VR9032A - In the event of a fault in the excitation system resulting in an abnormal increase in the field current, violent instability may occur in the generator system or the Polar Angle factor of Synchronous Motors may become excessively advanced. A fault in the field circuit such as shorted turns may also generate this condition if the Exciter does not operate at constant current. In this case,
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VR9032A - In the event of a fault in the excitation system resulting in an abnormal increase in the field current, violent instability may occur in the generator system or the Polar Angle factor of Synchronous Motors may become excessively advanced. A fault in the field circuit such as shorted turns may also generate this condition if the Exciter does not operate at constant current. In this case, the actual excitation may be lower than required, causing desynchronization in motors and motorization in generators. This relay is therefore an important addition to excitation systems.

• Overcurrent protection
• True RMS current reading.
• Four ranges of actuation delay.
• 0 to 5 VDC True RMS signal output proportional to the field current.
• “Test” and “Reset” buttons.
• LED status indications.
• 110 VAC or 220 VAC power supply.
• Voltage signal output proportional to the P.F. for measurement.
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