- Contact Person : Ms. Zhang Kelly
- Company Name : Fuan Yuheng Electronic Co., Ltd.
- Tel : 0086-593-6596336
- Fax : 0086-593-6059968
- Address : Fujian,fuan,Qinxiyang industry zone
- Country/Region : China
- Zip : 355000
Voltage Regulator
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Voltage Regulator
SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) and forms part of the excitation system for a brushless alternator.
Technical specification | |
input | |
voltage | 190-264V ac |
frequency | 50-60 Hz nominal |
phase | 1 |
wire | 2 |
output | |
voltage | Max 90V dc at 207V ac input |
Current | Continuous 4 A dc Intermittent 6A for 10 secs |
resistance | 15 ohms minimum |
regulation | +/- 1.0% (see note 1) |
Thermal drift | 0.04% per deg. C change in AVR ambient (note 2) |
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(see note 3) |
Under frequency protection | |
Set point | 95% Hz(see note 4) |
slope | 170% down to 30 Hz |
Unit power dissipation | 12 watts maximum |
Build up voltage | 4 volts |
Voltage Regulator
