JPH08251841A - Emergency power interconnecting apparatus for atomic power station - Google Patents
Emergency power interconnecting apparatus for atomic power stationInfo
- Publication number
- JPH08251841A JPH08251841A JP8024050A JP2405096A JPH08251841A JP H08251841 A JPH08251841 A JP H08251841A JP 8024050 A JP8024050 A JP 8024050A JP 2405096 A JP2405096 A JP 2405096A JP H08251841 A JPH08251841 A JP H08251841A
- Authority
- JP
- Japan
- Prior art keywords
- emergency
- power
- bus
- power supply
- power plant
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は原子力発電プラント
に係り、特に、隣接する地域に別の原子力発電所が存在
する場合の外部電源喪失時の非常用電源の確保に好適な
原子力発電所の非常用電源融通装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nuclear power plant, and more particularly to a nuclear power plant which is suitable for securing an emergency power source when an external power source is lost when another nuclear power plant exists in an adjacent area. Power supply accommodation device.
【０００２】[0002]
【従来の技術】原子力発電所の非常用電源の電源母線
（以下、非常用母線という。）は、基本的に、各プラン
ト毎かつ非常用電源毎に独立に設けられている。図６
は、２基の原子炉を有する原子力発電プラントの所内電
源単線接続図である。一方の原子炉側の発電機を４ａ、
他方の原子炉側の発電機を４ｂとする。各発電機４ａ，
４ｂの出力は、各々遮断器３ａ，３ｂを介して送電線１
に接続されており、各送電線１は、開閉所母線２にて相
互に接続されている。各発電所の所内電源としては、原
子炉の通常運転時には当該所内の発電機から得るように
なっており、発電機４ａ，４ｂの出力は、所内変圧器７
ａ，７ｂ、受電遮断器８ａ，８ｂを介して、各所内の常
用母線１０ａ，１０ｂに接続されている。常用母線１０
ａ，１０ｂは、各発電所内において各系統毎に設けら
れ、このため受電遮断器８ａ，８ｂも夫々各系統毎に設
けられている。又、各常用母線１０ａ，１０ｂは、各系
統毎に常用／非常用母線連絡遮断器１２ａ，１２ｂと非
常用母線受電遮断器１４ａ，１４ｂを介して夫々非常用
母線１６ａ，１６ｂに接続され、この非常用母線１６
ａ，１６ｂに、夫々受電遮断器１７ａ，１７ｂを介して
非常用電源であるディーゼル発電機２０ａ，２０ｂが接
続されている。この非常用のディーゼル発電機２０ａ，
２０ｂは夫々の発電プラントにおいて複数、通常は３台
（図６には２台づつ図示）設けられている。更に、図６
に示す電源系統には、送電線１に起動変圧器給電遮断器
５を介して起動変圧器６が接続され、該起動変圧器６の
出力は起動変圧器受電遮断器９を介して共通母線１１に
接続され、この共通母線１１が各プラントの各常用母線
１０ａ，１０ｂに夫々共通／常用母線連絡遮断１５ａ，
１５ｂを介して接続されている。2. Description of the Related Art A power source bus of an emergency power source of a nuclear power plant (hereinafter referred to as an emergency bus) is basically provided independently for each plant and each emergency power source. Figure 6
[Fig. 3] is a single-source connection diagram of a power source of a nuclear power plant having two nuclear reactors. One reactor side generator 4a,
The generator on the other reactor side is designated as 4b. Each generator 4a,
The output of 4b is transmitted to the transmission line 1 via the circuit breakers 3a and 3b, respectively.
The transmission lines 1 are connected to each other at the switching station busbar 2. The power source of each power station is obtained from the power generators in the power station during normal operation of the nuclear reactor.
a, 7b and power receiving circuit breakers 8a, 8b are connected to the regular busbars 10a, 10b in each place. Bus 10
a and 10b are provided for each system in each power plant, and therefore the power receiving circuit breakers 8a and 8b are also provided for each system. Further, the service buses 10a and 10b are connected to service buses 16a and 16b via service / emergency bus connecting circuit breakers 12a and 12b and emergency bus power receiving circuit breakers 14a and 14b, respectively. Emergency bus 16
Diesel generators 20a and 20b, which are emergency power sources, are connected to a and 16b via power receiving circuit breakers 17a and 17b, respectively. This emergency diesel generator 20a,
A plurality of 20 b are provided in each power plant, usually three (20 b is shown in FIG. 6). Furthermore, FIG.
