WO2014048118A1 - Passive optical fiber switch of intelligent transformer substation and safety measure isolating method thereof - Google Patents

Abstract

Disclosed are a passive optical fiber switch of an intelligent transformer substation and a safety measure isolating method thereof. A passive optical fiber switch comprises an optical fiber collimator. At two ends of the optical fiber collimator, two optical fiber adapters are partially embedded in the optical fiber collimator. The optical fiber adapters are connected to optical fibers. A blocking plate is arranged in the optical fiber collimator. The blocking plate divides the optical fiber collimator into a left part and a right part, and a trigger switch is connected to the blocking plate. The present invention overcomes the defect of poor visibility of a soft pressing plate in safety measure isolation, and eliminates a risk of error wiring caused by plugging and pulling optical fibers for safety measure isolation and a hidden risk of damage to an optical fiber interface. No operation of an electronic device is needed, so as to eliminate the influence of interference from an external electromagnetic field, and provide high reliability. Same as a safety measure method of a conventional transformer substation, an obvious disconnection point is provided. The safety measure isolating method is simple and convenient to implement and restore, satisfies safety requirements of conventional repair and maintenance, and improves working efficiency, reliability and safety.

Description

智能变电站无源光纤开关及其安措隔离方法  Intelligent substation passive optical fiber switch and its isolation method

技术领域 本发明涉及一种无源式光纤开关以及其实现变电站安全措施隔离方法， 适用 于智能变电站中光纤网络信号的安全、 有效隔离和导通， 属于电力自动化技术 领域。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passive optical fiber switch and a method for implementing the same as a substation safety measure, which is suitable for safe, effective isolation and conduction of a fiber optic network signal in a smart substation, and belongs to the field of power automation technology.

背景技术 Background technique

常规变电站中， 设备之间通过电缆方式实现信息交互， 设备之间可以通过硬 压板的方式将重要的跳 /合闸命令和信号进行有效隔离和连通。 变电站二次设备 检修、 维护时， 需要将其与***联系的硬压板断开， 从而将设备进行隔离， 硬 压板即为隔离的明显断开点， 这是变电站二次***检修、 维护工作时重要安措 隔离措施。  In a conventional substation, information is exchanged between devices through cables. The important jump/close commands and signals can be effectively isolated and connected between the devices through hard platens. When the substation secondary equipment is overhauled and maintained, it is necessary to disconnect the hard pressure plate that is in contact with the system to isolate the equipment. The hard pressure plate is the obvious disconnection point of isolation. This is important for the secondary system maintenance and maintenance work of the substation. Angola isolation measures.

智能变电站中， 数字化网络信号取代了大量电缆形式的开关量信号和模拟量 釆样信号， 实现了信息的数字化和共享化。 设备之间通过光纤或交换机进行信 息交互， 已不再存在硬压板这一明显断开点。 保护、 测控等间隔层设备一般通 过设置软压板控制其发送网络信号的状态始终不变位或控制其不处理变位的网 络信号。 目前， 智能变电站普遍通过这种软压板方式进行网络信号的隔离， 但 这种软压板方式是通过软件方式实现信号的隔离， 只能控制网络信号在应用层 的状态， 而不能彻底断开网络信号在物理层上的发送和接收， 没有明显的 "断 开点"， 不具有可视性。  In the intelligent substation, the digital network signal replaces a large number of switching signals and analog signals in the form of cables, realizing the digitization and sharing of information. Information exchange between devices through fibers or switches eliminates the apparent disconnection of hard platens. Protection, measurement and control, etc., are generally controlled by setting a soft pressure plate to control whether the state of the transmitted network signal is always the same or to control the network signal that does not handle the displacement. At present, smart substations generally use this soft-pressing method to isolate network signals. However, this soft-pressing method is to isolate signals by software. It can only control the state of network signals in the application layer, but cannot completely disconnect network signals. There is no obvious "break point" for transmission and reception on the physical layer, and there is no visibility.

