JPH0515055A - Current limiter - Google Patents
Current limiterInfo
- Publication number
- JPH0515055A JPH0515055A JP3164256A JP16425691A JPH0515055A JP H0515055 A JPH0515055 A JP H0515055A JP 3164256 A JP3164256 A JP 3164256A JP 16425691 A JP16425691 A JP 16425691A JP H0515055 A JPH0515055 A JP H0515055A
- Authority
- JP
- Japan
- Prior art keywords
- current
- superconducting
- films
- superconducting films
- superconductors
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、短絡電流などの過大
電流を限流する限流器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current limiter for limiting an excessive current such as a short circuit current.
【０００２】[0002]
【従来の技術】図４は例えば平成３年春期第３８回応用
物理学関連連合講演会の講演予稿集Ｎｏ．１の３０ｐ−
ＺＱ−７に示された従来の渦巻状に配置された超電導体
を有する限流器の構成を示す図である。図において、１
は渦巻状に配置された超電導膜、２は渦巻状に配置され
た超電導膜１の一端に設けた電流導入端子、３は渦巻状
に配置された超電導膜１の他端に設けた電流導入端子、
４は渦巻状に配置された超電導膜１を密着した基板であ
る。2. Description of the Related Art FIG. 4 shows, for example, Proceedings No. No. 38 of the 38th Joint Lecture Meeting on Applied Physics in the spring of 1991. 30p- of 1
It is a figure which shows the structure of the conventional fault current limiter which has the superconductor arrange | positioned in the conventional spiral form shown by ZQ-7. In the figure, 1
Is a spirally arranged superconducting film, 2 is a current introducing terminal provided at one end of the spirally arranged superconducting film 1, and 3 is a current introducing terminal provided at the other end of the spirally arranged superconducting film 1. ,
Reference numeral 4 is a substrate on which the superconducting film 1 arranged in a spiral shape is adhered.
【０００３】次に動作について説明する。渦巻状に配置
された超電導膜１が回路に電流導入端子２、３を介して
シリアルに接続されているときを考える。回路の定格電
流値以内では、渦巻状に配置された超電導膜１は超電導
状態である。この回路において短絡などの事故が起こ
り、渦巻状に配置された超電導膜１の臨界電流を越える
過電流が流れた場合、渦巻状に配置された超電導膜１は
クエンチして常電導体となり抵抗を有する。このとき発
生した抵抗によって過電流が抑えられ限流される。Next, the operation will be described. Consider the case where the spirally arranged superconducting film 1 is serially connected to the circuit via the current introducing terminals 2 and 3. Within the rated current value of the circuit, the spirally arranged superconducting film 1 is in a superconducting state. When an accident such as a short circuit occurs in this circuit and an overcurrent exceeding the critical current of the spirally arranged superconducting film 1 flows, the spirally arranged superconducting film 1 is quenched and becomes a normal conductor, and resistance is increased. Have. The resistance generated at this time suppresses the overcurrent and limits the current.
【０００４】[0004]
【発明が解決しようとする課題】従来の限流器は以上の
ように構成されているので、渦巻状に配置された超電導
膜１は定格電流以内の通電電流でリアクタンス分が発生
するため電力を損失するという問題点があった。Since the conventional fault current limiter is configured as described above, the superconducting film 1 arranged in a spiral shape generates a reactance component at an energizing current within the rated current, so that power is generated. There was a problem of loss.
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、通電時のリアクタンス分を軽減
し、電力の損失を最小限に抑える限流器を得ることを目
的とする。The present invention has been made in order to solve the above problems, and an object thereof is to obtain a current limiting device which reduces the reactance during energization and minimizes power loss.
【０００６】[0006]
【課題を解決するための手段】この発明に係わる限流器
は、渦巻状に形成され限流作用をする第１、第２の超電
導体を対向して対をなすように配置すると共に上記両超
電導体に流れる電流の方向が互いに逆になるように構成
したものである。In a current limiter according to the present invention, first and second superconductors, which are spirally formed and have a current limiting action, are arranged so as to face each other and form a pair. The structure is such that the directions of the currents flowing in the superconductors are opposite to each other.
