在电力系统中，UR8NH VT 模块（电压互感器模块）的主要作用是将高电压转换为低电压，以便进行测量、保护和控制。其工作原理是利用变压器的原理，将高电压的交流电转换为低电压的交流电，同时保持电压的比例关系不变。

UR8NH   CT/VT模块  可包括在通用继电器多线路单元中

UR8NH VT 模块通常由一组变压器和相关的电子元件组成。变压器的初级绕组连接到高电压的电力线路，次级绕组则连接到低电压的测量、保护和控制设备。变压器利用电磁感应原理，将高电压的交流电转换为低电压的交流电，同时保持电压的比例关系不变。电子元件则用于对转换后的低电压信号进行处理和放大，以便进行测量、保护和控制。

通过使用 UR8NH VT 模块，电力系统中的测量、保护和控制设备可以安全地连接到高电压的电力线路上，并准确地测量电压值。同时，VT 模块还可以为电力系统提供保护，防止高电压对设备造成损坏。

关于UR-8NH的常见问题

GE Multilin UR系列通用继电器的高级设备健康诊断如何影响设备附带的CT/VT模块(如UR- 8nh) ?

通用继电器系统配备了在启动条件下完成健康诊断测试的标准操作程序。为了监视通用继电器的功能和硬件，这些先进的设备健康诊断甚至在运行状态下继续进行。UR-8NH是一种特定类型的 CT/VT模块，可包括在通用继电器多线路单元中。CT/VT模块可以为通用继电器提供多达24个模拟CT或VT输入。监控这些输入，以确认信号的有效性，以确保完整性。内部直流电压水平也由通用继电器记录，以便完成主动维护。UR-8NH是用于Multilin通用继电器系统的CT/VT模块的新型号。这个特殊的订单代码(UR-8NH)是8N描述的，这意味着这个CT/VT模块具有标准的8CT和增强的诊断。如果CT/VT具有灵敏接地能力，那么通用继电器也可以在上述功能的基础上获得接地故障保护。

UR8NH   CT/VT模块  可包括在通用继电器多线路单元中

In the power system, the main role of the UR8NH VT module (voltage transformer module) is to convert high voltage to low voltage for measurement, protection and control. Its working principle is to use the principle of transformers to convert high-voltage alternating current into low-voltage alternating current, while keeping the proportional relationship of voltage unchanged.

The UR8NH VT module typically consists of an array of transformers and associated electronic components. The primary winding of the transformer is connected to the high-voltage power line, and the secondary winding is connected to the low-voltage measurement, protection and control equipment. Transformers use the principle of electromagnetic induction to convert high-voltage alternating current into low-voltage alternating current, while keeping the proportional relationship of voltage unchanged. Electronic components are used to process and amplify the converted low-voltage signal for measurement, protection and control.

With UR8NH VT modules, measurement, protection and control devices in power systems can be securely connected to high-voltage power lines and accurately measure voltage values. At the same time, the VT module can also provide protection for the power system to prevent high voltage damage to the equipment.

Frequently Asked Questions about UR-8NH

How does advanced device health diagnostics for GE Multilin UR series general purpose relays affect CT/VT modules (such as UR-8NH) that come with the device?

The universal relay system is equipped with standard operating procedures for performing health diagnostic tests under start-up conditions. In order to monitor the function and hardware of general-purpose relays, these advanced equipment health diagnostics continue even in the operating state. The UR-8NH is a specific type of CT/VT module that can be included in a universal relay multi-line unit. The CT/VT module can provide up to 24 analog CT or VT inputs for general purpose relays. These inputs are monitored to confirm the validity of the signal to ensure integrity. The internal DC voltage level is also recorded by a universal relay for active maintenance. The UR-8NH is a new model of CT/VT module for Multilin universal relay systems. This particular order code (UR-8NH) is described by 8N, which means that this CT/VT module has standard 8CT and enhanced diagnostics. If CT/VT has a sensitive grounding capability, then the universal relay can also be ground fault protection in addition to the above features.