無人所での自動ガス供給などが可能とな
る。(3) By providing the contact points on the pointer and the indicating plate, it is not necessary to monitor the gas density by the conventional gas density relay, and the configuration of the device can be simplified, thus reducing the cost of the gas density monitoring device. In addition to being able to achieve this, it is possible to automatically supply gas to remote places and unmanned places.
（４）ガス絶縁機器容器内及び感温筒内のガス圧をそれ
ぞれ検出し圧力／回動変換して指針及び指示板を振らし
ているので、精度よくガス圧及びガス密度を計測するこ
とができる。(4) Since the gas pressure in the gas-insulated equipment container and the temperature-sensitive cylinder are respectively detected and pressure / rotational conversion is performed to swing the pointer and the indicating plate, the gas pressure and the gas density can be accurately measured. it can.
第１図乃至第３図は本考案の一実施例を示す図、第４図
は従来の監視装置の一例を示す説明図、第５図はガスの
平均温度と圧力との関係を示す図である。 ５……ガス絶縁機器容器、10……感温筒、P1/R……第１
の圧力／回動変換部、P2/R……第２の圧力／回動変換
部、17……指針板、20……指針。1 to 3 are diagrams showing an embodiment of the present invention, FIG. 4 is an explanatory diagram showing an example of a conventional monitoring device, and FIG. 5 is a diagram showing the relationship between the average temperature and pressure of gas. is there. 5: Gas-insulated equipment container, 10: Temperature sensing tube, P1 / R: 1st
Pressure / rotation conversion part, P2 / R ... second pressure / rotation conversion part, 17 ... pointer plate, 20 ... pointer.
Claims (1)
絶縁機器容器内のガスの温度に感応して筒内部のガス圧
力が変化する感温筒と、 同心上で各々別々に回動する指針板及び指針と、 前記指針に前記ガス絶縁機器内のガス圧力に応動して回
転を与える第１の圧力／回動変換部と、 前記指針板に前記感温筒内の圧力に応動し、かつ圧力の
増減時に前記指針と同じ方向の回動力を与える第２の圧
力／回動変換部と、 からなることを特徴としたガス絶縁機器用ガス密度監視
装置。1. A temperature-sensing cylinder, which is composed of a cylinder in which gas is enclosed, and in which the gas pressure inside the cylinder changes in response to the temperature of the gas in the gas-insulated equipment container, and is concentrically rotated separately. A pointer plate and a pointer, a first pressure / rotation conversion unit that applies rotation to the pointer in response to gas pressure in the gas-insulated device, and the pointer plate responds to the pressure in the temperature-sensitive cylinder. And a second pressure / rotation conversion unit that applies a rotational force in the same direction as the pointer when the pressure increases and decreases, and a gas density monitoring device for gas insulation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987059713U JPH0642197Y2 (en) | 1987-02-20 | 1987-04-20 | Gas density monitoring device for gas insulation equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2361587 | 1987-02-20 | ||
| JP62-23615 | 1987-02-20 | ||
| JP1987059713U JPH0642197Y2 (en) | 1987-02-20 | 1987-04-20 | Gas density monitoring device for gas insulation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6417455U JPS6417455U (en) | 1989-01-27 |
| JPH0642197Y2 true JPH0642197Y2 (en) | 1994-11-02 |
Family
ID=31717504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987059713U Expired - Lifetime JPH0642197Y2 (en) | 1987-02-20 | 1987-04-20 | Gas density monitoring device for gas insulation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642197Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59200943A (en) * | 1983-04-28 | 1984-11-14 | Mitsubishi Electric Corp | Density detector |
-
1987
- 1987-04-20 JP JP1987059713U patent/JPH0642197Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6417455U (en) | 1989-01-27 |
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