【０００７】[0007]
【作用】この発明における限流器は、対をなして渦巻状
に配置された超電導体の双方に流れる電流の方向が互い
に逆になるように構成したのでリアクタンス分の発生を
打ち消す効果があり無誘導にでき、電力の損失を無くす
ことができる。The current limiter according to the present invention has a structure in which the directions of the currents flowing in both of the spirally arranged superconductors are opposite to each other. It can be used as an induction, and the power loss can be eliminated.
【０００８】[0008]
【実施例】実施例１．以下、この発明の一実施例を図に
ついて説明する。図１において、１１、１２は渦巻状に
形成された第１、第２の超電導膜であり、対向して対を
なすように配置されている。２は第１の超電導膜１１の
片端に取り付けた電流導入端子、３は第２の超電導膜１
２の片端に取り付けた電流導入端子、４は第１、第２の
超電導膜１１、１２を密着した基板、５は第１、第２の
超電導膜１１、１２の他端を接続した接続部である。EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numerals 11 and 12 denote spirally formed first and second superconducting films, which are arranged to face each other and form a pair. Reference numeral 2 is a current introducing terminal attached to one end of the first superconducting film 11, and 3 is the second superconducting film 1.
2 is a current introducing terminal attached to one end of the substrate, 4 is a substrate on which the first and second superconducting films 11 and 12 are adhered, and 5 is a connecting portion which connects the other ends of the first and second superconducting films 11 and 12. is there.
【０００９】次に動作について説明する。対をなして渦
巻状に配置された第１、第２の超電導膜１１、１２が電
流導入端子２、３を介して回路にシリアルに接続されて
いるとき、定格電流以内では第１、第２の超電導膜１
１、１２は超電導状態にある。この回路において短絡な
どの事故が起こり、第１、第２の超電導膜１１、１２の
臨界電流を越える過電流が流れた場合、第１、第２の超
電導膜１１、１２はクエンチして常電導体となり抵抗を
有する。このとき発生した抵抗によって過電流が抑えら
れ限流される。また定格電流以内で通常の通電を行って
いる場合、第１、第２の超電導膜１１と１２に流れる電
流の方向は、互いに逆方向となり、リアクタンス分を相
方で打ち消す。したがって、リアクタンス分の発生が抑
えられる。なお、電流導入端子２、３と接続部５は内外
の取り付けが逆でもよい。Next, the operation will be described. When the pair of spirally arranged first and second superconducting films 11 and 12 are serially connected to the circuit via the current introducing terminals 2 and 3, the first and second superconducting films are within the rated current. Superconducting film 1
1 and 12 are in a superconducting state. When an accident such as a short circuit occurs in this circuit and an overcurrent exceeding the critical current of the first and second superconducting films 11 and 12 flows, the first and second superconducting films 11 and 12 are quenched and the normal current is exceeded. It becomes a conductor and has resistance. The resistance generated at this time suppresses the overcurrent and limits the current. Further, when normal energization is performed within the rated current, the directions of the currents flowing through the first and second superconducting films 11 and 12 are opposite to each other, and the reactance components cancel each other out. Therefore, the generation of reactance can be suppressed. In addition, the current introduction terminals 2 and 3 and the connection portion 5 may be attached to each other in the inside and outside.
【００１０】実施例２．次に、この発明の他の実施例に
ついて説明する。図２において、１１、１２は図１の場
合と同様に、渦巻状に形成され対向して対をなすように
配置された第１、第２の超電導膜、２は第１の超電導膜
１１の中間に取り付けた電流導入端子、３は第２の超電
導膜１２の中間に取り付けた電流導入端子、４は第１、
第２の超電導膜１１、１２を密着した基板、５は第１、
第２の超電導膜１１、１２の片端を接続した接続部、６
は第１、第２の超電導膜１１、１２の他端を接続した接
続部である。Embodiment 2. Next, another embodiment of the present invention will be described. In FIG. 2, as in the case of FIG. 1, reference numerals 11 and 12 denote first and second superconducting films, which are spirally formed and arranged to face each other and form a pair. The current introducing terminal attached in the middle, 3 is the current introducing terminal attached in the middle of the second superconducting film 12, 4 is the first,
The substrate 5 on which the second superconducting films 11 and 12 are closely attached is the first,
A connecting portion in which one ends of the second superconducting films 11 and 12 are connected, 6
Is a connecting portion connecting the other ends of the first and second superconducting films 11 and 12.
