MX 321 STAMFORD

Mô tả

Technical specification:

SENSING INPUT:
Voltage 190-264V ac max, 2 or 3 phase
Frequency 50-60 Hz nominal
POWER INPUT (PMG):
Voltage 170-220V ac max, 3 phase, 3 wire
Current 3A/phase
Frequency 100-120 Hz nominal
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 +/- 5 Vdc (see note 6)
Sensitivity 1v for 5% Generator Volts (adjustable)
Input resistance 1k ohm
QUADRATURE DROOP INPUT:
10 ohms burden
Max. sensitivity: 0.22 A for 5% droop 0PF
Max. input: 0.33 A
CURRENT LIMIT INPUT:
10 ohms burden
Sensitivity range: 0.5 – 1A
OVER VOLTAGE DETECTOR INPUT:
Set point: 300v. Time delay: 1 Sec (fixed)
CB trip coil volts: 10-30 vdc
CB trip coil resistance: 20-60 ohms
OVER EXCITATION PROTECTION:
Set point 75 V dc
Time delay 8-15 seconds (fixed)