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JPH05325737A - Wrong operation preventing device for circuit breaker and disconnector - Google Patents

Wrong operation preventing device for circuit breaker and disconnector

Info

Publication number
JPH05325737A
JPH05325737A JP4136399A JP13639992A JPH05325737A JP H05325737 A JPH05325737 A JP H05325737A JP 4136399 A JP4136399 A JP 4136399A JP 13639992 A JP13639992 A JP 13639992A JP H05325737 A JPH05325737 A JP H05325737A
Authority
JP
Japan
Prior art keywords
substation
unit
data
circuit
disconnector
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
Application number
JP4136399A
Other languages
Japanese (ja)
Other versions
JP3049942B2 (en
Inventor
Yoshihiro Kawasaki
好博 川崎
Kiyoshi Kimura
清志 木村
Toshiro Fujimoto
敏朗 藤本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP4136399A priority Critical patent/JP3049942B2/en
Publication of JPH05325737A publication Critical patent/JPH05325737A/en
Application granted granted Critical
Publication of JP3049942B2 publication Critical patent/JP3049942B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/18Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To automatically judge the operable state of a circuit breaker or disconnector, and surely lock the circuit breaker or disconnector even if a person operates it wrong. CONSTITUTION:Substations O, T, M, K constituting a unit substation system are provided with terminals devices 1O, 1T, 1M, 1K having ratchet units 3 for main detecting units 2, respectively. Each main detecting unit 2 is provided with a sequence circuit for inputting the circuit breaker or disconnector data of its own and other substations and outputting an operation allowance signal, a relay means for the data of the other substations, and a transmitting means of the data of its own substation to the terminal devices of the other substations. Each ratchet unit is formed of a fail-safe circuit for main detecting unit, and outputs a control output of operation allowance according to the logical sum of the outputs of the main detecting unit 2 and the ratchet unit 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ユニット変電所系統に
おける遮断器,断路器誤操作防止装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing erroneous operation of circuit breakers and disconnectors in a unit substation system.

【0002】[0002]

【従来の技術】ユニット変電所のバンク形態には例えば
図10に示すようにバンク形態1〜4がある。図3はこ
のバンク形態3によるユニット変電所の系統図例を示
す。
2. Description of the Related Art Bank types of unit substations include bank types 1 to 4 as shown in FIG. FIG. 3 shows an example of a system diagram of a unit substation according to this bank type 3.

【0003】図3において、各変電所O,T,K,Mの
各遮断器(以下単にCBという),線路断路器又は接地
断路器(以下単に線路LS又は接地LSという)の
「入」,「切」操作をする場合、各変電所のCB,LS
情報を給電情報により入手し、人間が操作の良し悪しを
判断し確認していた。
In FIG. 3, each circuit breaker (hereinafter simply referred to as CB) of each substation O, T, K and M, a line disconnector or a ground disconnector (hereinafter simply referred to as a line LS or a ground LS) is turned on, When performing "off" operation, CB, LS of each substation
Information was obtained from the power supply information, and humans judged and confirmed whether the operation was good or bad.

【0004】[0004]

【表1】 [Table 1]

【0005】表1に人間が判断する内容を示す。判断な
いし確認する内容には次の2つがある。
Table 1 shows the contents judged by humans. There are the following two contents to judge or confirm.

【0006】1.接地されている線路の誤充電(投入)
防止 (1)電源変電所Oの線路LS(O−LS)、Tの線路L
S(T−LS)を「入」操作する場合、最初の線路LS
「開」状態の端子において接地LS(O−E)が投入さ
れていないことを確認する。
1. Incorrect charging (turn-on) of grounded line
Prevention (1) Line LS (O-LS) of power substation O, line L of T
When the S (T-LS) is operated "on", the first line LS
Make sure that the ground LS (O-E) is not turned on at the "open" terminal.

【0007】(2)ユニット変電所Kのバンクの2次CB
(K−01,K−02)、Mのバンクの2次CB(M−
01,M−02)を「入」操作する場合、最初の線路L
S「閉」状態の端子において接地LSが投入されていな
いことを確認する。
(2) Secondary CB of bank of unit substation K
(K-01, K-02), M secondary bank CB (M-
01, M-02), the first line L
S Make sure that the ground LS is not turned on at the "closed" terminal.

【0008】2.LSによる電流開閉の防止 (1)ユニット変電所Kの線路LS(K−L1,K−L
2)、Mの線路LS(M−L1,M−L2)を「入」,
「切」操作する場合、線路バンク1次が充電されていな
いことを確認する。
2. Preventing current switching by LS (1) Unit substation K line LS (K-L1, KL)
2), "on" the M line LS (M-L1, M-L2),
When performing the "off" operation, make sure that the primary railroad bank is not charged.

