RET650 变压器保护

Description

RET650 变压器保护

可靠的保护和控制所有类型的电力变压器和电抗器

RET650为保护二绕组和三绕组变压器提供了最佳的“现成”现成解决方案。经过型式测试的RET650 ied(智能电子设备)的变体配备和配置了完整的功能和默认参数，以便于处理产品-从订购，工程和调试到可靠运行。

650系列IED(智能电子设备)具有许多有用的功能，例如显着减少了参数设置数量和扩展的IED HMI功能，包括每页15个动态三色指示led，最多三页，以及可配置的按键快捷方式用于不同的操作。

在650系列简易爆炸装置中，最基本的参数是在出厂前设置好的。您只需要设置特定于您的应用程序的参数。这使您可以快速地将简易爆炸装置投入使用。应用手册包含了为保护工程师提供支持的示例。

信心——完全自信

变压器保护RET650 ied属于Relion保护和控制产品系列。Relion产品系列为电力系统的保护，控制，测量和监督提供广泛的产品。为了确保可互操作和面向未来的解决方案，Relion产品的设计实现了IEC 61850标准的核心价值。凭借日立能源领先的技术、全球应用知识和经验丰富的支持网络，您可以完全相信您的系统在任何情况下都能可靠地运行。

无与伦比的灵敏度和速度

RET650为电力变压器绕组匝间故障提供了最好的覆盖范围，其独特的负序内部/外部故障鉴别器比传统的稳定变压器差动保护功能更快。它还支持极其敏感的保护，以检测不断演变的内部故障，以便在更严重的故障发生之前触发系统。RET650对主ct要求低，不需要插入ct。

所有直接或低阻抗接地绕组的低阻抗限制接地故障功能为外部故障提供了出色的稳定性。每个绕组都有单独的保护，不需要谐波稳定，确保高灵敏度和快速跳闸。该功能的附加定向零序电流准则提高了安全性。

过流功能提供必要的备份保护。热过载功能可防止变压器因过载而损坏。断路器故障保护允许高速后备跳闸周围断路器和重新跳闸自己的断路器。

RET650为您提供了基于应用灵活性的面向未来的概念，这使得它成为新安装和改造安装的绝佳选择。在IED内集成主保护和一系列备用保护功能，可提高您的电力系统性能。减少了硬件工程和安装时间，减少了对空间和备件的需求。

RET650

RET650 变压器保护

For reliable protection and control of all types of power transformers and reactors

RET650 offers an optimum ‘off-the-shelf’, ready-made solution for the protection of two- and three-winding transformers. The type-tested variant of RET650 IEDs (Intelligent Electronic Device) is delivered equipped and configured with complete functionality and with default parameters for easy handling of products – from ordering, engineering, and commissioning to reliable operation.

The 650 series IEDs (Intelligent Electronic Device) have a number of useful features, such as a significantly reduced number of parameter settings and extended IED HMI functionality, including 15 dynamic three-color indication LEDs per page, on up to three pages, and configurable push-button shortcuts for different actions.

In the 650 series IEDs, the most basic parameters are set before delivery from the factory. You only need to set the parameters specific to your application. This allows you to quickly take your IEDs into operation. The application manual includes setting examples to support your protection engineers.

Relion – Complete confidence

Transformer protection RET650 IEDs belong to the Relion protection and control product family. The Relion product family offers a wide range of products for the protection, control, measurement, and supervision of power systems. To ensure interoperable and future-proof solutions, Relion products have been designed to implement the core values of the IEC 61850 standard. With Hitachi Energy’s leading-edge technology, global application knowledge, and experienced support network, you can be completely confident that your system performs reliably – in any situation.

Unrivaled sensitivity and speed

RET650 offers the best possible coverage for power transformer winding turn-to-turn faults and the unique negative sequence internal/external fault discriminator is faster than a conventional stabilized transformer differential protection function. It also enables extremely sensitive protection to detect evolving internal faults so that the system can be tripped before a more severe fault with serious damages occurs. RET650 places low requirements on the primary CTs and no interposing CTs are needed.

The low impedance restricted earth-fault function for all directly or low impedance earthed windings provide excellent stability for external faults. Having individual protection for each winding without the need for harmonics stabilization ensures high sensitivity and fast tripping. The additional directional zero-sequence current criterion of this function increases security.

Overcurrent functions provide the necessary back-up protection. The thermal overload function prevents transformer damage caused by overload. Breaker failure protection allows high-speed back-up tripping of surrounding breakers and re-tripping of the own breaker.

RET650 provides you with a future-proof concept based on application flexibility, which makes it an excellent choice for both new and retrofit installations. The integration of the main protection and a range of back-up protection functions within the IED improve your power system performance. It also reduces hardware engineering and installation time as well as space and spare parts requirements.