JPS63274331A - Automatic interrupting device for co-generation - Google Patents
Automatic interrupting device for co-generationInfo
- Publication number
- JPS63274331A JPS63274331A JP62104389A JP10438987A JPS63274331A JP S63274331 A JPS63274331 A JP S63274331A JP 62104389 A JP62104389 A JP 62104389A JP 10438987 A JP10438987 A JP 10438987A JP S63274331 A JPS63274331 A JP S63274331A
- Authority
- JP
- Japan
- Prior art keywords
- distribution
- generation
- ground
- line
- consumer
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000008054 signal transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、商用配電系統に連系しているコージェネレ
ーシ1ン需要家の連系制御に係るコージェネレーシ舊ン
自動しや断装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic cogeneration system shearing device for interconnection control of cogeneration system customers connected to a commercial power distribution system. It is.
発電機を電力系統と連系するコージェネレーシ曹ン需喪
家は、作業時や火災等の緊急時、あるいは上位系統での
事故時などの場合に、電力会社側の配電しや断器が開放
したときには必らず受電点しゃ断器を開放し、コージェ
ネレーシM/単独で配電系統を運転するのを停止し、線
路にトラプルの発生するのを防止しなければならない。A cogeneration generator that connects a generator to the power grid can be used during work, in an emergency such as a fire, or in the event of an accident in the upper system, when the power company's power distribution switch or disconnector is opened. At times, it is necessary to open the power receiving point breaker and stop the operation of the power distribution system by the cogeneration system M/independently to prevent trouble from occurring on the line.
このため、第3図及び第4図に示すように、変電所の配
電しゃ断器CB52Fとコージェネレーシ冒ン需要家の
′受電点しや断器CB52Rとの間で転送しや断を行な
う自動しゃ断装置10を設置している。For this reason, as shown in Figures 3 and 4, an automatic breaker that transfers and disconnects power between the substation's power distribution breaker CB52F and the cogeneration customer's power receiving point or disconnector CB52R is installed. The device 10 is installed.
第3図は昭和61年11月に日本コージェネレーシ璽ン
研究会(監修、通商産業省−資源エネルギー庁公益事業
部)よシ発行されたコージェネレーシlンの系統連系技
術要件ニガイドライン解説書に示された従来のコージェ
ネレーシ冒ン需要家保護装置構成例を示す系統図である
。図において、TTSは転送しや断信号用の送信継電器
、TTRは受信継電器、0CGRは地絡過電流継電器、
0vGRは地絡過電圧継電器、zCTは零相変流器、z
PDは零相電圧導出器である。尚、0CR−Hは過電流
継電器、DSRは方向短絡継電器、RPRは逆電力継電
器、UVRは不足電圧継電器、UFRは周波数低下継電
器、SGは同期発電機、CBはしや断器、DS89Rは
断路器、また各CTとPTは計器用変流器と計器用変圧
器である。Figure 3 is an explanatory guideline on grid connection technical requirements for cogeneration systems published by the Japan Cogeneration System Stable Study Group (supervised by the Ministry of International Trade and Industry - Agency for Natural Resources and Energy, Public Utilities Department) in November 1986. FIG. 2 is a system diagram showing a configuration example of a conventional cogeneration customer protection device shown in FIG. In the figure, TTS is a transmitting relay for forwarding and disconnection signals, TTR is a receiving relay, 0CGR is a ground fault overcurrent relay,
0vGR is a ground fault overvoltage relay, zCT is a zero-phase current transformer, z
PD is a zero-sequence voltage derivator. In addition, 0CR-H is an overcurrent relay, DSR is a directional short-circuit relay, RPR is a reverse power relay, UVR is an undervoltage relay, UFR is a frequency reduction relay, SG is a synchronous generator, CB edge or disconnector, and DS89R is a disconnector. and each CT and PT are a potential current transformer and a potential transformer.
また第4図の制御回路において、52FT、Cは配電し
ゃ断器CB52Fの引外しコイル、52Faは同しゃ断
器CB52Fのパレットa接点、52RT、Cは受電点
しゃ断器CB52Rの引外しコイル、52RILは同し
や断器CB52Rのバレン)a接点、11は信号伝送用
通信線、Eは信号伝送用電源、そしてRYlaとRY2
aはそれぞれ当該しゃ断器しや断用保護継電器のa接点
である。In the control circuit shown in Fig. 4, 52FT, C is the tripping coil of the distribution breaker CB52F, 52Fa is the pallet a contact of the same breaker CB52F, 52RT, C is the tripping coil of the power receiving point breaker CB52R, and 52RIL is the tripping coil of the power distribution breaker CB52F. Ballen of the breaker CB52R) A contact, 11 is the communication line for signal transmission, E is the power supply for signal transmission, and RYla and RY2
A is the a contact point of the breaker or disconnection protection relay, respectively.
