VOLTAGE REGULATOR MFC-500R MODEL

The Voltage Regulator was developed by Licht for the automatic control of power transformers with on-load tap changers.

In order to regulate the voltage at the load, the voltage regulator issues “raise” and “lower” commands to the transformer’s associated tap changer, effectively adjusting its secondary voltage. Given voltage and current samples at the source, user-programmable parameters such as the line’s resistance and reactance allow the regulator to estimate the voltage at the load.

The Voltage Regulator then controls the tap changer in order to keep the load voltage within an optimum interval, also activating alarms in the events of overcurrent, overvoltage and undervoltage. When overvoltage, overcurrent or undervoltage occur, the Regulator Relay will also be inhibited and will not command TAP changes.

Indicate the desired reference:

ADDITIONAL INFORMATION:

Power supply: 80-265 Vdc/Vac

Full galvanic isolation

Available formats: 96 x 48 mm, 96 x 96 mm (Mod. MFC-500)

Panel assembly or 35 mm DIN rail (Mod. MFC-202)

06 Relays (raise and lower tap, overvoltage, undervoltage and overcurrent blocking, power suplly fault)

02 Relays for minimum and maximum position

01 Position readout input (on load tap changer)

01 VAC input (PT)

01 AC input (CT) (internal or external CTs)

08 Regulation set

03 Configurable current loop (0-1, 0-5, 0-10, 0-20, 4-20 mA)

RS485 (MODBUS and DNP 3.0)

TCP-IP (MFC-500)

Memory of the total number of tap changes and minimum and maximum position (MFC-500)

USB (MFC-500)

Windows software for remote access, allows configuration and total control of the equipment (MFC-500)