【0009】(2)ユニット変電所Kのバンク1次LS
(K−L11,K−L21)を「入」,「切」操作する
場合、線路、バンク1次が充電されていないことを確認
する。
(2) Unit substation K bank primary LS
When operating (K-L11, K-L21) "on" and "off", make sure that the line and bank primary are not charged.

【0010】[0010]

【発明が解決しようとする課題】上記1.(1)の接地さ
れている線路の誤充電(投入)防止及び同(2)の線路L
Sによる電流の開,閉防止を人間が判断することは複雑
で時間を要し、誤判断(誤操作)してしまう可能性があ
り、非常に危険である。
[Problems to be Solved by the Invention] Prevention of erroneous charging (closing) of the grounded line of (1) and line L of the same (2)
It is complicated and time-consuming for a human to judge whether the current is prevented from being opened or closed by S, which may cause an erroneous judgment (erroneous operation), which is extremely dangerous.

【0011】本発明は、従来のこのような問題点に鑑み
てなされたものであり、その目的とするところは、遮断
器,断路器の操作可状態を自動的に判断し、万一人間が
遮断器又は断路器を誤操作しても確実にロックしうるよ
うにした遮断器,断路器誤操作防止装置を提供すること
にある。
The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to automatically judge the operable states of the circuit breaker and the disconnecting switch, so that a person It is an object of the present invention to provide a circuit breaker / disconnector erroneous operation preventing device which is capable of reliably locking even if the circuit breaker or disconnector is erroneously operated.

【0012】[0012]

【課題を解決するための手段】上記目的を達成するため
に、本発明における遮断器,断路器誤操作防止装置は、
ユニット変電所系統を構成する各変電所に夫々主検出ユ
ニットと歯止めユニットを備えた端子装置を設け、各端
子装置間を光伝送路で環状に接続し、各主検出ユニット
は光伝送路からの他変電所の遮断器,断路器の入,切デ
ータと自変電所の遮断器,断路器の入,切データが入力
し操作可信号を出力する操作可シーケンス回路と他変電
所のデータの中継手段及び自変電所のデータの他変電所
の端子装置への送信手段を備え、各歯止めユニットは、
主検出ユニットのフェイルセーフ回路よりなり、主検出
ユニットの操作可シーケンス回路の操作可出力を歯止め
ユニットのフェイルセーフ回路出力との論理積で出力す
るものである。
In order to achieve the above-mentioned object, the circuit breaker and disconnector erroneous operation preventing device of the present invention comprises:
Each substation that constitutes the unit substation system is provided with a terminal device equipped with a main detection unit and a pawl unit, respectively, and each terminal device is connected in an annular shape by an optical transmission line, and each main detection unit is connected from the optical transmission line. Relay of data of other substations and operable sequence circuits that input breaker / disconnector turn-on / off data of other substations and circuit breaker / disconnector turn-on / off data of own substation Means and transmission means to the substation terminal device other than the substation data, each pawl unit,
It is composed of a fail-safe circuit of the main detection unit, and outputs the operable output of the operable sequence circuit of the main detection unit as a logical product with the output of the fail-safe circuit of the pawl unit.

【0013】[0013]

【作用】各主検出ユニットは夫々他変電所の端子装置か
らのデータを送信するので、各端子装置間を環状に接続
している光伝送路には各変電所のデータが循環する。
Since each main detection unit transmits data from the terminal devices of the other substations, the data of each substation circulates in the optical transmission line connecting the terminal devices in a ring shape.

【0014】各端子装置の主検出ユニットの操作可シー
ケンス回路は光伝送路からの他変電所のデータと自変電
所のデータを用いて遮断器又は断路器の操作可能な場合
にのみ操作可信号を出力する。この投入可信号は歯止め
ユニットのフェイルセーフ回路出力との論理積で出力さ
れるので、遮断器,断路器の誤操作は確実に防止するこ
とができる。
The operable sequence circuit of the main detection unit of each terminal device is operable only when the breaker or the disconnector can be operated using the data of the other substation and the data of the substation from the optical transmission line. Is output. Since this closing enable signal is output as a logical product with the fail-safe circuit output of the pawl unit, erroneous operation of the circuit breaker and disconnector can be reliably prevented.

【0015】[0015]

【実施例】本発明の実施例について図面を参照して説明
する。
Embodiments of the present invention will be described with reference to the drawings.

