Current transformer

Current transformer (CT) is an electrical device that plays an important role in the power system. Its main task is to measure current, but it is different from an ordinary ammeter. Here are some introductions:
1. Measuring the size of the current: CT is used to measure the intensity of the current. It can show how much current is flowing in a circuit, such as when you use an ammeter in your home to measure the current flowing through an appliance .
2. Safety protection: CT is used for safety protection in power systems. It can detect abnormally high currents, such as short circuits or faults, and trigger circuit breakers to cut off the circuit to prevent fires or other accidents.
3. Current conversion: CT can convert high current into low current suitable for measurement, just like an amplifier. This way, even if the current is large, it can be measured using conventional instruments without damaging the equipment.
4. Non-invasive measurement: CT is non-invasive, which means it can measure the current without interrupting the circuit. This is very important to maintain the power system and ensure continuous power supply.
5. Suitable for transformers: CT is often used together with transformers to help measure the current input and output of the transformer to monitor the operation of power transmission and distribution systems.
Current transformers are important tools in power systems that help measure current, protect safety, and ensure smooth operation of power transmission. It works like a current converter, which can convert high current into low current that is easy to measure without disturbing the normal operation of the circuit.