In the power supply system shown in FIG. 1, a starting transformer 6 is connected to the power transmission line 1 via a starting transformer power supply breaker 5, and the output of the starting transformer 6 is connected to a common bus 11 via a starting transformer power receiving breaker 9. This common busbar 11 is connected to each common busbar 10a, 10b of each plant to connect / disconnect the common / common busbar 15a, respectively.
It is connected via 15b.
【０００３】原子力発電所が通常に運転している最中
は、発電機４ａ，４ｂの電力の一部を、所内変圧器７
ａ，７ｂ、受電遮断器８ａ，８ｂ、常用母線１０ａ，１
０ｂ、常用／非常用母線連絡遮断器１２ａ，１２ｂ、非
常用母線受電遮断器１４ａ，１４ｂを介して、非常用母
線１６ａ，１６ｂが受電し（各遮断器が閉成状態とな
る。）、この非常用母線１６ａ，１６ｂに接続されてい
る図示しない各種の機器例えば原子炉水位を一定に保つ
系の機器が動作している。原子力発電所を起動する場合
には、送電線１からの電力が、起動変圧器給電遮断器
５、起動変圧器６、起動変圧器受電遮断器９、共通母線
１１、共通／常用母線連絡遮断器１５を介して常用母線
１０ａ，１０ｂに供給され、非常用母線１６ａ，１６ｂ
には、この常用母線１０ａ，１０ｂの電力が、遮断器１
２ａ，１４ａを介して供給される。During the normal operation of the nuclear power plant, a part of the electric power of the generators 4a and 4b is supplied to the on-site transformer 7.
a, 7b, power receiving circuit breakers 8a, 8b, regular busbars 10a, 1
0b, the normal / emergency busbar communication circuit breakers 12a, 12b, and the emergency busbar power receiving circuit breakers 14a, 14b receive power from the emergency busbars 16a, 16b (each circuit breaker is closed). Various devices (not shown) connected to the emergency buses 16a and 16b, for example, devices of a system that keeps the reactor water level constant are operating. When starting a nuclear power plant, the electric power from the power transmission line 1 is used as a starting transformer power supply breaker 5, a starting transformer 6, a starting transformer power receiving breaker 9, a common busbar 11, a common / common busbar breaker. It is supplied to the regular busbars 10a, 10b via 15 and the emergency busbars 16a, 16b.
The power of the service buses 10a and 10b is supplied to the circuit breaker 1
It is supplied via 2a and 14a.
【０００４】今ここで、発電機４ａがトリップするとい
う事態が生じ、しかもこのとき送電線１の事故が重なっ
たとすると（以下、この状態を外部電源喪失時とい
う。）、非常用母線１６ａへの電力供給が遮断される。
しかし、非常用母線１６ａに接続される機器は、斯かる
状態においても動作を確保する必要がある。そこで、外
部電源喪失時を検知したときは、図６の場合には２台の
非常用ディーゼル発電機２０ａが自動起動すると共にデ
ィーゼル受電遮断器１７ａが自動的に閉じて、各ディー
ゼル発電機２０ａの発電電力が夫々各自の系の非常用母
線１６ａに供給される。尚、外部電源喪失時に非常用母
線１６ａと常用母線１０ａとを連絡する遮断器１４ａは
自動的に遮断されている。If a situation occurs in which the generator 4a trips now, and at the same time there are multiple accidents on the power transmission line 1 (hereinafter, this state is referred to as when external power is lost), the emergency bus 16a is sent. The power supply is cut off.
However, the device connected to the emergency bus 16a needs to ensure the operation even in such a state. Therefore, when the loss of the external power source is detected, in the case of FIG. 6, the two emergency diesel generators 20a are automatically started and the diesel power receiving circuit breaker 17a is automatically closed, so that each diesel generator 20a The generated electric power is supplied to the emergency bus 16a of each system. The circuit breaker 14a that connects the emergency bus 16a and the regular bus 10a when the external power source is lost is automatically shut off.
【０００５】尚、従来技術に関連するものとして、例え
ば特開昭６２−２２８９９７号等がある。Note that, for example, JP-A-62-228997 is related to the prior art.
