JPH0735829A - Short circuit breaking test method for resistance breaking puffer type gas breaker - Google Patents
Short circuit breaking test method for resistance breaking puffer type gas breakerInfo
- Publication number
- JPH0735829A JPH0735829A JP5155400A JP15540093A JPH0735829A JP H0735829 A JPH0735829 A JP H0735829A JP 5155400 A JP5155400 A JP 5155400A JP 15540093 A JP15540093 A JP 15540093A JP H0735829 A JPH0735829 A JP H0735829A
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- Prior art keywords
- resistance
- short
- breaking
- circuit
- current
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電力系統の発電所ある
いは開閉所に用いられるパッファ式ガス遮断器に係り、
特に、抵抗遮断形パッファ式ガス遮断器の短絡遮断試験
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a puffer-type gas circuit breaker used in a power plant power plant or a switching station,
In particular, it relates to a short circuit breaking test method for a resistance breaking puffer type gas circuit breaker.
【０００２】[0002]
【従来の技術】現在、都市における発電所の建設難によ
る電力不足を補うため、都市から遠く離れた過疎地に発
電所を建設し、長距離送電線によって都市部へ電力を送
電する１０００ｋＶ級のＵＨＶ送電が計画されている。
これに伴ってＵＨＶ系統の開閉機器に関する研究が進め
られているが、特に、ＵＨＶ系統に適用される遮断器と
しては、タンク形のパッファ式ガス遮断器を使用し、さ
らに、抵抗遮断方式を採用する必要がある。これは、送
電線の建設費低減を目的として、開閉サージ電圧を１．
６Ｐ．Ｕ以下とする関係から、７５０Ω程度の抵抗を用
いた抵抗遮断方式によって、遮断サージを抑える必要が
あるからである。このような抵抗遮断形パッファ式ガス
遮断器は、次のように構成されている。すなわち、図２
に示すように、遮断抵抗３１と直列に接続された抵抗接
触子部３２が主接触子部３３と並列に接続されることに
より、１ユニットの遮断部が構成され、このようなユニ
ットが複数個直列に接続された状態で同一のタンク内に
収納されることにより、抵抗遮断形パッファ式ガス遮断
器が構成されている。2. Description of the Related Art Currently, in order to compensate for the power shortage due to the difficulty of constructing a power plant in a city, a power plant is constructed in a depopulated area far away from the city, and a 1000 kV class which transmits power to the city by a long distance transmission line. UHV power transmission is planned.
Along with this, research is being conducted on UHV system switchgear. In particular, a tank-type puffer type gas circuit breaker is used as the circuit breaker applied to the UHV system, and a resistance circuit is adopted. There is a need to. This is because the switching surge voltage is 1.
6P. This is because from the relationship of U or less, it is necessary to suppress the breaking surge by the resistance breaking method using a resistance of about 750Ω. Such a resistance cutoff type puffer type gas circuit breaker is configured as follows. That is, FIG.
As shown in FIG. 3, the resistance contactor portion 32, which is connected in series with the breaking resistance 31, is connected in parallel with the main contactor portion 33 to form one unit breaking portion. The resistance cutoff type puffer type gas circuit breaker is configured by being housed in the same tank while being connected in series.
【０００３】ところで、一般的に、遮断器の遮断性能を
検証するためには、合成試験が行われる。この合成試験
は、低電圧の短絡電流を短絡発電機から供給し、遮断後
の回復電圧を、予め充電したコンデンサバンクから印加
するものである。このような合成試験のうち、電流注入
法は、電圧重畳法とは異なり、過渡回復電圧を電流零点
から独立して印加する試験方法であり、特に、電流零点
近傍では直接試験と等価性が高いと評価されている。By the way, generally, a synthetic test is conducted to verify the breaking performance of a circuit breaker. In this synthesis test, a low-voltage short-circuit current is supplied from a short-circuit generator, and a recovery voltage after interruption is applied from a precharged capacitor bank. Among such synthetic tests, the current injection method is a test method that applies a transient recovery voltage independently from the current zero point, unlike the voltage superposition method, and in particular, it is highly equivalent to the direct test near the current zero point. It is evaluated as.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな電流注入法は、大容量のコンデンサを必要とするの
で、容量の大きい遮断器では、全点で試験するのが困難
になり、ユニット試験が行われる。さらに、抵抗遮断形
のガス遮断器は、７５０Ω程度の遮断抵抗があるため過
渡回復電圧（ＴＲＶ）の減衰が速く、正規の遮断試験を
行おうとすると非常に大容量のコンデンサが必要であ
り、極めてコスト高となる。However, since such a current injection method requires a large-capacity capacitor, it is difficult to test all points in a circuit breaker having a large capacity, and unit test is difficult. Done. Furthermore, since the resistance interruption type gas circuit breaker has a interruption resistance of about 750Ω, the transient recovery voltage (TRV) decays quickly, and a very large capacity capacitor is required to perform a regular interruption test. High cost.
