Automatic Voltage Regulator (AVR)

3 Phase 30KVA Generator Automatic Voltage Regulator AVR AS440

Model Number: AS440
Origin: China
Warranty: 1 year
In stock: yes
Product description: The AS440 (+ Kit replaces SX440) is a half wave phase controlled thyristor type Automatic Voltage Regulator AVR and forms part of the excitation system for a brushless generator The design employs
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3 Phase 30KVA Generator Automatic Voltage Regulator AVR AS440

The AS440 ( + Kit replaces SX440 ) 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. 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 +/- 1.0%

More detailed specification download click here

Sensing Input	Voltage	Jumper selectable 100-130 Vac 1 phase 190-264 Vac 1 phase
Sensing Input	Frequency	50-60 Hz nominal
Power input	Voltage	100-264 V ac 1 phase
Power input	Frequency	50-60 Hz nominal
Output	Voltage	82 V d.c. @ 200 V a.c.
	Current	Continuous 4A transient 7.5A for 10 secs
	Resistance	15 ohms min (10 ohms min when input Volts is less than 175 ac)
Regulation	± 1.0%
Thermal drift	0.03% per deg. C change in AVR ambient
Typical system response	AVR response	20 ms
	Filed current to 90%	80 ms
	Machine Volts to 97%	300 ms
External voltage adjustment	±-10% with 1kohm 1 watt trimmer Increasing resistance lowers voltage.
Uuder frequency protection	Set point	94 -98% Hz
Unitpower dissipation	12 watts maximum
Build up voltage	4 Volts @ AVR terminals
Analogue voltage	Maximum input	±5 Vdc
	Sensitivity	1V for 5% Generator Volts (adjustable)
	Input resistance	1k ohm
Quadrature droop input	10 ohms burden
	Max. sensitivity: 0.07 A for 5% droop 0PF
	Max. input: 0.33 A
Over excitation protection	Set point	65 V dc
Over excitation protection	Time delay	10-15 seconds (fixed)
Environmental	Vibration	20-100 Hz
		100Hz – 2kHz
50mm/sec	Operating temperature	40degree under zero to 70 degree
3.3g	Relative humidity 0-70°C	95%
	Storage temperature	Storage temperature -55 to +80C