Current generator SL series

portablefor industrial applications

SL Current Generator supplies primary current or powers 50 Hz single-phase equipment for verifying current transformers. It is composed of an input winding (220 V), an output winding (≤100 A) and a through-core winding.

Construction & function

• Input winding: 220 V (single-phase, 50 Hz).
• Output winding: rated output below 100 A; nameplate indicates allowable rated current through the core winding.
• Through-core (core) winding: allows multiple turns; rated current capability decreases proportionally with number of turns.
• Nickname: Current Generator.

Key features

• Output current on the nameplate refers to the rated current permitted through the core winding.
• When multiple turns pass through the core, the allowable rated current decreases inversely with the number of turns.
• The ratio of nameplate output capacity to the product of output current and per-turn voltage defines the maximum turns allowed through the core at the specified output current.
• Equipped with casters for easy handling and transport.

Operating conditions / Environmental limits

• Operating temperature: -5°C to +40°C.
• Operating humidity: < 80% RH.
• Designed for long-term operation at rated current.
• Allows 1.5× overload for 30 minutes.

External dimensions & variants

• SL-4: 420 × 240 × 4500 mm³.
• SL-7: 600 × 350 × 700 mm³.

Weight (example)

• SL-4: 14 kg.

Technical specifications

• Input winding: 220 V (single-phase, 50 Hz).
• Output winding: rated output below 100 A (value per nameplate).
• Through-core winding: multi-turn capability; allowable rated current inversely proportional to turns.
• Overload capability: 1.5× rated current for 30 minutes.
• Operating range: -5°C to +40°C; humidity < 80% RH.
• Mobility: caster-mounted for transport.
• Typical models: SL-4 (420×240×4500 mm³, 14 kg), SL-7 (600×350×700 mm³).

Documentation & multimedia

• Product images and demonstration video(s) available (embedded YouTube).
• User manual (PDF) available.