【０００６】[0006]
【発明が解決しようとする課題】上述した原子力発電所
の構成で、外部電源喪失時に非常用ディーゼル発電機の
起動に失敗した場合、当該非常用ディーゼル発電機の電
源母線１６ａは停電に到り、該母線１６ａに接続された
機器への電力供給はストップしてしまう。原子力発電所
は安全の上にも安全を図る構成にすることが望ましい
が、原子炉の寿命中に数度あるか否かという非常事態の
ために１００トン前後ある大形の非常用ディーゼル発電
機を各非常用ディーゼル発電機のバックアップ用に用意
しておくことはスペース的にもコスト的にも無駄になっ
てしまう。しかし、安全対策上、めったに起こらない事
故に対してもそれに対する対策を講じておくことは必要
である。In the above nuclear power plant configuration, when the emergency diesel generator fails to start when the external power source is lost, the power supply busbar 16a of the emergency diesel generator reaches a power failure, The power supply to the equipment connected to the bus bar 16a is stopped. It is desirable that the nuclear power plant has a safety structure, but it is a large-scale emergency diesel generator of about 100 tons due to an emergency situation such as whether or not there are several times during the life of the reactor. It would be a waste of space and cost to prepare each as a backup for each emergency diesel generator. However, as a safety measure, it is necessary to take measures against accidents that rarely occur.
【０００７】この対策のために、隣接する原子力発電所
の同様の非常用ディーゼル発電機をバックアップ用とし
て待機させる構成にすることが考えられる。図６の電源
系統図を見ると、隣接する原子力発電所の非常用ディー
ゼル発電機２０ｂの出力は、各種の遮断器や常用母線を
介して、非常用ディーゼル発電機２０ａの電源母線１６
ａに接続することが可能である。しかし、この接続経路
を介し、電力を必要とする非常用母線に他の原子力発電
所の非常用ディーゼル発電機から電力を供給することは
原理的にはできるが、次の様な問題がある。つまり、各
種の遮断器は、通常運転時その他の場合のために各種の
インターロック条件を定めてあり、この条件を組み変え
て新たにインターロック条件を定める必要がある。又、
上述した外部電源喪失が生起するのは、大地震等が起き
たときが想定されるが、斯かる事態が生じたときに、常
用母線１０や共通母線１１を経路として非常用の電力を
供給するのは安全対策上あまり意味がない。何故なら
ば、常用母線や共通母線を収納するタービン建屋の構造
は、耐震設計等の安全設備として通常の建築基準の何倍
もの対策が施された原子炉建屋に比べると相対的に弱い
からである。As a countermeasure for this, it is conceivable that a similar emergency diesel generator of an adjacent nuclear power plant is made to stand by for backup. Looking at the power supply system diagram of FIG. 6, the output of the emergency diesel generator 20b of the adjacent nuclear power plant is the power supply busbar 16 of the emergency diesel generator 20a via various circuit breakers and service busbars.
It is possible to connect to a. However, although it is possible in principle to supply electric power from an emergency diesel generator of another nuclear power plant to an emergency bus that requires electric power via this connection path, there are the following problems. That is, various circuit breakers have various interlock conditions defined for normal operation and other cases, and it is necessary to combine these conditions to newly define interlock conditions. or,
The loss of the external power source described above may occur when a large earthquake or the like occurs. When such a situation occurs, emergency power is supplied through the service bus 10 or the common bus 11 as a route. Does not make much sense as a safety measure. This is because the structure of the turbine building that houses the regular bus and the common bus is relatively weak compared to the reactor building that has many times the measures taken against normal building standards as safety equipment such as seismic design. is there.
【０００８】本発明の目的は、従来からのインターロッ
ク条件を変えることなく、しかもタービン建屋を介する
ことなく、隣接する原子力発電所の非常用の電力をバッ
クアップ用として用いることのできる原子力発電所の非
常用電源融通装置を提供することにある。An object of the present invention is to provide a nuclear power plant that can use the emergency power of an adjacent nuclear power plant as a backup without changing the conventional interlock conditions and without using a turbine building. An object is to provide an emergency power supply accommodation device.
