JPH0739070A - Spot network power receiving and transforming apparatus - Google Patents
Spot network power receiving and transforming apparatusInfo
- Publication number
- JPH0739070A JPH0739070A JP5181260A JP18126093A JPH0739070A JP H0739070 A JPH0739070 A JP H0739070A JP 5181260 A JP5181260 A JP 5181260A JP 18126093 A JP18126093 A JP 18126093A JP H0739070 A JPH0739070 A JP H0739070A
- Authority
- JP
- Japan
- Prior art keywords
- network
- power
- power receiving
- distribution line
- line
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、スポットネットワーク
受変電システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spot network power receiving and transforming system.
【０００２】[0002]
【従来の技術】最近においては、益々土地の立体的利用
が盛んになり、ビルディングも高層化傾向にある。この
高層化されたビルディングにおいては、電力の負荷分布
が垂直方向に増加することは勿論のこと、負荷容量も非
常に大きく、しかも公共的に重要な電気設備が多く含ま
れている。2. Description of the Related Art In recent years, three-dimensional use of land has become more and more popular, and buildings tend to be high-rise. In this high-rise building, not only the load distribution of electric power increases in the vertical direction, but also the load capacity is very large, and many publicly important electric facilities are included.
【０００３】このため、電源の信頼性や安全性の向上が
強く要求されている。さらに、これらの設備場所は都市
の密集地域にあることが多く、その据付面積は極力小さ
いことが望まれている。Therefore, improvement in reliability and safety of the power source is strongly demanded. Furthermore, these facilities are often located in densely populated areas of the city, and it is desired that the installation area be as small as possible.
【０００４】このようなビルディングあるいは工場設備
のように１個所に大きな負荷があるところには、供給信
頼度の高いスポットネットワーク受変電システムが最適
といえる。It can be said that the spot network power receiving and transforming system having high supply reliability is suitable for a place where a large load is placed in one place such as a building or factory facility.
【０００５】このスポットネットワーク受変電システム
とは、電源変電所からの複数の電源配電線より２２ｋＶ
または３３ＫＶを有する２〜４のスポットネットワーク
回線で受電し、ネットワーク変圧器の一次側には受電断
路器を設置し、二次側にはネットワーク変圧器毎にプロ
テクタ遮断器を置き、その負荷側をネットワーク母線で
並列に接続し、そのネットワーク母線に接続されたいく
つかのき電線によつて、各方面に負荷を供給するシステ
ムである。This spot network substation system is 22 kV from a plurality of power distribution lines from a power substation.
Or, it receives power from 2 to 4 spot network lines with 33KV, installs a power receiving disconnector on the primary side of the network transformer, and puts a protector breaker on each secondary side of the network transformer and its load side. It is a system that connects in parallel with a network bus and supplies a load to each direction by several feeders connected to the network bus.
【０００６】尚、この種スポットネットワーク受変電シ
ステムに関連するものとしては、特開昭６２−６０９３
７号公報が挙げられる。A system related to this type of spot network power receiving and transforming system is disclosed in JP-A-62-6093.
No. 7 publication is mentioned.
【０００７】このスポットネットワーク受変電システム
では、現在３回線受電が一般的に採用されているが、こ
の３回線受電は、特別高圧のネットワーク変圧器を３台
も必要とするため価格高となること、また変電所の据付
面積も大きくなる嫌いがある。[0007] In this spot network power receiving and transforming system, currently, three-line power receiving is generally adopted. However, this three-line power receiving requires a special high-voltage network transformer as well, which results in high price. Also, there is a dislike that the installation area of the substation will increase.
【０００８】このため、最近においては、図２に示され
ているように、２回線のスポットネットワーク受電設
備、すなわち常用−予備配電線２１Ａ、２１Ｂに対し
て、夫々に受電負荷断路器２２、受電用ヒューズ２３、
変圧器２５および遮断器２６を備え、常用配電線２１Ａ
が停電した場合には、予備配電線２１Ｂ側に切り替える
２回線のスポットネットワーク受電設備が採用されるよ
うになってきている。また常用−予備２回線受電設備の
受電遮断器の代わりにヒューズを用いた簡易２回線受電
設備の需要も多くなってきている。For this reason, recently, as shown in FIG. 2, with respect to the spot network power receiving equipment of two lines, that is, the normal-spare distribution lines 21A and 21B, the power receiving load disconnecting switch 22 and the power receiving are respectively provided. Fuse 23,
A common distribution line 21A including a transformer 25 and a circuit breaker 26
In the event of a power outage, a two-line spot network power receiving facility that switches to the side of the standby distribution line 21B is being adopted. Further, there is an increasing demand for a simple 2-line power receiving facility using a fuse instead of the power receiving breaker of the normal-spare 2-line power receiving facility.
