JPH0122697B2 - - Google Patents
Info
- Publication number
- JPH0122697B2 JPH0122697B2 JP55068709A JP6870980A JPH0122697B2 JP H0122697 B2 JPH0122697 B2 JP H0122697B2 JP 55068709 A JP55068709 A JP 55068709A JP 6870980 A JP6870980 A JP 6870980A JP H0122697 B2 JPH0122697 B2 JP H0122697B2
- Authority
- JP
- Japan
- Prior art keywords
- contacts
- contact
- power transmission
- closing
- circuit
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 57
- 239000004020 conductor Substances 0.000 description 7
- 239000008186 active pharmaceutical agent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
３６を駆動する電磁弁を制御する投入コイル３７ を備える回路しや断器。Closing coil 37 that controls the solenoid valve that drives 36 A circuit breaker equipped with a
本発明は送電線間に用いられる回路しや断器の
新規な改良に関するものである。
The present invention relates to novel improvements in circuit breakers and disconnectors used between power transmission lines.
従来の回路しや断器を用いて送電線の地絡事故
に対処する場合の接続の一例を第１図に示す。本
図において三相交流の各母線Ａ，Ｂ，Ｃに回路し
や断器１，２，３が夫々接続される。回路しや断
器１，２，３の送電線路側には機器や送電線路の
点検時に用いられる断路器４，５，６を介して送
電線路７，８，９が接続される。断路器４，５，
６の送電線路側には送電線路７，８，９の点検時
に誘導電圧を大地に逃がすための接地用断路器１
０，１１，１２が接続される。送電線路７，８，
９の夫々の他端には上述の接続と対称的に接地用
断路器１３，１４，１５、断路器１６，１７，１
８及び回路しや断器１９，２０，２１が接続され
る。回路しや断器１９，２０，２１の母線側には
母線A′，B′，C′が夫々接続される。ここで送電
線路７，８，９は通常多数の送電鉄塔によつて空
中に保持されている。第２図はその一例を示すも
のであつて、がいし２２，２３，２４を介して送
電線路７，８，９が鉄塔２５に保持される。がい
し２２，２３，２４には並列してアーキングホー
ン２６，２７，２８が設けられる。尚、７′，
８′，９′は送電線路７，８，９に並行に設置され
る二号線の送電線路である。 FIG. 1 shows an example of a connection when dealing with a ground fault on a power transmission line using conventional circuits and disconnectors. In this figure, circuit breakers 1, 2, and 3 are connected to three-phase AC bus lines A, B, and C, respectively. Power transmission lines 7, 8, and 9 are connected to the power transmission line sides of the circuit breakers 1, 2, and 3 via disconnectors 4, 5, and 6, which are used when inspecting equipment and power transmission lines. Disconnector 4, 5,
A grounding disconnector 1 is installed on the power transmission line side of 6 to release induced voltage to the ground when inspecting the power transmission lines 7, 8, and 9.
0, 11, and 12 are connected. Power transmission lines 7, 8,
At the other end of each of the terminals 9, there are grounding disconnectors 13, 14, 15 and disconnectors 16, 17, 1 symmetrically with the above-mentioned connections.
8 and circuit breakers 19, 20, and 21 are connected. Busbars A', B', and C' are connected to the busbar sides of the circuit breakers 19, 20, and 21, respectively. Here, the power transmission lines 7, 8, and 9 are usually held in the air by a large number of power transmission towers. FIG. 2 shows an example of this, in which power transmission lines 7, 8, and 9 are held on a steel tower 25 via insulators 22, 23, and 24. Arcing horns 26, 27, and 28 are provided in parallel to the insulators 22, 23, and 24. Furthermore, 7′,
Reference numerals 8' and 9' indicate power transmission lines of the second line installed in parallel to the power transmission lines 7, 8, and 9.