智能变电站进行检修、 维护等工作时， 为了确保网络信号的有效隔离， 具有 明显断开点， 有时会将相关光纤从接口处拔下， 检修、 维护等工作完成后再将 光纤恢复。 这种光纤插 /拔方式的安全措施可以从物理层上进行网络信号有效隔 离， 但是在恢复时非常麻烦且可能导致接线错误， 而且光纤接口频繁插 /拔也可 能使光纤接头和接口损伤或接触不良。  When the intelligent substation performs maintenance and maintenance work, in order to ensure effective isolation of the network signal, there is a clear disconnection point, and sometimes the relevant optical fiber is unplugged from the interface, and the optical fiber is restored after the maintenance and maintenance work is completed. This type of fiber insertion/removal security measures can effectively isolate network signals from the physical layer, but it is very cumbersome to recover and may cause wiring errors. Moreover, frequent insertion/extraction of fiber interfaces may damage or contact fiber connectors and interfaces. bad.

目前在光通信领域的电子式光纤开关， 釆用电子器件隔离或导通网络中的光 信号。 但是， 这种光纤开关需要电子器件可靠工作， 属于有源型设备， 在变电 站的强电磁环境中容易受干扰， 将增加光纤网络的故障率， 在智能变电站中不 适用。 因此， 提出基于一种无源式光纤开关的网络信号隔离安全措施， 既能满 足智能变电站安措隔离的要求， 又能满足可靠性要求， 而且实际操作简单， 具 有重要的实际应用意义。 Currently in the field of optical communications, electronic fiber optic switches use electronic devices to isolate or turn on optical signals in the network. However, such a fiber optic switch requires reliable operation of the electronic device, and is an active type device that is substation The station's strong electromagnetic environment is susceptible to interference, which will increase the failure rate of the fiber network and is not applicable in smart substations. Therefore, the network signal isolation security measures based on a passive optical fiber switch are proposed, which can meet the requirements of intelligent substation isolation and meet the reliability requirements, and the practical operation is simple, which has important practical application significance.

发明内容 Summary of the invention

本发明的目的是提供一种无源式光纤开关， 以实现光纤网络信号有效隔离 或导通， 简单、 可靠、 安全、 高效地实现智能变电站二次***安措隔离， 将目 前智能变电站中抽象的安措隔离措施可视化， 消除插 /拔光纤时存在的安全隐 患， 适用于智能变电站检修、 维护工作时的二次设备隔离， 同时提高检修、 维 护工作的可靠性和效率。  The object of the present invention is to provide a passive optical fiber switch to effectively isolate or conduct optical fiber network signals, and to realize intelligent substation secondary system security isolation in a simple, reliable, safe and efficient manner, and to abstract the current intelligent substation The Angola isolation measures are visualized to eliminate the potential safety hazards when plugging/unplugging optical fibers. It is suitable for secondary equipment isolation during intelligent substation maintenance and maintenance work, and improves the reliability and efficiency of maintenance and maintenance work.

光纤开关的作用是将光纤网络中的光路从物理上进行完全隔离或导通， 在 设备之间需要相互隔离时， 可以将光纤网络的光路彻底断开， 光信号不能到达 对方设备； 在设备之间需要交互信息时， 可以将光纤网络的光路完全导通， 设 备之间可以可靠交互信息。 从而可以使光纤网络中的光路在断开和导通之间可 靠切换， 实现设备之间信号的有效隔离和相互交互， 为智能变电站安全措施的 实施提供可靠手段。  The function of the fiber switch is to completely isolate or conduct the optical path in the fiber network. When the devices need to be isolated from each other, the optical path of the fiber network can be completely disconnected, and the optical signal cannot reach the other device; When interactive information is required, the optical path of the optical network can be completely turned on, and devices can reliably exchange information. Therefore, the optical path in the optical fiber network can be switched between disconnection and conduction, thereby effectively separating and interacting signals between devices, and providing a reliable means for implementing the safety measures of the intelligent substation.

