JPS59187236A - Apparatus for detecting vacuum degree - Google Patents
Apparatus for detecting vacuum degreeInfo
- Publication number
- JPS59187236A JPS59187236A JP6183883A JP6183883A JPS59187236A JP S59187236 A JPS59187236 A JP S59187236A JP 6183883 A JP6183883 A JP 6183883A JP 6183883 A JP6183883 A JP 6183883A JP S59187236 A JPS59187236 A JP S59187236A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- control circuit
- degree
- circuit
- optical signal
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 238000009429 electrical wiring Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は真空度検出装置に関するもので、例えば開閉
装置に用いられる真空スイッチ管の真空度を検出する真
空度検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum level detection device, and more particularly, to a vacuum level detection device for detecting the vacuum level of a vacuum switch tube used in a switching device, for example.
第１図は従来の真空度検出装置を示す電気結線図である
。第１図において、（１）は真空度検出装置、（２ａ）
、（２ｂ）は真空度検出袋Ｎ（１）の入力端子、（３）
は入力端子（２ａ）、（２ｂ）に印加される入力電圧を
調整するスライダック、（４）はスライダック（３）で
調整された入力電圧を変圧する変圧器、（’５ａ’）、
（５ｂ）は変圧器（４）の二次電圧を取出す真空度検出
装置（１）の出力端子、（６）は変圧器（４）の−次電
圧を検出する電圧計、（７）は変圧器（４）の−次電流
を検出する電流計、（８）は真空度検出装置（１）の入
力端子（２ａ）、（２ｂ）に接続される入力電源、（９
）は開閉装置で真空度が検出される真空スイッチ管（１
０）を備えており、真空スイッチ管（１０）は真空度検
出装置（１）の出力端子（５ａ）、（５ｂ）間に接続さ
れるものである。FIG. 1 is an electrical wiring diagram showing a conventional vacuum level detection device. In Figure 1, (1) is a vacuum level detection device, (2a)
, (2b) is the input terminal of the vacuum detection bag N(1), (3)
is a slideac that adjusts the input voltage applied to the input terminals (2a) and (2b), (4) is a transformer that transforms the input voltage adjusted by the slidec (3), ('5a'),
(5b) is the output terminal of the vacuum level detection device (1) that extracts the secondary voltage of the transformer (4), (6) is the voltmeter that detects the negative voltage of the transformer (4), and (7) is the transformer (8) is an input power source connected to the input terminals (2a) and (2b) of the vacuum degree detection device (1);
) is a vacuum switch tube (1
0), and the vacuum switch tube (10) is connected between the output terminals (5a) and (5b) of the vacuum level detection device (1).
次に動作について説明する□。真空度検出装置（１）の
入力端子（２ａ）、（２’ｂ）に入力電源（８〕を接続
した後、スライダック（３）を調整して出力端子（５，
ａ）、（ｓｂ）間に得られる変圧器（４）の二次電圧を
開閉装置（９）の商用周波耐電圧値にし、真空スイッチ
管（１０）に印加する。このとき開閉装置（９）は開路
状態でなければならない。Next, I will explain the operation □. After connecting the input power supply (8) to the input terminals (2a) and (2'b) of the vacuum level detection device (1), adjust the slide duck (3) and connect the output terminals (5,
The secondary voltage of the transformer (4) obtained between a) and (sb) is set to the commercial frequency withstand voltage value of the switchgear (9) and applied to the vacuum switch tube (10). At this time, the switching device (9) must be in an open state.
真空度の正常および不良は、この印加電圧に対し電流計
（７）で測定される電流値が予め決められた値を越える
か否かにより判定される。もし真空度に異常があれ１よ
、真空８イツチ管（１０）に印加される出力端子（５ａ
）、（５ｂ）の電圧上昇過程において、電圧上昇と共に
変圧器（４〕の一次電流も増加し基準値を越えるため、
電流計（７）によって真空度の異常を検出することがで
きる。一方、真空度が正常であれば、上記商用周波耐電
圧を１０秒以上真空スイッチ管（１０）に印加しても、
変圧器（４）の−次電流は基準値を越えず、電流計（７
）によって真空度が正常であることを検出できる。The degree of vacuum is determined to be normal or defective depending on whether the current value measured by the ammeter (7) with respect to the applied voltage exceeds a predetermined value. If there is an abnormality in the degree of vacuum, the output terminal (5a) that is applied to the vacuum 8-ichi tube (10)
), (5b), the primary current of the transformer (4) also increases as the voltage increases and exceeds the reference value, so
An abnormality in the degree of vacuum can be detected by the ammeter (7). On the other hand, if the degree of vacuum is normal, even if the above commercial frequency withstand voltage is applied to the vacuum switch tube (10) for 10 seconds or more,
The negative current of the transformer (4) does not exceed the reference value, and the ammeter (7)
) can detect that the degree of vacuum is normal.
