The MICOM P521 from Schneider Electric (formerly Areva) is a differential relay designed for protection applications in electrical power systems. This unit is part of the MICOM series, known for its robust relaying solutions. Specifically, the P521 is configured for two-ended differential protection, making it suitable for safeguarding transmission lines, transformers, and generators where communication channels are available between the two ends of the protected zone.

Technical details

• Relay Type: Differential Relay
• Manufacturer Series: MICOM
• Model Designation: P521
• Configuration: Two-Ended Differential Protection
• Protection Functionality: Differential protection for power system assets.
• Communication Interface: Requires communication channels for two-ended operation.
• Application Specifics: Designed for line, transformer, or generator differential protection schemes.
• Voltage/Current Ratings: Specific voltage and current ratings are not determinable from the provided information. Please consult the manufacturer's datasheet for precise specifications.

Applications & compatibility

This MICOM P521 relay is commonly deployed in utility substations and industrial power distribution systems. It is essential for protecting critical assets such as high-voltage transmission lines, large power transformers, and generators from internal faults. Its two-ended configuration necessitates a reliable communication link between protection devices at opposite ends of the protected equipment.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the MICOM P521 or contact our technical team for cross-reference assistance with compatible MICOM series components.