SACTK160

What is a Split Core Current Transformer?

Split core current transducerS (CTs) feature a hinged-core design that allows the core to open and close around a conductor without interrupting the circuit. This design enables easy installation, removal, and retrofitting, making them ideal for temporary setups or applications where downtime must be minimized.

The hinged mechanism introduces small air gaps in the core. However, proper alignment and secure clamping reduce these gaps, maintaining the integrity of the magnetic path and minimizing accuracy loss. High-quality split-core CTs use precision clamps and latching mechanisms to address these challenges.

Once closed, a split-core CT functions like a solid-core CT: the primary current generates a magnetic flux in the core, inducing a proportional current in the secondary winding. The secondary output can then be connected to power analyzers or monitoring devices. To ensure accurate measurements, it is essential that the analyzer is properly rated and connected. While split-core CTs may have slightly lower accuracy than solid-core CTs due to the air gaps, regular calibration and maintenance help maintain reliable performance.

Applications of Split Core Current Transformer

Split-core current transformers are widely used across various industries due to their easy installation and flexibility. Typical applications include:

Building Automation Systems: Monitor and control energy usage in commercial and residential buildings.

Energy Submetering: Accurately measure energy consumption for cost allocation or billing purposes.

Power Quality Analysis: Assess voltage, current, and harmonic performance in electrical systems.

Motor Monitoring: Track motor performance and detect overloads or faults.

HVAC Systems: Optimize heating, ventilation, and air conditioning efficiency.

Lighting Control: Manage energy usage and monitor lighting circuits.

Advantages of Split-Core Current Transformers

Ease of Installation
The split-core design enables quick and effortless installation around existing conductors without disconnecting the circuit, minimizing downtime and reducing installation costs.

Versatility
These CTs are highly adaptable, suitable for retrofitting existing electrical systems, portable instrumentation, and temporary monitoring setups.

Minimal Disruption
Since installation does not require circuit interruption, split-core CTs are ideal for live panels or equipment where shutdowns are impractical.

Wide Range of Sizes
Available in various sizes and current ratings, split-core CTs can accommodate different conductor dimensions, making them suitable for diverse applications across multiple industries.

Upgrade your electrical monitoring with Sinava’s high-quality split-core current transformers. Easy to install, versatile, and precise—perfect for retrofits, temporary setups, and live panels.

Contact Sinava Today to find the right CT for your application and ensure accurate, uninterrupted current measurement.