【０００９】[0009]
【課題を解決するための手段】上記目的は、複数の発電
ユニットを備えた原子力発電所において、各発電ユニッ
トに設置した非常用のディーゼル発電設備が接続された
非常用母線に接続した融通遮断器と、これらと接続して
前記非常用母線相互を連通する融通用母線からなる非常
用電源融通盤を設けることで、達成される。In a nuclear power plant equipped with a plurality of power generation units, the above object is to provide an interchange breaker connected to an emergency busbar to which emergency diesel power generation equipment installed in each power generation unit is connected. And an emergency power interchange board, which is connected to the emergency busbars and connects the emergency busbars to communicate with each other.
【００１０】通常のインターロック条件は、図６を例に
説明すると、送電線側から非常用母線側への電力の流れ
を考えて定められており、その逆つまり非常用母線側か
ら送電線側に電力が供給されることは想定していない。
このため、常用母線や共通母線を介して隣の原子力発電
所の非常用電源の電力を取り込む構成にするためには、
電力を送る側での電力の流れが非常用母線側から常用母
線方向となるため、前述した様にインターロック条件を
変更しなければならない。Referring to FIG. 6 as an example, the normal interlock condition is determined in consideration of the flow of electric power from the transmission line side to the emergency bus side, and vice versa, that is, from the emergency bus side to the transmission line side. It is not assumed that electricity will be supplied to.
For this reason, in order to take in the power of the emergency power source of the adjacent nuclear power plant via the regular bus and the common bus,
Since the power flow on the power transmitting side is from the emergency bus side to the regular bus direction, the interlock condition must be changed as described above.
【００１１】しかし、本発明では、非常用母線間を融通
用母線にて接続するので、インターロック条件を変更す
る必要がない。又、融通用母線は直接原子力発電所間を
接続するので、また融通遮断器は原子炉建屋の制御盤に
設けることができるので、安全基準が極めて高い建造物
だけを利用することが可能となり、非常時の安全対策と
して十分となる。However, in the present invention, since the emergency buses are connected by the interchange bus, it is not necessary to change the interlock condition. Also, since the interchange busbar connects the nuclear power plants directly, and because the interchange breaker can be installed in the control panel of the reactor building, it becomes possible to use only buildings with extremely high safety standards, Sufficient as an emergency safety measure.
【００１２】[0012]
【発明の実施の形態】以下、本発明の一実施例を図面を
参照して説明する。図１は、本発明の一実施例に係る原
子力発電プラントの所内電源単線接続図であり、図６と
同一部分には同一符号を付してその説明を省略する。本
発明実施例に係る発電プラントでは、各原子力発電所の
各系統の非常用母線１６ａを、隣接する原子力発電所の
各系統の非常用母線１６ｂと、連絡回路（融通用母線）
１９にて系統毎に直接接続し、各連絡回路１９の途中に
は、母線連絡遮断器（融通遮断器）１８ａ，１８ｂを設
け、該遮断器１８ａ，１８ｂを開閉することで、該当す
る連絡回路１９の解放，接続を行うようになっている。
この遮断器１８ａ，１８ｂは各原子力発電所の非常用電
源制御盤（非常用電源融通盤）に取り付けられており、
本実施例では手動にて開閉するようになっている。尚、
これを自動にて開閉するようにすることも可能である。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a single-line connection diagram of an internal power source of a nuclear power plant according to an embodiment of the present invention. The same parts as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. In the power plant according to the embodiment of the present invention, the emergency bus bar 16a of each system of each nuclear power plant is connected to the emergency bus bar 16b of each system of the adjacent nuclear power plant and a communication circuit (accommodation bus bar).
By directly connecting each system at 19, connecting bus circuit breakers (accommodation breakers) 18a and 18b in the middle of each communication circuit 19, and opening and closing the circuit breakers 18a and 18b, the corresponding communication circuit 19 are released and connected.
The circuit breakers 18a and 18b are attached to an emergency power control panel (emergency power interchange board) of each nuclear power plant,
In this embodiment, the opening / closing is performed manually. still,
It is also possible to open and close this automatically.
