JPH06118146A - Synthetic short-circuit testing method of breaker - Google Patents
Synthetic short-circuit testing method of breakerInfo
- Publication number
- JPH06118146A JPH06118146A JP26262292A JP26262292A JPH06118146A JP H06118146 A JPH06118146 A JP H06118146A JP 26262292 A JP26262292 A JP 26262292A JP 26262292 A JP26262292 A JP 26262292A JP H06118146 A JPH06118146 A JP H06118146A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- breaker
- current
- short
- test
- 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.)
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、遮断器の合成短絡試験
法、詳しくは、遮断器の合成等価試験法の中でスキーツ
法を適用した場合のアーク延長方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic short circuit test method for circuit breakers, and more particularly to an arc extension method when the Skeitz method is applied in the synthetic equivalent test method for circuit breakers.
【０００２】[0002]
【従来の技術】図３に遮断器の合成短絡試験におけるス
キーツ法の基本回路を示す。同図において、１は電流源
回路、２は電圧源回路、ＳPは供試遮断器、ＡＧは電流
源としての短絡発電機、Ｃ1は短絡発電機保護コンデン
サ、Ｓ1は保護継電器、Ｌ1は限流リアクトル、Ｓ2は投
入器、Ｓhは補助遮断器、ＴＲは電圧源としての昇圧用
変圧器、ＲSは直列抵抗、Ｃｅは過渡回復電圧（ＴＲ
Ｖ）調整コンデンサ、ＡＬは振動電流を供試遮断器ＳP
に供給するアーク延長回路である。2. Description of the Related Art FIG. 3 shows a basic circuit of the Skeitz method in a composite short circuit test of a circuit breaker. In the figure, 1 is a current source circuit, 2 is a voltage source circuit, S P is a circuit breaker under test, AG is a short-circuit generator as a current source, C 1 is a short-circuit generator protective capacitor, S 1 is a protective relay, L 1 is a current limiting reactor, S 2 is a make-up device, S h is an auxiliary circuit breaker, TR is a step-up transformer as a voltage source, R S is a series resistor, Ce is a transient recovery voltage (TR
V) tuning capacitors, AL test breaker vibration current S P
It is an arc extension circuit to supply to.
【０００３】合成試験は、投入器Ｓ2を投入し、短絡発
電機ＡＧから補助遮断器Ｓnを介して供試遮断器ＳPに短
絡電流ＩMを流し、供給遮断器ＳPの開極時に昇圧変圧器
ＴＲからの高電圧を抵抗ＲSを介して供試遮断器ＳPに印
加することで遮断性能を検証するものであるが、供試遮
断器ＳPの開極から最初の電流零点を越えて確実にアー
ク延長させる必要がある。In the synthesis test, the closing device S 2 is turned on, a short circuit current I M is caused to flow from the short circuit generator AG to the test circuit breaker S P via the auxiliary circuit breaker S n , and the supply circuit breaker S P is opened. The high voltage from the step-up transformer TR is sometimes applied to the test breaker S P via the resistor R S to verify the breaking performance. The current from the opening of the test breaker S P to the first current It is necessary to reliably extend the arc beyond the zero point.
【０００４】このアーク延長のため、最初の電流零点直
前にアーク延長回路ＡＬから供試遮断器ＳPに電流を重
畳させる。For this arc extension, a current is superimposed on the test breaker S P from the arc extension circuit AL immediately before the first current zero point.
【０００５】アーク延長方法には、例えば実開昭５３−
４５４６１号（スキーツ法），特公昭６１−１９９４２
号，特公昭６１−１９９４１号，特公昭６１−１９９４
０号（ワイル法）等がある。As an arc extension method, for example, the actual development 53-
No. 45461 (Skeets method), Japanese Patent Publication No. 61-19922
No. 61-1994, Japanese Patent Publication No. 61-1994
There is No. 0 (Weil method).
【０００６】アーク延長方法については種々の合成試験
法（ワイル法，スキーツ法，シーメンス法等）のいずれ
にも必要な技術であり、各種遮断器（ＯＣＢ，ＡＢＢ，
ＧＣＢ，ＶＣＢ等）の試験に広く適用されている。The arc extension method is a technique necessary for all of various synthetic test methods (Weyl method, Skeitz method, Siemens method, etc.), and various circuit breakers (OCB, ABB,
It is widely applied to the tests of GCB, VCB, etc.).
