Description
CATERPILLAR
ITEM NUMBER: 314-7755
CDVR DIGITAL VOLTAGE REGULATOR
REV.: B
CONTROL POWER INPUT: 18-30 VDC, 5 VA
1 PHASE POWER INPUT: 100-280 VAC, 50-400HZ
3 PHASE POWER INPUT: 80-280 VAC, 50-400HZ
SENSING INPUT: 90-600VAC NOM, 50/60HZ / 1 OR 3 PHASE, 0.5VA
PARALLELING INPUT: 5A AC, 50/60HZ, 0.2VA
ACC INPUT: -10 TO 10VDC, 0.0012VA
OUTPUT: 63 VDC, 12A; 125VDC, 10A
FILE NO.: E97035 LR23131
E02196122
9368100105
PAT. NO.: 5,294,879
The Caterpillar 314-7755 REV B is a CDVR digital voltage regulator for the automatic voltage regulator system on generator sets, where it controls alternator excitation to keep switchboard voltage stable. It runs on 18-30 V DC control power, accepts 1 or 3 phase sensing at 90-600 V AC nominal, and provides an output of 63 V DC at 12 A or 125 V DC at 10 A. A 5 A AC paralleling input and a -10 to 10 V DC accessory input are also provided. This regulator is in used condition.
Key Features
✓ CDVR digital voltage regulator, REV B
✓ Control power input 18-30 V DC, 5 VA
✓ Sensing input 90-600 V AC nominal, 1 or 3 phase
✓ Paralleling input 5 A AC, 50/60 Hz
✓ Output 63 V DC 12 A or 125 V DC 10 A
Marine Applications
✓ Main diesel generator excitation control
✓ Paralleled generator sets on a common busbar
✓ Auxiliary and harbour generator sets
✓ Emergency generator voltage regulation
Technical Support
Prota Marine provides technical support, repair and onboard installation for the CDVR digital voltage regulator and the wider automatic voltage regulator system. Our engineers handle fault diagnosis on excitation, sensing and paralleling circuits, and give commissioning support when the regulator is brought into service with the generator.
