Tap-changer product lifecycle status
Motor drives
| Product | Status | Replacement |
|---|
| BUE 2 | Active | BUL 2 |
| BUF 3 | Active | |
| BUL 2 | Active | |
| BUL | Legacy | BUL 2 and BUE 2 |
| BUE 1 | Legacy | BUE 2 and BUL 2 |
| BUD | Obsolete | BUE 2 and BUL 2 |
| BUF 1 | Obsolete | BUF 3 mounted on UZE/UZF |
| BUF 2 | Obsolete | BUF 3 mounted on UZE/UZF |
| BUB | Obsolete | BUE 2 and BUL 2 |
| HD | Obsolete | BUE 2 and BUL 2 |
Tap-changers
| Product | Status | Replacement |
|---|
| UBB | Active | VUBB |
| UCG | Active | VUCG |
| UZE | Active | UZF |
| UZF | Active | UZE |
| VUBB | Active | UBB |
| VUCG | Active | UCG |
| VUCL | Active | UCL |
| UCL | Restricted | VUCL |
| UCC | Legacy | VUCL |
| UCD | Legacy | VUCL |
| UCB | Obsolete | (V)UCG, (V)UCL |
| UCF | Obsolete | (V)UCG, VUBB |
| UD | Obsolete | Please contact Hitachi Energy |
| UF | Obsolete | Please contact Hitachi Energy |
| UT | Obsolete | Please contact Hitachi Energy |
| UZB | Obsolete | UZE and UZF |
| UZC 300A and 500A | Obsolete | UZE and UZF |
| UZC 600A | Obsolete | UZE and UZF |
| UZD | Obsolete | UZE and UZF |
Selectors
| Product | Status | Replacement |
|---|
| Selector III | Active | |
| Selector C | Active | |
| Selector F | Active | |
| Selector UCC (IV) | Legacy | Selector F |
| Selector I | Obsolete | Selector C and Selector III |
| Selector II | Obsolete | Selector C and Selector III |
De-energized tap-changers and switches
| Product | Status | Replacement |
|---|
| UOB | Obsolete | Refer to USTAL, BRABB or ELMEK |
| UOS | Obsolete | Refer to USTAL, BRABB or ELMEK |
| UOV | Obsolete | Refer to USTAL, BRABB or ELMEK |
| UOR | Obsolete | Refer to USTAL, BRABB or ELMEK |
| BUH | Obsolete | Refer to USTAL, BRABB or ELMEK |