ここでいずれかの送電線路、例えば送電線路９
に落雷があつた場合には保護継電器（図示せず）
が作動して回路しや断器３及び２１をしや断させ
る。しや断動作後も一定時間は送電線路９に残留
した電荷が他の送電線路７，８、又は第２図に示
す２号線の送電線路７′，８′，９′からの静電お
よび電磁誘導にもとずいてアーキングホーン２８
間にアーク放電を続けて絶縁が回復しない場合が
ある。この地絡アーク時間は送電線の電圧、送電
線路間の間隔等によつて異なるが、例えば
500KVで2/3〜１秒、275KVで1/2秒程度である。
地絡アークが消滅しない状態でしや断器を再閉路
すれば再び事故をくり返すことになるので、従来
の装置では少なくとも地絡アークが自然消滅する
までの時間を経過してからでないと再閉路するこ
とができなかつた。また1000KVの超高電圧送電
線においては、例えば並行する複数の送電線の１
本が開路されたとき他の送電線からの静電及び電
磁誘導により地絡アークが長時間断続して自然消
弧せず、従来の再閉路方式を用いることができな
い問題点があつた。 Here, any power transmission line, for example, power transmission line 9
Protective relay (not shown) in case of lightning strike
operates, causing the circuit breakers 3 and 21 to break. For a certain period of time even after the shrinking operation, the charge remaining on the power transmission line 9 will be absorbed by electrostatic and electromagnetic charges from the other power transmission lines 7, 8, or the line 2 transmission lines 7', 8', and 9' shown in Fig. 2. Arching horn 28 based on guidance
During this period, arc discharge may continue and the insulation may not recover. This ground fault arc time varies depending on the voltage of the power transmission line, the distance between the power transmission lines, etc., but for example,
At 500KV it takes 2/3 to 1 second, and at 275KV it takes about 1/2 second.
If the circuit breaker is reclosed before the ground fault arc is extinguished, the accident will repeat again, so with conventional equipment, at least the time required for the ground fault arc to naturally extinguish before it can be restarted. I couldn't close the circuit. In addition, in the case of 1000KV ultra-high voltage transmission lines, for example, one of the multiple parallel transmission lines
When the circuit is opened, the ground fault arc is intermittent for a long time due to static electricity and electromagnetic induction from other power transmission lines, and the arc does not naturally extinguish, making it impossible to use the conventional reclosing method.
本発明は、遮断動作直後に送電線を接地するこ
とにより上記の欠点を除去することのできる回路
しや断器を提供することを目的とするものであ
る。 SUMMARY OF THE INVENTION An object of the present invention is to provide a circuit breaker that can eliminate the above-mentioned drawbacks by grounding a power transmission line immediately after a disconnection operation.
以下本発明の構成を実施例につき図面を参照し
つつ説明する。第３図は本発明の一実施例を示す
ものである。本願の回路しや断器はしや断部CB
及び接地断路部DSより形成される。本図におい
て、送電線に接続されるべき端子T1は導体３１
を介してしや断部CBの固定接点３３ａ及び接地
断路部DSの固定接点４３ａに接続されている。
固定接点３３ａに対向して可動接点３３ｂが設け
られ、可動接点３３ｂは導体３２を介して母線に
接続されるべき端子T2に接続される。可動接点
３３ｂにはそれを駆動する操作ロツド３４が接続
されており、その先端にはピストン３５が設けら
れる。ピストン３５は空気室３６中を左右に移動
するよう保持されている。３７はしや断器の投入
コイル、３８は開放コイルであつてその付勢によ
り電磁弁３９を動かせ、圧縮空気を空気室３６の
右部分３６ａ及び左部分３６ｂに夫々送るもので
ある。開放コイル３８は保護継電器（図示せず）
の動作により閉成する接点４０及びパレツトスイ
ツチ４１の接点４１ａを通じて電圧が供給され
る。投入コイル３７にもパレツトスイツチ４１及
び４２の一回路を通じて電流が供給される。パレ
ツトスイツチ４１はピストン３５に接続され、そ
の左右の移動に応じて動作するものであつて、各
部に必要な電圧を与えるものである。パレツトス
イツチの他の接点４１ｂは一つの送電線路をはさ
んで対向する位置に設けられる他の回路しや断器
のしや断動作接点４１b′を動作させるためのもの
であり、一方の回路しや断器のしや断動作接点４
１b′の動作コイルが他方の回路しや断器の接点４
１ｂに電源を介して接続されており、同様にして
一方の回路しや断器の接点４１ｂは他方の回路し
や断器のしや断動作接点４１b′の動作コイルに電
源を介して接続されている。すなわち、接点４１
ｂは両回路しや断器間のインターロツクをとるた
めの接点であり、一方の回路しや断器の固定接点
３３ａと可動接点３３ｂが閉成されているとき
は、他方の回路しや断器の固定接点４３ａと可動
接点４３ｂは閉成されないようにするためのもの
である。又導体３１には接地断路部DSの固定接
点４３ａが設けられる。ピストン４４の先端には
接地線に接続された可動接点４３ｂが固定接点４
３ａに対応して設けられる。ピストン４４は空気
室５０中を上下に移動できるよう保持されてお
り、その下端はパレツトスイツチ４２のスライド
片を構成している。開放コイル４５及び投入コイ
ル４６は前述のものと同様のものであつて、開放
コイル４５は再閉路継電器（図示せず）の接点４
７及びパレツトスイツチ４２の接点４２ａ及び４
２ｄを通じて電流が供給される。又投入コイル４
６はパレツトスイツチ４１の接点４１ｃ、パレツ
トスイツチ４２の接点４２ｂ、導体３１の送電電
圧がない場合接点４８ａを閉成するポテンシヤル
デイテクター４８の接点４８ａ、及び送電線をは
さんで対向する他の回路しや断器のしや断動作接
点４２b′を通じて電流が供給される。開放コイル