【０００５】また、抵抗接触子部があるために、図３に
示すように、数千Ａから数万Ａの電流を遮断した後の主
接触子部に現れる過渡回復電圧（ＴＲＶ）Ｖ1 と、千Ａ
程度の電流を遮断した後に抵抗接触子部に現れる過渡回
復電圧（ＴＲＶ）Ｖ2 は異なるので、遮断試験は従来の
遮断試験とは違った方法で行う必要がある。なお、図３
は、抵抗遮断形パッファ式ガス遮断器の短絡遮断試験に
おける電圧と電流の関係を示す電圧・電流波形図であ
り、Ｉ1 は主接触子部に流れる短絡電流、Ｉ2 は抵抗接
触子部に流れる短絡電流をそれぞれ示している。Further, since there is a resistive contact portion, as shown in FIG. 3, a transient recovery voltage (TRV) V 1 appears in the main contact portion after the current of several thousands to tens of thousands of amps is cut off. , A
Since the transient recovery voltage (TRV) V 2 that appears in the resistive contact portion after cutting off a certain amount of current is different, it is necessary to perform the breaking test by a method different from the conventional breaking test. Note that FIG.
Is a voltage-current waveform diagram showing the relationship between voltage and current in a short circuit break test of a resistance circuit puffer type gas circuit breaker, I 1 is a short circuit current flowing in the main contact part, and I 2 is a resistance contact part. The respective short-circuit currents that flow are shown.
【０００６】本発明は、以上のような従来の問題点を解
決するために提案されたものであり、その目的は、抵抗
遮断形パッファ式ガス遮断器に対し、最小限の試験設備
容量を使用して、低コストでかつ信頼性の高い短絡遮断
試験を行うことができるような、抵抗遮断形パッファ式
ガス遮断器の短絡遮断試験方法を提供することである。The present invention has been proposed to solve the above-mentioned conventional problems, and its object is to use a minimum test equipment capacity for a resistance cutoff type puffer type gas circuit breaker. Then, it is to provide a short circuit break test method for a resistance circuit breaker type puffer type gas circuit breaker capable of performing a highly reliable short circuit break test at low cost.
【０００７】[0007]
【課題を解決するための手段】本発明は、遮断抵抗と直
列に接続された抵抗接触子部と主接触子部とを並列に接
続してなる抵抗遮断形パッファ式ガス遮断器に対して短
絡電流を供給することにより短絡遮断試験を行う、抵抗
遮断形パッファ式ガス遮断器の短絡遮断試験方法におい
て、次のような特徴を有するものである。すなわち、前
記遮断抵抗の代わりに模擬抵抗を使用し、電流源からの
短絡電流を前記抵抗遮断形パッファ式ガス遮断器に供給
する短絡電流供給ステップと、前記短絡電流供給ステッ
プにおいて供給された短絡電流を前記抵抗遮断形パッフ
ァ式ガス遮断器によって遮断する短絡電流遮断ステップ
と、前記短絡電流遮断ステップの後、電圧源から、遮断
電流の電流零点近傍で前記抵抗遮断形パッファ形ガス遮
断器に電圧を印加する電圧印加ステップとを有すること
を特徴としている。SUMMARY OF THE INVENTION The present invention provides a short circuit to a resistance cutoff type puffer type gas circuit breaker in which a resistance contact part and a main contact part connected in series with a breaking resistance are connected in parallel. A short circuit breaking test method for a resistance circuit breaker puffer type gas circuit breaker, in which a short circuit breaking test is performed by supplying an electric current, has the following features. That is, a simulated resistance is used instead of the breaking resistance, and a short-circuit current supplying step of supplying a short-circuit current from a current source to the resistance breaking type puffer type gas circuit breaker, and a short-circuit current supplied in the short-circuit current supplying step. Is cut off by the resistance cutoff type puffer type gas circuit breaker, and after the short circuit current cutoff step, a voltage is applied from the voltage source to the resistance cutoff type puffer type gas circuit breaker near the current zero point of the cutoff current. And a step of applying a voltage to be applied.
