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AVR SX440
AVR SX440
Supplier Info
[China Supplier]
Contact Person : Ms. Zhang Kelly
Tel : 0086-593-6596336
Fax : 0086-593-6059968
Product Detail
AVR SX440 1)CE and ISO Certification 2)AVR: SX460,SX440,AS440,MX321,MX341, R448,R449,R230,YH-8A,YH-12A,etc.

AVR SX440

SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) and forms part of the excitation system for a brushless alternator.

Technical specification

input

voltage

190-264V ac

frequency

50-60 Hz nominal

phase

1

wire

2

output

voltage

Max 90V dc at 207V ac input

Current

Continuous 4 A dc

Intermittent 6A for 10 secs

resistance

15 ohms minimum

regulation

+/- 1.0% (see note 1)

Thermal drift

0.04% per deg. C change in AVR ambient (note 2) 

Typical system response

AVR response

20 ms

Filed current to 90%

80 ms

Machine volts to 97%

300ms

External voltage adjustment

+/- 10% with 1 k ohm 1 watt trimmer(see note 3)

Under frequency protection

Set point

95% Hz(see note 4)

slope

170% down to 30 Hz

Unit power dissipation

12 watts maximum

Build up voltage

4 volts

AVR SX440

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