【００１３】図２は、図１に示す連絡回路回りの詳細構
成図である。左側の原子力発電所用として受電遮断器１
４ａを介し図示しない常用母線１０ａ（図１）に接続さ
れた非常用母線１６ａと、右側の原子力発電所用として
受電遮断器１４ｂを介し図示しない常用母線１０ｂ（図
１）に接続された非常用母線１６ｂとは、母線遮断器１
８ａ，１８ｂ及び連絡回路１９を介して直接接続されて
いる。非常用母線１６ａの電圧は、電圧変成器３６ａを
介して不足電圧継電器３７ａ，電圧計３８ａに入力され
ており、該電圧が所定値に達しないときは不足電圧継電
器３７ａが動作しアナンツェータ（ＡＮＮ）３９ａが動
作する。又、非常用母線１６ａには、受電遮断器１７ａ
を介して非常用電源としてのディーゼル発電機２０ａが
接続されており、この発電機２０ａの出力は、電圧変成
器２９ａを介して電圧継電器４１ａ，電圧計３０，周波
数計３１ａに入力されるようになっている。右側の非常
用母線１６ｂでも同様の構成になっており、上述した左
側の構成と同一構成要素には符号“ｂ”を同一数字に付
して説明を省略する。FIG. 2 is a detailed configuration diagram around the communication circuit shown in FIG. Power receiving circuit breaker 1 for the nuclear power plant on the left side
An emergency bus bar 16a connected to an unillustrated regular bus bar 10a (Fig. 1) via 4a, and an emergency bus bar connected to an unillustrated regular bus line 10b (Fig. 1) via a power breaker 14b for the right nuclear power plant. 16b is a busbar circuit breaker 1
It is directly connected via 8a, 18b and a communication circuit 19. The voltage of the emergency bus 16a is input to the undervoltage relay 37a and the voltmeter 38a via the voltage transformer 36a, and when the voltage does not reach the predetermined value, the undervoltage relay 37a operates to operate the ananzeta (ANN). ) 39a operates. In addition, the emergency bus bar 16a has a power receiving circuit breaker 17a.
A diesel generator 20a as an emergency power source is connected via the so that the output of the generator 20a is input to the voltage relay 41a, the voltmeter 30, and the frequency meter 31a via the voltage transformer 29a. Has become. The emergency bus bar 16b on the right side has the same configuration, and the same components as those on the left side described above are designated by the same reference numerals "b" and the description thereof is omitted.
【００１４】通常の運転状態では、遮断器１４ａは閉成
状態、遮断器１７ａは解放状態、遮断器１８ａ，１８ｂ
は解放状態となっている。今、外部電源喪失の事態が左
側の原子力発電所で発生したとする。外部電源喪失にな
ると、非常用母線１６ａの電圧が減少し、所定電圧値を
下回ると、これが電圧変成器３６ａを介して電圧計３８
ａに表示され、運転員はこれを監視していることで、認
識することができる。又、電圧低下により不足電圧継電
器３７ａが動作し、アナンツェータ３９ａが発報するこ
とでも、運転員は斯かる事態の発生を認識することがで
きる。Under normal operating conditions, the circuit breaker 14a is closed, the circuit breaker 17a is open, and the circuit breakers 18a and 18b are closed.
Has been released. Now, suppose that the loss of external power occurred at the nuclear power plant on the left. When the external power supply is lost, the voltage of the emergency bus 16a decreases, and when the voltage falls below a predetermined voltage value, the voltage changes via the voltage transformer 36a to the voltmeter 38.
It is displayed on a and can be recognized by the operator by monitoring it. Also, the undervoltage relay 37a operates due to the voltage drop and the ananzeta 39a issues a warning, so that the operator can recognize the occurrence of such a situation.
【００１５】一方、不足電圧継電器３７ａが動作する
と、図３に示すインターロックが組まれた制御手段が動
作し、遮断器１４ａが遮断つまり解放されて非常用母線
１６ａは常用母線１０ａ側と遮断され、ディーゼル発電
機２０ａが起動される。ディーゼル発電機２０ａの起動
が完了し、その出力が上昇して所定電圧値に達すると、
図４に示すインターロックが組まれた制御手段が動作し
て電圧継電器４１ａが動作し、受電遮断器１７ａが閉成
され、ディーゼル発電機２０ａの発電電力が非常用母線
１６ａに供給される。On the other hand, when the undervoltage relay 37a operates, the interlocking control means shown in FIG. 3 operates, the circuit breaker 14a is cut off or released, and the emergency busbar 16a is cut off from the regular busbar 10a side. , The diesel generator 20a is started. When the start-up of the diesel generator 20a is completed and its output rises to reach a predetermined voltage value,
The interlocking control means shown in FIG. 4 operates to operate the voltage relay 41a, close the power receiving breaker 17a, and supply the generated power of the diesel generator 20a to the emergency bus 16a.