【０００９】[0009]
【発明が解決しようとする課題】しかし、この２回線の
スポットネットワーク受電設備においては、電源側の配
電線が１回線停電した場合には、全停電にはならないも
のの、変圧器の１台分が配電不能となり、負荷の条件に
よっては負荷制限が必要となる嫌いがある。However, in this two-line spot network power receiving facility, if one line of the distribution line on the power supply side has a power outage, the total power outage does not occur, but one transformer is enough. There is a dislike that it becomes impossible to distribute electricity and that load limitation is required depending on the load conditions.
【００１０】また、簡易２回線受電設備では、常用回線
側が停電すると、一時的に設備が全停電となる。勿論、
受電負荷断路器を予備線側に切り換え後、再び負荷への
電源供給が可能となるが、何れの設備でも１回線停電時
には、負荷に対して何らかの支障は生じることになる。Further, in the simple two-line power receiving facility, if the service line side has a power failure, the facility temporarily loses all power. Of course,
After switching the power receiving load disconnector to the protection line side, power can be supplied to the load again, but any facility will cause some trouble to the load when there is a one-line power failure.
【００１１】本発明はこれに鑑みなされたもので、その
目的とするところは、安価にして、電源側配電線の１回
線が停電しても、負荷に対して設備の一時的停電や負荷
制限等の支障を与えることなく運転が可能なこの種スポ
ットネットワーク受変電システムを提供するにある。The present invention has been made in view of the above circumstances, and an object thereof is to reduce the cost, and even if one line of the power supply side distribution line has a power failure, a temporary power failure or load limitation of the equipment with respect to the load. The purpose is to provide this kind of spot network power receiving and transforming system that can be operated without any trouble.
【００１２】[0012]
【課題を解決するための手段】すなわち本発明は、ネッ
トワーク設備を、２組準備するとともに、このネットワ
ーク設備に、夫々２台の受電断路器と２台の受電電圧検
出器を設け、この２台目の受電断路器を、３回線目の電
源側ネットワーク配電線に接続してこれを予備線とし、
電源側ネットワーク配電線の１回線路が停電した時に、
受電電圧検出器で検出して受電断路器を予備線側に切り
換えるようになし所期の目的を達成するようにしたもの
である。That is, according to the present invention, two sets of network equipment are prepared, and each of the network equipment is provided with two power receiving disconnecting switches and two power receiving voltage detectors. Connect the power receiving disconnector of the eye to the power supply side network distribution line of the third line, and use this as the backup line,
When one circuit line of the power supply side network distribution line fails,
The power receiving voltage detector detects the voltage and switches the power receiving disconnecting switch to the protection line side to achieve the intended purpose.
【００１３】[0013]
【作用】すなわちこのように形成されたスポットネット
ワーク受変電システムであると、停電した場合、１組側
のネットワーク設備の遮断器は遮断されるが、２組側の
ネットワーク設備により給電が行われ、その間に１組側
のネットワーク設備は予備線側に切り替えられ、２回線
とも稼働状態となる。In other words, in the spot network power receiving and transforming system thus formed, when there is a power failure, the breaker of the network equipment on the one side is cut off, but the power is supplied by the network equipment on the two side. Meanwhile, the network equipment on one side is switched to the protection line side, and both lines are in operation.
【００１４】これにより、２組側のネットワーク設備の
変圧器が短時間過負荷状態となるだけで、負荷設備には
何等支障無く設備の運転を継続することが可能となり、
したがって電源側配電線の１回線が停電しても、負荷に
対して設備の一時的停電や負荷制限等の支障を与えるこ
とはないのである。As a result, the transformers of the two sets of network equipment can be in an overloaded state for a short time, and the operation of the equipment can be continued without any trouble in the load equipment.
