GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 3 Paramters/Functions
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Transformer Overtem perature Detection
Those Innovation Seri es products that are part of a system con taining a transformer
provide the capability to detect transformer overtemperature condition. The Xfrmr
over temp trip fault and the Xfrmr temp hot alarm trigger on a signa l that is a digital
input from the transfor mer overtemperature fault circuit. Either the fault or alar m
occurs when the transfor mer overtemperature circu it is open.
Function inputs
The following table specifies the input parameters of the Transformer
Overtemperature Detection function.
Parameter Description
Xfrmr OT fault sel Selects t he source of the tr ansformer over temperature
circuit.
Function configuration
The following table specifies the configuration parameters of the Transformer
Overtemperature Detection function.
Parameter Description
Xfrmr OT fault mode Speci fies whether th e overtemperat ure condition tr iggers
a fault or an alarm.
Faults and alarms
The following table sp ecifies the faults and alarms tha t the Transformer
Overtemperature Detection function declares.
Fault/Alarm Description
Xfrmr over t emp Occurs when the state of the tr ansformer
overtemper ature circ uit is False, indicating that the circ uit
is open, and parameter Xfrmr OT fault mode is set to Trip
flt.
Xfrmr temp hot Occurs when th e state of the tran sformer
overtemper ature circ uit is False, indicating that the circ uit
is open, and parameter Xfrmr OT fault mode is set to
Alarm fault.
Function description
The parameter Xfrmr OT fault sel generally selects digital inputs (Digital input 1, …,
Digital input 6). The Transformer Overtemperature Detection may be disa bled by
setting Xfrmr OT fault sel equal to Unused.