AVR MX341 Automatic Voltage Regulator for Stamford Diesel Generator
$85.00
Substitute Stamford MX341 AVR
Availability: 19 in stock
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General description
The AVR MX341 VOLTAGE REGULATOR is a two-phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the VOLTAGE REGULATOR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system.
The AVR MX341 senses the voltage in the main generator winding and controls the power fed to the exciter stator and hence the main rotor to maintain the generator output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.
Details
| Sensing Input | Â Voltage | Â 190-264V ac max, 1 phase, 2 wire | |
| Â Frequency | Â 50-60 Hz nominal | ||
| Â Power Input (PMG) | Â Voltage | Â 140-220V ac max, 3 phase, 3 wire | |
| Â Current | Â 3A/phase | ||
| Â Frequency | Â 100-120 Hz nominal | ||
| Â Output | Â Voltage | Â Max 120V dc | |
| Â Current | Â Continuous 2.7 A | ||
| Intermittent 6A for 10 secs | |||
| Â Resistance | Â 15 ohms minimum | ||
| Â Regulation | Â +/- 1% | ||
| Â Thermal Drift | Â 0.02% per Deg. C change | Â 0.03% per Deg. C change | |
| In AVR ambient | In AVR ambient | ||
| Â Soft Staret Ramp Time | Â 3 seconds | ||
| Â Typical system response | Â AVR response | Â 10ms | |
| Â Filed current to 90% | Â 80 ms | ||
| Â Machine Volts to 97% | Â 300ms | ||
| Â External voltage adjustment | Â +/-10% with 1k ohm 1 watt trimmer | ||
| Â Under frequency protection | Â Set point | Â 95% Hz | |
| Â Slope | Â 170% down to 30 Hz | ||
| Â Unit power dissipation | Â 12 watts maximum | ||
| Â Analogue Input | Â Maximum input | Â +/- 5 Vdc | |
| Â Sensitivity | Â 1v for 5% Generator Volts (adjustable) | ||
| Â Input resistance | Â 1k ohm | ||
| Â Quadrature Droop Input | Â 10 ohms burden | ||
| Â Max. sensitivity: 0.22 A for | Â Max. sensitivity: 0.07 A for | ||
| 5% droop 0PF | 5% droop 0PF | ||
| Max. input: 0.33A | Max. input: 0.33A | ||
| Â Environmental | Â Vibration | Â 20-100 Hz,50mm/se | |
|  100Hz – 2kHz, 3.3g | |||
| Â Operating temperature | Â -40 to +70 Deg. | ||
| Â Relative Humidity 0-70 Deg. | 95% | ||
| Â Storage temperature | Â -55 to +80 Deg. | ||
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