为解决软压板方式隔离网络信号的不可见性、 避免插 /拔光纤隔离网络信号 的复杂工作及安全隐患、 消除电子式光纤开关易受电磁干扰的缺陷， 本发明提 供一种智能变电站无源光纤开关， 其特征在于： 包括光纤准直器， 在光纤准直 器的两端两光纤适配器部分嵌入光纤准直器中， 光纤适配器连接光纤， 遮挡板 位于光纤准直器中， 遮挡板将光纤准直器分为左、 右两部分， 触发开关与遮挡 板相连。  The invention provides a smart substation passive optical fiber in order to solve the invisibility of the soft-press board isolation network signal, avoid the complicated work and safety hazard of plugging/unplugging the optical fiber isolation network signal, and eliminate the defect that the electronic optical switch is susceptible to electromagnetic interference. The switch is characterized in that: a fiber collimator is included, and two fiber adapters are partially embedded in the fiber collimator at both ends of the fiber collimator, the fiber adapter is connected to the fiber, and the shielding plate is located in the fiber collimator, and the shielding plate is used to fix the fiber The straightener is divided into two parts, left and right, and the trigger switch is connected to the shielding plate.

前述的智能变电站无源光纤开关， 其特征在于： 光纤适配器接口为 ST、 sc、 FC、 LC等接口的一种， 用于连接需要改变光路通、 断状态的光纤。  The foregoing intelligent substation passive optical switch is characterized in that: the optical fiber adapter interface is one of interfaces such as ST, sc, FC, and LC, and is used for connecting an optical fiber that needs to change the optical path of the optical path.

前述的智能变电站无源光纤开关， 其特征在于： 所述光纤准直器为精密器 件， 两个光纤适配器的中心对齐， 可以使接入的两根光纤在物理光回路上完全 导通。 前述的智能变电站无源光纤开关， 其特征在于： 在所述光纤准直器外设置 有外框， 触发开关的一部分位于外框外侧。 The foregoing intelligent substation passive optical fiber switch is characterized in that: the optical fiber collimator is a precision device, and the center alignment of the two optical fiber adapters enables the two optical fibers to be completely turned on in the physical optical circuit. The foregoing intelligent substation passive optical fiber switch is characterized in that: an outer frame is disposed outside the optical fiber collimator, and a part of the trigger switch is located outside the outer frame.

本发明同时提供一种基于智能变电站无源光纤开关实现的安措隔离方法， 其特征在于， 包括以下步骤：  The invention also provides an anti-thesis isolation method based on the intelligent substation passive optical switch, which is characterized in that it comprises the following steps:

1 )通过无源式光纤开关的关闭和打开状态实现设备之间网络光信号的隔离 和导通；  1) isolation and conduction of network optical signals between devices through the closed and open states of passive optical switches;

2 )安措隔离方法实施时， 光纤开关关闭， 设备之间的光纤在光路上被隔离 成两段， 被检修、 维护设备发送的网络光信号传输到光纤开关处被终止， 无法 传输到其他设备或二次***中； 其他设备或二次***发送的网络光信号传输到 光纤开关处被终止， 被检修、 维护设备无法接收到其他设备或二次***中； 2) When the Angol isolation method is implemented, the fiber switch is turned off, and the fiber between the devices is isolated into two segments on the optical path. The network optical signal transmitted by the maintenance and maintenance device is terminated to the fiber switch and cannot be transmitted to other devices. Or in the secondary system; the network optical signal transmitted by the other equipment or the secondary system is terminated to the fiber switch, and the repaired and maintained equipment cannot receive the other equipment or the secondary system;

3 )安措隔离恢复正常运行时， 光纤开关打开， 设备之间的光纤在光路上连 通成一个通路， 设备之间网络信号正常交互， 光纤开关不影响光纤网络的正常 工作。 3) When the Angola isolation resumes normal operation, the fiber switch is turned on, and the fibers between the devices are connected to each other on the optical path. The network signals between the devices interact normally. The fiber switch does not affect the normal operation of the fiber network.

