Product category:
Drives, motors and power transmission, couplings, clutches
News Release from: Schneider Electric | Subject: Model T intelligent motor protection relays
Edited by the Manufacturingtalk Editorial
Team on 22 August 2007
'Intelligent' relays protect electric
motors
Intended to cut plant downtime and reduce maintenance costs, intelligent motor protection relays include thermal overload, motor temperature monitoring, earth fault and phase imbalance detection.
Intended to cut plant downtime and reduce maintenance costs, the TeSys Model T intelligent motor protection relays have been introduced by Telemecanique, a brand of Schneider Electric The simplicity and ease of use TeSys Model T offers a range of protection functions and open communications options
This article was originally published on Manufacturingtalk on 18 Jun 2008 at 8.00am (UK)
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The relays can be used with motors up to 800A and offer user configurable protection functions that include the following.
* Thermal overload.
* Motor temperature monitoring.
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* Earth fault and phase imbalance detection.
* Long start and stall detection.
* Load variation monitoring.
The above functions are complemented by continuous monitoring of key operating parameters to give users a comprehensive real-time view of motor operation.
In addition, Model T relays also store details of motor operational history, which are used to aid the analysis of the current motor situation and to allow future system performance to be anticipated.
The extensive functionality of TeSys Model T relays means that their operation can be accurately matched to the needs of the application.
This ensures not only that plant and motors are fully protected, thereby helping to prevent costly and disruptive damage to equipment, but also guards against unnecessary time-wasting nuisance trips.
Further, the information collected by the relays aids and speeds fault finding, thereby helping to minimise plant downtime if a trip should occur.
TeSys Model T motor protection relays provide support for Modbus, CanOpen, Profibus and DeviceNet fieldbus systems without the need for auxiliary communications modules or gateways.
This makes them particularly easy to integrate with modern automation systems of all types.
Other features provided by these versatile intelligent relays include the following.
* Pre-programmed motor control functions for standard applications.
* Uncommitted digital input and outputs that can be used to provide simple customised control functions without the need to use additional hardware.
An optional expansion module extends their functionality to add voltage, power and power factor measurement, plus additional control functions.
Despite their wide range of features, Telemecanique TeSys Model T intelligent motor protection relays are easy to set up using an operator control unit and the user-friendly configuration software that is included in the range.
* About Schneider Electric - Schneider Electric is the world's power and control specialist.
Through its world-class brands, Merlin Gerin, Square D and Telemecanique, Schneider Electric manufactures and markets a comprehensive range of products and services for the residential, buildings, industry, and energy and infrastructure markets.
Schneider Electric has 105,000 employees worldwide, operations in 190 countries and recorded sales of EUR 13.7 billion in 2006 through 13,000 sales outlets.
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