Therefore, even if one line of the power supply side distribution line fails, the load will not be hindered by a temporary power outage or load limitation.
【００１５】[0015]
【実施例】以下、図示した実施例に基づいて本発明を詳
細に説明する。図１には、スポットネットワーク設備２
Ａおよび２Ｂを備えたスポットネットワーク受変電シス
テムが線図（単線接続図）で示されている。The present invention will be described in detail below with reference to the illustrated embodiments. FIG. 1 shows a spot network facility 2
A spot network substation system with A and 2B is shown in a diagram (single line diagram).
【００１６】スポットネットワーク受変電システムは、
電源側ネットワーク配電線１Ａ、１Ｂおよび１Ｃに、ス
ポットネットワーク設備２Ａ、２Ｂが接続されて電源を
受電し、そしてこれをネットワーク母線１２へ接続して
各負荷設備へ配電する。The spot network power receiving and transforming system is
The spot network equipments 2A, 2B are connected to the power supply side network distribution lines 1A, 1B and 1C to receive power, and are connected to the network bus 12 for distribution to each load equipment.
【００１７】尚、ここでは、ネットワーク設備２Ａは、
電源側ネットワーク配電線１Ａと１Ｃへ、ネットワーク
設備２Ｂは配電線１Ｂと１Ｃへ接続され、電源側ネット
ワーク配電線１Ａ、１Ｂを本線とし、電源側ネットワー
ク配電線１Ｃを予備線として説明する。In this case, the network equipment 2A is
The power supply side network distribution lines 1A and 1C are connected, and the network equipment 2B is connected to the distribution lines 1B and 1C. The power supply side network distribution lines 1A and 1B are main lines, and the power supply side network distribution line 1C is a spare line.
【００１８】ネットワーク設備２Ａ、２Ｂは、２台の受
電断路器３Ａ、３Ｂ、ネットワーク変圧器４、プロテク
タヒューズ５、プロテクタ遮断器６の主回路機器で構成
され、電源をネットワーク母線１２へ供給する。The network equipments 2A and 2B are composed of two main power receiving and disconnecting switches 3A and 3B, a network transformer 4, a protector fuse 5 and a protector breaker 6, and supply power to the network bus 12.
【００１９】プロテクタ遮断器６の一次、二次側には、
電圧検出器９Ａ、９Ｂ、例えば計器用変圧器と、電流検
出器８、例えば計器用変流器が接続されており、これら
の出力はネットワーク継電器１０に接続されている。On the primary and secondary sides of the protector circuit breaker 6,
The voltage detectors 9A, 9B, for example an instrument transformer, and the current detector 8, for example an instrument current transformer, are connected and their outputs are connected to the network relay 10.
【００２０】このネットワーク継電器１０は、主に逆電
力遮断要素と差電圧投入要素を備えている。The network relay 10 mainly includes a reverse power cutoff element and a differential voltage input element.
【００２１】逆電力遮断要素とは電流検出器８で検出し
た逆方向電流、すなわちネットワーク母線側からネット
ワーク変圧器側へ流れる電流により動作をするものであ
り、また、差電圧投入要素とは第１の電圧検出器９Ａの
検出電圧が第２の電圧検出器９Ｂの検出電圧より大き
く、且つ位相が進んでいる差電圧投入条件が成立すると
により動作指令を出すものである。The reverse power cutoff element operates by the reverse current detected by the current detector 8, that is, the current flowing from the network bus side to the network transformer side, and the differential voltage closing element is the first. The operation command is issued when the voltage detected by the voltage detector 9A is higher than the voltage detected by the second voltage detector 9B and the condition for advancing the phase difference is satisfied.
【００２２】これらの要素と回路は操作回路を通じてプ
ロテクタ遮断器６に接続され、これを自動的に投入、遮
断する。These elements and circuits are connected to the protector breaker 6 through an operating circuit, and automatically turn on and off the protector breaker 6.
