JPS60174955A - Capacitance division type detector - Google Patents
Capacitance division type detectorInfo
- Publication number
- JPS60174955A JPS60174955A JP59031184A JP3118484A JPS60174955A JP S60174955 A JPS60174955 A JP S60174955A JP 59031184 A JP59031184 A JP 59031184A JP 3118484 A JP3118484 A JP 3118484A JP S60174955 A JPS60174955 A JP S60174955A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- voltage
- insulator
- voltage detection
- type detector
- 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.)
- Granted
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は変電所等において高圧線路の検電に使用される
容量分正形検電装置に関するものである（従来技術）
変電所等の高圧線路の検電には、主コンデンサと分圧コ
ンデンサと分圧コンデンサにより取出された分圧電圧を
更に低圧化させる変圧器とから成る容量形計器用変圧器
を高圧線路に接続したうえその２次端子にアナログ式の
検電計器を接続した検電装置が用いられているが、この
装置は極めて高価であるうえ高電圧用のものは装置が大
型化して設置スペースの確保が容易でない等の問題があ
った。[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a capacitance positive voltage detection device used for voltage detection on high-voltage lines in substations, etc. (Prior art) High voltage in substations, etc. For line voltage detection, a capacitive voltage transformer consisting of a main capacitor, a voltage dividing capacitor, and a transformer that lowers the divided voltage extracted by the voltage dividing capacitor is connected to the high voltage line, and its secondary voltage is connected to the high voltage line. A voltage detection device with an analog voltage detection meter connected to the terminal is used, but this device is extremely expensive, and high-voltage devices have problems such as the large size of the device and the difficulty in securing installation space. was there.
（発明の目的）
本発明はこのような従来の問題点を解消し、安価に製作
することができるうえに大きい設置スペースを必要とし
ない容量分正形検電装置を目的として完成されたもので
ある。(Purpose of the Invention) The present invention has been completed with the aim of solving these conventional problems and providing a capacitance positive voltage detection device that can be manufactured at low cost and does not require a large installation space. be.
（発明の構成）
本発明は電力機器用碍子に内蔵されたコンデンサの低圧
端子に接続してｌＯ〜１００ＯＶの電圧を分坦する分圧
コンデンサと、該分圧コンデンサに遮蔽ケーブルを介し
て接続されたサージ抑制回路及び高入力インピーダンス
の電圧検出部とから成ることを特徴とするものであり、
従来の検電装置が高電圧を分圧するための主コンデンサ
と分圧コンデンサと変圧器とを備えていたのに対し、電
力機器用碍子に内蔵されている電界制御用のコンデンサ
を主コンデンサとして利用することにより装置の小型化
と製作費の引下げに成功したものである。以下、本発明
を断路器に接続した図示の実施例により詳細に説明する
。(Structure of the Invention) The present invention includes a voltage dividing capacitor that is connected to a low voltage terminal of a capacitor built in an insulator for power equipment to divide a voltage of 10 to 100 OV, and a voltage dividing capacitor that is connected to the voltage dividing capacitor via a shielded cable. It is characterized by comprising a surge suppression circuit and a high input impedance voltage detection section,
While conventional voltage detection devices were equipped with a main capacitor, a voltage dividing capacitor, and a transformer to divide high voltage, the main capacitor is a capacitor for electric field control built into an insulator for power equipment. By doing so, we succeeded in downsizing the device and lowering manufacturing costs. Hereinafter, the present invention will be explained in detail with reference to an illustrated embodiment connected to a disconnector.
図中（１）は３６ＫＶ〜３００ＫＶの高圧線路用の蔵さ
せたものである。本発明の容量分正形検電装置はコンデ
ンサ（３）の低圧端子（４）に接続して用いられるもの
であり、該低圧端子（４）に接続されて１０〜１００Ｏ
Ｖ程度の電圧を分担するための分圧コンデンサ（５）と
、該分圧コンデンサ（５）に遮蔽ケーブル（６）を介し
て接続されたサージ抑制回路（７）と、その出力側に接
続されたディジタル電圧計のような高入力インピーダン
スの電圧検出部（８）及びリレー接点メイク用の差動増
幅回路のような高入力インピーダンスの電圧検出部（１
２）とから成るものである。遮蔽ケーブル（６）は外部
からのノイズの影響を防止し電圧検出部（８）、（１２
）の誤動作を防止するためのものである。サージ抑制回
路（７）は波頭緩和用コンデンサ（９）と雷インパルス
電圧抑制用双方向ツェナーダイオードαＯ）と開閉イン
パルス抑制用サージアレスタ（１１）とを並列接続した
ものであり、雷インパルス等により異常電圧が電圧検出
部（８）、（１２）に作用することを防止するものであ
る。電圧検出部（８）、（１２）は従来のアナログ式の
検電計器に比較して極めてわずかな電力により作動する
ディジタル式電圧計、ディジタル式電流計、ＩＣ組込増
幅器等の高入力インピーダンスの電圧検出部を用いるも
のとし、このため従来の容量計器用変圧器に用いられて
いた変圧器を省略することができる。なお、（１２）の
リレー接点メイク用の差動増幅回路のような電圧検出部
は断路器（１）の自動制御化、遠隔操作化の便を図るも
のである。In the figure, (1) is for a high voltage line of 36KV to 300KV. The capacitance positive voltage detection device of the present invention is used by being connected to the low voltage terminal (4) of the capacitor (3).
