Advanced current transformers for precise measurement

Current transformers (CTs) convert the primary section’s current into a measurable signal on the secondary side, typically resulting in a voltage signal via a burden resistor.

This technology is primarily used to measure or detect AC current at various frequencies. Depending on the application, CTs may need to measure currents with an overlapping DC component. Frequencies can range from a few Hz to 20kHz due to switch-mode operations.

Typical applications include, Residual Current Devices (RCD), electric grid surveillance and maintenance, watt-hour meters, electric vehicle chargers, solar inverters, and UPS systems.

We offer diverse solutions based on industrial magnetic cores and mechanical construction. Leveraging our extensive experience with nanocrystalline soft magnetic cores, we assist customers in developing their own CTs or RCDs by selecting the appropriate materials. Additionally, we design and manufacture custom CTs and RCDs according to customer specifications.

Product ranges in current transformers

Current Transformers
Noratel
Current Transformers

An instrument that transforms one current value to another current value while offering galvanic isolation between the two sections.

Customised Current Transformers
Acal BFi
Customised Current Transformers

From the choice of soft magnetic cores to the design of finished components, we have the expertise to offer development, design, and manufacture capabilities for customised current transformers.

74000 Series Current Transformers
Myrra
74000 Series Current Transformers

Made of ferrite magnetic cores, this range represents a low-cost solution for low and mid-frequency current measurement.

Current transformers
JQH - Shenzen JingQuanHua Electronics Co. Ltd
Current transformers

Compact and efficient, the JQH high-voltage transformer features water-cooled heat dissipation, a reliable potted design, and customisable, fast delivery options.