The R448 Automatic Voltage Regulator (AVR) is an advanced electronic component that provides closed loop control of the generator output voltage.
The Automatic Voltage Regulator (AVR) is an advanced electronic component that provides closedloop control of the generator's output voltage.
Normal AVR supply power:2 auxiliary windings (X1, X2, ans Z, Z2). Shunt supply: 150V - 5060Hz. Rated overload current:10A, 10s.
Electronic built- in )overload, short circuit, and loss of sensing) protecting: If excitation current raises over 10 amps for more then 10 seconds, excitation current will drop automatically to about 1A.
To reset AVR protection, the generator must be stopped )or by cutting supply voltage to the AVR).
Protection of power inputs by fuses F1
Voltage sensing: 5VA insulated transformer with input voltage taps at: Terminals 0 - 110V = 95 to 140V
Terminals 0 - 220V = 170 to 260V
Terminals 0 - 380V = 340 to 520V