【０００８】具体的には、前記主接触子部の短絡遮断試
験を行う場合に、前記模擬抵抗として、絶縁物を使用す
るか、あるいは、短絡電流遮断後の過渡回復電圧を十分
に減衰できる程度の高い抵抗値の模擬抵抗を使用するこ
とが望ましい。また、前記抵抗接触子部の短絡遮断試験
を行う場合に、前記模擬抵抗を短絡するか、あるいは、
前記模擬抵抗として、前記電流源の容量で定格遮断電流
を十分に供給できる程度の低い抵抗値を有する模擬抵抗
を使用することが望ましい。Specifically, when a short circuit break test of the main contact portion is performed, an insulator is used as the simulated resistance, or the transient recovery voltage after the short circuit current is cut is sufficiently attenuated. It is desirable to use a simulated resistance of high resistance. Further, when performing a short circuit break test of the resistance contact portion, short-circuit the simulated resistance, or,
As the simulated resistance, it is desirable to use a simulated resistance having a resistance value low enough to supply a rated breaking current with the capacity of the current source.
【０００９】[0009]
【作用】以上のような構成を有する本発明の抵抗遮断形
ガス遮断器の短絡遮断試験方法によれば、遮断抵抗の代
わりに模擬抵抗を使用することにより、容易に短絡遮断
試験を行うことができ、また、主接触子部と抵抗接触子
部とに対して、別々に短絡遮断試験を行うことができ
る。According to the short circuit interruption test method of the resistance interruption type gas circuit breaker of the present invention having the above-mentioned constitution, the short circuit interruption test can be easily performed by using the simulated resistance instead of the interruption resistance. In addition, the main contact portion and the resistance contact portion can be separately subjected to the short circuit breaking test.
【００１０】すなわち、主接触子部の短絡遮断試験を行
う場合には、模擬抵抗として抵抗値が無限大の絶縁物を
使用するか、あるいは、過渡回復電圧（ＴＲＶ）を十分
に減衰できる程度の高い抵抗値の模擬抵抗を使用するこ
とにより、主接触子部のみの独立した短絡遮断試験を行
うことができる。That is, when the short-circuit breaking test of the main contact portion is performed, an insulator having an infinite resistance value is used as the simulated resistance, or the transient recovery voltage (TRV) is sufficiently attenuated. By using a simulated resistance having a high resistance value, it is possible to perform an independent short circuit breaking test for only the main contact portion.
【００１１】また、抵抗接触子部の短絡遮断試験を行う
場合には、模擬抵抗を短絡するか、あるいは、電流源の
容量で定格遮断電流を十分に供給できる程度の低い抵抗
値を有する模擬抵抗を使用することにより、抵抗接触子
部のみの独立した試験を、遮断抵抗を無視して行うこと
ができるので、７５０Ω程度の遮断抵抗をそのまま使用
した場合に比べて、必要とする試験設備の容量を格段に
小さくすることができる。Further, when the short-circuit breaking test of the resistance contact portion is conducted, the simulated resistance is short-circuited or the simulated resistance having a low resistance value such that the rated breaking current can be sufficiently supplied by the capacity of the current source. By using, it is possible to carry out an independent test of only the resistance contact part, ignoring the breaking resistance, so the required capacity of the test equipment is greater than when using a breaking resistance of about 750Ω as it is. Can be significantly reduced.
【００１２】[0012]
【実施例】以下には、本発明による抵抗遮断形パッファ
式ガス遮断器の短絡遮断試験方法の一実施例について、
図１を参照して説明する。この場合、図１は、本実施例
における短絡遮断試験を行うための短絡遮断試験回路の
一例を示す回路図である。この図１に示すように、短絡
遮断試験回路は、大別して、電流源回路１、電圧源回路
２、および試験対象となる抵抗遮断形パッファ式ガス遮
断器（以下には供試器と称する）３から構成される。EXAMPLES An example of a short circuit interruption test method for a resistance interruption puffer type gas circuit breaker according to the present invention will be described below.