従来の真空度検出装置（１）は以上のように構成されて
おり、真空スイッチ管（１０）の真空度を検出する場合
には、開閉装置（９）をその使用回路から切離し、かつ
開放状態にしなければ真空度を検出できない欠点があっ
た。またこのため保守点検がわずられしく、かつ真空度
が劣化した状態で開閉装置（９）を開放する場合があり
、著しく信頼性を低下させる欠点があった。The conventional vacuum level detection device (1) is configured as described above, and when detecting the vacuum level of the vacuum switch tube (10), the switching device (9) is disconnected from the circuit in which it is used, and the switching device (9) is set in the open state. There was a drawback that the degree of vacuum could not be detected unless the Furthermore, maintenance and inspections are troublesome, and the switching device (9) may be opened in a state where the degree of vacuum has deteriorated, which has the disadvantage of significantly lowering reliability.
この発明は上記のような従来のものの欠点を除失するた
めになされたもので、真空スイッチ管（１０）に真空度
感応素子を取付け、真空スイッチ管（１０）の真空度を
常時監視し、万一真空劣化が発生した場合にはランプ、
ブザー等で警報を発生させると共に、自動的に開閉装置
（９）を電気系統の上位回路から切画すようにした真空
度検出装置を提供することを目的としている。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and a vacuum sensing element is attached to the vacuum switch tube (10), and the vacuum degree of the vacuum switch tube (10) is constantly monitored. In the unlikely event that vacuum deterioration occurs, the lamp
It is an object of the present invention to provide a degree of vacuum detection device which generates an alarm using a buzzer or the like and which automatically disconnects a switchgear (9) from an upper circuit of an electrical system.
以下この発明の一実施例を図について説明する。第２図
はこの発明に係る真空度検出装置の一実施例を示すブロ
ック線図である。図中第１図と同一部分には同一符号を
付している。第２図において、（１１）は真空度検出装
置■本体、（１２）は真空度検出装置本体（１１）に設
けられ例えば商用電源電圧等の入力信号が印加される入
力端子、（１３）は入力端子（１２）から印加される人
力信号を例えば基準電圧等の基準信号に変換する入力制
御回路、（１４）は光信号制御回路で入力制御回路（１
３）からの電圧によって付勢され光信号を発生するもの
である。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the degree of vacuum detection device according to the present invention. In the figure, the same parts as in FIG. 1 are given the same reference numerals. In Figure 2, (11) is the main body of the vacuum level detection device, (12) is an input terminal provided on the vacuum level detection device main body (11) to which input signals such as commercial power supply voltage are applied, and (13) is An input control circuit (14) is an optical signal control circuit that converts a human input signal applied from an input terminal (12) into a reference signal such as a reference voltage.
3), which generates an optical signal when energized by the voltage from 3).
（１５）は光フアイバーケーブルで、光信号制御回路（
１４）からの光を後述の真空度感応素子（１６）に照射
する第１の光ファイバー（１５−ａ）と、真空度感応素
子（１６）からの反射光を光信号制御回路（１４）に伝
える第２の光ファイバー（１５ｂ）とを備えている。（
１６）は例えば外圧（大気圧）と内圧（真空）との圧力
差に応じて歪んで光の反射状態（例えば反射方向）が変
化する真空度感応素子であり、真空スイッチ管（１０）
に取付けられている。（１７）は検出回路で、入力制御
回路（１３）からの基準信号と真空度感応素子（１６）
からの反射信号である光信号制御回路（１４）の受信信
号とを比較し、受信信号が基準信号より低ければ出力を
生じるものである。（１８）、（１９）は検出回路（１
７）の出力印加時に導通状態となる第１．第２のトラン
ジスタ、（２０）、（２１）は真空度検出装置本体（１
１）に設けられ第１゜第２のトランジスタ（１８）、（
１９）の導通時に出力を生じる第１．第２の出力端子、
（２２）は第１の出力端子（２０）の出力によって付勢
され警報を発生するランプ、ブザー等の警報装置、（２
３）は第２の出力端子（２１）の出力によって付勢され
開閉装置（９）の電気系統の上位回路から切離す継電器
コイル、（２４）は開閉装置（９）に接続される負荷、
（２５）は負荷（２４）を開閉装置！ （９）に接続す
るケーブルである。(15) is an optical fiber cable, and the optical signal control circuit (
A first optical fiber (15-a) that irradiates light from 14) to a vacuum sensing element (16) (described later), and transmits reflected light from the vacuum sensing element (16) to an optical signal control circuit (14). A second optical fiber (15b) is provided. (
16) is a vacuum sensitive element that distorts and changes the reflection state (for example, direction of reflection) of light according to the pressure difference between external pressure (atmospheric pressure) and internal pressure (vacuum), and is a vacuum switch tube (10).
installed on. (17) is a detection circuit, which receives the reference signal from the input control circuit (13) and the vacuum sensing element (16).
