Split Core vs. Solid Core Current Transformers

Ensuring the safety of measuring large currents in industrial settings presents many challenges. For one, measuring a large voltage via small burden resistors in a circuit is not only ineffective, but also potentially hazardous. Common current measuring instruments can typically measure a few amperes, but you can’t use them for long. Prolonged use may lead to damaged equipment, or worse, physical injury.

Fortunately, high currents can be measured through more practical means, one of which is the use of current transformers. CTs are sensing devices that can reduce the level of current to more manageable levels. They come in different types, but the two most often used are the split core and the solid core CTs.

Split core transformers are considered more practical when installing CTs in existing circuitry, as they can be installed without the need to disrupt the circuit. Solid core CTs, on the other hand, require some rewiring. In terms of cost, split core CTs are pricier, but the fact that they can be easily attached to a circuit means you get to save time, effort, and money in their installation.

Solid core transformers from power monitoring system suppliers, meanwhile, are capable of more precise current measurements, making them the preferred choice in situations where extreme accuracy is necessary.