【００２３】また、受電断路器３Ａ、３Ｂの一次側には
受電電圧検出器７Ａ、７Ｂが接続され、これにより電源
側配電線の充電状態が監視される。さらに、これらの出
力側は制御回路１１に接続され、受電状態の情報をもと
に受電断路器３Ａ、３Ｂ、プロテクタ遮断器６に制御指
令を出力し、受電回線の自動切り換えを実施することが
できる。Further, power receiving voltage detectors 7A and 7B are connected to the primary sides of the power receiving disconnecting switches 3A and 3B, whereby the charging state of the power source side distribution line is monitored. Further, these output sides are connected to the control circuit 11, and control commands are output to the power receiving disconnecting switches 3A, 3B and the protector circuit breaker 6 based on the information on the power receiving state, so that the power receiving line can be automatically switched. it can.
【００２４】また、制御回路１１には差電圧投入ロック
回路が設けられ、復電時にプロテクタ遮断器６が一時的
に開放しても、断路器３Ａ、３Ｂの切り換えが終了する
までは再投入しないように形成されている。Further, the control circuit 11 is provided with a differential voltage closing lock circuit, and even if the protector breaker 6 is temporarily opened at the time of power recovery, it will not be closed again until the switching of the disconnecting switches 3A, 3B is completed. Is formed.
【００２５】このように形成されたスポットネットワー
ク受変電システムであると、例えば、ネットワーク設備
２Ａ、２Ｂが各々電源側配電線１Ａ、１Ｂから受電して
いる状態において、何らかの理由で電源側配電線１Ａが
停電した場合、配電線１Ｂからネットワーク設備２Ｂ、
ネットワーク母線１２を通じてネットワーク設備２Ａへ
電流が流れ込み、逆電力を生ずる。In the spot network power receiving and transforming system thus formed, for example, in a state where the network equipments 2A and 2B are receiving power from the power source side distribution lines 1A and 1B, the power source side distribution line 1A for some reason. If there is a power outage, the distribution line 1B to the network equipment 2B,
Current flows into the network equipment 2A through the network bus 12 to generate reverse power.
【００２６】これをネットワーク継電器１０が検出し、
プロテクタ遮断器６を遮断する。また、受電電圧検出器
７Ａは電圧無しを検出し、スポットネットワーク配電線
１Ｃが正常であれば、検出器７Ｂは電圧有りを検出して
いる。The network relay 10 detects this,
The protector circuit breaker 6 is cut off. Further, the power receiving voltage detector 7A detects the absence of voltage, and if the spot network distribution line 1C is normal, the detector 7B detects the presence of voltage.
【００２７】これらの情報をもとに、制御回路１１で
は、（１）検出器７Ａは電圧無し、かつ受電断路器３Ａ
は閉、（２）検出器７Ｂ予備線側は電圧有り、且つ受電
断路器３Ｂは開、（３）プロテクタ遮断器６は開、のア
ンド条件で、受電断路器３Ａに開指令を出力し、次に受
電断路器３Ｂに投入指令を出力する。Based on these information, in the control circuit 11, (1) the detector 7A has no voltage and the power receiving disconnector 3A is present.
Is closed, (2) there is voltage on the spare line side of the detector 7B, the power receiving disconnector 3B is open, and (3) the protector circuit breaker 6 is open, and an open command is output to the power receiving disconnector 3A, Next, a closing command is output to the power receiving disconnector 3B.
【００２８】これにより、ネットワーク設備２Ａはスポ
ットネットワーク配電線１Ｃに接続されて再び受電状態
となり、ネットワーク継電器１０によって差電圧投入条
件が成立すれば（負荷が重く、ネットワーク設備２Ａの
稼働が必要な状態であれば）、プロテクタ遮断器６に投
入指令が出力されて、２回線とも稼働状態となる。As a result, the network equipment 2A is connected to the spot network distribution line 1C to be in the power receiving state again, and if the differential voltage input condition is satisfied by the network relay 10 (the load is heavy, the network equipment 2A needs to be operated). If so, a closing command is output to the protector circuit breaker 6 and both lines are activated.