This will be described with reference to FIG. In this case, FIG. 1 is a circuit diagram showing an example of a short circuit break test circuit for performing a short circuit break test in the present embodiment. As shown in FIG. 1, the short circuit interruption test circuit is roughly classified into a current source circuit 1, a voltage source circuit 2, and a resistance interruption type puffer type gas circuit breaker (hereinafter referred to as a test device) to be tested. It consists of 3.
【００１３】このうち、電流源回路１は、短絡発電機
４、投入器５、変圧器６、および補助遮断器７から構成
されている。すなわち、短絡発電機４の出力が、投入器
５を介して変圧器６の１次側に接続され、この変圧器６
の２次側から補助遮断器７を介して供試器３の高圧側に
接続されている。また、電圧源回路２は、主コンデンサ
２１、ギャップ２２、始動ギャップ２３、リアクトル２
４、電圧波形調整素子２５から構成されている。一方、
供試器３は、遮断抵抗に代わる模擬抵抗９と抵抗接触子
部１０とが直列に接続され、これらの模擬抵抗９および
抵抗接触子部１０の直列接続と並列に主接触子部８が接
続されて、１ユニットの遮断部が形成され、さらに、そ
れらのユニットが複数個直列に接続して構成されてい
る。図１では、一例として２つのユニットを直列してな
る供試器３が示されている。Of these, the current source circuit 1 is composed of a short-circuit generator 4, a closing device 5, a transformer 6, and an auxiliary circuit breaker 7. That is, the output of the short-circuit generator 4 is connected to the primary side of the transformer 6 via the injector 5, and the transformer 6
Is connected to the high-voltage side of the EUT 3 via the auxiliary circuit breaker 7. Further, the voltage source circuit 2 includes a main capacitor 21, a gap 22, a starting gap 23, and a reactor 2.
4 and a voltage waveform adjusting element 25. on the other hand,
In the EUT 3, a simulated resistance 9 instead of a breaking resistance and a resistance contactor section 10 are connected in series, and the main contactor section 8 is connected in parallel with the series connection of the simulated resistance 9 and the resistance contactor section 10. Thus, one unit of the cutoff portion is formed, and a plurality of these units are connected in series. In FIG. 1, as an example, a test device 3 in which two units are connected in series is shown.
【００１４】次に、以上のような構成を有する短絡遮断
試験回路を使用した短絡遮断試験方法について、主接触
子部の試験方法、抵抗接触子部の試験方法の順に説明す
る。Next, a short-circuit breaking test method using the short-circuit breaking test circuit having the above construction will be described in order of the main contact portion testing method and the resistance contact portion testing method.
【００１５】まず、主接触子部８の短絡遮断試験を行う
場合には、模擬抵抗９として、無限大の抵抗値、あるい
は、過渡回復電圧（ＴＲＶ）を十分に減衰できる程度の
高い抵抗値の模擬抵抗を使用する。そして、試験に際し
ては、まず、補助遮断器７を閉じた状態で投入器５を投
入する。これにより、短絡発電機４からの出力が、数十
ｋＡの短絡電流となって、供試器３の主接触子部８に流
れる。この短絡電流の供給に対して、供試器３に開極指
令が与えられると同時に、補助遮断器７にも開極指令が
与えられ、供試器３の主接触子部８と補助遮断器７とが
開極動作し、電流源回路１からの短絡電流を遮断する。First, in the case of conducting a short circuit break test of the main contact portion 8, the simulated resistance 9 has an infinite resistance value or a resistance value high enough to attenuate the transient recovery voltage (TRV). Use simulated resistance. Then, in the test, first, the injector 5 is closed with the auxiliary circuit breaker 7 closed. As a result, the output from the short-circuit generator 4 becomes a short-circuit current of several tens of kA and flows into the main contactor portion 8 of the DUT 3. In response to the supply of this short-circuit current, the EUT 3 is given an opening command, and at the same time, the auxiliary circuit breaker 7 is also given an opening command, so that the main contactor portion 8 of the EUT 3 and the auxiliary circuit breaker are provided. 7 and 7 perform an opening operation to cut off the short-circuit current from the current source circuit 1.