次に、動作について説明する。Next, the operation will be explained.
しや断信号によシミ接点RY1aが閉じられると引外し
コイル52FT、Cが付勢されて配電しや断器CB52
Fがしゃ断するが、同時にしや断信号により送信継電器
TTSが付勢し、その出力接点TTSaによシ通信線1
1を介し需要家側の受信継電器TTRが付勢し、その出
力接点TTRaによシカ外しコイル52RT、Cが付勢
して受電点しゃ断器CB52Rがしゃ断し、コージェネ
レーション需要家の単独運転が防止される。When the stain contact RY1a is closed by the disconnection signal, the tripping coils 52FT and C are energized and the power distribution circuit breaker CB52 is activated.
F is cut off, but at the same time, the transmitting relay TTS is energized by the cutoff signal, and its output contact TTSa is connected to the communication line 1.
1, the receiving relay TTR on the consumer side is energized, and the output contact TTRa is energized to the disconnection coils 52RT and C, which causes the receiving point breaker CB52R to shut off, thereby preventing the cogeneration consumer from operating independently. be done.
従来のコージェネレーション自動しゃ断装置は、以上の
ように構成されているので、信号伝送用通信線の布設な
どの大規模な工事をしなければならず、設置費が嵩むな
どの問題点があった。Conventional cogeneration automatic cutoff devices have the above-mentioned configuration, which requires large-scale construction work such as laying communication lines for signal transmission, leading to problems such as increased installation costs. .
この発明は上記のような問題点を解消するためKなされ
たもので、電力会社と需要家との間に何ら特別の通信線
を布設することなく、需要家の受電点しや断器をしゃ断
させうるコージェネレーション自動しや断装置を得るこ
とを目的とする。This invention was made in order to solve the above-mentioned problems, and it is possible to cut off the power receiving point or disconnection of the customer without installing any special communication line between the power company and the customer. The purpose of the present invention is to obtain an automatic cogeneration sintering device that can be used in a cogeneration system.
この発明に係るコージェネレーション自動しゃ断装置は
、配電変電所の任意の配電線に配電しゃ断器の応動に対
応して、人為的地絡事故を発生させる開閉器を設けると
共に、コージェネレーション需要家の配電系統に上記地
絡事故を検出し、受電点しや断器をしや断させる地絡過
電圧継電器を設置したものである。The cogeneration automatic breaker device according to the present invention provides a switch for generating an artificial ground fault in response to the response of a distribution breaker on any distribution line of a distribution substation, and also provides a power distribution system for cogeneration customers. A ground-fault overvoltage relay is installed in the system to detect the above-mentioned ground-fault fault and immediately disconnect the power receiving point or disconnector.
この発明におけるコージェネレーション自動しゃ断装置
は、配電変電所の配電線中の配電しや断器の応動に対応
させて開閉器によシ人為的な地絡事故を発生させると共
に需要家側ではとの地絡事故を地絡過電圧継電器によっ
て検出し、受電点しや断器をしや断させる。The cogeneration automatic cutoff device according to the present invention generates an artificial ground fault in a switch in response to the response of a power distribution switch or disconnection in a distribution line of a distribution substation, and also prevents the customer side from causing an artificial ground fault. A ground fault is detected by a ground fault overvoltage relay and the power receiving point or disconnector is immediately disconnected.
以下、この発明の一実施例を第1図、第2図について説
明する。第1図(A)の系統図において、0VGRはコ
ージェネレーシ冒ンWi要家に設置されている地絡過電
圧継電器であって、開閉器52FGによシ人為的に発生
された地絡事故を検出し、受電点しや断器52FGをし
や断させる。52FGは同図(B)に示すように電力会
社の配電線の送υ出し口の任意の一線に設置された接地
用の開閉器、VDは配電線の電圧の有無を検出する電圧
検出器である。尚、第3図と同一符号は同一部分を示す
のでそれらの説明は省略する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the system diagram shown in Figure 1 (A), 0VGR is a ground fault overvoltage relay installed at the main building of the cogeneration system, which detects an artificially caused ground fault by switch 52FG. Then, the power receiving point and disconnector 52FG are turned off. As shown in the same figure (B), 52FG is a grounding switch installed on any line at the transmission outlet of the power company's power distribution line, and VD is a voltage detector that detects the presence or absence of voltage on the distribution line. be. Incidentally, the same reference numerals as in FIG. 3 indicate the same parts, so a description thereof will be omitted.
