Split-Core Current Transformer (CT)
Country: · Model: Split-Core CT
A split-core current transformer for accurate current measurement in power metering systems. It has a wide dynamic sensing range and is certified to UL 2808.
Technical specifications
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The core of this transformer opens, so it is clamped onto an installed conductor without breaking the power circuit. For submetering this means mounting with the load on and no rebuild of the cabinet. A wide dynamic sensing range helps hold accuracy at both low and high current in one line, which matters for points with variable load. The product is certified to UL 2808 and meant for electricity metering applications. The secondary signal goes to the input of a meter or power monitor, so the transformer output must match the parameters of that input. The size of the window in the core also has to be considered, since it must enclose the conductor or busbar.
How to choose
When choosing, look at the diameter and shape of the conductor or busbar, the range of currents in the line, and the meter input to which the secondary winding connects. If cables are bundled or a flexible sensor is needed, look at the Rogowski coil from the same line. Accuracy classes and rated currents of the transformer should be matched to the meter requirements.
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Split-Core Current Transformer (CT). We reply within one business day.
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FAQ
What is a split-core current transformer?
A current sensor whose core opens, so it is installed on an existing conductor without breaking the circuit.
What certification does this transformer have?
It is certified to UL 2808.
Why does a wide dynamic range matter?
So that both small and large currents are measured accurately on one line when the load changes during the day.
When should a Rogowski coil be chosen instead of a transformer?
When space is tight, cables are bundled or the busbar is large, because a flexible coil wraps such a conductor more easily.
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