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How does the count of the square switched-current sum works? -
If the power transformer is in No-load condition, does the AVR indicate the secondary winding voltage, or does it show a message?
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Can the AVR be used to regulate a transformer with two secondary windings?
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If the AVR does not have the optional 3 (Position measurement), will it switch the tap automatically according to the load voltage level?
AVR
The Automatic voltage regulator - AVR is a device built to regulate load voltage in order to keep it within a specific range of values obtained through parameters programmed by the user. It measures the transformer output voltage and load current. The main goal is: To keep the system voltage at a pre-established level, To compensate the line voltage drop, To protect the on-load tap changer (OLTC) against over-voltages and over-currents (depending on the option) And also to measure the OLTC position and control it.