A voltage dividing capacitor (5) for sharing a voltage of approximately V, a surge suppression circuit (7) connected to the voltage dividing capacitor (5) via a shielded cable (6), and a surge suppression circuit (7) connected to the output side of the voltage dividing capacitor (5). A high input impedance voltage detection section (8) such as a digital voltmeter and a high input impedance voltage detection section (1) such as a differential amplifier circuit for making relay contacts.
2). The shielded cable (6) prevents the influence of external noise and connects the voltage detection sections (8) and (12).
) to prevent malfunction. The surge suppression circuit (7) is a wavefront mitigation capacitor (9), a bidirectional Zener diode αO for lightning impulse voltage suppression, and a surge arrester for switching impulse suppression (11) connected in parallel. This prevents voltage from acting on the voltage detection sections (8) and (12). The voltage detection units (8) and (12) are used for high input impedance devices such as digital voltmeters, digital ammeters, and IC built-in amplifiers that operate with extremely small amounts of power compared to conventional analog voltage detection meters. A voltage detection section is used, and therefore the transformer used in the conventional capacity voltage transformer can be omitted. Note that the voltage detection section (12) such as a differential amplifier circuit for making relay contacts facilitates automatic control and remote operation of the disconnector (1).
このように構成されたものは、電力機器用碍子（２）に
内蔵されたコンデンサ（３）の低圧端子（４）に接続し
て使用すれば、該コンデンサ（３）を主コンデンサとし
て分圧用コンデンサ（５）が１００ＫＶ〜３００ＫＶの
高圧から１０〜１ｏｏｏｖ、好ましくは５０〜６００Ｖ
の電圧を分圧し、この電圧は分圧コンデンサ（５）に遮
蔽ケーブル（６）を介して接続されたサージ抑制回路（
７）を経て高入力インピーダンスの電圧検出部（８）、
（１２）により精度良く検出されるものである。なお、
分圧用コンデンサ（５）により分圧される電圧は前述の
とおり１０〜１００ＯＶ、好ましくは５０〜６００Ｖの
範囲であり、１０Ｖ以下では電圧検出部（８）、（１２
）を精度良く作動させるに不十分であり、逆に１００Ｏ
Ｖを越えると電圧検出部（８）、（１２）を直接接続す
ることができないばかりか常時印加される電圧の他に侵
入する雷サージ、開閉サージにより接続機器類が絶縁破
壊される虞れがある。このように本発明の容量分正形検
電装置は電力機器用碍子（２）に内蔵された電界制御用
のコンデンサ（３）を主コンデンサとして用いるもので
あるから、高電圧を分担するため大型化させる必要のあ
った主コンデンサを省略することができ、装置を著しく
小型化することができるとともに製作費の大幅な引下げ
に成功したものである。If the device configured in this way is connected to the low voltage terminal (4) of the capacitor (3) built into the insulator (2) for power equipment, the capacitor (3) can be used as the main capacitor and can be used as a voltage dividing capacitor. (5) from high voltage of 100KV to 300KV to 10 to 1ooov, preferably 50 to 600V
This voltage is applied to the surge suppression circuit (
7) to a high input impedance voltage detection section (8),
(12), it is detected with high accuracy. In addition,
As mentioned above, the voltage divided by the voltage dividing capacitor (5) is in the range of 10 to 100 OV, preferably 50 to 600 V.
) is insufficient to operate accurately; on the other hand, 100O
If the voltage exceeds V, not only will it not be possible to directly connect the voltage detection parts (8) and (12), but there is a risk of dielectric breakdown of the connected equipment due to intruding lightning surges and switching surges in addition to the constantly applied voltage. be. As described above, since the capacitance positive voltage detection device of the present invention uses the electric field control capacitor (3) built into the insulator (2) for power equipment as the main capacitor, it is large-sized to share the high voltage. The main capacitor that had previously been required to be made smaller can be omitted, making it possible to significantly reduce the size of the device and also successfully reducing production costs.
なお、以上の実施例では電界制御用のコンデンサ（３）
を既設の断路器のＳＰ形の電力機器用碍子（２）に内蔵
させたものであるか、変圧器用ブッシングのように既に
コンデンサを内蔵しているものについては、そのまま本
発明に使用することができる。In addition, in the above embodiment, the electric field control capacitor (3)
If it is built into the SP type power equipment insulator (2) of an existing disconnector, or if it already has a built-in capacitor, such as a bushing for a transformer, it can be used as is in the present invention. can.
