Setavolt iSA — industrial three-phase induction variable transformers 150–800 A
Country: United Kingdom · Model: Setavolt iSA
The Setavolt iSA three-phase induction variable transformer is designed for a current of 150–800 A and gives 20 to 600 V at the output when fed from a 380–415 V grid. The oil-filled version is aimed at large industrial consumers that need smooth voltage change under load.
- Current
- 150–800 A
- Input
- 3 phases 380–415 V
- Output
- 20–600 V (up to 1000 V with option -X1000)
- Technology
- magnetic induction, brushless (rotor/stator, rotation up to 130°)
Technical specifications
| Current | 150–800 A |
|---|---|
| Input | 3 phases 380–415 V |
| Output | 20–600 V (up to 1000 V with option -X1000) |
| Technology | magnetic induction, brushless (rotor/stator, rotation up to 130°) |
| Cooling | oil; air with option -AC |
| Drive | motorised or manual with electromagnetic brake |
Replacement for
no direct analogue; closest — induction voltage regulators (general type), RNT
selected by purpose and main parameters, please confirm with the manager
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Regulation is based on magnetic induction. The rotor turns relative to the stator by up to 130°, and the output voltage changes smoothly, without brushes or sliding contacts, which wear out in classic variable autotransformers. The active part is immersed in oil, which also removes heat, and for rooms where oil is undesirable there is air cooling with option -AC. The rotor drive is either motorised for remote control or manual, and in both cases an electromagnetic brake holds the chosen position. The standard upper limit of the output is 600 V, and with option -X1000 it is raised to 1000 V for high-voltage tests.
How to choose
The choice is made by the highest load current within 150–800 A and by the required upper voltage limit. If the current does not exceed 200 A, the motorised Setavolt mSA-3 autotransformer with a range of 10–200 A gives a more compact option. For manual regulation up to 60 A in three phases the SA-3 is enough.
Request a price and lead time
Setavolt iSA — industrial three-phase induction variable transformers 150–800 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the output voltage range of the Setavolt iSA?
20–600 V as standard with a 3-phase 380–415 V input. Option -X1000 extends the output to 1000 V.
Does the iSA transformer have brushes that need replacing?
No, regulation is brushless. Voltage is changed by rotating the rotor relative to the stator by up to 130°, so there is no wearing assembly here.
Can the iSA be ordered without oil cooling?
Yes, with option -AC the transformer has air cooling. The base version is oil-cooled.
Can the iSA be controlled remotely?
Yes, in the motorised version an electric drive changes the rotor position. There is also a manual version, and both have an electromagnetic brake.
What current are Setavolt iSA transformers designed for?
The range covers currents from 150 to 800 A, the most powerful variable transformers among Setavolt units.
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Need a price, lead time or replacement?
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