This technical guide provides essential information for the safe installation, commissioning, and operation of the MiCOM P921, P922, and P923 series of Voltage and Frequency Relays from Schneider Electric. These relays are designed for comprehensive voltage and frequency protection applications.
The document emphasizes safety procedures, including understanding symbols and external labels, proper installation and servicing practices, and precautions for handling electrical equipment. It details the importance of qualified personnel for all operations involving the relays.
Key sections cover:
- Introduction to the relays and their documentation.
- Health and safety guidelines for working with electrical equipment.
- Identification of symbols and external labels on the equipment.
- Detailed instructions for installation, commissioning, and servicing, including connection diagrams and torque specifications.
- Safety considerations for UL and CSA/CUL listed equipment.
- Operating conditions and specific guidance for current transformer circuits and battery replacement.
For detailed technical specifications and application-specific data, users are advised to consult the relevant product publications and contact Schneider Electric technical sales offices for any specific queries or problems.
Learn more about Schneider Electric's solutions at www.se.com.
