JPS6194517A - Open-phase detector - Google Patents
Open-phase detectorInfo
- Publication number
- JPS6194517A JPS6194517A JP21412884A JP21412884A JPS6194517A JP S6194517 A JPS6194517 A JP S6194517A JP 21412884 A JP21412884 A JP 21412884A JP 21412884 A JP21412884 A JP 21412884A JP S6194517 A JPS6194517 A JP S6194517A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- open
- line
- phase detector
- phase
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、線路に設置された酸化亜鉛避雷器（以下ＺＬ
Ａ）より取出した電圧を検圧してしゃ断器の入相を検出
する装置に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a zinc oxide lightning arrester (hereinafter referred to as ZL) installed on a railway line.
A) It relates to a device that detects the phase input of a breaker by detecting the voltage extracted from the above.
従来、線路電圧を導入する方法としては第３図に示すよ
うに、線路電圧変成器Ｅ（以下線路ＰＴ）を使っていた
。Conventionally, as a method of introducing line voltage, a line voltage transformer E (hereinafter referred to as line PT) has been used, as shown in FIG.
ところで、最近、電気所機器を雷サージより防護°する
ため線路に非直線性の特性をもつ酸化亜鉛素子を使用し
た避雷器りが設置されることが多くなっている。Incidentally, recently, in order to protect electrical station equipment from lightning surges, lightning arresters using zinc oxide elements having non-linear characteristics are often installed on railway lines.
この酸化亜鉛ａＭ器（ＺＬＡ）Ｄはその構造が単にＺＬ
Ａ素子を直列に接続したものであシ、従来の避雷器のよ
うに直列ギャップがないため常時ＺＬＡＤには電圧が印
加された使い方となっている。The structure of this zinc oxide aM device (ZLA)D is simply ZL.
It is a device in which A elements are connected in series, and unlike conventional lightning arresters there is no series gap, so a voltage is always applied to the ZLAD.
本発明の目的は、線路ＺＬＡを使用して電圧を検圧して
一相あるいは二相のみ無電圧となったことで欠相を検出
し、従来、しゃ断器内蔵、あるいは、保護リレー盤に実
装していた欠相検出回路を省略し、コストメリットを出
すことができる欠相検出装置を提供することにある。The purpose of the present invention is to detect a phase failure when only one or two phases become non-voltage by detecting the voltage using the line ZLA. It is an object of the present invention to provide an open phase detecting device which can omit a conventional open phase detecting circuit and provide a cost advantage.
本発明は第２図に示すように、線路ＺＬＡの等価回路で
、等価抵抗几３の両端電圧を取出してこれを検出する検
圧回路を具備させ、この検圧回路の出力が線路ＺＬＡの
三相中−相めるいは二相のみ無電圧を確認して欠相を検
出することにある。As shown in FIG. 2, the present invention is an equivalent circuit of the line ZLA, and is equipped with a voltage detection circuit that extracts and detects the voltage across the equivalent resistor 3, and the output of this voltage detection circuit is applied to the three terminals of the line ZLA. The purpose of this method is to detect phase loss by confirming that there is no voltage between phases or only two phases.
第１図に本発明の実施Ｉ＋１１を示す。 FIG. 1 shows an implementation I+11 of the invention.
線路Ｃ，，Ｃｂ 、Ｃ−に設置されたＺＬＡＤ、。ZLAD installed on line C,, Cb, C-.
Ｄｂ、Ｄ−の中間電位をＬ Ｄ ＋〜ＬＤ４ として、
取出して本装置に導入する。この中間電位ＬＤ。Assuming that the intermediate potential between Db and D- is L D + ~LD4,
Take it out and introduce it into this device. This intermediate potential LD.
〜ＬＤ３の電位が無くなったことで復帰する電圧検出リ
レー１，２．３を実装する。~Mount voltage detection relays 1, 2.3 that return when the potential of LD3 disappears.
今、しゃ断器Ｂ、が一相のみ欠相した場合を例によって
本装置の応動を説明する。以下の通シである。Ｂ、が欠
相するとＺＬＡＤ、の電圧がなくなるため中間電位とし
て引込んだＬＤＩの電位がなくなって電圧検出リレーｌ
は復帰してこのリレーの常開接点１ｂが閉じ、他の電圧
検出リレー２゜３の常閉接点２ａ、３ａとで条件が成立
して確認タイムリレー４Ｔが動作してこの常開接点４Ｔ
。Now, the response of this device will be explained using an example where only one phase of the circuit breaker B is open. The following is the general policy. When B, has an open phase, the voltage of ZLAD disappears, so the potential of LDI, which is drawn in as an intermediate potential, disappears, and the voltage detection relay l
returns and the normally open contact 1b of this relay closes, and the condition is established with the normally closed contacts 2a and 3a of the other voltage detection relay 2゜3, the confirmation time relay 4T operates, and this normally open contact 4T
.
が閉じて欠相検出出力５を導出する。is closed and an open phase detection output 5 is derived.
本発明によれば線路ＰＴを使用せず簡単に線路電圧をチ
ェックでき、かつ、従来の欠相検出回路を省略すること
が出来るためコスト低減をはかることが出来る。 。According to the present invention, the line voltage can be easily checked without using the line PT, and the conventional open phase detection circuit can be omitted, so that costs can be reduced. .
第１図は本発明の詳細な説明する図面、第２図は本発明
の概要を簡単に説明する図、第３図は従来の線路電圧導
入方法を示す図。FIG. 1 is a diagram explaining the present invention in detail, FIG. 2 is a diagram briefly explaining the outline of the present invention, and FIG. 3 is a diagram showing a conventional line voltage introduction method.
Claims (1)
して、この電圧を常時監視する手段を設けたことを特徴
とする欠相検出装置。1. An open phase detection device characterized by providing means for extracting the intermediate potential of a zinc oxide lightning arrester installed on a railway line and constantly monitoring this voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21412884A JPS6194517A (en) | 1984-10-15 | 1984-10-15 | Open-phase detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21412884A JPS6194517A (en) | 1984-10-15 | 1984-10-15 | Open-phase detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194517A true JPS6194517A (en) | 1986-05-13 |
Family
ID=16650683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21412884A Pending JPS6194517A (en) | 1984-10-15 | 1984-10-15 | Open-phase detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194517A (en) |
-
1984
- 1984-10-15 JP JP21412884A patent/JPS6194517A/en active Pending
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