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Features ● Output standard DC voltage ● Power-taking CT open-close structure, easy to install and operate ● The power conversion device is fixed with screws, which is easy to install ● Reserved for external energy storage device port

Also known as CTs, current transformers are devices that measure alternating current. They are widely used to measure high magnitude currents. A current transformer essentially lowers (steps down) a high current to a lower, safer level that you can manage properly. It steps down the current to be measured so that you can measure it with an average range ammeter.

● low price ● Various sizes ● Asymmetrical PCB mounting mode ● Single-turn through-core primary winding application ● Applied to occasions requiring high precision and small phase error ● Applied to high-precision measuring devices for current, power and electric energy

Core column type: The primary coil is a copper column installed in the wall-penetrating magnetic sleeve, and the wall-penetrating The magnetic sleeve is the main connection between the primary coil and the secondary coil and the primary coil to the ground.

When we open the power distribution cabinet, we can see that there are many current transformers in it. Some power distribution cabinets have only one, and some even have five or six. In fact, they all induce current signals from the bus, but the measured currents have different effects. So what role do they all play in the power distribution cabinet?

The wiring of the current transformer should follow the series principle: that is, the primary winding should be connected in series with the circuit under test, while the secondary winding should be connected in series with all instrument loads.

If the main wiring is single busbar, single busbar segment, double busbar, etc., install three-phase voltage transformer on the busbar; when there is power on its outlet, it needs to be reclosed to check the synchronization or no voltage, and it needs to be parallel in the same period. Single-phase or two-phase voltage transformers should be installed on the line side.

​The principle of the current transformer is based on the principle of electromagnetic induction. Its primary winding often has all the current of the line flowing through it. When the current transformer is working, its secondary circuit is always closed.