Active Current Transformer Series Wko

Closed-loop current transformers

DESCRIPTION

WKO current sensors work in accordance with the proven compensation principle and are suitable for measuring direct, alternating and mixed currents.

The primary current generates a magnetic flux, which is compensated by an internal secondary coil. The current is evaluated by an electronic circuit and a Hall sensor. The secondary compensating current is a precise representation of the primary current to be measured.

ADVANTAGES

• Measurement of direct, alternating and mixed currents
• Very high precision and short response time
• Broad frequency spectrum and low-temperature drift
• Very good linearity and overcurrent resistance
• No additional losses in the measuring circuit (DC to 150 kHz)
• Current output for lengthy transmission lines
• High-quality UL-listed insulating materials (e.g. UL94-V0)
• Safe electrically isolated primary and secondary circuits
• Robust housing designs (for horizontal/vertical mounting)
• Variable connections, e.g. clamps, plugs, flat-cable plugs or cables
• Wide range of housings with various push-through openings

TYPICAL APPLICATIONS

Power Electronics: AC DC motor control, inverter technology, drive control, Railway Technology, drive control Renewable energy, wind turbines control, monitoring