【００１６】ディーゼル発電機２０ａの起動に失敗した
場合には、発電機２０ａの出力電圧は上昇せず、従って
電圧継電器４１ａは動作しない。このため、受電遮断器
１７ａは解放状態のままとなる。又、発電機２０ａの起
動失敗は、電圧計３０，周波数計３１ａを監視している
運転員の知るところとなる。この状態で、遮断器１４ａ
は解放状態、不足電圧継電器３７ａは動作（開）状態の
為、図５に示すインターロックに従うと、運転員が母線
連絡遮断器１８ａ，１８ｂを投入することで、連絡回路
１９が両方の非常用母線１６ａ，１６ｂを電気的に接続
することになる。これにより、非常用母線１６ａには右
側の原子力発電所から電力が供給される。右側の原子力
発電所が正常に動作している場合には、非常用母線１６
ｂには原子炉の発電機４ｂの出力電力が供給されてい
る。又、原子炉が停止しているときには、送電線１側か
ら電力が非常用母線１６ｂに電力が供給されている。も
し、右側の原子力発電所でも外部電源喪失という事態が
発生していれば、非常用電源であるディーゼル発電機２
０ｂが起動しており、非常用母線１６ａにはこのディー
ゼル発電機２０ｂからの電力が供給されることになる。If the diesel generator 20a fails to start, the output voltage of the generator 20a does not rise, and therefore the voltage relay 41a does not operate. Therefore, the power receiving circuit breaker 17a remains in the released state. Further, the failure in starting the generator 20a is known to the operator who monitors the voltmeter 30 and the frequency meter 31a. In this state, the circuit breaker 14a
Is in the open state and the undervoltage relay 37a is in the operating (open) state. Therefore, according to the interlock shown in FIG. 5, the operator turns on the busbar connection breakers 18a and 18b, so that the communication circuit 19 performs both emergency operations. The busbars 16a and 16b are electrically connected. As a result, power is supplied to the emergency bus 16a from the nuclear power plant on the right side. If the nuclear power plant on the right side is operating normally, the emergency bus 16
The output power of the generator 4b of the nuclear reactor is supplied to b. When the nuclear reactor is stopped, electric power is supplied from the power transmission line 1 side to the emergency bus 16b. If there is a loss of external power at the nuclear power plant on the right side, the diesel generator 2
0b is activated, and the emergency bus bar 16a is supplied with power from the diesel generator 20b.
【００１７】[0017]
【発明の効果】本発明によれば、外部電源が喪失し且つ
非常用電源の起動失敗という事態が生じた場合でも、従
来のインターロック回路を変更せずにしかも少ないコス
トにて対処することが可能となり、原子力発電所の安全
性がより向上する。According to the present invention, even when the external power source is lost and the emergency power source fails to start, the conventional interlock circuit can be dealt with without changing the cost. It will be possible and the safety of the nuclear power plant will be improved.
【図１】本発明の一実施例に係る原子力発電プラントの
所内電源単線接続図である。FIG. 1 is a single power source line connection diagram of a nuclear power plant according to an embodiment of the present invention.
【図２】図１に示す連絡回路回りの詳細構成図である。FIG. 2 is a detailed configuration diagram around the communication circuit shown in FIG.
【図３】不足電圧継電器動作による非常用電源自動起動
用のインターロックブロック線図である。FIG. 3 is an interlock block diagram for automatic startup of an emergency power supply due to operation of an undervoltage relay.
【図４】非常用電源起動失敗時の非常用電源受電遮断器
の遮断用インターロックブロック線図である。FIG. 4 is a disconnection interlock block diagram of the emergency power receiving breaker when the emergency power startup fails.
【図５】隣接原子力発電所非常用母線間連絡遮断器用の
インターロックブロック線図である。FIG. 5 is an interlock block diagram for an emergency bus-bar communication breaker of an adjacent nuclear power plant.
【図６】従来の原子力発電所の所内電源単線接続図であ
る。FIG. 6 is a single-wire connection diagram of a conventional nuclear power station in-house power source.
