TeSys Tera System

Overview

The TeSys Tera Motor Management System (TeSys Tera system) is part of the TeSys Active range of intelligent relays and motor starters. The TeSys Tera system is designed as a reliable building block for Intelligent Motor Control Centres (iMCCs) to provide complete protection, metering, control, and monitoring capabilities for single-phase or three-phase AC induction motors.

The TeSys Tera system is installed in the low voltage switchgear system and connects the higher level automation system through fieldbus network and the motor feeder.

TeSys Tera system:

• Covers conventional and advanced motor protection, metering, and monitoring in iMCC feeders into single, easy to configure, compact communicating module with a standalone HMI device.

• Provides protection controller for low voltage contactor-controlled motor starter feeders. 

• Provides flexible and modular motor management system for motors with constant speeds in low voltage applications.

A	LTMTCT/LTMTCTV sensor module
B	LTMT main unit
C	Start/Stop commands
D	LTMT expansion modules
E	PC running SoMove FDT container software with TeSys Tera DTM installed and equipped with standard web server capability
F	Programmable Logic Controller (PLC) or Distributed Control System (DCS)
G	Ethernet switch
H	LTMTCUF control operator unit

Functional Characteristics 

The TeSys Tera system manages: 

• Single-phase or three-phase AC induction motors up to 100 A.

• Single-phase or three-phase AC induction motors up to 810 A when using external current transformers.

• The connection between the control system and the motor feeder, increases plant availability.  

• Significant savings to the installation, commissioning, operation, and maintenance. 

• Numerical microprocessor equipped controller that allows to set parameters of the motor according to the application and process requirements. 

Key Benefits

The key benefits with use of advanced motor protection are:

• The TeSys Tera system covers all the load to monitor and protect the needs from the feeders to the critical process automation.

• The equipment is protected when advanced diagnostics, statistics, and alarms helps to anticipate unexpected production halts and minimize downtime.

• The TeSys Tera system is compact and a natural fit for the control panels with IEC or NEMA standards.

• The TeSys Tera system connectivity and access to real-time data provide key information to enhance the operation and security of the process while improving efficiency.

Features

The TeSys Tera system provides the following features:

• Configurable overload protection for class 5 to 40 based on current.

• Thermistor based motor protection.

• Imbalance, phase loss protection for current, and voltage input separately.

• Locked rotor and stall rotor protection.

• Electrical parameter monitoring, such as current, voltage, power, power factor, frequency, harmonics, temperature, and energy.

• Monitoring for different motor based parameters, such as operating hours, number of starts, run hours, and so on.

• TeSys Tera system can be used for motor and heater load application.

• Communication with PLC or DCS over EtherNet/IP, Modbus TCP/IP, Modbus RTU, or PROFIBUS DP protocol.

• Records trip data, event, self-diagnostic events with time stamp.

• Different starter configurations, such as overload, direct online (DOL), reverse direct online (RDOL), and star-delta.

• Independent protection, even if PLC or DCS connection is interrupted, TeSys Tera system still provides protection for the motor.

• Flexible protection, control, and communication options to suit any low voltage contactor-controlled motor starter application.

• Integrated push button and LED indicators reduce external components and wiring.

• Multiple communication protocols allow affordable integration to larger and complex substation monitoring and control systems.

• Reset push button is available on the LTMT main unit and the LTMTCUF control operator unit thereby reducing the need for one digital input to be configured as reset.

• Optional graphical LTMTCUF control operator unit is provided with the LTMT main unit for display of all metering, protection, and related parameters.

• Conformal coating (100-150 microns)on the PCB inside the LTMT main unit resists the corrosive environment, hazardous chemicals, dust, and so on.

Supported Industries

The TeSys Tera system supports the following industries and associated business sectors: