SR745-W3-P5-G5-HI 变压器保护系统

SR745-W3-P5-G5-HI是Multilin生产的745系列变压器保护系统的一个型号。

该继电器具有多种功能和特点：

控制电源范围：控制电源的范围是90至300 V DC以及70至265 VAC。

符合标准：它符合IEEE、ANSI和NEMA标准，这确保了其兼容性和可靠性。

保护功能：提供了频率、百分比差动、过流和过励磁保护元件，可以对电力变压器进行全方位的保护。

监测功能：能够监测单个谐波和总谐波失真，有助于分析和解决系统中的谐波问题。

自适应功能：具有多项自适应继电功能，如动态CT变比失配校正、自适应时间过流元件和自适应谐波抑制，可以优化继电器的性能并适应不同的系统条件。

模拟和测试：该继电器具有模拟功能，可以测试从计算机生成的波形数据推断的继电器操作，为测试和验证提供了便利。

用户界面：配备40字符背光液晶显示屏和输入键盘，用户可手动调整设定值。此外，通过RS232程序端口，可以轻松连接运行EnerVista 745设置软件的计算机，实现方便的设定点管理。

机械保护和防尘：在操作期间提供机械保护，还具有防尘门，确保继电器的稳定运行和延长使用寿命。

连接和通信：具有多个逻辑输入和输出继电器，并包含模拟输入/输出选项。它还具有RS232、RS422/RS485等端口，支持多个继电器的持续监控和计算机的快速连接。

SR745-W3-P5-G5-HI继电器是一款功能强大且灵活的变压器保护系统，适用于各种电力系统配置。但是，对于具体的安装、配置和使用，建议遵循制造商的指南和安全规定，并可能需要咨询专业的技术人员或GE的服务团队。

The SR745-W3-P5-G5-HI is a model of the 745 series of transformer protection systems produced by Multilin.

The relay has a variety of functions and features:

Control power supply range: The control power supply range is 90 to 300 V DC and 70 to 265 VAC.

Standard compliance: It complies with IEEE, ANSI and NEMA standards, which ensures compatibility and reliability.

Protection function: Provides frequency, percentage differential, overcurrent and overexcitation protection components, can be a full range of power transformer protection.

Monitoring function: It can monitor single harmonics and total harmonic distortion, which helps to analyze and solve harmonic problems in the system.

Adaptive function: With a number of adaptive relay functions, such as dynamic CT ratio mismatch correction, adaptive time overcurrent elements and adaptive harmonic suppression, you can optimize the performance of the relay and adapt to different system conditions.

Simulation and testing: The relay has simulation capabilities to test relay operations inferred from computer-generated waveform data, facilitating testing and verification.

User interface: Equipped with a 40-character backlit LCD display and input keyboard, users can manually adjust the Settings. In addition, through the RS232 program port, computers running the EnerVista 745 setup software can be easily connected for convenient set point management.

Mechanical protection and dust protection: Mechanical protection is provided during operation, and dust doors are also available to ensure stable operation and extended service life of the relay.

Connectivity and communication: Has multiple logical input and output relays and includes analog input/output options. It also has RS232, RS422/RS485 ports, which support continuous monitoring of multiple relays and fast connection of computers.

The SR745-W3-P5-G5-HI relay is a powerful and flexible transformer protection system for a variety of power system configurations. However, for specific installation, configuration, and use, it is recommended to follow the manufacturer's guidelines and safety regulations and may be necessary to consult a professional technician or GE's service team.

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