１…送電線、４ａ，４ｂ…原子炉用の発電機、１０ａ，
１０ｂ…常用母線、１４ａ，１４ｂ…非常用母線受電遮
断器、１６ａ，１６ｂ…非常用母線、１７ａ，１７ｂ…
非常用電源受電遮断器、１８ａ，１８ｂ…非常用母線連
絡遮断器、１９…連絡回路、２０ａ，２０ｂ…非常用デ
ィーゼル発電機。1 ... Transmission line, 4a, 4b ... Generator for reactor, 10a,
10b ... Regular busbars, 14a, 14b ... Emergency busbar power receiving circuit breaker, 16a, 16b ... Emergency busbars, 17a, 17b ...
Emergency power receiving breaker, 18a, 18b ... Emergency busbar communication breaker, 19 ... Communication circuit, 20a, 20b ... Emergency diesel generator.
Claims (1)
所において、各発電ユニットに設置した非常用のディー
ゼル発電設備が接続された非常用母線に接続した融通遮
断器と、これらと接続して前記非常用母線相互を連通す
る融通用母線からなる非常用電源融通盤を設けたことを
特徴とする原子力発電所の非常用電源融通装置。1. In a nuclear power plant equipped with a plurality of power generation units, an interchange breaker connected to an emergency busbar connected to an emergency diesel power generation facility installed in each power generation unit, and an interchange breaker connected to these An emergency power interchange device for a nuclear power plant, which is provided with an emergency power interchange board made up of interchange buses that communicate with each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3009676A JP2520514B2 (en) | 1991-01-30 | 1991-01-30 | Emergency power supply facilities and on-site power supply facilities for nuclear power plants |
| JP02405096A JP3167009B2 (en) | 1991-01-30 | 1996-02-09 | Power interchange method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3009676A JP2520514B2 (en) | 1991-01-30 | 1991-01-30 | Emergency power supply facilities and on-site power supply facilities for nuclear power plants |
| JP02405096A JP3167009B2 (en) | 1991-01-30 | 1996-02-09 | Power interchange method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3009676A Division JP2520514B2 (en) | 1991-01-30 | 1991-01-30 | Emergency power supply facilities and on-site power supply facilities for nuclear power plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08251841A true JPH08251841A (en) | 1996-09-27 |
| JP3167009B2 JP3167009B2 (en) | 2001-05-14 |
Family
ID=11726817
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3009676A Expired - Lifetime JP2520514B2 (en) | 1991-01-30 | 1991-01-30 | Emergency power supply facilities and on-site power supply facilities for nuclear power plants |
| JP02405096A Expired - Lifetime JP3167009B2 (en) | 1991-01-30 | 1996-02-09 | Power interchange method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3009676A Expired - Lifetime JP2520514B2 (en) | 1991-01-30 | 1991-01-30 | Emergency power supply facilities and on-site power supply facilities for nuclear power plants |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JP2520514B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012230028A (en) * | 2011-04-27 | 2012-11-22 | Toshiba Corp | Alternative power supply system |
| JP2019506593A (en) * | 2015-12-17 | 2019-03-07 | ニュースケール パワー エルエルシー | Multi-module power plant with dedicated power grid |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5468663B1 (en) * | 2012-10-04 | 2014-04-09 | 中国電力株式会社 | Emergency power supply equipment |
| KR102039683B1 (en) | 2017-09-05 | 2019-11-01 | 한국수력원자력 주식회사 | Dual inserting circuit breaker in power system of power plant |
| CN111596148B (en) * | 2020-04-16 | 2022-08-09 | 岭东核电有限公司 | Test method, device and equipment for starting diesel engine in case of power failure of emergency bus of nuclear power station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0361897A (en) * | 1989-07-31 | 1991-03-18 | Toshiba Corp | Emergency power supply apparatus for atomic power plant |
-
1991
- 1991-01-30 JP JP3009676A patent/JP2520514B2/en not_active Expired - Lifetime
-
1996
- 1996-02-09 JP JP02405096A patent/JP3167009B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012230028A (en) * | 2011-04-27 | 2012-11-22 | Toshiba Corp | Alternative power supply system |
| JP2019506593A (en) * | 2015-12-17 | 2019-03-07 | ニュースケール パワー エルエルシー | Multi-module power plant with dedicated power grid |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520514B2 (en) | 1996-07-31 |
| JPH04253000A (en) | 1992-09-08 |
| JP3167009B2 (en) | 2001-05-14 |
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