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r220 r450 mx341 mx450 sx440 avr power electronic automatic voltage regulator switch diesel generator spare parts
SENSING INPUT | Voltage | 190-264V ac | |||||||
Frequency | 50-61 Hz nominal | ||||||||
phase | 1 | ||||||||
Wire | 2 | ||||||||
OUTPUT | Voltage | max 90V dc at 207V ac input | |||||||
Current | continuous 4A dc, intermittent 6A for 10 secs | ||||||||
Resistance | 15 ohms minimum | ||||||||
REGULATION | +/- 1.0% | ||||||||
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% | 300 mS | ||||||||
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 | +/- 5 Vdc | |||||||
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 | |||||||||
ENVIRONMENTAL | Vibration | 20-100 Hz,50mm/se | |||||||
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 | ||||||||
SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.
The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output
voltage with load regulation of +/-0.5%.
AI POWER is the professional manufacturer of power generator, light tower and reefer genset in China. We provides a complete line of generators for commercial,industrial and residential application.We specialize in providing a wide range of well known and trusted brands of diesel generators, supplying generators from 5kw to 2000kw at competitive prices.
Besides generators, we also product the refere product incldue lighting towers, reefer gensets and generator spareparts. At the same time, we also provide the reference electrical products, include ATS.
Mr. Bruce Song
Xiamen Ai Power Technology Co., Ltd.
Power System Supplier- Generator Sets, Lighting Tower, Air Compressor & Switchgear.
Add:B15 Unit 502-3, No. 59, Chengyi North Street, Jimei District, Xiamen City, China