本发明所达到的有益效果：  The beneficial effects achieved by the invention:

本发明的智能变电站无源光纤开关及安措隔离方法， 釆用无源光纤开关实 现光纤光路的导通和断开， 有效隔离和导通网络光信号， 从而达到设备有效、 可靠隔离的目的。 这种安措方法， 基于机械开关方式实现光信号的导通和关断, 可解决软压板进行安措隔离时可视性差的不足； 可以消除插 /拔光纤进行安措隔 离带来的误接线风险和对光纤接口损伤的隐患； 不需要电子器件的工作， 消除 外界电磁场干扰的影响， 可靠性高， 使用寿命长， 因此有利于智能变电站中检 修、 维护工作时设备之间安措隔离措施的开展， 为光信号隔离提供明显断开点， 符合常规检修、 维护工作的安全性要求， 提高了工作效率、 可靠性及安全性。 附图说明  The smart substation passive optical switch and the security isolation method of the invention realize the conduction and disconnection of the optical fiber optical path by using the passive optical fiber switch, effectively isolating and conducting the network optical signal, thereby achieving the purpose of effective and reliable isolation of the device. The method of the safety measure realizes the on and off of the optical signal based on the mechanical switch mode, and can solve the problem of poor visibility when the soft pressure plate performs the isolation of the security measure; the misconnection of the plug/unplug optical fiber for the isolation of the security can be eliminated Risks and hidden dangers of damage to the fiber interface; no need for electronic devices to work, eliminate the influence of external electromagnetic field interference, high reliability, long service life, so it is beneficial to the isolation measures between equipment during maintenance and maintenance work in intelligent substation Developed to provide an obvious disconnection point for optical signal isolation, meet the safety requirements of routine maintenance and maintenance work, and improve work efficiency, reliability and safety. DRAWINGS

图 1为本发明无源光纤开关的结构示意图；  1 is a schematic structural view of a passive optical fiber switch according to the present invention;

图 2为本发明安措隔离方法实施流程示意图；  2 is a schematic diagram of an implementation process of an Angol isolation method according to the present invention;

图 3为本发明安措隔离恢复正常运行流程示意图；  3 is a schematic diagram of the normal operation process of the isolation and recovery of the Antuo;

图 4为本发明智能变电站二次设备间安措隔离示意图； 图 5为本发明智能变电站二次设备间安措恢复示意图； 4 is a schematic diagram of isolation of an auxiliary device between secondary devices of a smart substation according to the present invention; FIG. 5 is a schematic diagram of recovery of Antuo between secondary devices of a smart substation according to the present invention; FIG.

具体实施方式 本发明所述智能变电站安措隔离方法在原有的光纤网络回路中增加结构简 单、 可靠的无源光纤开关， 通过光纤开关实现光纤网络的物理光路进行隔断和 导通， 从而可将需要检修或维护的二次设备从***网络中有效隔离出来。 光纤 开关釆用机械方式实现关闭或打开状态的切换， 状态明显可视， 变电站运维人 员可直观获知光纤网络的状态。 本发明所述安措隔离方法与常规变电站的安措 方法相同， 具有明显的断开点， 符合变电站运维人员长久以来的思维习惯， 安 措方法实施和恢复简单、 方便。 DETAILED DESCRIPTION OF THE INVENTION The smart substation Angol isolation method of the present invention adds a simple and reliable passive optical fiber switch in the original optical fiber network loop, and realizes the physical optical path of the optical fiber network through the optical fiber switch to block and conduct, thereby being needed The secondary equipment that is overhauled or maintained is effectively isolated from the system network. The fiber optic switch is mechanically switched to the closed or open state, and the status is clearly visible. The substation operator can visually know the status of the fiber network. The method of the Angola isolation of the present invention is the same as the method of the conventional substation, and has obvious disconnection points, which is consistent with the long-term thinking habits of the substation operation and maintenance personnel, and the implementation and recovery of the Angola method is simple and convenient.

智能变电站无源光纤开关， 包括光纤准直器 11 , 在光纤准直器 11的两端两 光纤适配器 12部分嵌入光纤准直器中， 光纤适配器连接光纤 1 3 , 遮挡板 14位 于光纤准直器 11中， 遮挡板 14将光纤准直器分为左、 右两部分， 触发开关 15 与遮挡板 14相连。  The intelligent substation passive optical switch includes a fiber collimator 11 , and two fiber optic adapters 12 are embedded in the fiber collimator at both ends of the fiber collimator 11 , the fiber optic adapter is connected to the optical fiber 13 , and the shielding plate 14 is located in the optical fiber collimator. In FIG. 11, the shielding plate 14 divides the fiber collimator into two parts, left and right, and the trigger switch 15 is connected to the shielding plate 14.