【０００７】[0007]
【発明が解決しようとする課題】上記従来遮断器の合成
試験法は、(1)アーク延長装置及び制御装置が多数必要
であり、制御が複雑である。(2)アーク延長回路が補助
遮断器の電源側に配線されており、補助遮断器と供試遮
断器の２台直列遮断器をアーク延長する必要がある。
(3)供試遮断器の性能に反比例してアーク延長がしずら
くなる、等の問題がある。The above-mentioned conventional circuit breaker synthetic test method requires (1) a large number of arc extension devices and control devices, and control is complicated. (2) The arc extension circuit is wired on the power supply side of the auxiliary circuit breaker, and it is necessary to extend the arc of the two series circuit breakers, the auxiliary circuit breaker and the test circuit breaker.
(3) There is a problem that arc extension becomes difficult in inverse proportion to the performance of the test breaker.
【０００８】本発明は、従来のこのような問題に鑑みて
なされたものであり、その目的とするところは、アーク
延長回路を設けることなく電圧源回路等を切り離すこと
によりアーク延長がなしうる遮断器の合成短絡試験法を
提供することにある。The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to cut off a voltage which can be extended by disconnecting a voltage source circuit or the like without providing an arc extension circuit. The purpose of the present invention is to provide a synthetic short-circuit test method for vessels.
【０００９】[0009]
【課題を解決するための手段及び方法】上記目的を達成
するために、本発明における遮断器の合成短絡試験法
は、電流源回路から補助遮断器を介して供試遮断器に電
流を流し、電圧源回路から供試遮断器に電圧を印加し、
供試遮断器の開極後から最初に迎える短絡電流零点通過
後まで電流源回路及び補助遮断器並びに供試遮断器から
電圧源回路及び電流源回路の保護コンデンサを切離し、
前記短絡電流零点で短絡発電極固有周波数と母線の固有
周波数のみの過渡回復電圧を発生させ供試遮断器のアー
ク延長させるものである。In order to achieve the above object, the synthetic short-circuit test method for a circuit breaker according to the present invention is such that a current is supplied from a current source circuit to an under-test circuit breaker via an auxiliary circuit breaker. Apply voltage from the voltage source circuit to the circuit breaker under test,
Disconnect the protective capacitors of the voltage source circuit and the current source circuit from the current source circuit and the auxiliary circuit breaker and the test circuit breaker from the opening of the test circuit breaker to the passing of the first short-circuit current zero point.
At the zero point of the short-circuit current, a transient recovery voltage of only the natural frequency of the short-circuiting electrode and the natural frequency of the bus bar is generated to extend the arc of the circuit breaker under test.
【００１０】そして、アーク延長が成切した次の電流の
半波の中で補助遮断器を開極すると共に、切り離されて
いる電圧源回路並び電流源回路の保護コンデンサを元の
状態に接続し、２回目の電流零点で規定の過渡回復電圧
を発生させる。Then, the auxiliary circuit breaker is opened in the next half wave of the current when the arc extension is completed, and the protection capacitors of the disconnected voltage source circuit and current source circuit are connected to the original state. The specified transient recovery voltage is generated at the second current zero point.
【００１１】[0011]
【実施例】本発明の実施例を図面を参照して説明する。
なお、図１中従来図３に示したものと同一構成部分は、
同一符号を付してその重複する説明を省略する。Embodiments of the present invention will be described with reference to the drawings.
In addition, in FIG. 1, the same components as those shown in FIG.
The same reference numerals are given and the duplicated description is omitted.
【００１２】図１において、ＳＷ1及びＳＷ2は昇圧用変
圧器の入力側及び直列抵抗ＲSの出力側に接続された電
圧源回路２の分離用スイッチ、ＳＷ3は短絡発電機保護
コンデンサＣ1分離用スイッチである。その他の回路は
従来図３のものと同じである。In FIG. 1, SW 1 and SW 2 are isolation switches of the voltage source circuit 2 connected to the input side of the step-up transformer and the output side of the series resistor R S , and SW 3 is a short-circuit generator protection capacitor C. 1 Separation switch. Other circuits are the same as those of the conventional circuit shown in FIG.
【００１３】次に、図１，図２について本発明の方法を
説明する。Next, the method of the present invention will be described with reference to FIGS.
【００１４】(1)スイッチＳＷ1〜ＳＷ3及び補助遮断器
Ｓｈを閉じた状態で、投入器Ｓ2を投入して電流源回路
１から供試遮断器ＳPに短絡電流を供給する（図２Ａ
点）。これにより供試遮断器ＳPが適当な点で開極する
（図２点Ｂ）。[0014] (1) in the closed state of the switch SW 1 to SW 3 and the auxiliary circuit breaker Sh, supplies a short-circuit current from the current source circuit 1 to put the insertion unit S 2 in the test circuit breaker S P (FIG. 2A
point). As a result, the test breaker S P opens at an appropriate point (point B in FIG. 2).
