RED670 1MRK000028-CAR01 线路差动保护RED670 2.0

RED670用于各类网络架空线路和电缆的保护、控制和监测。IED可用于从配电到最高电压水平。适用于对单相、三相和/或三相跳闸有要求的重载线路和多端子线路的保护。该IED也适用于保护发电机组变压器的电缆馈线。
相隔离电流差动保护为高阻故障提供了良好的灵敏度，并提供了安全的选相。每相六个稳定电流输入的可用性允许在三个终端应用中使用多断路器安排或最多五个终端应用中使用单断路器安排。差分方案中涉及的ied之间的通信基于IEEE C37.94标准，当需要冗余时，可以在重要安装中复制。
充电电流补偿允许在长架空线路和电缆上也具有高灵敏度。
包括全方案距离保护，以便在差分方案的通信信道故障时与差分方案并行提供独立保护。然后，距离保护为整个线路提供保护，包括在通信故障或通过使用独立通信通道提供完全冗余保护方案(即第二个主要保护方案)的情况下的远程端备份能力。在ied之间的通信中，有8个通道可用于行间信号和其他二进制信号。

高阻抗差动保护可用于保护t型馈线或线路电抗器。
用于单相、两相和/或三相重合闸的自动合闸包括用于多断路器安排的优先电路。它配合同步检查功能与高速或延迟重合闸。
高设定瞬时相位和接地过流，四步定向或无定向延迟相位和接地过流，热过载和两步欠压和过压功能是可用功能的示例，允许用户满足任何应用要求。
简易爆炸装置还可以提供全面的控制和联锁功能，包括与同步检查功能合作，以便集成主或备用控制。
干扰记录和故障定位器，允许独立的故障后分析后，主要干扰。的
干扰记录仪也将显示远站电流，接收到这个IED，时间补偿与测量通信时间。
失步功能可用于在发生失步时分离靠近电气中心的电力系统部分。
IED可用于具有IEC 61850-9-2LE过程总线的应用中，最多可使用六个合并单元(MU)，具体取决于IED中包含的其他功能。
每个MU有8个模拟通道，通常有4个电流和4个电压。常规和合并单元通道可以在应用程序中自由混合。
逻辑是用图形工具准备的。先进的逻辑能力允许特殊应用，如自动打开多断路器安排的断开器，关闭断路器环，负载转移逻辑等。图形化配置工具确保测试和调试简单、快速

RED670

RED670 is used for the protection, control and monitoring of overhead lines and cables in all types of networks. The IED can be used from distribution up to the highest voltage levels. It is suitable for the protection of heavily loaded lines and multiterminal lines where the requirement for tripping is one-, two-, and/or three-phase. The IED is also suitable for protection of cable feeders to generator block transformers.
The phase segregated current differential protection provides an excellent sensitivity for high resistive faults and gives a secure phase selection. The availability of six stabilized current inputs per phase allows use on multi-breaker arrangements in three terminal applications or up to five terminal applications with single breaker arrangements. The communication between the IEDs involved in the differential scheme is based on the IEEE C37.94 standard and can be duplicated for important installations when required for redundancy reasons.
Charging current compensation allows high sensitivity also on long overhead lines and cables.
A full scheme distance protection is included to provide independent protection in parallel with the differential scheme in case of a communication channel failure for the differential scheme. The distance protection then provide protection for the entire line including the remote end back up capability either in case of a communications failure or via use of an independent communication channel to provide a fully redundant scheme of protection (that is a second main protection scheme). Eight channels for intertrip and other binary signals are available in the communication between the IEDs.

A high impedance differential protection can be used to protect T-feeders or line reactors.
The auto-reclose for single-, two- and/or three phase reclosing includes priority circuits for multi-breaker arrangements. It cooperates with the synchronism check function with high-speed or delayed reclosing.
High set instantaneous phase and earth overcurrent, four step directional or un-directional delayed phase and earth overcurrent, thermal overload and two step under- and overvoltage functions are examples of the available functions allowing the user to fulfill any application requirement.
The IED can also be provided with a full control and interlocking functionality including co-operation with the synchronism check function to allow integration of the main or back-up control.
Disturbance recording and fault locator are available to allow independent post-fault analysis after primary disturbances. The
Disturbance recorder will also show remote station currents, as received to this IED, time compensated with measure communication time.
Out of Step function is available to separate power system sections close to electrical centre at occurring out of step.
The IED can be used in applications with IEC 61850-9-2LE process bus with up to six merging units (MU) depending on other functionality included in the IED.
Each MU has eight analogue channels, normally four currents and four voltages. Conventional and Merging Unit channels can be mixed freely in the application.
The logic is prepared with a graphical tool. The advanced logic capability allows special applications such as automatic opening of disconnectors in multi-breaker arrangements, closing of breaker rings, load transfer logics etc. The graphical configuration tool ensures simple and fast testing and commissioning