The reflected signal from the optical signal control circuit (14) is compared with the received signal of the optical signal control circuit (14), and if the received signal is lower than the reference signal, an output is generated. (18) and (19) are the detection circuit (1
7) becomes conductive when the output is applied. The second transistors (20) and (21) are the main body of the vacuum level detection device (1
1), the first and second transistors (18), (
19) which produces an output when conductive. a second output terminal;
(22) is an alarm device such as a lamp or a buzzer that is energized by the output of the first output terminal (20) and generates an alarm;
3) is a relay coil energized by the output of the second output terminal (21) and disconnected from the upper circuit of the electrical system of the switchgear (9); (24) is a load connected to the switchgear (9);
(25) is the switchgear for load (24)! This is the cable connected to (9).
次に動作について説明する。入力端子（１２）に商用電
源を接続して入力制御回路（１３）で例えば入力端子（
１２）から印加される商用電源電圧を基準電圧に変換し
、かつ光信号制御回路（１４）を付勢して第１の光ファ
イバー（１５ａ）を介Ｌ７て真空度感応素子（１６）に
照射する。Next, the operation will be explained. Connect a commercial power supply to the input terminal (12) and use the input control circuit (13) to control the input terminal (
Convert the commercial power supply voltage applied from 12) into a reference voltage, and energize the optical signal control circuit (14) to irradiate the vacuum sensing element (16) via the first optical fiber (15a) L7. .
真空度感応素子（１６）は真空スイッチ管（１０）の真
空度に応じて歪みその反射状態が変化し、光信号制御回
路（１４）は第２の光ファイバー（１５ｂ）を介して真
空スイッチ管（１０）の真空度に応じた反射光を受光す
る。検出回路（１７）では入力制御回路（１３）からの
基準電圧と、真空スイッチ管（］０）の真空度に応じた
反射光に対応する光信号制御回路（１４）からの電圧と
を比較し、光信号制御回路（１４）からの電圧が入力制
御回路（１３）からの基準電圧より低くなると出力を生
じて第１．第２のトランジスタ（１８）、（１９）を導
通させる。The vacuum level sensitive element (16) is distorted and its reflection state changes depending on the vacuum level of the vacuum switch tube (10), and the optical signal control circuit (14) is connected to the vacuum switch tube (10) via the second optical fiber (15b). 10) Receive reflected light according to the degree of vacuum. The detection circuit (17) compares the reference voltage from the input control circuit (13) with the voltage from the optical signal control circuit (14) corresponding to the reflected light depending on the vacuum degree of the vacuum switch tube (]0). , when the voltage from the optical signal control circuit (14) becomes lower than the reference voltage from the input control circuit (13), an output is generated. The second transistors (18) and (19) are made conductive.
このため第１．第２の出力端子（２０）、（２１）に出
力を生じＰ４報装置（２２）を付勢して、真空スイッチ
管（１０）の真空度が低下したことを知らせると共に、
継電器コイル（２３）を付勢して開閉装置＋￥（９）を
電気系統の上位回路から切雅す。For this reason, the first. Generating an output at the second output terminals (20) and (21) and energizing the P4 reporting device (22) to notify that the degree of vacuum in the vacuum switch tube (10) has decreased;
The relay coil (23) is energized to disconnect the switchgear +¥ (9) from the upper circuit of the electrical system.
なお、上記実施例では開閉装置（９）の真空スイッチ９
（１０）の真空度を検出する場合について説明したが
、内部が真空になされる他の種々な真空装置、機器の真
空度を検出することができる。In addition, in the above embodiment, the vacuum switch 9 of the switchgear (9)
Although the case of detecting the degree of vacuum in (10) has been described, it is possible to detect the degree of vacuum of various other vacuum devices and devices whose interiors are evacuated.
以上のようにこの発明によれば、真空度を常時監視し、
その判定結果が出力されるため、保守点検が省力化され
、信頼度が向上し、かつ真空度の変化によって系統シス
テムの制御ができる等の緒効果を有する。As described above, according to the present invention, the degree of vacuum is constantly monitored,
Since the determination result is output, maintenance and inspection work is saved, reliability is improved, and the system can be controlled by changing the degree of vacuum.