第2図は接地用開閉器52FGの大切の制御回路例を示
したものである。図でCC,!:TCは接地用の開閉器
52FGの閉路用コイルと開路用コイル、52Fbは配
電しゃ断器CB52Fのバレン)b接点、52FbTと
52FGaTは限時継電器、52FbTaと52FGa
Taはこれら限時継電器の限時動作接点、52FbTX
は補助継電器、52FbTXaはそのa接点、VDXは
補助継電器、VDXaとVDXbはそ(7)a接点とb
接点、VDaは電圧検出器VDのa接点、52FGaは
接地開閉器52FGのバレン)a接点である。FIG. 2 shows an example of an important control circuit for the grounding switch 52FG. CC in the figure! : TC is the closing coil and opening coil of the grounding switch 52FG, 52Fb is the ball (b) contact of the power distribution breaker CB52F, 52FbT and 52FGaT are the time-limited relays, 52FbTa and 52FGa
Ta is the time-limited operation contact of these time-limited relays, 52FbTX
is the auxiliary relay, 52FbTXa is its a contact, VDX is the auxiliary relay, VDXa and VDXb are its (7) a contact and b
The contacts, VDa, are the a-contact of the voltage detector VD, and 52FGa is the a-contact of the earthing switch 52FG.
次に動作について説明する。電力系統の事故あるいは計
画的操作によシ配電しゃ断器CB52Fが開放すると、
そのバレン)b接点52Fbが閉路し限時継電器52F
bTを付勢する。この継電器52FbTによシ一定の確
認時間を経過するとそのa接点52FbTa閉路で補助
リレー52FbTXを付勢する。Next, the operation will be explained. If the power distribution circuit breaker CB52F opens due to a power system accident or planned operation,
The ballen) b contact 52Fb is closed and the time-limited relay 52F
Energize bT. When this relay 52FbT passes a certain confirmation time, its a contact 52FbTa is closed to energize the auxiliary relay 52FbTX.
一方、電圧検出器VDは配電線に電圧が有る時に接点V
Daを閉路し、補助継電器VDXを付勢している。On the other hand, voltage detector VD contacts V when there is voltage on the distribution line.
Da is closed and the auxiliary relay VDX is energized.
接地用開閉器52FGの閉路用コイルCCは、a接点5
2FbTXaとVDXaの直列条件によシ付勢されるの
で、配電しや断器CB52Fが開放している時になお配
電線に電圧が有る場合、すなわちコージェネレーシ曹ン
が単独運転状態になった時に閉路し、配′lt線のある
一線を大地に接続し、人為的に一線地絡事故を発生させ
る。The closing coil CC of the grounding switch 52FG is the a contact 5.
Since it is energized by the series condition of 2FbTXa and VDXa, if there is voltage on the distribution line even when the power distribution circuit breaker CB52F is open, in other words, when the cogeneration switch is in an independent operation state, the circuit will be closed. Then, one line with the wiring is connected to the ground, and a one-line ground fault is artificially caused.
コージェネレーションによる単独運転系統に人為的な一
線地絡事故が発生すると、需要家に設置されている零相
電圧導出器ZPDに零相電圧が発生し、これ全地絡過電
圧継電器0VGRで検出し、受電点しゃ断器CB52F
をしや断し、配電系統をコージエネレーシ菌ンによる単
独運転状態から解列する。When an artificial one-line ground fault occurs in an isolated system using cogeneration, a zero-sequence voltage is generated in the zero-sequence voltage derivator ZPD installed at the customer, and this is detected by the all-ground fault overvoltage relay 0VGR. Power receiving point breaker CB52F
The power distribution system is disconnected from the standalone operation state caused by the cordier energy system.
コージェネレーシ璽ン需要家が配電系統から解列すると
、配電線に電圧が無くなシミ圧検出器VDの接点VDa
が開路し、補助継電器VDXの付勢を解き、そのa接点
VDXaは開路、b接点VDXbは閉路する。仁のb接
点VDXbの閉路によシ接地用開閉器52FGの開路用
コイルTCが付勢され、接地用開閉器52FGは開路す
る。When a cogeneration customer disconnects from the distribution system, there is no voltage on the distribution line, and the contact point VDa of the pressure detector VD
is opened, the auxiliary relay VDX is deenergized, its a contact VDXa is opened, and its b contact VDXb is closed. Due to the closing of the third b contact VDXb, the opening coil TC of the grounding switch 52FG is energized, and the grounding switch 52FG is opened.
