ARC — toroidal adjustable autotransformers
Country: Spain · Model: ARC
The ARC autotransformers smoothly regulate voltage in single-phase and three-phase circuits using a toroidal winding. They are used in lighting, electroplating, electrolysis and for temperature control in electric furnaces.
- Type
- toroidal autotransformer with smooth regulation
- Phases
- 1 and 3 phases
- Drive
- manual or servo motor with reverse and instant braking
- Version
- in a frame or portable, with voltmeters/ammeters
Technical specifications
| Type | toroidal autotransformer with smooth regulation |
|---|---|
| Phases | 1 and 3 phases |
| Drive | manual or servo motor with reverse and instant braking |
| Version | in a frame or portable, with voltmeters/ammeters |
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
The winding is wound on a toroidal core, and a current collector slides along the open section of the turns, so the voltage changes smoothly, without switching taps. The drive is either manual, with a handle and a scale, or from a servo motor with reverse and instant braking. The motor version is built into an automatic control loop, for example to hold the temperature of a furnace or the current of an electroplating bath. Instant braking stops the current collector at the set point without overshoot, which matters for precise voltage setting. The version in a frame is mounted in a cabinet or on a frame, and the portable one with voltmeters and ammeters is used in laboratories and on test benches.
How to choose
First determine the number of phases and the load current, then the control method. A manual drive is enough for a bench where an operator sets the voltage, and a servo drive is needed for furnace or bath automation. If regulation is not needed but galvanic isolation or fixed voltage conversion is required, look at the dry transformers IT / IT M with windings impregnated with class H resin.
Request a price and lead time
ARC — toroidal adjustable autotransformers. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the ARC adjustable autotransformer used for?
For powering lighting installations, electroplating and electrolysis baths and for regulating the temperature of electric furnaces, where the voltage must be changed smoothly.
Does the ARC have a three-phase version?
Yes, the autotransformers are made in single-phase and three-phase versions, in a frame or portable.
What kind of drive does the ARC regulator have?
Manual or a servo motor with reverse and instant braking. The second option suits remote and automatic control.
Does the ARC autotransformer give galvanic isolation?
No, an autotransformer has a common winding for input and output. For isolation an isolating transformer is needed, for example from the IT series.
What controls an ARC autotransformer with a servo drive?
A servo motor with reverse receives commands from a furnace controller, an electroplating line controller or an operator from a panel. Instant braking stops the current collector exactly at the set position.
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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.