ART-B22-D125

Current Sense Transformers Overview

The ART-B22-D125 is a Rogowski coil current sense transformer manufactured by LEM USA Inc. It operates at 50/60Hz with an impedance of 81 Ohm and inductance of 258 µH. The device features a free-hanging in-line installation style. It supports a primary input current of 1000A. The output characteristics are specified as 22.5mV/kA at 50Hz and 27mV/kA at 60Hz. The physical opening dimension is 5 inches (127 mm).

Current Sense Transformers Feature Summary

• Utilizes flexible Rogowski coil technology for non-intrusive current measurement.
• Designed for split-core application with a 127 mm opening diameter.
• Provides isolated signal output proportional to the rate of change of current.

Current Sense Transformers Applications

• Industrial power monitoring systems requiring AC current sensing.
• Energy metering applications for 50Hz or 60Hz frequencies.
• Power quality analysis equipment.

Current Sense Transformers Procurement Notes

Verify the specific suffix designation when ordering, as variants such as /SP3 exist within the product family. Confirm that the required opening size matches the 127 mm specification. Ensure the application frequency aligns with the 50Hz or 60Hz operational range defined in the datasheet. Cross-reference the part number against official LEM documentation to confirm availability and exact electrical parameters before procurement.

Current Sense Transformers Selection Notes

Select this component for applications requiring high isolation and low insertion loss in AC current measurement. The flexible coil design allows for installation around existing busbars without disconnecting conductors. Consider the output voltage levels relative to the interfacing amplifier requirements. Evaluate the mechanical constraints regarding the free-hanging installation method and the necessary 127 mm clearance for the conductor.

Current Sense Transformers Part Context

This model belongs to the ART series of Rogowski coils from LEM USA Inc. These sensors are engineered for industrial environments where accurate AC current measurement is critical. The series typically offers various opening sizes and output configurations to suit different busbar dimensions and system integration needs.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult LEM technical support for direct equivalents or cross-references based on specific electrical and mechanical requirements.