【００１１】次に動作について説明する。対をなして渦
巻状に配置された第１、第２の超電導膜１１、１２が電
流導入端子２、３を介して回路にシリアルに接続されて
いるとき、定格電流以内では第１、第２の超電導膜１
１、１２は超電導状態にある。この回路において短絡な
どの事故が起こり、第１、第２の超電導膜１１、１２の
臨界電流を越える過電流が流れた場合、第１、第２の超
電導膜１１、１２はクエンチして常電導体となり抵抗を
有する。このとき発生した抵抗によって過電流が抑えら
れ限流される。また定格電流以内で通常の通電を行って
いる場合、第１、第２の超電導膜１１と１２に流れる電
流の方向は、互いに逆方向となり、リアクタンス分を相
方で打ち消す。したがって、リアクタンス分の発生が抑
えられる。Next, the operation will be described. When the pair of spirally arranged first and second superconducting films 11 and 12 are serially connected to the circuit via the current introducing terminals 2 and 3, the first and second superconducting films are within the rated current. Superconducting film 1
1 and 12 are in a superconducting state. When an accident such as a short circuit occurs in this circuit and an overcurrent exceeding the critical current of the first and second superconducting films 11 and 12 flows, the first and second superconducting films 11 and 12 are quenched and the normal current is exceeded. It becomes a conductor and has resistance. The resistance generated at this time suppresses the overcurrent and limits the current. Further, when normal energization is performed within the rated current, the directions of the currents flowing through the first and second superconducting films 11 and 12 are opposite to each other, and the reactance components cancel each other out. Therefore, the generation of reactance can be suppressed.
【００１２】実施例３．図３はこの発明のさらに他の実
施例である。図において、１１、１２は図１の場合と同
様に、渦巻状に形成され対向して対をなすように配置さ
れた第１、第２の超電導膜、２は第１の超電導膜１１の
両端に取り付けた電流導入端子、３は第２の超電導膜１
２の両端に取り付けた電流導入端子、４は第１、第２の
超電導膜１１、１２を密着した基板である。Embodiment 3. FIG. 3 shows still another embodiment of the present invention. In the figure, as in the case of FIG. 1, reference numerals 11 and 12 denote first and second superconducting films, which are spirally formed and arranged to face each other, and 2 denotes both ends of the first superconducting film 11. The current introducing terminal attached to the 3 is the second superconducting film 1
Current introducing terminals 4 attached to both ends of 2 are substrates to which the first and second superconducting films 11 and 12 are adhered.
【００１３】次に動作について説明する。第１、第２の
超電導膜１１、１２の内側電流導入端子２と外側電流導
入端子３を結び内側電流導入端子３と外側電流導入端子
２を結び、回路にシリアルに接続されているとき、定格
電流以内では第１、第２の超電導膜１１、１２は超電導
状態にある。この回路において短絡などの事故が起こ
り、第１、第２の超電導膜１１、１２の臨界電流を越え
る過電流が流れた場合、第１、第２の超電導膜１１、１
２はクエンチして常電導体となり抵抗を有する。このと
き発生した抵抗によって過電流が抑えられ限流される。
また定格電流以内で通常の通電を行っている場合、第
１、第２の超電導膜１１と１２に流れる電流の方向は、
互いに逆方向となり、リアクタンス分を相方で打ち消
す。したがって、リアクタンス分の発生が抑えられる。Next, the operation will be described. When the inner current introducing terminal 2 and the outer current introducing terminal 3 of the first and second superconducting films 11 and 12 are connected and the inner current introducing terminal 3 and the outer current introducing terminal 2 are connected and serially connected to the circuit, the rating is obtained. Within the current, the first and second superconducting films 11 and 12 are in the superconducting state. When an accident such as a short circuit occurs in this circuit and an overcurrent exceeding the critical current of the first and second superconducting films 11 and 12 flows, the first and second superconducting films 11 and 1
2 is quenched to become a normal conductor and has resistance. The resistance generated at this time suppresses the overcurrent and limits the current.
Further, when the normal energization is performed within the rated current, the direction of the current flowing through the first and second superconducting films 11 and 12 is
The directions are opposite to each other and the reactance components cancel each other. Therefore, generation of reactance can be suppressed.
【００１４】なお、上記実施例では超電導膜を用いたも
のについて述べたが、超電導材であれば膜以外のもので
もよく、同様の効果がえられる。In the above embodiment, the superconducting film is used, but any material other than the film may be used as long as it is a superconducting material, and the same effect can be obtained.