【0016】図1に遮断器,断路器誤操作防止装置のシ
ステム構成を、図2に誤操作防止装置の変電所端子装置
の構成を示す。
FIG. 1 shows the system configuration of the circuit breaker / disconnector erroneous operation prevention device, and FIG. 2 shows the configuration of the substation terminal device of the erroneous operation prevention device.

【0017】図1,図2において、1O,1T,1K,1M
はCB,LS誤操作防止装置の各変電所O,T,K,M
の端子装置を示す。変電所端子装置1O,1T,1K,1M
は夫々主検出ユニット2,歯止めユニット3と主検出ユ
ニットと歯止めユニットの出力を論理積で出力する論理
回路4、一方の変電所から遮断器,断路器等のデータを
取り込む光受信器OE及び他方の変電所に遮断器,断路
器等のデータを送る光送信器E/Oで構成されている。
1 and 2, 1 O , 1 T , 1 K , 1 M
Are substations O, T, K, M of CB, LS error prevention device
The terminal device of FIG. Substation terminal equipment 1 O , 1 T , 1 K , 1 M
Are a main detection unit 2, a pawl unit 3, a logic circuit 4 for outputting the outputs of the main detection unit and the pawl unit as a logical product, an optical receiver OE for taking in data such as a circuit breaker and a disconnector from one substation, and the other. It consists of an optical transmitter E / O that sends data such as circuit breakers and disconnectors to the substation.

【0018】変電所端子装置1O,1T,1K,1Mのデー
タ「1」「2」「3」「4」が1O→1T→1K→1M→1
Oの方向に循環するよう変電所端子装置1O,1T,1K
Mの間が光ファイバOFで接続されている。
Substation terminal devices 1 O , 1 T , 1 K , 1 M data "1""2""3""4" are 1 O → 1 T → 1 K → 1 M → 1
O substation terminal device to circulate in the direction of 1 O, 1 T, 1 K ,
Between 1 M are connected by an optical fiber OF.

【0019】主検出ユニット2は、一方の変電所端子装
置からの受信データと自変電所データをもとに操作可能
のシーケンス処理を行うと共に、他の変電所装置からの
データを中継する機能と、自変電所装置からのデータを
他方の変電所装置へ送信する機能を収納する。
The main detection unit 2 has a function to perform operable sequence processing based on the received data from one substation terminal device and the self substation data, and to relay data from another substation device. , The function of transmitting the data from the own substation device to the other substation device is stored.

【0020】また、歯止めユニット3は、主検出ユニッ
ト2のフェイルセーフ機能を収納するものであり、主検
出ユニット機能からデータ送信機能並びにデータ中継機
能を除いたものとなっている。
Further, the pawl unit 3 accommodates the fail-safe function of the main detection unit 2, and is the main detection unit function excluding the data transmission function and the data relay function.

【0021】しかして、主検出ユニット2及び歯止めユ
ニット3で自変電所のCB,LS情報入力「A」をデジ
タル入力部D/Iで取り込むと共に、主検出ユニット2
は、直列−並列コード変換部P/Sから光送信器E/O
を介して他方の変電所装置に送信する。
Therefore, the main detection unit 2 and the ratchet unit 3 take in the CB and LS information input "A" of the substation through the digital input section D / I, and at the same time, the main detection unit 2
From the serial-parallel code conversion unit P / S to the optical transmitter E / O.
To the other substation device via.

【0022】また、主検出ユニット2及び歯止めユニッ
ト3は一方の変電所装置からの情報を光受信器O/Eを
介して並列−直列コード変換部S/Pで受信し、夫々の
CPU21,31で操作可能の判断を行いデジタル出力部
D/Oにて操作「可」出力を補助リレーMX,FXに行
う。
Further, the main detection unit 2 and the pawl unit 3 receive the information from one of the substation devices via the optical receiver O / E at the parallel-serial code conversion unit S / P, and the respective CPUs 2 1 , It is judged that the operation is possible at 3 1 , and the operation “OK” is output to the auxiliary relays MX and FX at the digital output section D / O.

【0023】補助リレーMX,FXの接点mx,fxを
直列に接続した論理積回路4をCB又はLSの実操作
「入」,「切」回路5,6に直列に入れる。接地されて
いる線路の誤充電防止の場合は「入」操作回路のみとな
る。
The AND circuit 4 in which the contacts mx and fx of the auxiliary relays MX and FX are connected in series is put in series in the actual operation "ON" and "OFF" circuits 5 and 6 of the CB or LS. To prevent accidental charging of grounded lines, use only the "ON" operation circuit.

