stamford as440 AVR control governor:
AS440 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brush-less generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR.
| Sensing Input | Voltage | Jumper selectable 100-130 Vac 1 phase 190-264 Vac 1 phase |
| Frequency | 50-60 Hz nominal | |
| Power input | Voltage | 100-264 V ac 1 phase |
| Frequency | 50-60 Hz nominal | |
| Output | Voltage | 82 V d.c. @ 200 V a.c. |
| Current | Continuous 4A transient 7.5A for 10 secs | |
| Resistance | 15 ohms min (10 ohms min when input Volts is less than 175 ac) | |
| Regulation | ± 1.0% | |
| Thermal drift | 0.03% per deg. C change in AVR ambient | |
| Typical system response | AVR response | 20 ms |
| Filed current to 90% | 80 ms | |
| Machine Volts to 97% | 300 ms | |
| External voltage adjustment | ±-10% with 1kohm 1 watt trimmer Increasing resistance lowers voltage. | |
| Uuder frequency protection | Set point | 94 -98% Hz |
| Unitpower dissipation | 12 watts maximum | |
| Build up voltage | 4 Volts @ AVR terminals | |
| Analogue voltage | Maximum input | ±5 Vdc |
| Sensitivity | 1V for 5% Generator Volts (adjustable) | |
| Input resistance | 1k ohm | |
| Quadrature droop input | 10 ohms burden | |
| Max. sensitivity: 0.07 A for 5% droop 0PF | ||
| Max. input: 0.33 A | ||
| Over excitation protection | Set point | 65 V dc |
| Time delay | 10-15 seconds (fixed) | |
| Environmental | Vibration | 20-100 Hz |
| 100Hz – 2kHz | ||
| 50mm/sec | Operating temperature | 40degree under zero to 70 degree |
| 3.3g | Relative humidity 0-70℃ | 95% |
| Storage temperature | Storage temperature -55 to +80C | |
Packaging: Standard Carton Packing
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