【００２９】以上により、ネットワーク設備２Ｂのネッ
トワーク変圧器が短時間過負荷状態となるだけで、負荷
設備には支障無く設備の運転を継続することが可能とな
る。また、ネットワーク継電器本来の機能である逆電力
遮断、差電圧投入機能により、プロテクタ遮断器６を遮
断した状態で受電断路器３Ａ、３Ｂを操作するため、受
電断路器は変圧器の励磁電流を開閉する容量を有すれば
よく、従来の簡易２回線受電設備のように負荷断路器を
使用する必要は無いので、安価に構成することができ
る。As described above, the network transformer of the network equipment 2B is only overloaded for a short time, and the operation of the equipment can be continued without any trouble in the load equipment. In addition, since the protector circuit breaker 6 is operated to operate the power receiving disconnectors 3A and 3B by the reverse power interruption and differential voltage applying functions which are the original functions of the network relay, the power receiving disconnector switches the exciting current of the transformer. As long as it has a capacity to operate, it is not necessary to use a load disconnecting switch unlike the conventional simple two-line power receiving equipment, so that the cost can be reduced.
【００３０】更に、上述の状態にて電源側配電線１Ａが
復電した時には、電源側配電線への接続状態を元に戻す
操作が行なわれ、制御回路１１は、（１）受電電圧検出
器７Ａは電圧有り、かつ受電断路器３Ａは開、（２）ネ
ットワーク設備２Ｂは稼働状態…負荷設備の全停電を避
ける為の条件、（（受電電圧検出器７Ａは電圧有り、か
つ受電断路器３Ａは閉、かつプロテクタ遮断器６は
閉）、或いは、（受電電圧検出器７Ｂは電圧有り、かつ
受電断路器３Ｂは閉、かつプロテクタ遮断器６は
閉））、のアンド条件で、先ずプロテクタ遮断器６に開
指令を出力して投入回路をロック（差電圧投入をロッ
ク）し、次に受電断路器３Ｂに開指令を出力し、次に受
電断路器３Ａに投入指令を出力する。Further, when the power supply side distribution line 1A is restored in the above-mentioned state, an operation for restoring the connection state to the power supply side distribution line is performed, and the control circuit 11 causes (1) the received voltage detector. 7A has a voltage and the power receiving disconnector 3A is open, (2) the network equipment 2B is in an operating state ... Conditions for avoiding a total power failure of the load equipment, ((the power receiving voltage detector 7A has a voltage and the power receiving disconnector 3A Is closed and the protector circuit breaker 6 is closed), or (the power receiving voltage detector 7B has voltage, the power receiving disconnecting switch 3B is closed, and the protector circuit breaker 6 is closed)) An opening command is output to the device 6 to lock the closing circuit (locking the difference voltage application), an opening command is then output to the power receiving disconnector 3B, and then a closing command is output to the power receiving disconnector 3A.
【００３１】そして、受電断路器３Ａが投入したことに
より、プロテクタ遮断器６の投入回路のロックを解除す
る。このとき、差電圧投入条件が成立していればプロテ
クタ遮断器は投入されて、設備の受電形態は初期の状態
に復帰する。When the power receiving disconnector 3A is turned on, the lock of the closing circuit of the protector circuit breaker 6 is released. At this time, if the condition for applying the differential voltage is satisfied, the protector circuit breaker is turned on, and the power receiving mode of the equipment returns to the initial state.
【００３２】尚、この場合次のようにすると、電源安定
性の点でさらに良好であろう。In this case, if the following is done, the power supply stability will be further improved.
【００３３】すなわち、一般的に配電線に接続される負
荷が多くなると電流が増大し、電圧降下によって受電点
の電圧は低下する。そこで、この実施例では、受電電圧
検出器７Ａ、７Ｂからの出力を電圧のアナログ値とし、
制御回路１１にはアナログ比較回路を設けて常に両回線
の電圧値を比較し、現在の受電回線よりも、もう一方の
回線の電圧値の方が既定の識域値よりも高いと判断した
ときに、上述と同様の方法で受電回線の切り換えを行
う。That is, generally, when the load connected to the distribution line increases, the current increases and the voltage drop causes the voltage at the power receiving point to decrease. Therefore, in this embodiment, the outputs from the power reception voltage detectors 7A and 7B are analog values of the voltage,
When an analog comparison circuit is provided in the control circuit 11 and the voltage values of both lines are constantly compared, and it is determined that the voltage value of the other line is higher than the predetermined threshold value than the current power receiving line. Then, the power receiving line is switched by the same method as described above.