光纤适配器接口为 ST、 SC、 FC、 LC等接口的一种， 用于连接需要改变光路 通、 断状态的光纤。  The fiber adapter interface is one of the interfaces of ST, SC, FC, and LC. It is used to connect optical fibers that need to change the optical path.

所述光纤准直器为精密器件， 两个光纤适配器的中心对齐， 可以使接入的 两根光纤在物理光回路上完全导通。  The fiber collimator is a precision device, and the center alignment of the two fiber adapters enables the two fibers that are connected to be completely turned on in the physical optical circuit.

在所述光纤准直器外设置有外框 16 , 触发开关的一部分位于外框外侧。 通过改变遮挡板的位置， 使其远离光纤准直器， 光纤准直器的左、 右两部 分完全导通， 此时光纤准直器为一个导通体， 通过光纤适配器接入光纤开关的 两根光纤在光路上完全导通， 可以视为一根光纤； 通过改变遮挡板的位置， 使 其完全处于光纤准直器中， 光纤准直器的左、 右两部分被完全隔离， 此时通过 光纤适配器接入光纤开关的两根光纤在光路上被完全切断， 相互之间光信号不 能传递；  An outer frame 16 is disposed outside the fiber collimator, and a part of the trigger switch is located outside the outer frame. By changing the position of the shielding plate away from the fiber collimator, the left and right portions of the fiber collimator are completely turned on. At this time, the fiber collimator is a conducting body, and the fiber optic switch is connected to the fiber switch. The root fiber is completely conductive on the optical path and can be regarded as a single fiber. By changing the position of the shielding plate so that it is completely in the fiber collimator, the left and right parts of the fiber collimator are completely isolated. The two fibers of the fiber optic adapter connected to the fiber switch are completely cut off on the optical path, and the optical signals cannot be transmitted between each other;

触发开关通过无源机械方式直接或间接控制遮挡板的运动位置， 其可以是 按钮形式、 拨码方式、 旋钮方式或其它联动方式， 实现光纤开关打开和关闭状 态的转换， 且具有明显的关闭状态和打开状态的显示。 光纤开关位于光纤回路中， 可以集成于光纤法兰盘中集中安装， 也可独立 分散安装， 其属于光纤网络中的一部分， ***设计阶段就应充分考虑其安装位 置。 The trigger switch directly or indirectly controls the moving position of the shielding plate by passive mechanical means, which may be a button form, a dialing mode, a knob mode or other linkage mode, and realizes the conversion of the optical fiber switch on and off states, and has an obvious closed state. And the display of the open state. The fiber switch is located in the fiber optic circuit and can be integrated into the fiber flange for centralized installation. It can also be installed separately. It is part of the fiber network. The installation position should be fully considered during the system design phase.

本发明所述智能变电站安措隔离方法进行设备安措隔离时， 具体实施步骤 如图 2:  When the intelligent substation Angol isolation method of the present invention performs equipment isolation, the specific implementation steps are as shown in FIG. 2:

1 )检查被隔离设备与***网络通信状态应正常， 包括***中其它设备接收 被隔离设备的光纤网络通信正常， 被隔离设备接收***中光纤网络通信正常； 1) Check that the communication status between the isolated device and the system network should be normal, including the other devices in the system receiving the optical fiber network communication of the isolated device is normal, and the optical fiber network communication in the receiving device of the isolated device is normal;

2 ) 记录被隔离设备与***光纤网络的所有光纤开关的状态； 2) Record the status of all fiber switches of the isolated device and the system fiber network;