【００１５】(2)供試遮断器ＳPが開極後次の零点（図２
のＣ点）までにスイッチＳＷ1，ＳＷ2及びＳＷ3をオフ
にして短絡電流の次の零点（図２のＣ点）通過後まで電
圧源回路２及び短絡発電機保護コンデンサＣ1を切り離
しておく。補助遮断器Ｓhは短絡電流零点通過後まで投
入状態にしておく。(2) The test breaker S P has the next zero point (Fig. 2) after opening.
By turning off the switches SW 1 , SW 2 and SW 3 until the next zero point (point C in FIG. 2) of the short-circuit current, the voltage source circuit 2 and the short-circuit generator protection capacitor C 1 are disconnected. deep. The auxiliary circuit breaker Sh is kept closed until after the short-circuit current zero point has passed.
【００１６】供試遮断器ＳPは開極後最初に迎える短絡
電流零点（図２のＣ点）で遮断しようとする。The test breaker S P attempts to break at the first short-circuit current zero point (point C in FIG. 2) that is reached after opening.
【００１７】この時の過渡回復電圧（ＴＲＶ）は電圧源
回路２及び短絡発電機保護コンデンサＣ1が回路から切
り離されているので、短絡発電機Ａの固有周波数と母線
の固有周波数に依存することになる。The transient recovery voltage (TRV) at this time depends on the natural frequency of the short-circuit generator A and the natural frequency of the bus bar because the voltage source circuit 2 and the short-circuit generator protection capacitor C 1 are disconnected from the circuit. become.
【００１８】それぞれの固有周波数は短絡発電機が３０
〜５０ＫＨZ、母線が５００〜１０００ＫＨZと非常に高
いので、ＴＲＶが発生する途中で必ず閃絡し、アークを
延長する。即ち、アーク延長装置を用いることなくアー
クを延長することができる。The respective natural frequencies of the short-circuit generator are 30
~50KH Z, because the bus is very high and 500~1000KH Z, be sure to flashover in the middle of TRV occurs, to extend the arc. That is, the arc can be extended without using the arc extension device.
【００１９】(3)アーク電流の次の半波の適当な時間
（図２のＤ点）にスイッチＳＷ1〜ＳＷ3を投入すると共
に補助遮断器Ｓhを開極する。これにより供試遮断器ＳP
が迎える２回目の電流零点（図２のＥ点）では供試遮断
器ＳP及び補助遮断器Ｓhが同時遮断する。このとき電圧
源回路２が接続されているので、供試遮断器ＳPに規定
の過渡回復電圧が発生する。[0019] (3) opening the auxiliary breaker S h with the next half-wave of the appropriate time of the arc current (D point in FIG. 2) turning on the switch SW 1 to SW 3. Thus tested breaker S P
Second current zero (E point in FIG. 2) in the test circuit breaker S P and the auxiliary circuit breaker S h is cut off simultaneously welcome is. At this time, since the voltage source circuit 2 is connected, a specified transient recovery voltage is generated in the test breaker S P.
【００２０】以上のように、この実施例によれば、アー
ク延長回路を使用することなく遮断器の合成等価試験を
行うことができるので、制御が簡単になると共に試験ミ
スの発生がなくなる。As described above, according to this embodiment, since the synthetic equivalent test of the circuit breaker can be performed without using the arc extension circuit, the control becomes simple and the occurrence of the test error does not occur.
【００２１】[0021]
【発明の効果】本発明は、上記のとおり構成されている
ので、次に記載する効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００２２】(1)アーク延長回路を設けることなく短絡
発電機及び母線から短絡発電機保護コンデンサ及び電圧
源回路を切り離すスイッチを設けるだけで、アークを延
長することができる。(1) The arc can be extended only by providing a switch for disconnecting the short-circuit generator protection capacitor and the voltage source circuit from the short-circuit generator and the bus without providing the arc extension circuit.
【００２３】(2)そのため試験装置及びその制御が簡単
になる。(2) Therefore, the test apparatus and its control are simplified.
【００２４】(3)短絡発電機及び母線に発生する固有振
動周波数が非常に高いので、遮断性能のよい遮断器のア
ーク延長も確実にできる。(3) Since the natural vibration frequency generated in the short-circuit generator and the busbar is very high, the arc extension of the circuit breaker having good breaking performance can be surely performed.
