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ABB UC User Manual

ABB UC
12 pages
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On-load tap-changers, type UC
User’s manual
1ZSE 5492-155 en, Rev. 1, 2000-01-15
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ABB UC Specifications

General IconGeneral
Input Voltage24 V DC
Operating Temperature-20°C to +60°C
Protection ClassIP20
CommunicationEthernet
Programming LanguagesIEC 61131-3 (LD, FBD, ST, IL, SFC)
Output Voltage24 V DC

Summary

Manufacturer's Declaration

Safety Precautions

Operator Knowledge and Risk Awareness

Emphasizes need for operator knowledge and risk awareness for safe operation.

Certified Personnel for Electrical Connections

Mandates certification for personnel performing electrical connections in the motor-drive.

Pressure Relay Trip Procedure

Instructs to call a specialist after a pressure relay trip and outlines investigation steps.

Explosive Gas Hazard Warning

Warns about explosive gases from breathing devices and prohibits ignition sources nearby.

Operation

LOCAL/REMOTE Switch Function

Explains the function of the LOCAL/REMOTE switch for tap-changer operation.

Maintenance Schedule

Inspection

Procedure

Checking of the Earth Fault Protector (Option)

Checking of the Heater

Checking of the Oil Filter Unit (Option)

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