【００３４】さらに、ポンピング現象や不必要な切り換
えを避けるために、判定値には適正なヒステリシスを持
たせる。Further, in order to avoid a pumping phenomenon and unnecessary switching, the judgment value has proper hysteresis.
【００３５】また、２つのネットワーク設備２Ａ、２Ｂ
が同一配電線に接続されると、その配電線が停電したと
きには負荷設備が全停電となってしまうので、例えばネ
ットワーク設備２Ａにおいて配電線１Ｃへ切り換える条
件が成立した際には、もう一方のネットワーク設備２Ｂ
が配電線１Ｃに接続されていないことを条件として切り
換えを実施するのである。Two network facilities 2A and 2B are also provided.
Is connected to the same distribution line, the load facility will be totally outaged when the distribution line fails. Therefore, for example, when the condition for switching to the distribution line 1C in the network facility 2A is established, the other network Facility 2B
Is switched under the condition that is not connected to the distribution line 1C.
【００３６】これにより、電源側配電線が１回線停電し
ても負荷設備に支障無く運転が継続できるとともに、各
配電線の負荷分担を均等化することができるという利点
がある。As a result, there is an advantage that even if one power line on the power supply side has a power failure, operation can be continued without hindrance to the load equipment and the load distribution of each distribution line can be equalized.
【００３７】[0037]
【効果】以上説明してきたように本発明によれば、電源
側配電線の１回線が停電しても、負荷に対して設備の一
時的停電や負荷制限等の支障を与えることなく運転が可
能なこの種スポットネットワーク受変電システムを得る
ことができる。[Effect] As described above, according to the present invention, even if one line of the power supply side distribution line has a power failure, it is possible to operate without giving a load a trouble such as a temporary power failure of the facility or a load limitation. This kind of spot network power receiving and transforming system can be obtained.
【図１】本発明のスポットネットワーク受変電システム
の単線接続図である。FIG. 1 is a single-line connection diagram of a spot network power receiving and transforming system of the present invention.
【図２】従来のスポットネットワーク受変電システムの
単線接続図である。FIG. 2 is a single-line connection diagram of a conventional spot network power receiving and transforming system.
１Ａ〜Ｃ…電源側ネットワーク配電線、２Ａ〜Ｂ…ネッ
トワーク設備、３Ａ〜Ｂ…受電断路器、４…ネットワー
ク変圧器、５…プロテクタヒューズ、６…プロテクタ遮
断器、７Ａ〜Ｂ…受電電圧検出器、８…電流検出器、９
Ａ〜Ｂ…電圧検出器、１０…ネットワーク継電器、１１
…制御回路、２１…常用ー予備配電線、２２…受電負荷
断路器、２３…受電用ヒューズ、２４…断路器、２５…
変圧器、２６…遮断器。1A-C ... Power supply side network distribution line, 2A-B ... Network equipment, 3A-B ... Power receiving disconnecting switch, 4 ... Network transformer, 5 ... Protector fuse, 6 ... Protector breaker, 7A-B ... Power receiving voltage detector , 8 ... Current detector, 9
AB: voltage detector, 10 ... network relay, 11
... Control circuit, 21 ... Regular-spare distribution line, 22 ... Power receiving load disconnector, 23 ... Power receiving fuse, 24 ... Disconnector, 25 ...
Transformer, 26 ... Circuit breaker.
Claims (6)
ら複数負荷を有するネットワーク母線に、ネットワーク
設備を介して電源を供給するようになしたスポットネッ
トワーク受変電システムおいて、 前記ネットワーク設備を、複数組準備するとともに、そ
れぞれのネットワーク設備は、夫々異なるネットワーク
配電線に接続され、かつ夫々第一、第二の受電断路器を
備え、この第二の受電断路器は、さらに異なる電源側ネ
ットワーク配電線に接続され、前記ネットワーク配電線
の停電時に、前記第一の受電断路器側ネットワーク配電
線より前記第二の受電断路器側ネットワーク配電線に切
り換えるようにしたことを特徴とするスポットネットワ
ーク受変電システム。1. A spot network power receiving and transforming system configured to supply power from a power distribution network line of a plurality of lines to a network bus having a plurality of loads through the network facility, wherein a plurality of sets of the network facility are provided. With the preparation, each network equipment is connected to different network distribution lines, and each has a first and a second power receiving disconnecting switch, and this second power receiving disconnecting switch is connected to a different power supply side network distribution line. A spot network power receiving and transforming system which is connected and is configured to switch from the first power receiving disconnector-side network distribution line to the second power receiving disconnector-side network distribution line when a power failure occurs in the network power distribution line.