【0024】図3のユニット変電所系統の場合の各変電
所装置の入力信号と送信信号の内容を表2に示す。
Table 2 shows the contents of input signals and transmission signals of each substation device in the case of the unit substation system of FIG.

【0025】[0025]

【表2】 [Table 2]

【0026】図3のユニット変電所系統の場合の各変電
所装置におけるCPUの処理は図4〜図9に示すような
操作可シーケンスで行う。
In the case of the unit substation system of FIG. 3, the processing of the CPU in each substation apparatus is performed in the operable sequence as shown in FIGS.

【0027】この実施例によれば、CPU21,31の操
作可能シーケンスにより、電源変電所O,Tの線路LS
の「入」可条件及びユニット変電所M,Kのバンク2次
CB「入」可条件が、最初の線路LS「開」状態の端子
において接地LSが投入されていないことになっている
ので、接地されている線路の誤充電(投入)が防止でき
る。
According to this embodiment, the lines LS of the power substations O and T are operated by the operable sequence of the CPUs 2 1 and 3 1.
Since the "ON" permission condition and the bank secondary CB "ON" permission condition of the unit substations M and K are that the ground LS is not turned on at the terminal of the first line LS "open" state, It is possible to prevent erroneous charging (turning on) of the grounded line.

【0028】また、ユニット変電所M,Kの線路LS,
バンク1次LSの操作(「入」,「切」)可条件が、線
路,バンク1次とも充電されていないことになっている
ので、線路LSによる電流開閉が防止できる。
Further, the lines LS of the unit substations M and K,
Since the condition that the operation (“ON”, “OFF”) of the bank primary LS can be performed is that neither the line nor the bank primary is charged, the current switching by the line LS can be prevented.

【0029】上記実施例は図3即ち、図10の(c)に
示すバンク形態3に関するものであるが、図10に示す
バンク形態1,2,4についても同様に考えられること
はいうもでもない。
Although the above embodiment relates to the bank mode 3 shown in FIG. 3, that is, FIG. 10C, the bank modes 1, 2, and 4 shown in FIG. 10 can be considered in the same manner. Absent.

【0030】[0030]

【発明の効果】本発明は、上述のとおり構成されている
ので、次に記載する効果を奏する。
Since the present invention is configured as described above, it has the following effects.

【0031】(1)遮断器,断路器の操作可能状態を各
変電所のデータ及び自己変電所のデータを用いて操作可
能シーケンス回路で自動的に判断し、フェイルセーフ条
件で出力しているので誤りがない。
(1) Since the operable states of the circuit breaker and the disconnector are automatically judged by the operable sequence circuit using the data of each substation and the data of the self-substation, and output under the fail-safe condition. There is no mistake.

【0032】(2)したがって、万一人間が誤って遮断
器,断路器を誤操作しても、確実にロックすることがで
きるので安全である。
(2) Therefore, even if a person accidentally operates the circuit breaker and the disconnecting switch by mistake, the person can surely lock the circuit breaker and the disconnector, which is safe.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例にかかるシステムの構成説明図。FIG. 1 is an explanatory diagram of a system configuration according to an embodiment.

【図2】端子装置構成を示すブロック回路図。FIG. 2 is a block circuit diagram showing a terminal device configuration.

【図3】ユニット変電所の系統図。FIG. 3 is a system diagram of a unit substation.

【図4】電源変電所Oの操作可シーケンス回路を示すブ
ロック回路図。
FIG. 4 is a block circuit diagram showing an operable sequence circuit of the power substation O.

【図5】電源変電所Kの操作可シーケンス回路を示すブ
ロック回路図。
5 is a block circuit diagram showing an operable sequence circuit of a power substation K. FIG.

【図6】ユニット変電所Kの操作可シーケンス回路(そ
の1)を示すブロック回路図。
FIG. 6 is a block circuit diagram showing an operable sequence circuit (No. 1) of the unit substation K.

【図7】ユニット変電所Kの操作可シーケンス回路(そ
の2)を示すブロック回路図。
FIG. 7 is a block circuit diagram showing an operable sequence circuit (No. 2) of the unit substation K.

【図8】ユニット変電所Mの操作可シーケンス回路(そ
の1)を示すブロック回路図。
FIG. 8 is a block circuit diagram showing an operable sequence circuit (No. 1) of the unit substation M.

【図9】ユニット変電所Mの操作可シーケンス回路(そ
の2)を示すブロック回路図。
FIG. 9 is a block circuit diagram showing an operable sequence circuit (No. 2) of the unit substation M.

