On-load tap-changers (OLTC)

On-load tap-changers are used for changing tappings on energized transformer windings. ABB has manufactured tap-changers since 1910 with more than 30,000 UC/UZ/UB in service.

On-load tap-changers

Type UCG and VUCG (in-tank) to 400 kV and 500 MVA

Type UCL (in-tank) to 525 kV and 1000 MVA

Type UBB (in-tank) to 76 kV and 90 MVA

Type UZ (on-tank) to 145 kV and 110 MVA w/ motor-drive BUF3

Motor-drive mechanisms

Type BUE2

Type BUL

Accessories

Oil filter, position indicator, voltage regulator

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Dine præferencer:

ABB-kontakt for Danmark

Freddy Meng

Downloads

Se relaterede dokumenter og downloads for:

On-load

Documents

ABB On-load Tap-changers - General Brochure