1.avr generator AS440
AS440 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brushless generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR.
2.AS440 Technical specification:
Technical specification | |
Sensing input | |
voltage | Jumper selectable.100-130 Vac 1 phase or 190-264 Vac 1 phase |
frequency | 50-60 Hz nominal |
Power input | |
Voltage | 100-264 V ac 1 phase |
frequency | 100-120 Hz nominal |
output | |
voltage | 82 V d.c. @ 200 V a.c. |
Current | Continuous 4 A dc. transient 7.5A for 10 secs. |
resistance | 15 ohms min |
regulation | +/- 1.0% (see note 1) |
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% | 300ms |
External voltage adjustment | +/- 10% with 1 k ohm 1 watt trimmer |
Under frequency protection | |
Set point | 95% Hz(see note 4) |
Unit power dissipation | 12 watts maximum |
ANALOGUE INPUT | |
Maximum input | +/- 5V dc |
Sensitivity | 1v for 5% Generator Volts (adjustable) |
Input resistance | 1k ohm |
QUADRATURE DROOP INPUT | |
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) |
Build up voltage | 4 volts @ AVR terminals |
3.Other AVR
STAMFORD AVR | LEROY SOMER | General AVR | Basler series | MeccAlte series | Marelli series |
AS440 | R230 | GAVR-8A | EA04C | EA06A/UVR6 | M40FA640 |
SX440 | R250 | GAVR-12A | EA05A | SR7 | M16FA655A |
SX460 | R438 | GAVR-15A | EA08A | ||
MX341 | R448 | 50A-board | EA15A | ||
MX321 | R449 | EA350 | |||
AS480 | R450 |