（発明の効果）
本発明は以上の説明からも明らかなように、装置の小型
化と製作費の大幅な引下げに成功したものであり、しか
も、精度の良い検電が可能なものであるから、従来の高
圧線路用検電装置の問題点を解消したものとして産業の
発展に寄与するところは極めて大である。(Effects of the Invention) As is clear from the above explanation, the present invention has succeeded in reducing the size of the device and significantly reducing the manufacturing cost, and moreover, it is capable of highly accurate voltage detection. , it will greatly contribute to the development of industry as it solves the problems of conventional voltage detection devices for high-voltage lines.
図面は本発明の実施例の装置の使用状態を示す説明図で
ある。
ｉ２）’ ：電力機器用碍子、（３）：コンデ′ンサ、
（４）；低圧端子、（５）：分圧コンデンサ、（６１：
ｉ蔽ケーブル、（７）：サージ抑制回路、（８）：電
圧検出部、（９）：波頭緩和用コンデンサ、α０）：雷
インパルス電圧抑制用双方向ツェナーダイオード、（１
１） ：開閉インパルス抑制用サージアレスタ、（１２
） ： 電圧検出部。The drawings are explanatory diagrams showing how the apparatus according to the embodiment of the present invention is used. i2)': Insulator for power equipment, (3): Capacitor,
(4); Low voltage terminal, (5): Voltage dividing capacitor, (61:
i-shielded cable, (7): surge suppression circuit, (8): voltage detection section, (9): wavefront mitigation capacitor, α0): bidirectional Zener diode for lightning impulse voltage suppression, (1
1): Surge arrester for suppressing opening/closing impulses, (12
): Voltage detection section.
Claims (1)
）の低圧端子（４）に接続して１０〜１００ＯＶの電圧
を分坦する分圧コンデンサ（５）と、該分圧コンデンサ
（５）に遮蔽ケーブル（６）を介して接続されたサージ
抑制回路（７）及び高入力インピーダンスの電圧検出部
（８）、（１２）とから成ることを特徴とする容量分正
形検電装置。 ２、サージ抑制回路（７）が波頭緩和用コンデンサ（９
）と雷インパルス電圧抑制用双方向ツェナーダイオード
ａωと開閉インパルス抑制用サージアレスタ（１１）と
を並列接続したものである特許請求の範囲第１項記載の
容量分正形検電装置。[Claims] 1. A capacitor (3) built into an insulator (2) for power equipment
) A voltage dividing capacitor (5) that divides the voltage of 10 to 100 OV by connecting to the low voltage terminal (4) of the voltage dividing capacitor (5), and a surge suppression circuit connected to the voltage dividing capacitor (5) via a shielded cable (6). (7) and a high input impedance voltage detection section (8), (12). 2. The surge suppression circuit (7) is connected to the wavefront mitigation capacitor (9).
), a bidirectional Zener diode aω for suppressing lightning impulse voltage, and a surge arrester (11) for suppressing switching impulse voltage are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59031184A JPH063462B2 (en) | 1984-02-21 | 1984-02-21 | Capacitive voltage divider type voltage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59031184A JPH063462B2 (en) | 1984-02-21 | 1984-02-21 | Capacitive voltage divider type voltage detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60174955A true JPS60174955A (en) | 1985-09-09 |
| JPH063462B2 JPH063462B2 (en) | 1994-01-12 |
Family
ID=12324353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59031184A Expired - Lifetime JPH063462B2 (en) | 1984-02-21 | 1984-02-21 | Capacitive voltage divider type voltage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063462B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510982A (en) * | 1991-06-28 | 1993-01-19 | Kubota Corp | Engine-driven welder |
| CN106338636A (en) * | 2016-06-08 | 2017-01-18 | 浙江新能量科技股份有限公司 | Voltage sampling method using magnet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210232A (en) * | 1993-01-19 | 1994-08-02 | Nippon Steel Corp | Coating material supply device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143395U (en) * | 1974-09-27 | 1976-03-31 | ||
| JPS56153866U (en) * | 1980-04-17 | 1981-11-17 | ||
| JPS57130915U (en) * | 1981-02-09 | 1982-08-14 | ||
| JPS596779U (en) * | 1982-07-05 | 1984-01-17 | 株式会社明電舎 | Electrical insulator |
-
1984
- 1984-02-21 JP JP59031184A patent/JPH063462B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143395U (en) * | 1974-09-27 | 1976-03-31 | ||
| JPS56153866U (en) * | 1980-04-17 | 1981-11-17 | ||
| JPS57130915U (en) * | 1981-02-09 | 1982-08-14 | ||
| JPS596779U (en) * | 1982-07-05 | 1984-01-17 | 株式会社明電舎 | Electrical insulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510982A (en) * | 1991-06-28 | 1993-01-19 | Kubota Corp | Engine-driven welder |
| CN106338636A (en) * | 2016-06-08 | 2017-01-18 | 浙江新能量科技股份有限公司 | Voltage sampling method using magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH063462B2 (en) | 1994-01-12 |
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