【００１６】このような短絡電流の遮断後、電圧源回路
２から供試器３に対して、電流源回路１からの短絡電流
の零点直前に、図３に示す主接触子部の過渡回復電圧
（ＴＲＶ）Ｖ1 に相当する電圧Ｖ1 が印加される。より
詳細には、まず、電圧源回路２の主コンデンサ２１を予
め充電しておき、主接触子部８を流れる電流を図示して
いない検出器で検出し、電流零点前で、図示していない
パルス発生器より信号を出して始動ギャップ２３を動作
させ、主コンデンサ２４から供試器３に電圧を印加す
る。そして、遮断後の過渡回復電圧を模擬するためにリ
アクトル２４と電圧波形調整素子２５によって波形を調
整する。After the short-circuit current is cut off, the transient recovery voltage of the main contact portion shown in FIG. 3 is immediately before the zero point of the short-circuit current from the current source circuit 1 from the voltage source circuit 2 to the EUT 3. A voltage V 1 corresponding to (TRV) V 1 is applied. More specifically, first, the main capacitor 21 of the voltage source circuit 2 is charged in advance, and the current flowing through the main contactor portion 8 is detected by a detector (not shown). A signal is output from the pulse generator to operate the starting gap 23, and a voltage is applied from the main capacitor 24 to the DUT 3. Then, the waveform is adjusted by the reactor 24 and the voltage waveform adjusting element 25 in order to simulate the transient recovery voltage after interruption.
【００１７】次に、抵抗接触子部１０の試験を行う場合
には、前準備として、模擬抵抗９を短絡しておくか、あ
るいは、模擬抵抗９として、短絡発電機４の容量で定格
遮断電流を十分に供給できる程度の低い抵抗値の模擬抵
抗を使用する。そして、試験に際しては、まず、補助遮
断器７を閉じた状態で投入器５を投入する。これによ
り、短絡発電機４からの出力が、数ｋＡの短絡電流とな
って、供試器３の主接触子部８に流れる。この短絡電流
の供給に対して、供試器３に開極指令が与えられると、
まず、主接触子部８が最初に開極動作し、電流零点で遮
断する。その後、短絡電流は抵抗接触子部１０に流れ
る。続いて、抵抗接触子部１０と補助遮断器７が開極動
作し、電流源回路１からの短絡電流を遮断する。このよ
うな短絡電流の遮断後、電圧源回路２から供試器３に対
して、電流源回路１からの短絡電流の零点直前に、図３
に示す抵抗接触子部の過渡回復電圧（ＴＲＶ）Ｖ2 に相
当する電圧Ｖ2 が印加される。Next, when the resistance contactor 10 is tested, as a preparation, the simulated resistor 9 is short-circuited, or the simulated resistor 9 is used as the simulated resistor 9 with the capacity of the short-circuit generator 4 and the rated breaking current. Use a simulated resistor with a low resistance value that can sufficiently supply the voltage. Then, in the test, first, the injector 5 is closed with the auxiliary circuit breaker 7 closed. As a result, the output from the short-circuit generator 4 becomes a short-circuit current of several kA and flows into the main contactor portion 8 of the DUT 3. When an opening command is given to the EUT 3 for the supply of this short-circuit current,
First, the main contact portion 8 first performs the opening operation, and cuts off at the current zero point. After that, the short-circuit current flows through the resistive contact portion 10. Then, the resistance contact portion 10 and the auxiliary circuit breaker 7 are operated to open, and the short-circuit current from the current source circuit 1 is cut off. After the short circuit current is cut off, the voltage source circuit 2 sends the EUT 3 a point immediately before the zero point of the short circuit current from the current source circuit 1 as shown in FIG.
The voltage V 2 corresponding to the transient recovery voltage (TRV) V 2 of the resistance contact portion shown in FIG.