第１図は従来の真空度検出装置を示す電気結線図、第２
図はこの発明に係る真空度検出装置ｉｔの一実施例を示
すブロック線図である。
図において、（９）は開閉装置、（１０）は真空スイッ
チ管、（１１）は真空度検出装置本体、（１２）は入力
端子、（１３）は入力制御回路、（１４）は光信号制御
回路、（１５）は光フアイバークー−プル、（１５ａ）
、（１５ｂ）は第１、第２の光ファイバー、（１６）は
真空度感応素子、（１７）は検出回路、（１８）・（１
９）は第１．第２のトランジスタ、（２０）、（２１）
は第１．第２の出力端子、（２２）は％報装置、（２３
）は継電器コイルである。なお各図中同一符号は同一部
分を示す。Figure 1 is an electrical wiring diagram showing a conventional vacuum level detection device, Figure 2
The figure is a block diagram showing one embodiment of the vacuum level detection device IT according to the present invention. In the figure, (9) is the switchgear, (10) is the vacuum switch tube, (11) is the vacuum level detection device body, (12) is the input terminal, (13) is the input control circuit, and (14) is the optical signal control. Circuit, (15) is optical fiber couple, (15a)
, (15b) are the first and second optical fibers, (16) is the vacuum sensing element, (17) is the detection circuit, (18) and (1
9) is the first. Second transistor, (20), (21)
is the first. The second output terminal (22) is a percentage reporting device, (23
) is the relay coil. Note that the same reference numerals in each figure indicate the same parts.
Claims (1)
置の真空度に応じて反射状態が変化する真空度検出素子
、および前記真空度検出素子に光を照射し前記真空度検
出素子からの反射光を受光する光信号制御回路を備え、
前記反射光によって前記真空装置の真空度を検出するよ
うにしたことを特徴とする真空度検出装置。 ２、光信号制御回路から真空度検出素子への光の照射並
びに前記真空度検出素子から前記光信号制御回路への反
射光の伝達は、それぞれ光ファイバーによって行われる
特許請求の範囲第１項記載の真空度検出装置。 ３、光信号制御回路が受光する真空度検出素子からの反
射光に対応する信号と、基準信号とは検出回路において
比較され、前記反射光に対応する信号が前記基準信号を
下まわると前記検出回路は出力を生じるように構成され
た特許請求の範囲第１項または９４２項記載の真空度検
出装置。 ４、検出回路の出力によりて付勢痺れる警報装置を備え
、前記警報装置の付勢により真空装置の真空度が低下し
たことを検出するようにした特許請求の範囲第３項記載
の真空度検出装置。 ５、検出回路の出力によって付勢される継電器コイルを
備え、前記継電器コイルの付勢により真空装置を電気回
路からしや断するようにした特許請求の範囲第３項また
は第４項記載の真空度検出装置。[Scope of Claims] 1. A vacuum level detection element that is provided in a vacuum device where the degree of vacuum is detected and whose reflection state changes depending on the vacuum level of the vacuum device, and a vacuum level detection element that irradiates light to the vacuum level detection element and Equipped with an optical signal control circuit that receives reflected light from the vacuum level detection element,
A degree of vacuum detection device, characterized in that the degree of vacuum of the vacuum device is detected by the reflected light. 2. The irradiation of light from the optical signal control circuit to the vacuum level detection element and the transmission of reflected light from the vacuum level detection element to the optical signal control circuit are performed by optical fibers, respectively. Vacuum level detection device. 3. The signal corresponding to the reflected light from the vacuum detection element received by the optical signal control circuit and the reference signal are compared in the detection circuit, and when the signal corresponding to the reflected light is lower than the reference signal, the detection is performed. 943. A vacuum level detection device according to claim 1 or 942, wherein the circuit is configured to produce an output. 4. The degree of vacuum detection according to claim 3, further comprising an alarm device that is energized by the output of the detection circuit, and detects that the degree of vacuum of the vacuum device has decreased by energizing the alarm device. Device. 5. The vacuum according to claim 3 or 4, comprising a relay coil energized by the output of the detection circuit, and the vacuum device is disconnected from the electric circuit by the energization of the relay coil. degree detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6183883A JPS59187236A (en) | 1983-04-06 | 1983-04-06 | Apparatus for detecting vacuum degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6183883A JPS59187236A (en) | 1983-04-06 | 1983-04-06 | Apparatus for detecting vacuum degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59187236A true JPS59187236A (en) | 1984-10-24 |
Family
ID=13182630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6183883A Pending JPS59187236A (en) | 1983-04-06 | 1983-04-06 | Apparatus for detecting vacuum degree |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59187236A (en) |
-
1983
- 1983-04-06 JP JP6183883A patent/JPS59187236A/en active Pending
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