Balser AVR AVC125-10B1

The AVC125-10B1 regulate the level of excitation supplied to the field of a conventional, brushless, synchronous generator. Regulation is achieved by sensing the generator output voltage, converting it to a dc signal, and comparing the signal to a reference voltage.

An error signal is developed and used to control the dc field power in order to maintain a constant generator output. Each regulator includes frequency compensation with selectable slope, inverse-time overexcitation shutdown, buildup circuitry, single- or three-phase voltage sensing, single-or three-phase shunt or permanent magnet generator (PMG) power input, parallel droop compensation, and an accessory input.

The accessory input provides compatibility with devices such as var/power factor controllers or excitation limiters.

Specification

Power Input
Configuration: 1-phase or 3-phase
Frequency: 50 to 400 Hz
Voltage Range
AVC63-12: 90 TO 153 VAC
AVC125-10: 180 to 264 VAC
Maximum Continuous Burden
AVC63-12: 1, 092 VA
AVC125-10: 1, 750 VA
See Options for Inrush Current Reduction
Module information.
Sensing Input
Configuration: 1-phase or 3-phase
Burden: <1 VA per phase
Voltage Range
Option A: 90 to 139 VAC
Option B: 180 to 264 VAC
Nominal Frequency
Option 1: 50 or 60 Hz
Option 2: 400 Hz
(See Table 2 for style/option information. )
Accessory Input
Voltage Range: ± 3 VDC
Power Output
Maximum Continuous Output
AVC63-12: 12 ADC at 63 VDC
AVC125-10: 10 ADC at 125 VDC
10 Second Forcing Output
AVC63-12: 24 ADC at 125 VDC
AVC125-10: 20 ADC at 250 VDC
Minimum Field Resistance
AVC63-12: 5.25 Ω
AVC125-10: 12.5 Ω
Regulation Accuracy
± 0.5% of voltage setpoint, average response
Voltage Drift
± 0.5% variation for a 40° C (104° F) change
Response Time<4 ms