【００１５】[0015]
【発明の効果】以上のように、この発明によれば、渦巻
状に形成され限流作用をする第１、第２の超電導体を対
向して対をなすように配置すると共に上記両超電導体に
流れる電流の方向が互いに逆になるように構成したの
で、通常の電流通電時に発生するリアクタンス分を打ち
消し電力損失を抑制することができる。As described above, according to the present invention, the first and second superconductors, which are formed in a spiral shape and have a current limiting action, are arranged so as to face each other and form a pair. Since the directions of the currents flowing through are opposite to each other, it is possible to cancel the reactance component that occurs when the current is normally applied and suppress the power loss.
【図１】この発明の一実施例による限流器の構成を示す
平面図である。FIG. 1 is a plan view showing a configuration of a current limiting device according to an embodiment of the present invention.
【図２】この発明の他の実施例による限流器の構成を示
す平面図である。FIG. 2 is a plan view showing the configuration of a current limiting device according to another embodiment of the present invention.
【図３】この発明のさらに他の実施例による限流器の構
成を示す平面図である。FIG. 3 is a plan view showing the configuration of a current limiting device according to still another embodiment of the present invention.
【図４】従来の限流器の構成を示す平面図である。FIG. 4 is a plan view showing a configuration of a conventional fault current limiter.
２ 電流導入端子 ３ 電流導入端子 ４ 基板 ５ 接続部 ６ 接続部 １１ 第１の超電導膜 １２ 第２の超電導膜 2 current introducing terminal 3 current introducing terminal 4 substrate 5 connecting portion 6 connecting portion 11 first superconducting film 12 second superconducting film
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松野 繁 尼崎市塚口本町８丁目１番１号 三菱電機 株式会社材料研究所内 (72)発明者 木ノ内 伸一 尼崎市塚口本町８丁目１番１号 三菱電機 株式会社材料研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shigeru Matsuno 8-1-1 Tsukaguchihonmachi, Amagasaki City Mitsubishi Electric Corporation Material Research Laboratory (72) Inventor Shinichi Kinouchi 8-1-1 Tsukaguchihonmachi, Amagasaki Mitsubishi Electric Materials Research Institute Co., Ltd.
Claims (1)
第２の超電導体を対向して対をなすように配置すると共
に上記両超電導体に流れる電流の方向が互いに逆になる
ように構成した限流器。Claim: What is claimed is: 1. A spirally formed first current-limiting device.
A current limiter in which the second superconductors are arranged so as to face each other and form a pair, and the directions of the currents flowing in the two superconductors are opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3164256A JPH0515055A (en) | 1991-07-04 | 1991-07-04 | Current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3164256A JPH0515055A (en) | 1991-07-04 | 1991-07-04 | Current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0515055A true JPH0515055A (en) | 1993-01-22 |
Family
ID=15789641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3164256A Pending JPH0515055A (en) | 1991-07-04 | 1991-07-04 | Current limiter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691583A1 (en) | 1994-06-03 | 1996-01-10 | Fujitsu Limited | Image formation |
| WO1999000897A1 (en) * | 1997-06-30 | 1999-01-07 | Superconductor Technologies, Inc. | High temperature superconducting structures and methods for high q, reduced intermodulation structures |
| JP2011525684A (en) * | 2008-06-23 | 2011-09-22 | シーメンス アクチエンゲゼルシヤフト | Conductor device for resistive switching element comprising at least two composite conductors made of superconducting conductors |
-
1991
- 1991-07-04 JP JP3164256A patent/JPH0515055A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6895262B2 (en) | 1993-05-28 | 2005-05-17 | Superconductor Technologies, Inc. | High temperature superconducting spiral snake structures and methods for high Q, reduced intermodulation structures |
| EP0691583A1 (en) | 1994-06-03 | 1996-01-10 | Fujitsu Limited | Image formation |
| US5635323A (en) * | 1994-06-03 | 1997-06-03 | Fujitsu Limited | Image forming method |
| WO1999000897A1 (en) * | 1997-06-30 | 1999-01-07 | Superconductor Technologies, Inc. | High temperature superconducting structures and methods for high q, reduced intermodulation structures |
| JP2011525684A (en) * | 2008-06-23 | 2011-09-22 | シーメンス アクチエンゲゼルシヤフト | Conductor device for resistive switching element comprising at least two composite conductors made of superconducting conductors |
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