ら複数負荷を有するネットワーク母線に、ネットワーク
設備を介して電源を供給するようになしたスポットネッ
トワーク受変電システムおいて、 前記ネットワーク設備を、２組準備するとともに、該ネ
ットワーク設備に、夫々２台の受電断路器と２台の受電
電圧検出器を設け、この２台目の受電断路器を、３回線
目の電源側ネットワーク配電線に接続してこれを予備線
とし、電源側ネットワーク配電線の１回線停電時に、前
記受電電圧検出器で検出して前記受電断路器を前記予備
線に切り換えるようにしたことを特徴とするスポットネ
ットワーク受変電システム。2. A spot network power receiving and transforming system configured to supply power from a network power distribution line on a power supply side of a plurality of lines to a network bus having a plurality of loads through the network equipment, wherein two sets of the network equipment are provided. In addition to the preparation, each of the network equipment is provided with two power receiving disconnecting switches and two power receiving voltage detectors, and the second power receiving disconnecting switch is connected to the power distribution network distribution line of the third line. A spot network power receiving and transforming system, characterized in that this is used as a backup line, and when the power supply side network distribution line has a single line power failure, it is detected by the power receiving voltage detector and the power receiving disconnecting switch is switched to the backup line.
ら複数負荷を有するネットワーク母線に、ネットワーク
設備を介して電源を供給するようになしたスポットネッ
トワーク受変電システムおいて、 前記ネットワーク設備を２組準備するとともに、それぞ
れのネットワーク設備は、夫々異なるネットワーク配電
線に接続され、かつ夫々２台の受電断路器を備え、この
２台目の受電断路器を、さらに異なる電源側ネットワー
ク配電線に接続し、電源側ネットワーク配電線の停電時
に、前記受電電圧検出器で検出して前記受電断路器を前
記２台目の受電断路器側に切り換えるようにしたことを
特徴とするスポットネットワーク受変電システム。3. A spot network power receiving and transforming system in which power is supplied from a power supply side network distribution line of a plurality of lines to a network bus having a plurality of loads through network facilities, and two sets of the network facilities are prepared. At the same time, each network equipment is connected to different network distribution lines, and each has two power receiving disconnecting switches, and this second power receiving disconnecting switch is further connected to different power supply side network distribution lines, A spot network power receiving and transforming system characterized in that, when a power failure occurs on the power supply side network distribution line, the power receiving voltage detector detects and switches the power receiving disconnecting switch to the side of the second power receiving disconnecting switch.
にネットワーク設備のプロテクタ遮断器と受電断路器に
指令を与えて本線へ切り換える制御回路を備えてなる請
求項１、２又は３記載のスポットネットワーク受変電シ
ステム。4. The spot network according to claim 1, 2 or 3, wherein the network equipment is provided with a control circuit for giving a command to a protector breaker and a power receiving disconnector of the network equipment to switch to the main line when power is restored to the main line. Substation system.
ら複数負荷を有するネットワーク母線に、ネットワーク
設備を介して電源を供給するようになしたスポットネッ
トワーク受変電システムおいて、 前記ネットワーク設備を、複数組準備するとともに、そ
れぞれのネットワーク設備は、夫々異なるネットワーク
配電線に接続され、かつ夫々第一、第二の受電断路器を
備え、この第二の受電断路器は、さらに異なる電源側ネ
ットワーク配電線に接続され、前記ネットワーク配電線
の電圧異常時に、前記第一の受電断路器側ネットワーク
配電線より前記第二の受電断路器側ネットワーク配電線
に切り換えるようにしたことを特徴とするスポットネッ
トワーク受変電システム。5. A spot network power receiving and transforming system configured to supply power from a power supply side network distribution line of a plurality of lines to a network bus having a plurality of loads through the network facility, wherein a plurality of sets of the network facility are provided. With the preparation, each network equipment is connected to a different network distribution line, and is equipped with a first and a second power receiving disconnecting switch, respectively, and this second power receiving disconnecting switch is connected to a different power supply side network distribution line. The spot network power receiving and transforming system is characterized in that, when the voltage of the network distribution line is abnormal, the network distribution line is switched from the first power receiving disconnector side network distribution line to the second power receiving disconnector side network distribution line. .
