Regavolt variable autotransformers (variacs)
Country: · Model: Regavolt
Regavolt are toroidal variable autotransformers (variacs) in which the output voltage changes smoothly from zero to 100% or 115% of the input. The power of one module is 3 kVA. Such devices are used in electrical workshops, electronics laboratories and on test benches under British standards.
- Output voltage
- smoothly 0-100% or 0-115% of input
- Rated power of a module
- 3 kVA
- Drive
- manual or motorized
- Version
- open or enclosed; single-phase and three-phase
Technical specifications
| Output voltage | smoothly 0-100% or 0-115% of input |
|---|---|
| Rated power of a module | 3 kVA |
| Drive | manual or motorized |
| Version | open or enclosed; single-phase and three-phase |
| Insulation resistance | over 10 MOhm |
| Ambient temperature | -30...+40 °C |
| Contact system | silver-plated track, roller brushes |
| Standard | BS EN 61558-2-14 |
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 toroidal, and voltage is taken off by roller brushes on a silver-plated track, so adjustment has no steps and the contact keeps a low resistance for a long time. The drive is manual or motorized. The motorized variant is useful when the voltage must be changed remotely or according to a test program. The autotransformer is supplied open, for building into a test bench, or enclosed, single-phase or three-phase. The insulation resistance exceeds 10 MOhm, and the ambient operating temperature lies between -30 and +40 °C, which also covers an unheated workshop. The design complies with BS EN 61558-2-14. Custom versions are possible for non-standard tasks.
How to choose
First determine what output voltage is needed. The 0-100% range suits cases where the output must not exceed the mains, and 0-115% gives a margin above nominal for tests at raised voltage. Then choose the number of phases, the version and the drive. If you need a portable bench device with sockets, see the Portavolt 715 with a 0-115% output and IEC 320 connectors. For networks where you only need to reduce the voltage and save energy, consider the PowerSave EST with a reduction of up to 12%.
Request a price and lead time
Regavolt variable autotransformers (variacs). We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Within what limits is the Regavolt output voltage adjusted?
Smoothly from zero to 100% or to 115% of the input voltage, depending on the version. Adjustment is stepless.
What is the power of one Regavolt variac module?
The rated power of a module is 3 kVA. For higher power the devices are made in custom configurations, single-phase or three-phase.
Can the Regavolt be controlled remotely?
Yes, the drive is manual or motorized. The motorized version makes it possible to change the voltage without manual intervention.
Which standard applies to Regavolt autotransformers?
BS EN 61558-2-14. The insulation resistance here exceeds 10 MOhm.
What is the temperature range of the Regavolt?
Ambient temperature from -30 to +40 °C. The contact system with a silver-plated track and roller brushes works over the whole range.
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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.