Product Attribute:
Voltage:190-264v
Applicationt:
auto
Production Description:
MX32,three phase,stamford voltage regulator and the forms part of excitation system for brush-less generator.
Stamford Voltage Regulator mx321
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
Sensing Input
Voltage:190--264VAC,2 or 3 phase
Frequency:50-60Hz nominal
Power Input (PMG)
Voltage:170-220VAC,3 phase , 3 wire
Current:3A/phase
Frequency:100-120Hz
Out put
Voltage:max120VDC
Current:continuous 3.7A , intermittent 6A for 10 secs
Resistance:15 Ω minimum
Regulation:+/-0.5% RMS with 4% engine governing
Voltage build-up :residual voltage at avr terminal ≥5VAC
External Voltage Adustament:+/-10% with 1k ohm 1 watt trimmer
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