４５及び投入コイル４６は夫々その付勢により電
磁弁４９を左右に動かせ空気室５０の上部５０
ａ、又は下部５０ｂに圧縮空気を送るものであ
る。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings. FIG. 3 shows an embodiment of the present invention. Circuit breakers and breakers of the present application CB
and a grounding/disconnecting section DS. In this diagram, the terminal T 1 to be connected to the power transmission line is the conductor 31
It is connected to the fixed contact 33a of the shingle section CB and the fixed contact 43a of the earthing/disconnecting section DS through.
A movable contact 33b is provided opposite to the fixed contact 33a, and the movable contact 33b is connected via a conductor 32 to a terminal T2 to be connected to the bus bar. An operating rod 34 for driving the movable contact 33b is connected, and a piston 35 is provided at the tip of the operating rod 34. The piston 35 is held so as to move left and right in the air chamber 36. 37 is a closing coil for the breaker and 38 is an open coil which, when energized, moves a solenoid valve 39 and sends compressed air to the right portion 36a and left portion 36b of the air chamber 36, respectively. Open coil 38 is a protective relay (not shown)
Voltage is supplied through the contact 40 and the contact 41a of the palette switch 41, which are closed by the operation. Current is also supplied to the closing coil 37 through one circuit of palette switches 41 and 42. The palette switch 41 is connected to the piston 35, operates in response to the left and right movement of the piston 35, and applies necessary voltages to each part. The other contact 41b of the pallet switch is for operating the other circuit or disconnection contact 41b' provided at the opposite position across one power transmission line; Disconnector and disconnection contact 4
The working coil of 1b' is connected to the other circuit and the contact point 4 of the disconnector.
1b via a power supply, and similarly, the contact 41b of one circuit/breaker is connected to the operating coil of the other circuit/breaker/breaker operating contact 41b' via a power supply. ing. That is, the contact 41
b is a contact for interlocking between both circuit breakers, and when the fixed contact 33a and movable contact 33b of one circuit breaker are closed, the other circuit break is closed. The fixed contacts 43a and movable contacts 43b of the device are to prevent them from being closed. Further, the conductor 31 is provided with a fixed contact 43a of a grounding/disconnecting section DS. A movable contact 43b connected to the ground wire is connected to the fixed contact 4 at the tip of the piston 44.
3a. The piston 44 is held so that it can move up and down in the air chamber 50, and its lower end constitutes a slide piece of the palette switch 42. The opening coil 45 and the closing coil 46 are similar to those described above, and the opening coil 45 is connected to the contact 4 of a reclosing relay (not shown).
7 and contacts 42a and 4 of palette switch 42
Current is supplied through 2d. Also, input coil 4
6 is a contact 41c of the palette switch 41, a contact 42b of the palette switch 42, a contact 48a of a potential detector 48 that closes the contact 48a when there is no transmission voltage of the conductor 31, and other circuits facing each other across the power transmission line. Current is supplied through the disconnector and the disconnection contact 42b'. The opening coil 45 and the closing coil 46 are energized to move the solenoid valve 49 to the left and right, and the upper part 50 of the air chamber 50
a, or sends compressed air to the lower part 50b.
