WD81OU-002

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Protection relays play an essential role in protecting industrial and commercial electrical infrastructure. The WD81OU-002 is a multifunction over- and undervoltage protection relay with integrated communication capabilities. Developed in accordance with international engineering design standards, the WD81OU-002 is ideal for medium voltage applications to protect against overvoltage, undervoltage, or phase unbalance.

The WD81OU-002 is designed with a highly accurate and reliable closed-loop control for reliable protection against overvoltage and undervoltage. The relay employs two separate current transformers (CTs) to measure the electrical line current and voltage. A digital signal processor (DSP) is used to compare the inputs to a set threshold and determine whether an overvoltage, undervoltage, or phase unbalance situation has occurred. When an over- or undervoltage or phase unbalance is detected, the WD81OU-002 will activate a contactor the disconnect the line or circuit.

The WD81OU-002 also features integrated communication capabilities, including Modbus RTU, Ethernet, and various fieldbus protocols. These features allow for integration with a range of building automation systems and enable remote access and control of the relay. Additionally, the relay includes a graphic LCD display, which provides real-time monitoring of measured parameters, such as current, voltage, and phase unbalance. The display also provides troubleshooting and diagnostic information, including alarm or trip history.

The WD81OU-002 is a versatile, reliable, and reliable over- and undervoltage protection relay, suitable for both industrial and commercial applications. It is designed to provide both a high level of accuracy and an integrated communications system, allowing for easy integration into existing infrastructure. In addition, the LCD display makes it easy to monitor and troubleshoot system issues in real-time.

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