Protection Relays — Generator, Motor, Feeder & Transformer
Generator, motor, feeder and transformer protection
Numerical protection relays for generator, motor, transformer, feeder and busbar applications — ANSI-coded functions, IEC 61850 options and event recording.
Overview
Numerical protection relays safeguard generators, motors, transformers, feeders and busbars using ANSI-coded protection functions (e.g. 50/51 overcurrent, 27/59 under/over-voltage, 81 frequency, 32 reverse power, 87 differential). S.A.International supplies protection relays with IEC 61850 options for generation and distribution panels across Tamil Nadu.
Protection Relay Family
Numerical protection devices
Wide range of protection relays for power generation and distribution panels, with integrated metering and communications.
S.A.International supplies protection relays across Tamil Nadu — Chennai, Coimbatore, Madurai, Trichy, Tirunelveli, Salem and surrounding districts — with application engineering and commissioning support included. Genuine product, factory warranty, full DEIF technical access.
Frequently asked questions
Which ANSI functions do the protection relays support?
Common functions include 50/51 overcurrent, 27/59 under/over-voltage, 81 frequency, 32 reverse power, 40 loss-of-field and 87 differential, depending on the relay model and application.
Do the relays support IEC 61850?
Yes, IEC 61850 communication is available on selected numerical relays, alongside integrated metering and event recording.