3 )逐一关闭被隔离设备向***发送光纤网络信号的光纤上的光纤开关， 并 在关闭后在***中相应设备上检查网络信号应中断；  3) Turn off the fiber switch on the fiber that sends the fiber network signal to the system by the isolated device one by one, and check that the network signal should be interrupted on the corresponding device in the system after shutting down;

4 )逐一关闭被隔离设备接收***光纤网络信号的光纤上的光纤开关， 并在 关闭后检查被隔离设备的网络信号应中断；  4) Turn off the fiber switch on the fiber receiving the system fiber network signal by the isolated device one by one, and check that the network signal of the isolated device should be interrupted after being turned off;

5 ) 记录所有被关闭的光纤开关位置及状态。  5) Record the position and status of all closed fiber switches.

本发明所述智能变电站安措隔离方法进行设备安措隔离恢复正常运行时， 具体实施步骤如图 3:  When the intelligent substation Angola isolation method of the present invention performs the isolation and recovery of the equipment safety measures, the specific implementation steps are as shown in FIG. 3:

1 )核对安措隔离执行时的光纤开关位置及状态；  1) Check the position and state of the fiber switch when the Angola is isolated and executed;

2 )检查被隔离设备与***网络通信状态应中断， 包括***中其它设备接收 被隔离设备的相关光纤网络通信中断， 被隔离设备接收***中相关光纤网络通 信中断；  2) Check that the communication status between the isolated device and the system network should be interrupted, including the interruption of the related optical fiber network communication of other devices in the system receiving the isolated device, and the related optical fiber network communication in the receiving device of the isolated device is interrupted;

3 )逐一打开被隔离设备向***发送光纤网络信号的光纤上的光纤开关， 并 在打开后在***中相应设备上检查网络信号应恢复正常；  3) Open the fiber switch on the fiber that sends the fiber network signal to the system by the isolated device one by one, and check that the network signal should be restored to normal on the corresponding device in the system after being turned on;

4 )逐一打开被隔离设备接收***光纤网络信号的光纤上的光纤开关， 并在 打开后检查被隔离设备的网络信号应恢复正常；  4) Open the optical fiber switch on the optical fiber that receives the optical fiber network signal of the system by the isolated device one by one, and check that the network signal of the isolated device should be restored after being turned on;

5 )核对恢复后的光纤开关状态与安措执行前记录的光纤开关状态， 二者应 本发明所述的安措隔离方法进行设备隔离时， 关闭被隔离设备与***通信 网络回路中的光纤开关， 被隔离设备与***通信的光纤在物理光路上被隔离成 两段， 光波信号在光纤开关处被中断， 无法穿透光纤开关。 光纤开关通过的光 信号功率应为 OdBm, 从而网络光信号无法传输到对端设备， 如图 4所示， 实现 了设备的隔离。 5) Checking the state of the restored fiber switch and the state of the fiber switch recorded before the execution of the device. When the device is isolated by the method of the isolation method according to the present invention, the fiber switch in the communication network loop of the isolated device and the system is closed. The fiber that is isolated by the isolated device and the system is isolated into two segments on the physical optical path. The optical wave signal is interrupted at the fiber switch and cannot penetrate the fiber switch. Light passing through the fiber switch The signal power should be OdBm, so that the network optical signal cannot be transmitted to the peer device. As shown in Figure 4, the device is isolated.

本发明所述的安措隔离在恢复时， 打开被隔离设备与***通信网络回路中 的光纤开关，此时，光纤开关在网络回路中是透光体，其光衰耗应不大于 0. 5dBm, 被隔离成两段的光纤此时连通成一个整体， 光信号可以从光纤一端透过光纤开 关传输到光纤的另一端， 如图 5 所示。 从而网络光信号可以顺利传输到对端设 备， 实现了网络的正常通信。  5dBm, the light attenuation of the optical fiber switch in the network loop is not more than 0. 5dBm The optical fibers that are isolated into two segments are connected together as a whole, and the optical signal can be transmitted from one end of the optical fiber through the optical fiber switch to the other end of the optical fiber, as shown in FIG. 5. Therefore, the network optical signal can be smoothly transmitted to the peer device, and the normal communication of the network is realized.