一方、接地用の開閉器52FGによシ人為的な地絡事故
を発生させてもコージェネレーシ璽ンが解列しない場合
には、限時継電器52FGaTにより 一定の確認時間
が経過後に接点52FGaTa閉で開路用コイルTCを
付勢し、接地開閉器52FGを開路する。そして「コー
ジェネレーション解列失敗」等の警報を発生させ、人為
的に解列させれば良い。On the other hand, if the cogeneration line is not disconnected even if an artificial ground fault occurs with the grounding switch 52FG, the time-limited relay 52FGaT will open the circuit by closing the contact 52FGaTa after a certain period of time has elapsed. energizes the grounding coil TC and opens the grounding switch 52FG. Then, an alarm such as "cogeneration line disconnection failure" may be generated to manually disconnect the line.
以上のように、この発明によれば、電力会社の配電変電
所の配電線に人為的に地絡事故を発生する開閉器を設け
、この地絡事故をコージエネレーシ謬ン需要家に設置さ
れている地絡過電圧継電器で検出して受電点しや断器を
しや断する構成にしたので、変電所とコージェネレーシ
1ン需要家間に特別な通信線を布施する必要がなく、ま
た需要家構内に特別な転送しや断受信装置を設置する必
要もないので装置を安価に構成することができる。As described above, according to the present invention, a switch that artificially causes a ground fault is provided on the distribution line of a power company's distribution substation, and a switch that artificially causes a ground fault is installed at a power company's faulty customer. Since the structure is configured to detect the ground fault with a ground fault overvoltage relay and immediately disconnect the power receiving point or disconnection, there is no need to install a special communication line between the substation and the cogeneration customer. Since there is no need to install a special transmitting or receiving/receiving device in the home premises, the device can be configured at low cost.
また将来複数のコージェネレーシ曹ン需要家が連系する
ことになっても従来のシステムでは各需要家毎に装置を
設置しなければならないが、本発明では、この為の装置
の増設は一切不用であるなどの効果が得られる。Furthermore, even if multiple cogeneration consumers are to be interconnected in the future, in conventional systems, equipment must be installed for each consumer, but with the present invention, there is no need to install additional equipment for this purpose. Effects such as .
第1図(A)はこの発明の一実施例を示す系統図、同図
(B)は接地用開閉器の接続を示す図、第2図はこの発
明のシステムに用いる接地用開閉器の制御回路図、第3
図は従来のコージエネレーシ冒ン自動しや断システムを
示す系統図、第4図は同制御回路図である0
0VGRは地絡過電圧継電器、52FGは接地用開閉器
、VDは電圧検出器、CB52Fは配電しや断器、CB
52Rは受電点しゃ断器。
なお、図中、同一符号は同一または相自部分を示す。Fig. 1 (A) is a system diagram showing an embodiment of the present invention, Fig. 1 (B) is a diagram showing the connection of a grounding switch, and Fig. 2 is a control diagram of the grounding switch used in the system of this invention. Circuit diagram, 3rd
The figure is a system diagram showing a conventional automatic power cut-off system for cozi energy, and Figure 4 is a control circuit diagram of the same. 00VGR is a ground fault overvoltage relay, 52FG is a grounding switch, VD is a voltage detector, CB52F is a power distribution switch, CB
52R is the power receiving point breaker. In addition, in the figures, the same reference numerals indicate the same or similar parts.
Claims (1)
応動に対応して、人為的地絡事故を発生させる接地用の
開閉器と、上記配電線に連系しているコージェネレーシ
ョン需要家の配電系統に設けられ、上記地絡事故を検出
し、受電点しゃ断器をしゃ断させる地絡過電圧継電器と
を備えたコージェネレーション自動しゃ断装置。A grounding switch that is installed on any distribution line in a distribution substation and generates an artificial ground fault in response to the response of a distribution breaker, and a cogeneration customer connected to the above distribution line. A cogeneration automatic cutoff device that is installed in a power distribution system and includes a ground fault overvoltage relay that detects the ground fault and cuts off a power receiving point breaker.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62104389A JPS63274331A (en) | 1987-04-30 | 1987-04-30 | Automatic interrupting device for co-generation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62104389A JPS63274331A (en) | 1987-04-30 | 1987-04-30 | Automatic interrupting device for co-generation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63274331A true JPS63274331A (en) | 1988-11-11 |
Family
ID=14379390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62104389A Pending JPS63274331A (en) | 1987-04-30 | 1987-04-30 | Automatic interrupting device for co-generation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63274331A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2194628A1 (en) * | 2008-12-02 | 2010-06-09 | Ormazabal Protection & Automation, S.L. | Fault protection system for a network area of a high voltage distribution network |
-
1987
- 1987-04-30 JP JP62104389A patent/JPS63274331A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2194628A1 (en) * | 2008-12-02 | 2010-06-09 | Ormazabal Protection & Automation, S.L. | Fault protection system for a network area of a high voltage distribution network |
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