ら複数負荷を有するネットワーク母線に、ネットワーク
設備を介して電源を供給するようになしたスポットネッ
トワーク受変電システムおいて、 前記ネットワーク設備が複数組準備され、かつそれぞれ
のネットワーク設備は、夫々異なるネットワーク配電線
に接続されるとともに、夫々、さらに異なる電源側ネッ
トワーク配電線に接続された第二の受電断路器および電
源側ネットワーク配電線の電圧を検出する電圧検出器を
備え、 前記電圧検出器にて、前記複数回線の電源側ネットワー
ク配電線の電圧を検知し、電圧が最も高いネットワーク
配電線側に、前記受電断路器を切り替えるようにしたこ
とを特徴とするスポットネットワーク受変電システム。6. In a spot network power receiving and transforming system configured to supply power from a network distribution line of a power source of a plurality of lines to a network bus having a plurality of loads through the network facility, a plurality of sets of the network facility are prepared. And each network equipment is connected to a different network distribution line, and detects the voltage of the second power receiving disconnecting switch and the power supply side network distribution line respectively connected to different power supply side network distribution lines. A voltage detector is provided, and the voltage detector detects the voltage of the power supply side network distribution line of the plurality of lines, and switches the power receiving disconnector to the network distribution line side having the highest voltage. Spot network power transformation system.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05181260A JP3102535B2 (en) | 1993-07-22 | 1993-07-22 | Spot network substation system |
| TW083106170A TW358251B (en) | 1993-07-22 | 1994-07-06 | A spot-network distribution system and an operation |
| KR1019940017060A KR0185242B1 (en) | 1993-07-22 | 1994-07-15 | Spot network power receiving and transforming apparatus |
| CN94107980A CN1035911C (en) | 1993-07-22 | 1994-07-19 | A spot-network distribution system and a operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05181260A JP3102535B2 (en) | 1993-07-22 | 1993-07-22 | Spot network substation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0739070A true JPH0739070A (en) | 1995-02-07 |
| JP3102535B2 JP3102535B2 (en) | 2000-10-23 |
Family
ID=16097598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05181260A Expired - Fee Related JP3102535B2 (en) | 1993-07-22 | 1993-07-22 | Spot network substation system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3102535B2 (en) |
| KR (1) | KR0185242B1 (en) |
| CN (1) | CN1035911C (en) |
| TW (1) | TW358251B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100419261B1 (en) * | 2001-10-23 | 2004-02-21 | 한국전력공사 | apparatus for protecting ground fault of low voltage bus in spot network system |
| AT504659B1 (en) * | 2006-12-22 | 2008-07-15 | Moeller Gebaeudeautomation Gmb | ELECTRICAL INSTALLATION ARRANGEMENT AND METHOD FOR OPERATING AN ELECTRICAL INSTALLATION ARRANGEMENT |
| CN101755373B (en) * | 2007-07-24 | 2013-11-13 | 西门子公司 | Protective device and method for operating a protective device |
| US8038326B2 (en) | 2010-01-14 | 2011-10-18 | Yuan-Shun Hsu | Ornamental lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2313118A (en) * | 1941-08-09 | 1943-03-09 | Westinghouse Electric & Mfg Co | Electrical protective distribution system |
-
1993
- 1993-07-22 JP JP05181260A patent/JP3102535B2/en not_active Expired - Fee Related
-
1994
- 1994-07-06 TW TW083106170A patent/TW358251B/en active
- 1994-07-15 KR KR1019940017060A patent/KR0185242B1/en not_active IP Right Cessation
- 1994-07-19 CN CN94107980A patent/CN1035911C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW358251B (en) | 1999-05-11 |
| CN1099529A (en) | 1995-03-01 |
| KR0185242B1 (en) | 1999-05-15 |
| JP3102535B2 (en) | 2000-10-23 |
| CN1035911C (en) | 1997-09-17 |
| KR950004674A (en) | 1995-04-18 |
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