REG670 智能电子设备 发电机保护

REG670 智能电子设备 发电机保护

REG670 IED(智能电子设备)为水电站、抽水蓄能电站、燃气电站、联合循环电站、蒸汽电站和热电联产电站中的发电机、原动机和升压变压器提供保护和监控。凭借出色的性能、灵活性和可扩展性，它满足了世界各地对新安装和改造的苛刻要求。

基于日立能源公司的丰富经验，REG670将发电机保护提升到一个新的性能水平。多达24个模拟输入允许在一个IED中集成主保护和备用保护。或者，发电机保护范围可包括变压器等其他物体。这使得主服务器1和主服务器2中的保护完全复制。这些功能可以减少保护整个发电站所需的IED数量，同时提高可用性。这反过来又简化了安装，降低了与调试、维护和备件相关的生命周期成本。REG670功能还包含智能故障标准，确保无与伦比的选择性和灵敏度。

使用先进的创新滤波技术，REG670还可以为涡轮发电机提供集成的次同步谐振保护。

REG670的发电机保护方案满足zui大可靠性和可用性的要求。发电机差动保护具有极快的检测标准，典型操作时间为15 ms同时保持高安全性。

在众多可用功能中，REG670可以包括基于注入的100%定子和转子接地故障保护，以及基于三次谐波的100%定子接地故障保护。这些解决方案提供了一种新的方式来优化与发电站的重要性或规模相关的保护系统的性价比。日立能源公司创新性地实施了注入原理，允许通过中性点VT或位于发电机终端的开口三角形VT进行注入。由于不需要改变初级电路或接地电阻，保护系统的设计、安装和调试变得简单快捷。基于三次谐波的100%定子接地故障保护利用差动原理，提供高灵敏度和安全性。这确保了即使在低负载条件下也能正确运行。

REG670 智能电子设备 发电机保护
The REG670 IED(Intelligent Electronics) protects and monitors generators, prime movers and boost transformers in hydroelectric, pumped storage, gas-fired, combined cycle, steam and cogeneration power plants. With outstanding performance, flexibility and scalability, it meets the demanding requirements for new installations and retrofits around the world.

Based on Hitachi Energy's extensive experience, the REG670 takes generator protection to a new level of performance. Up to 24 analog inputs allow the integration of primary and standby protection in a single IED. Alternatively, the generator protection may include other objects such as transformers. This makes the protection in master server 1 and master server 2 fully replicated. These features can reduce the number of IEDs needed to protect the entire power station while improving availability. This in turn simplifies installation and reduces life cycle costs associated with commissioning, maintenance and spare parts. The REG670 feature also incorporates intelligent failure standards, ensuring unmatched selectivity and sensitivity.

Using advanced and innovative filtering technology, the REG670 can also provide integrated sub-synchronous resonance protection for turbines and generators.

The REG670's generator protection solution meets the requirements for maximum reliability and availability. Generator differential protection has extremely fast test standards with typical operating time of 15 ms while maintaining high safety.

Among the many available features, the REG670 can include 100% stator and rotor ground fault protection based on injection, and 100% stator ground fault protection based on third harmonics. These solutions offer a new way to optimize the cost performance of protection systems related to the importance or size of a power station. Hitachi Energy has innovatively implemented the injection principle, allowing injection through a neutral point VT or an open triangular VT located at the generator terminal. The design, installation and commissioning of the protection system is simple and fast because there is no need to change the primary circuit or ground resistance. 100% stator ground fault protection based on third harmonics utilizes differential principle to provide high sensitivity and safety. This ensures correct operation even under low load conditions.

REG670 智能电子设备 发电机保护