【００１８】以上のように、本実施例においては、遮断
抵抗の代わりに模擬抵抗９を使用することにより、容易
に短絡遮断試験を行うことができ、また、供試器３の主
接触子部８と抵抗接触子部１０とに対して、別々に短絡
遮断試験を行うことができる。そして、主接触子部８の
短絡遮断試験を行う場合と抵抗接触子部１０の短絡遮断
試験を行う場合とにおいて、異なる模擬抵抗９を使い分
けることにより、信頼性の高い独立した短絡遮断試験を
行うことができる。特に、抵抗接触子部１０の短絡遮断
試験を行う場合には、模擬抵抗９を短絡するか、あるい
は、短絡発電機４の容量で定格遮断電流をからの過渡回
復電圧（ＴＲＶ）をほとんど減衰しない程度の低い抵抗
値を有する模擬抵抗９を使用することにより、抵抗接触
子部１０のみの独立した試験を遮断抵抗を無視して行う
ことができるので、７５０Ω程度の遮断抵抗をそのまま
使用した場合に比べて、必要とする主コンデンサの容量
を格段に小さくすることができ、コストを大幅に削減で
きる。As described above, in this embodiment, by using the simulated resistor 9 instead of the breaking resistor, the short-circuit breaking test can be easily performed, and the main contactor portion of the DUT 3 can be easily tested. It is possible to separately perform a short circuit break test with respect to 8 and the resistance contact portion 10. Then, by using different simulated resistors 9 depending on whether the short-circuit breaking test of the main contact portion 8 and the short-circuit breaking test of the resistance contact portion 10 are performed, a highly reliable independent short-circuit breaking test is performed. be able to. In particular, when the short-circuit break test of the resistance contact portion 10 is performed, the simulated resistance 9 is short-circuited, or the transient recovery voltage (TRV) from the rated break current with the capacity of the short-circuit generator 4 is hardly attenuated. By using the simulated resistance 9 having a low resistance value, an independent test of only the resistance contact portion 10 can be performed without regard to the breaking resistance, so that when the breaking resistance of about 750Ω is used as it is. In comparison, the required capacity of the main capacitor can be significantly reduced, and the cost can be significantly reduced.
【００１９】なお、本発明は、前記実施例に限定される
ものではなく、例えば、短絡電流供給方法と、短絡遮断
遮断方法、および電圧印加方法などの具体的な手順は適
宜変更可能である。また、電流源や電圧源などの具体的
な構成は、短絡遮断試験方法の具体的な手順に応じて適
宜選択される。The present invention is not limited to the above-mentioned embodiment, and specific procedures such as a short-circuit current supply method, a short-circuit breaking and breaking method, and a voltage application method can be appropriately changed. Further, the specific configuration of the current source, the voltage source, etc. is appropriately selected according to the specific procedure of the short circuit interruption test method.
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、遮
断抵抗の代わりに模擬抵抗を使用することにより、最小
限の試験設備容量を使用して、低コストでかつ信頼性の
高い短絡遮断試験を行うことができるような、抵抗遮断
形パッファ式ガス遮断器の短絡遮断試験方法を提供する
ことができる。As described above, according to the present invention, the simulated resistance is used in place of the breaking resistance, so that the minimum test facility capacity is used, and the cost is short and the circuit is highly reliable. It is possible to provide a short circuit breaking test method for a resistance breaker type puffer type gas circuit breaker capable of performing a test.
【図１】本発明による抵抗遮断形パッファ式ガス遮断器
の短絡遮断試験方法の一実施例を示す図であり、特に、
短絡遮断試験を行うための短絡遮断試験回路の一例を示
す回路図。FIG. 1 is a diagram showing an embodiment of a short circuit breaking test method for a resistance breaking puffer type gas circuit breaker according to the present invention, and in particular,
FIG. 3 is a circuit diagram showing an example of a short circuit break test circuit for performing a short circuit break test.
【図２】遮断抵抗形パッファ式ガス遮断器の構成を示す
回路図。FIG. 2 is a circuit diagram showing a configuration of a breaking resistance type puffer type gas circuit breaker.
【図３】抵抗遮断形パッファ式ガス遮断器の短絡遮断試
験における電圧と電流の関係を示す電圧・電流波形図。FIG. 3 is a voltage / current waveform diagram showing the relationship between voltage and current in a short circuit breaking test of a resistance breaking puffer type gas circuit breaker.