以上に説明した回路しや断器は第４図に示すよ
うに第１図の従来の回路しや断器と同じく送電線
間に配置される。本図を参照しつつ回路しや断器
の動作について説明する。各送電線路７，８，９
を電流が流れている場合、回路しや断器５１〜５
６は第３図に示す状態を保つており、しや断部
CBの接点３３ａ，３３ｂは閉成し、接地断路部
DSの接点４３ａ，４３ｂは開放している。ここ
でいずれかの送電線路、例えば送電線路９に落雷
があつた場合、前述の場合と同じく送電線路９の
端部に設けられた保護継電器が作動し、その接点
４０が閉成する。従つて開放コイル３８が励磁さ
れ、電磁弁３９は右方向に移動し、圧縮空気が空
気室３６の右部分３６ａに送り込まれる。これに
よりピストンは左方向に移動し、パレツトスイツ
チ４１を切換えると共に操作ロツド３４を介して
接点３３ａ，３３ｂをしや断する。上記の動作は
送電線路９をはさんで設けられた両側の回路しや
断器５３及び５６で同時に進行し、一方の回路し
や断器のパレツトスイツチ４１の動作によつてそ
の接点４１ｂが閉成し、その結果他方の回路しや
断器のしや断動作接点４１b′が閉成し、同様に他
方の回路しや断器のパレツトスイツチ４１の動作
によつてその接点４１ｂが閉成し、一方の回路し
や断器のしや断動作接点４１b′が閉成する。本願
の回路しや断器では接地断路部によつて更に送電
線路側の導体を接地する動作が引き続いて行なわ
れる。第５図はしや断動作の後に断路動作が行わ
れた回路しや断器の状態を示すものである。即
ち、しや断動作の完了に従つて接点４１b′が閉成
するとともに、ポテンシヤルデイテクター４８の
検出電位が実質的に零になるので接点４８ａが閉
成し、また接点４１ｃはすでにパレツトスイツチ
４１の作動により閉成しているので投入コイル４
６が付勢される。そのため電磁弁４９が左方に移
動して圧縮空気が空気室５０の下部５０ｂに送ら
れる。従つてピストン４４が上つて接点４３ａ，
４３ｂが閉成し導体３１は接地され、回路しや断
器５３，５６は第５図の状態となる。このように
しや断された送電線路９はしや断後直ちに接点４
３ａ，４３ｂによつて接地されるので、送電線路
９の電荷は接点４３ａ及び４３ｂを経て接地へ放
電される。その結果送電鉄塔の送電線路９を保持
するがいし２４間のアーキングホーン２８にとぶ
アークを極めて短時間で消滅させることができ
る。 As shown in FIG. 4, the circuit breakers and disconnectors described above are arranged between power transmission lines in the same way as the conventional circuit breakers shown in FIG. 1. The operation of the circuit and disconnector will be explained with reference to this figure. Each power transmission line 7, 8, 9
If current is flowing through the circuit and disconnectors 51-5
6 maintains the state shown in Fig. 3, and the wrinkle section
Contacts 33a and 33b of the CB are closed and the earthing/disconnecting section
DS contacts 43a and 43b are open. If any of the power transmission lines, for example the power transmission line 9, is struck by lightning, the protective relay provided at the end of the power transmission line 9 is activated and its contacts 40 are closed, as in the case described above. Therefore, the open coil 38 is energized, the solenoid valve 39 moves to the right, and compressed air is sent into the right portion 36a of the air chamber 36. This causes the piston to move to the left, switching the palette switch 41 and cutting off the contacts 33a and 33b via the operating rod 34. The above operation proceeds simultaneously in the circuit breakers 53 and 56 provided on both sides of the power transmission line 9, and the contact 41b of one of the circuit breakers is closed by the operation of the pallet switch 41 of one of the circuit breakers. As a result, the breaker operation contact 41b' of the other circuit or breaker is closed, and similarly, the operation of the pallet switch 41 of the other circuit or breaker closes its contact 41b, and the other circuit or breaker is closed. The circuit break/breaker break operation contact 41b' is closed. In the circuit disconnector and disconnector of the present application, the grounding/disconnecting section further continues to ground the conductor on the power transmission line side. FIG. 5 shows the state of the circuit breaker in which the disconnection operation is performed after the breaker operation. That is, as the cutting operation is completed, the contact 41b' closes, and since the detection potential of the potential detector 48 becomes substantially zero, the contact 48a closes, and the contact 41c has already been connected to the pallet switch 41. Since it is closed due to operation, closing coil 4
6 is energized. Therefore, the solenoid valve 49 moves to the left and compressed air is sent to the lower part 50b of the air chamber 50. Therefore, the piston 44 moves up and contacts 43a,
43b is closed, the conductor 31 is grounded, and the circuit breakers 53 and 56 are in the state shown in FIG. The power transmission line 9 that has been cut off in this way is immediately connected to the contact point 4 after the breakage.
