
Schneider MiCOM P821 PowerLogic Breaker Failure Protection Relay
Schneider MiCOM P821 PowerLogic Breaker Failure Protection Relay Suppliers,Exporters in India
Schneider MiCOM P821 PowerLogic Breaker Failure Protection Relay is a numerical relay developed to provide fast and reliable breaker failure protection for medium-, high-, and extra-high-voltage power systems. It is designed to detect circuit breaker failures and initiate backup tripping when the primary breaker does not clear a fault, helping protect the network from prolonged fault conditions.
The relay combines breaker failure protection with monitoring and supervision functions, making it suitable for utility substations, industrial power systems, and transmission networks. Its flexible design supports both single-stage and two-stage breaker failure schemes, allowing it to be adapted to different protection philosophies and substation layouts.
MiCOM P821 provides dependable phase-segregated fault detection for single-pole and three-pole tripping applications. It also offers sensitive residual current detection, fast reset times, and straightforward configuration using the standard MiCOM Px20 settings platform.
Specifications
- Product Name: Schneider MiCOM P821 PowerLogic Breaker Failure Protection Relay
- Product Family: PowerLogic™
- Relay Type: Breaker Failure Protection Relay
- Application: Circuit Breaker Failure Protection
- System Voltage: Medium Voltage (MV), High Voltage (HV) and Extra High Voltage (EHV)
- Protection Functions: Breaker Failure Protection, Residual Current Detection and Backup Protection
- Breaker Failure Scheme: Single-Stage (tBF1) or Two-Stage (tBF1 & tBF2)
- Tripping: Single-Pole and Three-Pole Breaker Tripping
- Detection: Phase-Segregated Fault Detection
- Monitoring: Circuit Breaker and Protection Scheme Monitoring
- Reset Time: Fast Reset Operation
- Configuration: Standard MiCOM Px20 Setting Platform
- Communication: Suitable for SCADA and Substation Automation Integration
Features
- Advanced breaker failure protection relay
- Single-stage or two-stage breaker failure logic
- Reliable phase-segregated fault detection
- Supports single-pole and three-pole tripping
- Sensitive residual current detection
- Fast breaker failure detection and backup tripping
- Extensive monitoring and supervision functions
- Fast reset time for improved system availability
- Suitable for MV, HV and EHV networks
- Flexible configuration for different protection schemes
- Easy programming using the MiCOM Px20 platform
- Simple integration with SCADA and substation automation systems
Applications
- Utility transmission substations
Distribution substations - High-voltage switchyards
- Extra-high-voltage transmission networks
- Industrial substations
- Power generation plants
- Renewable energy substations
- Grid interconnection projects
- Oil and gas facilities
- Mining operations
- Steel and cement plants
- Electrical protection retrofit and modernization projects



