Stamford Mx321 Circuit Generator Avr For Generator

Technical specification

Sensing input

voltage

190 -264V ac max,2 or 3 phase

Frequency

50-60 Hz nominal

Power input (PMG)

Voltage

190-220V ac max.3 phase ,3 wire

current

3A/phase

Output

Voltage

Max 120V dc

Current

Continuous 3.7 A ( see note 1 )

Intermittent 6A for 10 secs

resistance

15 ohms minimum

regulation

+/- 0.5% RMS with 4% engine governing (see note 2 )

Thermal drift

0.02% per deg .C change in AVR ambient (note 3 )

Soft start ramp time

0.4 – 4 seconds

Typical system response

AVR response

10 ms

Filed current to 90%

80 ms

Machine volts to 97%

300 ms

External voltage adjustment

+/- 10% with 5 k ohm 1 watt trimmer (see note 4 )

Under frequency protection

Set point

95% Hz (see note 5 )

Slope

100-300% down to 30 Hz

Max Dwell

20% volts/s recovery

Unit power dissipation

18 watts maximum

Analogue input

Maximum input

+/- 5V dc (see note 6)

sensitivity

1v for 5% generator volts (adjustment )

Input resistance

1k ohm

Quadrature input

10 ohms burden

Max sensitivity

0.22 A for 5% droop OPF

Max input

0.33 A

Current voltage detection input

Set point

300V .time delay:1 sec(fixed )

CB trip coil volts

10 – 30 V dc

CB trip coil resistance

20-60 ohms

Over excitation protection

Set point

75 V dc

Time delay

8-15 seconds( fixed )

environmental

vibration

20 – 100 Hz 50mm/sec

100Hz – 2k Hz 3.3g

Operating temperature

-40 to +70 degree

Relative humdity 0-70 degree

95% (see note 7 )

Storage temperature

-55 to + 80 degree