Stamford power ac brushless Generator automatic voltage regulators avr SX460
Stability selection & adjustment
Under frequency roll off adjust
SX460is 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
Jumper selectable 95-132V ac or 190-264V ac
50-60 Hz nominal
max 90V dc at 207V ac input
continuous 4A dc, intermittent 6A for 10 secs
15 ohms minimum
0.05% per deg. C change in AVR ambient
Typical system response
Filed current to 90%
Machine Volts to 97%
External voltage adjustment
+/-10% with 1 k ohm 1 watt trimmer
Under frequency protection
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
-40 to +70 Deg. C
Relative Humidity 0-70 Deg. C
-55 to +80 Deg. C
when the remanence is above 4V25Hz, the voltage can be founded automatically.
AC95 ~ 132V / 190 ~ 264V AC 50/60Hz.
90V DC maximum (when the input AC 207V pm)
6A for 10s (intermittent)
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
U.S. BOURNS original
South Korea's Samsung
PU environmental protection, at the same time does not change the electrical properties of high-temperature and high-temperature characteristics
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
Shipping Policy Delivery Time:
USA, Canada ,Australia, West and North Europe 4-7 Business Days, Other country 5-8 Business Days
Shipping address:Please, make sure to provide us with correct, precise, and detailed shipping Address.
Items will be shipped within 1 to 3 business days upon payment received or cleared.
If you don't receive items over 30 business days , please notify us.
Return Policy We appreciate your business and offer an instant 7 days return policy.( 7 days after receive the item). The returned item has to be in its original condition. We are able to refund your money without shipping cost.