Description
THE Pextron TST Three-Phase Supervisory Relay is a microprocessor-based digital protection device, developed for applications in three-phase electrical systems. With multiple ANSI protection functions, MODBUS® RTU communication (PST model) and robust design, it offers high reliability and ease of integration into industrial automation systems.
Main Technical Characteristics:
-
ANSI Protection Functions:
-
27: Undervoltage.
-
47: Phase sequence.
-
59: Overvoltage.
-
60: Voltage imbalance.
-
-
Inputs and Outputs:
-
Inputs for three-phase voltage measurement.
-
Relay outputs for alarm, trip and self-check (PST model).
-