【図10】ユニット変電所のバンク形態を示すブロック
回路図。
FIG. 10 is a block circuit diagram showing a bank configuration of a unit substation.

【符号の説明】[Explanation of symbols]

O,1T,1M,1K…端子装置 2…主検出ユニット 21,31…CPU 3…歯止めユニット 4…論理積回路 5…実操作「入」回路 6…実操作「切」回路 E/O…光送信器 D/I…デジタル入力部 D/O…デジタル出力部 M,K…ユニット変電所 O,T…電源変電所 O/E…光受信器 OF…光ファイバー P/S…直列−並列コード変換部 S/P…並列−直列コード変換部1 O , 1 T , 1 M , 1 K ... Terminal device 2 ... Main detection unit 2 1 , 3 1 ... CPU 3 ... Pawl unit 4 ... AND circuit 5 ... Actual operation "ON" circuit 6 ... Actual operation "OFF" Circuit E / O ... Optical transmitter D / I ... Digital input section D / O ... Digital output section M, K ... Unit substation O, T ... Power substation O / E ... Optical receiver OF ... Optical fiber P / S ... Serial-parallel code converter S / P ... Parallel-serial code converter

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ユニット変電所系統を構成する各変電所
に夫々主検出ユニットと歯止めユニットを備えた端子装
置を設け、各端子装置間を光伝送路で環状に接続し、 各主検出ユニットは光伝送路からの他変電所の遮断器,
断路器の入,切データと自変電所の遮断器,断路器の
入,切データが入力し操作可信号を出力する操作可シー
ケンス回路と他変電所のデータの中継手段及び自変電所
のデータの他変電所の端末装置への送信手段を備え、 各歯止めユニットは、主検出ユニットのフェイルセーフ
回路よりなり、 主検出ユニットの操作可シーケンス回路の操作可出力を
歯止めユニットのフェイルセーフ回路出力との論理積で
出力することを特徴とした遮断器,断路器の誤操作防止
装置。
1. A substation that constitutes a unit substation system is provided with a terminal device including a main detection unit and a pawl unit, and the terminal devices are connected in an annular shape by an optical transmission line. Circuit breakers of other substations from the optical transmission line,
Data of disconnecting switch ON / OFF data and breaker of own substation, operation sequence circuit for inputting ON / OFF data of disconnecting switch and outputting operation enable signal and relaying means of data of other substations and data of own substation Equipped with a transmitting means to the terminal device of another substation, each pawl unit consists of a fail-safe circuit of the main detection unit, and the operable output of the operable sequence circuit of the main detection unit is used as the fail-safe circuit output of the pawl unit. An erroneous operation prevention device for circuit breakers and disconnectors, which is characterized by outputting the logical product of
JP4136399A 1992-05-28 1992-05-28 Device for preventing erroneous operation of circuit breakers and disconnectors Expired - Fee Related JP3049942B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4136399A JP3049942B2 (en) 1992-05-28 1992-05-28 Device for preventing erroneous operation of circuit breakers and disconnectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4136399A JP3049942B2 (en) 1992-05-28 1992-05-28 Device for preventing erroneous operation of circuit breakers and disconnectors

Publications (2)

Publication Number Publication Date
JPH05325737A true JPH05325737A (en) 1993-12-10
JP3049942B2 JP3049942B2 (en) 2000-06-05

Family

ID=15174259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4136399A Expired - Fee Related JP3049942B2 (en) 1992-05-28 1992-05-28 Device for preventing erroneous operation of circuit breakers and disconnectors

Country Status (1)

Country Link
JP (1) JP3049942B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107069719A (en) * 2017-05-16 2017-08-18 华电北瑞电气(北京)有限公司 A kind of ring network power supply anti-misoperation system
CN112361897A (en) * 2020-11-03 2021-02-12 西安航天动力技术研究所 Flight time sequence generation system and method for missile system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107069719A (en) * 2017-05-16 2017-08-18 华电北瑞电气(北京)有限公司 A kind of ring network power supply anti-misoperation system
CN107069719B (en) * 2017-05-16 2024-02-13 华电北瑞电气(北京)有限公司 Looped network power supply misoperation prevention system
CN112361897A (en) * 2020-11-03 2021-02-12 西安航天动力技术研究所 Flight time sequence generation system and method for missile system
CN112361897B (en) * 2020-11-03 2023-01-31 西安航天动力技术研究所 Flight time sequence generation system and method for missile system

Also Published As

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JP3049942B2 (en) 2000-06-05

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