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Stamford Power Ac Brushless Generator Automatic Voltage Regulators Avr SX460
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automatic ac voltage regulator,
automatic voltage regulator circuit
Stamford power ac brushless Generator automatic voltage regulators avr SX460
- Stability selection & adjustment
- Under frequency roll off adjust
- Overall 175*150*65
- Weight 0.39kg
SX460 is a half-wave phase- controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator.
In addition to regulating the generator voltage, the AVR circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator.
Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. Which is linked with the main stator windings and the exciter field windings to offer closed loop control of the output voltage with load regulations of +/- 1.5%
Under frequency roll off adjustment
|Parameter sheet of Standford AVR SX460|
|Input||Voltage||Jumper selectable 95-132V ac or 190-264V ac|
|Frequency||50-60 Hz nominal|
|Output||Voltage||max 90V dc at 207V ac input|
|Current||continuous 4A dc, intermittent 6A for 10 secs|
|Resistance||15 ohms minimum|
|Thermal Drift||0.05% per deg. C change in AVR ambient|
|Typical system response||AVR response||20ms|
|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|
|Slope||170% down to 30 Hz|
|Unit power dissipation||12 watts maximum||10 watts maximum|
|Build up voltage||4 Volts @ AVR terminals|
|100Hz - 2kHz, 3.3g|
|Operating temperature||-40 to +70 Deg. C|
|Relative Humidity 0-70 Deg. C||95%|
|Storage temperature||-55 to +80 Deg. C|
|Voltage Founded||when the remanence is above 4V25Hz, the voltage can be founded automatically.|
|Power Input||AC95 ~ 132V / 190 ~ 264V AC 50/60Hz.|
|Output||Voltage||90V DC maximum (when the input AC 207V pm)|
|6A for 10s (intermittent)|
|Frequency Compensation||following the built-in engine RPM drops, the frequency of output voltage drops to protect circuit.|
|Semiconductor power devices||In NXP Chinese package|
|Main power resistors||British WELLWIN original|
|Adjusting potentiometer||U.S. BOURNS original|
|Chip capacitors||South Korea's Samsung|
|Glue||PU environmental protection, at the same time does not change the electrical properties of high-temperature and high-temperature characteristics|
|More advantages||1.After the the strict fully functional and performance testing, and high-temperature aging, each batch of test reliability ratio of 3%. The parameters of each board are rigorously tested and adjusted, fully compatible with original products
2.High stability of the key components of the product, we use a low temperature coefficient components to ensure product
3.Original two transistor, and 2 ounces of large-current circuit board (the majority of the conventional circuit board is 1 ounce) to ensure high reliability in a high-power semiconductor element
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