Protection relays — ABB Group
The main purpose of protection relays is to observe the electrical grid and make protection decisions autonomously so that flow of electricity passes safely through the distribution network. ABB''s smart
Measuring and monitoring relays
ABB relays are designed to detect overloads, temperature, liquid and other potentially damaging fluctuations. Choose from a large range of products that provide reliable protection, cost savings and
Protection, Distribution & Control | ABB Electrification U.S.
ABB''s Electrical Protection, Distribution & Control products include medium and low voltage switchgear, grid hardware, protection and control relays, switchboards, power and lighting panelboards, busway,
Protection relays
Numerical relays are based on the use of microprocessors. The first numerical relays were released in 1985. A big difference between conventional electromechanical and static relays is how the relays
Electronic relays and controls | Products | ABB
ABB has the industry''s most comprehensive range of electronic timers, measuring and monitoring relays, interface relays and power supplies – helping customers source all their critical components
Primary Protection Relays | ABB
ABB''s protection and control relays are available for original equipment manufacturers (OEM), panel builders and Engineering, Procurement and Construction (EPCs) partners to incorporate in their own
Voltage protection and control
Voltage protection is the most basic protection in a power grid. The objective of a protection scheme is to keep the power system stable by isolating only the components that are under fault, whilst leaving
Motor protection and control
ABB Electrification Smart Power provides the defense-in-depth security required for mission-critical applications and industries.
Relays-Online
ABB Relays-Online makes finding, selecting, ordering, and tracking of your next digital substation product order quick and easy. The modular e-business platform is the one place where you will find
Voltage relays (CV, CVD, CVQ)
Low voltage protection A low voltage condition will prevent motors from reaching their rated speed on starting or cause them to lose speed and draw heavy overload current.
Optical Power Meters & Sources
High-precision power meters (Ge/InGaAs) and stabilized light sources for insertion loss and return loss testing.
OTDR & Fiber Characterization
Full-featured OTDR, fiber OTDR testers, and modular OTDR test modules for network deployment and troubleshooting.
OSA & Eye Diagram Analyzer
High-resolution OSA for DWDM and eye diagram testers for signal integrity validation.
BERT & Endface Inspection
BERT up to 800G, fiber endface inspection probes, and extinction ratio meters for comprehensive testing.