Model 98 Transformer Temperature Controller
The MODEL 98 Digital Temperature Controller can continuously monitor up to three thermocouples in the windings of a dry type transformer. Based on winding temperatures, the controller has the capability to perform a myriad of functions.
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- The controller can display the current winding temperature of each winding and illuminate corresponding LEDs on the controller face that identify which winding temperature is being displayed. It also stores and displays the highest winding temperature, identifying which winding caused that high temperature.
- The controller can operate relays that activate the fans or blowers, sound the high temperature alarm, or actuate a high temperature trip. The controller compares the highest of the three winding temperatures to temperature set points that are stored in the controller's memory. These set points can be reviewed from the controller or through the POWERLOGIC ® System Manager Software (SMS-3000).
- The controller can interface as part of a complete POWERLOGIC power monitoring and control system manufactured by Square D. The controller can transfer real-time information to the POWERLOGIC system about the winding temperatures, status of the relays, and the temperature set points contained with the controller's memory. Once in the POWERLOGIC system, the information can be used in tables, graphs, and reports.
- At any time, you can test the controller to check its operation. However, the controller continuously performs internal checks and will display error codes if a problem with its operation is detected.
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