3a and 43b, the electric charge on the power transmission line 9 is discharged to the ground via the contacts 43a and 43b. As a result, the arc that jumps to the arcing horn 28 between the insulators 24 that hold the power transmission line 9 of the power transmission tower can be extinguished in an extremely short time.
次に所定時間が経過すると再閉路継電器が作動
するので、その接点４７が閉成する。接点４７及
びパレツトスイツチ４２の接点４２ａ及び４２ｄ
を通じ開放コイル４５が付勢され、電磁弁４９が
切換えられる。そのためピストン４４は押し下げ
られて断路器用の接点４３ａ，４３ｂは接続を開
放し、送電線路９は接地から切離される。この場
合しや断部CBのパレツトスイツチ４１は第５図、
接地断路部DSのパレツトスイツチ４２は第３図
の状態となつているので、接点４１ｄが閉成され
ている。この状態を第６図に示す。４１ａは右側
に接触している。従つて接地断路部DSの開放動
作はパレツトスイツチ４２の接点４２ｄ及び４２
ｅを通じてしや断部CBに伝えられ、しや断器の
投入コイル３７が付勢される。これにより電磁弁
３９から空気室３６の左部分３６ｂに圧縮空気が
送り込まれ、ピストン３５が右側に移動してパレ
ツトスイツチ４１の接続を切換え、接点３３ａ，
３３ｂを接続させる。以上の動作が完了すると回
路しや断器の接続は第３図の状態にもどる。 Next, when a predetermined period of time has elapsed, the recloser relay is activated, and its contacts 47 are closed. Contact 47 and contacts 42a and 42d of palette switch 42
The open coil 45 is energized through the solenoid valve 49, and the solenoid valve 49 is switched. Therefore, the piston 44 is pushed down, the disconnector contacts 43a and 43b are disconnected, and the power transmission line 9 is disconnected from the ground. In this case, the pallet switch 41 of the shield section CB is as shown in FIG.
Since the palette switch 42 of the earthing/disconnecting section DS is in the state shown in FIG. 3, the contact 41d is closed. This state is shown in FIG. 41a is in contact with the right side. Therefore, the opening operation of the earthing/disconnecting section DS is performed by the contacts 42d and 42 of the palette switch 42.
It is transmitted to the shingle breaker section CB through e, and the closing coil 37 of the shingle breaker is energized. As a result, compressed air is sent from the solenoid valve 39 to the left portion 36b of the air chamber 36, and the piston 35 moves to the right to switch the connection of the palette switch 41, and the contacts 33a,
33b is connected. When the above operations are completed, the circuit and disconnector connections return to the state shown in FIG. 3.
以上のように本発明の回路しや断器ではしや断
動作の後、自動的に送電線路側の導体が接地され
るため、次のような種々の効果を有する。 As described above, the conductor on the power transmission line side is automatically grounded after the circuit disconnection operation of the present invention, so that it has the following various effects.
(1) 送電線路が接地されるためアーキングホーン
間をアークが飛ぶ地絡アーク時間が短かくな
り、そのため再閉路時間を大幅に短縮すること
が可能になる。又従来の再閉路方式では、不可
能と考えられていた1000KVの超高電圧送電線
路における異常電圧対策も、本願の回路しや断
器を用いることによつて実現できる可能性があ
る。(1) Since the power transmission line is grounded, the time required for the arc to travel between the arcing horns is shortened, making it possible to significantly shorten the reclosing time. Furthermore, it is possible that measures against abnormal voltages in 1000 KV ultra-high voltage power transmission lines, which were thought to be impossible with conventional reclosing methods, can be realized by using the circuit breaker and disconnector of the present application.
