Relay-to-Relay Digital Logic Communication for Line Protection
The new, patented relay-to-relay logic communication technique repeatedly sends the status of eight programmable internal relay elements, encoded in a digital message, from one relay to the other
Life cycle services for protection and control relays
By storing the protection settings and configuration files online through our cloud service, they can be easily restored in the event of malfunction, repair or replacement of the relay.
SEL-700 Series Protective Relays
This relay provides standard dual-slope differential protection with harmonic blocking and restraint for most two-, three-, and four-winding transformers. It offers as many as three independent
Teleprotection Solutions
Teleprotection is the use of communications for power system protection applications. The most common is transmission line protection. Teleprotection channels, sometimes referred to as pilot
Time-Domain Line Protection
Time-domain line protection provides ultra-high-speed trip times, superior security, and simplicity, with or without dedicated communications lines.
Power Utility Teleprotection
Transporting teleprotection protective relays signals between substations is a critical application for power utilities. These signals help manage power grid load and protect power equipment from
Protective Relays
SEL software offers powerful tools for configuring protective relays, analyzing event reports, and visualizing other power system data. Protect critical components in your power system with a wide
Basic protection relay knowledge
A fast and selective arc fault mitigation for air-insulated LV & MV switchgear and Relion protection and control relays and sensor technology protect staff and plant facilities for many years.
Power System Protective Relays: Principles & Practices
Protective relays and devices have been developed over 100 years ago to provide “lastline”of defense for the electrical systems. They are intended to quickly identify a fault and isolate it so the balance of
Teleprotection Connectivity for Differential and Distance Relays
Distance protection relays need to exchange information and Differential Teleprotection systems require a reliable and secure communications network to ensure reaction times within milliseconds to
Micro-Modular & Edge DC
Prefabricated micro-modular data centers and edge pods, scalable from 5 to 50 racks, ready for 5G and edge AI workloads.
Immersion & Liquid Cooling
Single-phase immersion cooling tanks and direct-to-chip liquid cooling switches, achieving PUE below 1.1.
AI Servers & Racks
GPU-accelerated AI servers, high-density server racks, and network cabinets optimized for AI/ML workloads.
DCIM/EMS & Cable Bridge
Real-time data center infrastructure management, plus overhead cable trays and fiber bridges for structured cabling.