本发明所述安措隔离方法中光纤开关的安装位置应在实际工程应用中考 虑， 可以集成于光纤法兰盘中， 也可以安装于光纤转接盒内， 也可独立分散安 装， 但不限于这几种方式。  The installation position of the optical fiber switch in the Angol isolation method of the present invention should be considered in practical engineering applications, and may be integrated into the optical fiber flange, or may be installed in the optical fiber transfer box, or may be independently dispersed, but not limited thereto. These are the ways.

上述实施例不以任何方式限定本发明， 凡釆用等同替换或等效变换的形式 所获得的技术方案落在本发明的保护范围之内。  The above embodiments are not intended to limit the invention in any way, and the technical solutions obtained in the form of equivalent replacement or equivalent transformation are within the scope of the invention.

Claims

权利 要 求 书 Claim

1.一种智能变电站无源光纤开关， 其特征在于： 包括光纤准直器， 在光纤 准直器的两端， 两光纤适配器部分嵌入光纤准直器中， 光纤适配器连接光纤， 遮挡板位于光纤准直器中， 遮挡板将光纤准直器分为左、 右两部分， 触发开关 与遮挡板相连。 A smart substation passive optical switch, comprising: a fiber collimator, at two ends of the optical fiber collimator, the two optical fiber adapters are partially embedded in the optical fiber collimator, the optical fiber adapter is connected to the optical fiber, and the shielding baffle is located at the optical fiber In the collimator, the shielding plate divides the fiber collimator into two parts, left and right, and the trigger switch is connected to the shielding plate.

2.根据权利要求 1 所述的智能变电站无源光纤开关， 其特征在于： 光纤适 配器接口为 ST、 SC、 FC、 LC接口中的一种。  The intelligent substation passive optical fiber switch according to claim 1, wherein: the optical fiber adapter interface is one of ST, SC, FC, and LC interfaces.

3.根据权利要求 1 所述的智能变电站无源光纤开关， 其特征在于： 两个光 纤适配器的中心对齐。  3. The intelligent substation passive optical switch of claim 1 wherein: the centers of the two fiber optic adapters are aligned.

4.根据权利要求 1 所述的智能变电站无源光纤开关， 其特征在于： 在所述 光纤准直器外设置有外框， 触发开关的一部分位于外框外侧。  The intelligent substation passive optical fiber switch according to claim 1, wherein: an outer frame is disposed outside the optical fiber collimator, and a part of the trigger switch is located outside the outer frame.

5.一种基于智能变电站无源光纤开关实现的安措隔离方法， 其特征在于， 包括以下步骤：  5. An ampere isolation method based on a smart substation passive optical switch, characterized in that it comprises the following steps:

1 )通过无源式光纤开关的关闭和打开状态实现设备之间网络光信号的隔离 和导通；  1) isolation and conduction of network optical signals between devices through the closed and open states of passive optical switches;

2 )安措隔离方法实施时， 光纤开关关闭， 设备之间的光纤在光路上被隔离 成两段， 被检修、 维护设备发送的网络光信号传输到光纤开关处被终止， 无法 传输到其他设备或二次***中； 其他设备或二次***发送的网络光信号传输到 光纤开关处被终止， 被检修、 维护设备无法接收到其他设备或二次***中； 2) When the Angol isolation method is implemented, the fiber switch is turned off, and the fiber between the devices is isolated into two segments on the optical path. The network optical signal transmitted by the maintenance and maintenance device is terminated to the fiber switch and cannot be transmitted to other devices. Or in the secondary system; the network optical signal transmitted by the other equipment or the secondary system is terminated to the fiber switch, and the repaired and maintained equipment cannot receive the other equipment or the secondary system;

3 )安措隔离恢复正常运行时， 光纤开关打开， 设备之间的光纤在光路上连 通成一个通路， 设备之间网络信号正常交互， 光纤开关不影响光纤网络的正常 工作。 3) When the Angola isolation resumes normal operation, the fiber switch is turned on, and the fibers between the devices are connected to each other on the optical path. The network signals between the devices interact normally. The fiber switch does not affect the normal operation of the fiber network.