(2) しや断動作の完了後、再閉路するまで送電線
路は接地されているため、更に送電線路に落雷
があつても、回路しや断器を異常サージから保
護することができる。従つて送電線路には避雷
器を接続する必要がなくなる。(2) Since the power transmission line is grounded until the circuit is reclosed after completion of the breaker operation, even if the power transmission line is struck by lightning, the circuit breaker can be protected from abnormal surges. Therefore, there is no need to connect a lightning arrester to the power transmission line.
(3) 異なる電圧の送電線路を共通の送電鉄塔に保
持して送電する併架送電線において、下位の送
電線路がしや断した場合も上位の送電線路から
の誘導電圧の影響を受けず、短時間で再閉路す
ることができる。(3) In a parallel transmission line where power transmission lines with different voltages are held on a common transmission tower and transmit power, even if the lower transmission line suddenly breaks, it will not be affected by the induced voltage from the upper transmission line. Can be reclosed in a short time.
尚上記の効果を奏するための回路しや断器は第
３図のものに限定されることなく種々の形式のも
のが考えられる。例えば空気操作の代りに油圧や
スプリング等の操作を用いてもよいことはいうま
でもない。 Note that the circuits and disconnectors for producing the above-mentioned effects are not limited to those shown in FIG. 3, and various types can be considered. For example, it goes without saying that hydraulic pressure, spring operation, etc. may be used instead of pneumatic operation.
第１図は従来の送電系統の接続図、第２図は電
鉄塔の側面図、第３図，第５図及び第６図は本願
の回路しや断器の接続及びしや断状態を夫々示す
断面図、第４図は本願の回路しや断器を使用した
送電系統の接続図である。
Ａ，Ｂ，Ｃ…母線、７，８，９…送電線路、３
３ａ，４３ａ…固定接点、３３ｂ，４３ｂ…可動
接点、３９，４９…電磁弁、３８，４５…開放コ
イル、３７，４６…投入コイル、４１，４２…パ
レツトスイツチ。
Figure 1 is a connection diagram of a conventional power transmission system, Figure 2 is a side view of a transmission tower, and Figures 3, 5, and 6 show the connected and disconnected states of the circuit breakers of the present application, respectively. The cross-sectional view shown in FIG. 4 is a connection diagram of a power transmission system using the circuit breaker of the present application. A, B, C... Bus bar, 7, 8, 9... Power transmission line, 3
3a, 43a... Fixed contact, 33b, 43b... Movable contact, 39, 49... Solenoid valve, 38, 45... Opening coil, 37, 46... Closing coil, 41, 42... Palette switch.
Claims (1)
けられてこれらの区間を相互に接離する回路しや
断器であつて、 母線と送電線を接離する主接点３３ａ，３３
ｂ、 送電線と接地間を接離する接地接点４３ａ，４
３ｂ、前記主接点を開閉する第１の駆動手段３
６、駆動手段を制御するスイツチ４０及び前記主
接点３３ａ，３３ｂの開閉に応動して駆動され、
接地接点４３ａ，４３ｂを開閉させる第２の駆動
手段４９、第１の駆動手段３６の駆動後第２の駆
動手段４９を所定の時間差をもつて連携的に駆動
させる連携制御手段を有し、 前記連携制御手段は、 主接点３３ａ，３３ｂの開成によつて閉成され
る第１の接点４１ｂ、 一組の内の一方の回路しや断器の第１の接点４
１ｂの閉成によつて電線を介して接続されている
他方の回路しや断器の接地接点４３ａ，４３ｂを
相互に閉成する手段４１ｂ，４４，４９、 少なくとも一方の回路しや断器の接地接点４３
ａ，４３ｂの閉成から所定時間後に動作して接点
４７を動作させ前記接地接点４３ａ，４３ｂを開
成させる再閉路継電器、 接地接点４３ａ，４３ｂの開成により閉成され
る第２の接点４２ｄ，４２ｅ、及び 第２の接点４２ｄ，４２ｅの閉成により作動
し、主接点３３ａ，３３ｂを閉成させる駆動手段
[Scope of Claims] 1 A plurality of circuit breakers or disconnectors that are provided between one power transmission line or bus section to connect and separate these sections from each other, and a main circuit that connects and disconnects the bus and the power line Contacts 33a, 33
b. Grounding contacts 43a, 4 that connect and disconnect between the power transmission line and the ground
3b, first drive means 3 for opening and closing the main contact;
6. Driven in response to the opening and closing of the switch 40 and the main contacts 33a and 33b that control the drive means,
It has a second drive means 49 for opening and closing the grounding contacts 43a and 43b, and a cooperation control means for driving the second drive means 49 in a coordinated manner with a predetermined time difference after driving the first drive means 36, The cooperative control means includes a first contact 41b that is closed by opening the main contacts 33a and 33b, and a first contact 4 of one of the circuit breakers in the pair.
