Rotavolt — variable autotransformer up to 60 kVA
Country: United Kingdom · Model: Rotavolt
Rotavolt is a variable autotransformer rated up to 60 kVA that changes AC voltage smoothly, without steps. The output is adjustable from 0 to 115 % of the input voltage. The series comes in single-phase and three-phase versions.
- Power
- up to 60 kVA, 9 frame sizes
- Phases
- 1 and 3 phases
- Output voltage
- 0–115 % of input, continuously
- Versions
- multi-section, motorised
Technical specifications
| Power | up to 60 kVA, 9 frame sizes |
|---|---|
| Phases | 1 and 3 phases |
| Output voltage | 0–115 % of input, continuously |
| Versions | multi-section, motorised |
Replacement for
LATR-1M, LATR-2M, RNO-250-2, RNO-250-5, RNO-250-10, RNT (voltage regulators)
selected by purpose and main parameters, please confirm with the manager
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Regulation is linear and continuous, the voltage waveform is not noticeably distorted, and efficiency is high. The range spans 9 frame sizes, so the rating can be matched without a large margin. Versions are multi-section and motorised, the latter adjusted by a drive. The output stays within 0–115 % of the input, so the voltage can be both lowered and raised above the supply. Autotransformers of this type form the core of electromechanical voltage stabilisers. On their own they are used where voltage has to be tuned to a test bench, a machine or a process setting.
How to choose
First fix the number of phases and the required rating, then pick a frame size from the range up to 60 kVA. Choose it with a small margin on load current so the unit does not run at its limit. If the voltage is tuned by hand to suit the object, a basic version is enough; for adjustment without an operator take a motorised one. When the aim is only to lower and balance the input voltage across phases to save energy, the Voltage Optimisation unit fits better, with 5–9 % per year quoted and up to 18 % with PowerMap monitoring. For circuit separation at charging points, look at EV Isolation Transformers.
Request a price and lead time
Rotavolt — variable autotransformer up to 60 kVA. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What power range does Rotavolt cover?
Up to 60 kVA, in 9 frame sizes.
What output voltage range does Rotavolt give?
From 0 to 115 % of the input voltage, adjusted continuously.
Are three-phase versions available?
Yes, the series is made for 1 and 3 phases.
Which constructions are offered?
Multi-section and motorised. The motorised type is adjusted by a drive, with no hand turning.
Does regulation distort the voltage waveform?
Regulation is linear and continuous, the waveform is not noticeably distorted and efficiency is high.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.