VACUTAP VR / VRL vacuum OLTC for power transformers 72.5–420 kV
Tank-integrated VACUTAP VR vacuum on-load tap changer for grid and power plant transformers 72.5–420 kV. The single-phase VRL design is rated for currents up to 3200 A, including furnace transformers.
- Highest voltage for equipment Um
- 72.5–420 kV
- Rated through current
- up to 1600 A (3-phase), up to 2600 A (1-phase); VRL up to 3200 A (1-phase)
- Step voltage
- up to 6000 V
- Step capacity
- up to 6000 kVA (VRL up to 10000 kVA)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Through current of the VR is up to 1600 A in three-phase and up to 2600 A in single-phase design. Step voltage is up to 6000 V and step capacity up to 6000 kVA, up to 10000 kVA for the VRL. The number of positions is up to 18 without a pre-selector and up to 35 with a pre-selector. The switching principle is high-speed resistor type, with the arc extinguished in vacuum interrupters.
Technical specifications
| Highest voltage for equipment Um | 72.5–420 kV |
|---|---|
| Rated through current | up to 1600 A (3-phase), up to 2600 A (1-phase); VRL up to 3200 A (1-phase) |
| Step voltage | up to 6000 V |
| Step capacity | up to 6000 kVA (VRL up to 10000 kVA) |
| Number of positions | up to 18 without pre-selector, up to 35 with pre-selector |
| Principle | high-speed resistor type, vacuum interrupters |
Replacement for
no direct analogue (vacuum OLTCs) exists; the closest are OLTCs of type РНОА-110/1000, РНТА-35/200, РС-4, РС-9
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
VACUTAP VR / VRL vacuum OLTC for power transformers 72.5–420 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8535 90 00 00 |
|---|---|
| HS, 6 digits | 8535 90 |
| CN (EU) | 8535 90 00 |
| HTSUS (USA) | 8535 90 80 60 |
| China customs tariff | 8535 90 00 90 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What voltage classes is the VACUTAP VR designed for?
Um 72.5–420 kV, for grid and power plant transformers.
Which design suits furnace transformers?
The single-phase VRL for currents up to 3200 A with step capacity up to 10000 kVA.
How many positions does the OLTC have?
Up to 18 without a pre-selector and up to 35 with a pre-selector.
Similar equipment from other manufacturers
