RED670 输电线路差动保护 用于保护、监测和控制架空线路和电缆

☆型号：RED670 输电线路差动保护 用于保护、监测和控制架空线路和电缆

【产品详情】

RED670 - 输电线路差动保护

为您的电力系统提供最大的可靠性

RED670 IED（智能电子设备）设计用于保护、监测和控制架空线路和电缆。此外，该简易爆炸装置还能够处理变压器馈线、发电机和变压器块。它提供了广泛的功能，包括配置机会和可扩展的硬件，以满足您的特定要求。

RED670 IED 在交付时经过预配置、型式测试，并使用默认参数进行设置，以实现快速高效的调试。这些 IED 配备了完整的功能，适用于单极断路器或具有单相或三相跳闸的多断路器布置。如果需要，它们也可以很容易地进行调整，以满足电力系统的特定要求。广泛的应用灵活性使这些 IED 成为新建和改造安装的绝佳选择。

RED670 IED 具有相位隔离电流差动保护功能，对高电阻故障具有出色的灵敏度，并为多达 5 个线路端子提供安全的相位选择。两绕组或三绕组的电力变压器可以包含在保护区内。

RED670可实现2端到5端线路的分相线路差动保护，适用于经

阻抗接地或直接接地系统，也适用于有串联补偿的线路。

在1 1/2 断路器和多断路器接线应用方式下，各侧相电流无需

外部连接合并就能直接接入RED670，因此，各侧电流均能正

确测量，从而使装置可整合与保护和控制功能相关的多个断路

器，并提高了线路差动保护功能的可靠性。

线路差动保护区内可包含变压器

RED670保护区内可以包含两卷或三卷变压器。线路差动保护

功能通过一些简单的参数设定就可以适应各种接线组别和主接

线方式的变压器应用，由于不需要辅助CT和其它保护设备，这

种解决方案可有效减少工程量。

当保护区内包含变压器时，先进的制动原理可以检测变压器充

电时的励磁涌流以实现灵敏的差动保护。

当线路末端连接一小型变压器时，变压器的线路端无需装设额

外的RED670就可实现线路差动保护。

对于故障电流小的线路故障，RED670的线路差动保护拥有定

时限或反时限特性，该特性可实现与支接变压器的高压侧或低

压侧的其它保护功能的选择性配合。

针对线路和电缆的全面保护功能

RED670内置的距离保护在通信通道故障时能保证故障的可靠

切除。全方案的距离保护具有独立的选相功能、电力系统振荡

检测功能和各种通道逻辑方案。四段式距离保护还带负荷阻抗

侵入算法，提高了检测重负荷线路高阻接地故障时的灵敏度。

☆型号：RED670 输电线路差动保护 用于保护、监测和控制架空线路和电缆

【英文介绍】

RED670 - Transmission line differential protection

Maximum reliability for your power system

The RED670 IED (Intelligent Electronic Device) is designed to protect, monitor and control overhead lines and cables. In addition, the IED is capable of handling transformer feeders, generators and transformer blocks. It offers a wide range of features, including configuration opportunities and scalable hardware to meet your specific requirements.

The RED670 IED is pre-configured, type-tested and set with default parameters at delivery for fast and efficient commissioning. These IEDs are fully functional and suitable for single-pole circuit breakers or multi-circuit breaker arrangements with single - or three-phase trips. If needed, they can also be easily adjusted to meet the specific requirements of the power system. The wide range of application flexibility makes these IEDs an excellent choice for new and retrofit installations.

The RED670 IED features phase-isolated current differential protection for excellent sensitivity to high-resistance faults and provides safe phase selection for up to 5 line terminals. Two - or three-winding power transformers can be included in the protected area.

RED670 can realize the phase division line differential protection of 2-end to 5-end lines, and is suitable for warp

Impedance ground or direct ground systems are also suitable for lines with series compensation.

In 1 1/2 circuit breaker and multi-circuit breaker wiring applications, the side phase current is not required

The external connection can be connected directly to the RED670, so the current on all sides can be positive

Accurate measurements enable the device to integrate multiple breaks associated with protection and control functions

And improve the reliability of the differential protection function of the line.

The line differential protection area may contain a transformer

The RED670 protection area can contain two or three coil transformers. Line differential protection

Function Through some simple parameter setting can be adapted to various wiring groups and main connections

Line mode transformer applications, because there is no need for auxiliary CT and other protective equipment, this

The solution can effectively reduce the amount of engineering.

When the protected area contains a transformer, advanced braking principles can detect transformer charging

Excitation inrush current in electrical time to achieve sensitive differential protection.

When the end of the line is connected to a small transformer, the line end of the transformer does not need to be installed

External RED670 can achieve line differential protection.

For line faults with small fault currents, the RED670 line differential protection has been specified

Time or inverse time characteristics, which can be realized with the branch transformer on the high voltage side or low

Selective combination of other protection functions on the pressure side.

Comprehensive protection for lines and cables

The RED670 built-in distance protection ensures reliable failure in the event of a communication channel failure

Remove. The distance protection of the whole scheme has independent phase selection function and power system oscillation

Detect functions and various channel logic schemes. The four-stage distance protection also has load impedance

The intrusion algorithm improves the sensitivity of detecting high-resistance ground faults of heavy load lines.

☆型号：RED670 输电线路差动保护 用于保护、监测和控制架空线路和电缆

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