Answer
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Feb 26, 2025 - 04:27 AM
To adjust the over and under frequency set values on the SmartGen HFT300 Frequency Test Relay, follow these steps:
1. Locate the Over Frequency Potentiometer and Under Frequency Potentiometer on the device. These are used for adjusting the set values.
2. Turn the Over Frequency Potentiometer clockwise to increase the over frequency set value. The range for adjustment is between 100% and 120% of the rated frequency value.
3. Turn the Under Frequency Potentiometer clockwise to increase the under frequency set value. The range for adjustment is between 80% and 100% of the rated frequency value.
4. Set the desired values by adjusting the potentiometers according to your requirements.
Note: The rated frequency value can be programmed in the device's parameters. By default, the rated frequency is set to 50Hz.
Please refer to Table 5 in the user manual for more information on the location and function of the potentiometers.
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