Description
CATERPILLAR
VR6
AUTOMATIC VOLTAGE REGULATOR
2022122
SENSING INPUT:180-280 VAC 50/60HZ
CT INPUT: 1 OR 5 AAC 50/60HZ
ACC INPUT: +/-3 VDC
202-2122
The Caterpillar VR6 (202-2122) is an automatic voltage regulator for marine generator sets, serving the excitation and voltage control system of the onboard power supply. It compares measured generator voltage with its reference and adjusts excitation to keep output stable through changing load. Sensing input covers 180-280 V AC at 50/60 Hz, a current transformer input accepts 1 or 5 A AC, and an accessory input is rated +/-3 V DC. The regulator is offered in used condition.
Key Features
✓ Sensing input 180-280 V AC, 50/60 Hz
✓ CT input 1 or 5 A AC, 50/60 Hz
✓ Accessory input +/-3 V DC
✓ Part number 202-2122, also marked 2022122
✓ VR6 regulator for generator excitation control
Marine Applications
✓ Caterpillar marine generator set voltage regulation
✓ Ship service generator excitation control
✓ Standby generator output voltage control
Technical Support
Prota Marine provides technical support, repair and onboard installation for the VR6 voltage regulator and the wider automatic voltage regulator system. Support covers fault diagnosis on unstable or lost generator voltage, along with commissioning support on board.