１…電流源回路 ２…電圧源回路 ３…供試器（試験対象となる抵抗遮断形パッファ式ガス
遮断器） ４…短絡発電機 ５…投入器 ６…変圧器 ７…補助遮断器 ８…主接触子部 ９…模擬抵抗 １０…抵抗接触子部 ２１…主コンデンサ ２２…ギャップ ２３…始動ギャップ ２４…リアクトル ２５…電圧波形調整素子1 ... Current source circuit 2 ... Voltage source circuit 3 ... EUT (Resistance cutoff type puffer type gas circuit breaker to be tested) 4 ... Short-circuit generator 5 ... Inserter 6 ... Transformer 7 ... Auxiliary breaker 8 ... Main Contact part 9 ... Simulated resistance 10 ... Resistance contact part 21 ... Main capacitor 22 ... Gap 23 ... Starting gap 24 ... Reactor 25 ... Voltage waveform adjusting element
Claims (3)
部と主接触子部とを並列に接続してなる抵抗遮断形パッ
ファ式ガス遮断器に対して短絡電流を供給することによ
り短絡遮断試験を行う、抵抗遮断形パッファ式ガス遮断
器の短絡遮断試験方法において、 前記遮断抵抗の代わりに模擬抵抗を使用し、 電流源からの短絡電流を前記抵抗遮断形パッファ式ガス
遮断器に供給する短絡電流供給ステップと、 前記短絡電流供給ステップにおいて供給された短絡電流
を前記抵抗遮断形パッファ式ガス遮断器によって遮断す
る短絡電流遮断ステップと、 前記短絡電流遮断ステップの後、電圧源から、遮断電流
の電流零点近傍で前記抵抗遮断形パッファ形ガス遮断器
に電圧を印加する電圧印加ステップとを有することを特
徴とする抵抗遮断形パッファ式ガス遮断器の短絡遮断試
験方法。1. A short circuit interruption by supplying a short circuit current to a resistance interruption puffer type gas circuit breaker in which a resistance contact section connected in series with a breaking resistance and a main contact section are connected in parallel. In the short circuit breaking test method of the resistance breaking type puffer type gas circuit breaker, a simulated resistance is used instead of the breaking resistance, and a short circuit current from a current source is supplied to the resistance breaking type puffer type gas circuit breaker. A short-circuit current supply step, a short-circuit current interruption step of interrupting the short-circuit current supplied in the short-circuit current supply step by the resistance interruption type puffer type gas circuit breaker, and a interruption current from a voltage source after the short-circuit current interruption step. And a voltage applying step of applying a voltage to the resistance cutoff type puffer type gas circuit breaker in the vicinity of the current zero point of the resistance cutoff type puffer formula. Short-circuit breaking test method of the scan circuit breaker.
合に、前記模擬抵抗として、絶縁物を使用するか、ある
いは、短絡電流遮断後の過渡回復電圧を十分に減衰でき
る程度の高い抵抗値の模擬抵抗を使用することを特徴と
する請求項１に記載の抵抗遮断形パッファ式ガス遮断器
の短絡遮断試験方法。2. When performing a short-circuit breaking test of the main contactor, an insulator is used as the simulated resistance, or a high resistance enough to attenuate the transient recovery voltage after the short-circuit current is cut off. The short circuit interruption test method of the resistance interruption type puffer type gas circuit breaker according to claim 1, wherein a simulated resistance of a value is used.
場合に、前記模擬抵抗を短絡するか、あるいは、前記模
擬抵抗として、前記電流源の容量で定格遮断電流を十分
に供給できる程度の低い抵抗値の模擬抵抗を使用するこ
とを特徴とする請求項１に記載の抵抗遮断形パッファ式
ガス遮断器の短絡遮断試験方法。3. When performing a short-circuit breaking test of the resistance contact portion, the simulated resistance is short-circuited or the rated resistance of the current source is sufficient to supply a rated breaking current as the simulated resistance. The short circuit interruption test method of the resistance interruption type puffer type gas circuit breaker according to claim 1, wherein a simulated resistance having a low resistance value is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5155400A JPH0735829A (en) | 1993-06-25 | 1993-06-25 | Short circuit breaking test method for resistance breaking puffer type gas breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5155400A JPH0735829A (en) | 1993-06-25 | 1993-06-25 | Short circuit breaking test method for resistance breaking puffer type gas breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0735829A true JPH0735829A (en) | 1995-02-07 |
Family
ID=15605144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5155400A Pending JPH0735829A (en) | 1993-06-25 | 1993-06-25 | Short circuit breaking test method for resistance breaking puffer type gas breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735829A (en) |
-
1993
- 1993-06-25 JP JP5155400A patent/JPH0735829A/en active Pending
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