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automatic ac voltage regulator,
avr automatic voltage regulators
AC Power Automatic Voltage Regulators Stamford Alternator avr SX450 for Diesel Genset
Stamford alternator avr SX450 ac power generator for diesel genset , automatic voltage Regulators
SX450 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator.
The Propose employs surface mount technology (SMT) for high integration of features in a minute footprint AVR. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. The control and voltage sensing circuits have separate terminals, allowing the excitation power to be resulting directly from the stator winding for necessary applications or from an auxiliary winding if sustained short circuit performance is essential. 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%, Which added the big rated power is based in SX440.
* Stability adjustment
* Under frequency roll off adjustment
* Trim adjustment
* Optimum response selection
* Droop adjustment
|Frequency||50-60 Hz nominal|
|Output||Voltage||max 90V dc at 207V ac input|
|Current||continuous 4A dc, intermittent 12A for 10 secs|
|Resistance||10 ohms minimum|
|Thermal Drift||0.04% 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|
|Build up voltage||4 Volts @ AVR terminals|
|Analogue Input||Maximum input||±5V dc|
|Sensitivity||1v for 5%|
|Input resistance||1k ohm|
|Quadrature Droop Input||10 ohms burden|
|Max. sensitivity: 0.07 A for 5% droop 0PF|
|Max. input: 0.33A|
|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|
1. Guarantee:1 year after selled.
2. During guarantee,the items share free repairs or replacement.
3. Customer is responsible for the freight come-and-go,and the custom tax.
4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together.
5. To save the cost,pls send the item back without packing.
6. Pls provide the defective appearance and related invoice number.
7.We do not repair or replace item with an expired warranty.
8.All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email or give us a call any time.