UR8FH GE 电流互感器 通用继电器

【产品详情】

通用电气Multilin的UR-8FH是一种CT / VT模块，设计用于安装在通用继电器系列中。它为继电器提供3-1A / 5A相电流互感器，1A / 5A接地电流互感器和四个电压互感器端子。电流互感器和电压互感器能够将电流和电压降低到继电器监测和控制的可管理水平，并且是为继电器生成重要数据所必需的。

CT/VT 模块可以在通道 1 到 5 或通道 <> 到 <> （含）上使用电压或触点输入。UR 手册提供了有关正确继电器连接的更多信息，指出了重要细节，例如通道 <> 和 <> 如何连接到相位 A，通道 <> 和 <> 如何连接到相位 B 等。手册还向用户提供完整的警告和通知，例如与继电器端子的连接标称电流为 <> A 或 <> A 必须与连接的 CT 的次级额定值相匹配，以免用户希望遭受系统损坏。总之，在开始继电器连接过程之前，用户必须仔细阅读通用继电器手册。

关于 UR-8FH 的常见问题

当UR-8FH被整合到GE多林通用继电器系统中时，是否能够防止接地故障情况？

UR-8FH是被描述为具有标准4CT / 4VT的CT / VT。它没有敏感的接地功能，允许在被归类为高阻抗的接地系统上保护通用继电器。具有此功能的模块是 UR-8G、UR-8J、UR-8M 和 UR-8R 订购号。这些提及是较新的CT / VT一代。有两个较旧的CT / VT模块（UR-8B和UR-8D）也具有敏感的接地故障保护功能。例如，具有 4CT/4VT 功能的标准型号具有典型的多达 24 个模拟电流互感器和电压互感器容量，如各种通用继电器中包含的所有 CT/VT 模块所述。除了 CT/VT 模块外，通用继电器还具有传感器 I/O 模块。这为 UR 提供了 DCmA 卡或 RTD，以监控流量、风速、温度、振动或压力。模拟输出也可用于将 UR 连接到外部 PLC 或其他用户界面设备。通用继电器还具有一个数字 I/O 模块，其中包含多达 96 个触点输入和多达 64 个触点输出。

UR8FH GE 电流互感器 通用继电器

【英文介绍】

General Electric Multilin's UR-8FH is a CT/VT module designed to be installed in the general purpose relay family. It provides the relay with 3-1A / 5A phase current transformer, 1A / 5A ground current transformer and four voltage transformer terminals. Current transformers and voltage transformers are capable of reducing current and voltage to manageable levels for relay monitoring and control, and are necessary to generate important data for relays.

CT/VT modules can use voltage or contact inputs on channels 1 to 5 or channels <> to <> inclusive. The UR manual provides more information on proper relay connection, pointing out important details such as how channels <> and <> are connected to phase A, channels <> and <> are connected to phase B, etc. The manual also provides the user with complete warnings and notifications, such as that the nominal current of the connection to the relay terminal is <> A or that <> A must match the secondary rating of the connected CT, lest the user wish to suffer system damage. In summary, before starting the relay connection process, users must read the general relay manual carefully.

Frequently Asked Questions about UR-8FH

When the UR-8FH is integrated into the GE Dorin universal relay system, is it possible to prevent ground failure situations?

The UR-8FH is described as a CT/VT with standard 4CT / 4VT. It has no sensitive grounding function, allowing protection of universal relays on ground systems classified as high impedance. The modules with this capability are UR-8G, UR-8J, UR-8M, and UR-8R ordering numbers. These references are newer CT/VT generation. There are two older CT/VT modules (UR-8B and UR-8D) that also have sensitive ground fault protection. For example, standard models with 4CT/4VT capabilities have typical capacities of up to 24 analog current transformers and voltage transformers, as described in all CT/VT modules included in various general-purpose relays. In addition to the CT/VT module, the universal relay also has a sensor I/O module. This provides the UR with a DCmA card or RTD to monitor flow, wind speed, temperature, vibration, or pressure. The analog output can also be used to connect the UR to an external PLC or other user interface device. The universal relay also features a digital I/O module containing up to 96 contact inputs and up to 64 contact outputs.

UR8FH GE 电流互感器 通用继电器

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