【図１】本発明の実施例を示す回路図。FIG. 1 is a circuit diagram showing an embodiment of the present invention.
【図２】実施例を説明するタイミング図。FIG. 2 is a timing diagram illustrating an example.
【図３】スキーツ法の基本回路を示す回路図。FIG. 3 is a circuit diagram showing a basic circuit of the Skeets method.
１…電流源回路 ２…電圧源回路 ＡＧ…短絡発電機 ＡＬ…アーク延長回路 Ｃ1…短絡発電機保護コンデンサ Ｃｅ…過渡回復電圧調整コンデンサ Ｌ1…減流リアクトル Ｒｅ…直列抵抗 Ｓ1…保護遮断器 Ｓ2…投入器 Ｓh…補助遮断器 ＳP…供試遮断器 ＳＷ1，ＳＷ2…電圧源回路分離スイッチ ＳＷ3…短絡発電機保護コンデンサ分離スイッチ ＴＲ…昇圧変圧器1 ... current source circuit 2 ... voltage source circuit AG ... short generator AL ... arc stretching circuit C 1 ... short-circuit generator protection capacitor Ce ... transient recovery voltage regulating capacitor L 1 ... flow reducer reactor Re ... series resistor S 1 ... protection blocking Device S 2・ ・ ・ Shooter S h・ ・ ・ Auxiliary circuit breaker S P・ ・ ・ Test circuit breaker SW 1 , SW 2・ ・ ・ Voltage source circuit separation switch SW 3・ ・ ・ Short circuit generator protection capacitor separation switch TR ・ ・ ・ Boost transformer
Claims (2)
遮断器に電流を流し、電圧源回路から供試遮断器に電圧
を印加し、 供試遮断器の開極後から最初に迎える短絡電流零点通過
後まで電流源回路及び補助遮断器並びに供試遮断器から
電圧源回路及び電流源回路の保護コンデンサを切離し、
前記短絡電流零点で短絡発電機固有周波数と母線の固有
周波数のみの過渡回復電圧を発生させ供試遮断器のアー
ク延長させることを特長とした遮断器の合成短絡試験
法。1. A current is supplied from a current source circuit to a test breaker via an auxiliary circuit breaker, a voltage is applied to the test breaker from a voltage source circuit, and the test breaker first comes to contact after opening. Disconnect the protection capacitors of the voltage source circuit and current source circuit from the current source circuit, auxiliary circuit breaker, and test circuit breaker until after passing the short-circuit current zero point,
A synthetic short-circuit test method for a circuit breaker characterized in that a transient recovery voltage of only the natural frequency of the short-circuit generator and the natural frequency of the bus is generated at the zero point of the short-circuit current to extend the arc of the circuit breaker under test.
中で補助遮断器を開極すると共に、切り離されている電
圧源回路並び電流源回路の保護コンデンサを元の状態に
接続することを特徴とした請求項１記載の遮断器の合成
短絡試験法。2. The auxiliary circuit breaker is opened in the next half wave of the current when the arc extension is cut off, and the disconnected voltage source circuit and the protection capacitor of the current source circuit are connected to the original state. The synthetic short circuit test method for the circuit breaker according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26262292A JPH06118146A (en) | 1992-10-01 | 1992-10-01 | Synthetic short-circuit testing method of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26262292A JPH06118146A (en) | 1992-10-01 | 1992-10-01 | Synthetic short-circuit testing method of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06118146A true JPH06118146A (en) | 1994-04-28 |
Family
ID=17378353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26262292A Pending JPH06118146A (en) | 1992-10-01 | 1992-10-01 | Synthetic short-circuit testing method of breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06118146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012037948A1 (en) * | 2010-09-20 | 2012-03-29 | Stevo Electric Bvba | Device for testing of high speed dc breakers |
| CN109254242A (en) * | 2018-09-18 | 2019-01-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of ablation test circuit and breaker arcing contact ablation state test method |
-
1992
- 1992-10-01 JP JP26262292A patent/JPH06118146A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012037948A1 (en) * | 2010-09-20 | 2012-03-29 | Stevo Electric Bvba | Device for testing of high speed dc breakers |
| CN109254242A (en) * | 2018-09-18 | 2019-01-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of ablation test circuit and breaker arcing contact ablation state test method |
| CN109254242B (en) * | 2018-09-18 | 2023-09-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Ablation test loop and method for testing ablation state of arc contact of circuit breaker |
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