Protection Relays/IED

Protection IEDs (Intelligent Electronic Devices)

Protection IEDs are the core of modern substation automation systems. These microprocessor-based devices perform real-time monitoring, protection, and control of electrical assets such as transformers, feeders, motors, and busbars.

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Types of Protection IEDs:

Feeder Protection Relays – designed for medium-voltage feeders and transformers.
Transformer Protection Relays – provide differential and overcurrent protection for power transformers.
Motor and Generator Protection – safeguard rotating machines from faults and abnormal conditions.
Busbar Protection – offering fast and selective protection for complex busbar configurations.
Distance and Line Protection – used in transmission networks for fault location and isolation.
Multifunction IEDs – combine protection, control, and monitoring in a single device, supporting IEC 61850 and legacy protocols.

Key Features:

IEC 61850 Ed. 2.1 compliance
Built-in HMI for local operation
Cybersecurity and remote access capabilities
Integration with SCADA and EMS systems