Means 41b, 44, 49 for mutually closing the grounding contacts 43a, 43b of the other circuit or disconnector connected via the electric wire by closing of the terminal 1b; Ground contact 43
A re-closing relay that operates after a predetermined time after the closing of the grounding contacts 43a and 43b to operate the contact 47 to open the grounding contacts 43a and 43b, and second contacts 42d and 42e that are closed by opening the grounding contacts 43a and 43b. , and a driving means that is operated by closing the second contacts 42d and 42e and closes the main contacts 33a and 33b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6870980A JPS56166705A (en) | 1980-05-22 | 1980-05-22 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6870980A JPS56166705A (en) | 1980-05-22 | 1980-05-22 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56166705A JPS56166705A (en) | 1981-12-22 |
| JPH0122697B2 true JPH0122697B2 (en) | 1989-04-27 |
Family
ID=13381571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6870980A Granted JPS56166705A (en) | 1980-05-22 | 1980-05-22 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56166705A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316103A (en) * | 1976-07-30 | 1978-02-14 | Mitsubishi Heavy Ind Ltd | Control equipment for boiler water supply pump |
| JPS5453237A (en) * | 1977-10-03 | 1979-04-26 | Fuji Electric Co Ltd | Enclosed switch facility |
-
1980
- 1980-05-22 JP JP6870980A patent/JPS56166705A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316103A (en) * | 1976-07-30 | 1978-02-14 | Mitsubishi Heavy Ind Ltd | Control equipment for boiler water supply pump |
| JPS5453237A (en) * | 1977-10-03 | 1979-04-26 | Fuji Electric Co Ltd | Enclosed switch facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56166705A (en) | 1981-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3538278A (en) | High voltage electric circuit breaker | |
| JPH06310000A (en) | Grounding switch | |
| US4733031A (en) | Switching apparatus protected against short circuit currents | |
| CA2310619C (en) | Arcing fault protection system for a switchgear enclosure | |
| US4536814A (en) | D. C. power controller with fuse protection | |
| JP4172916B2 (en) | Short-circuit protection device | |
| JPH06103963B2 (en) | Gas insulated switchgear | |
| US5539365A (en) | Electrical protection apparatus with circuit breaker and effector | |
| JPH0122697B2 (en) | ||
| US2293319A (en) | Electrical circuit interrupter | |
| US3674959A (en) | Circuit interrupter closing resistors | |
| US3168681A (en) | Protective arrangement for an electric circuit breaker | |
| JP3337749B2 (en) | High-speed reclosable earthing switch | |
| JP3372055B2 (en) | High-speed reclosable grounding device | |
| Suzuki et al. | Current interruption by disconnecting switch and earthing switch in GIS | |
| US3492452A (en) | Protective switching devices for capacitors,with movable contacts within arcing electrodes and exhaust valve means | |
| JP3369228B2 (en) | High-speed reclosable earthing switch | |
| JP3432236B2 (en) | High-speed reclosable grounding device | |
| JPH06197419A (en) | Leading-in device for aerial wire | |
| Morton | Coil-less cold-cathode arc chutes for high-speed dc circuit breakers for use on traction systems | |
| JPH02291621A (en) | Method and equipment for changing over electric circuit | |
| JPH079532Y2 (en) | Switchgear | |
| SU266026A1 (en) | DEVICE FOR DISCONNECTING THE TRANSFORMER WITHOUT A SWITCH OF THE NL HIGHER VOLTAGE | |
| JPH079533Y2 (en) | Switchgear | |
| JPH0636659A (en) | High speed reclosing grounding device |