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How to wire current transformer

by:Transmart     2022-04-30

Current transformer is an instrument that converts the large current in the primary side circuit into a small current that can be measured by the secondary side ammeter. It is mainly used for current monitoring and measurement or measurement of electric energy.u200bu200b
Introduce the monitoring and measurement of current:
The monitoring and measurement of current is divided into two forms, one is the ammeter to detect the current; the other is the thermal overload protection measurement. As we all know, the wiring method of the ammeter to detect the current, the secondary side of the current transformer must not be opened. Because the current transformer is a step-up transformer, in the state of open circuit, high voltage will be generated on the secondary side, which is easy to cause electric shock to the human body. Therefore, the secondary side must be shorted when not in use. The easiest way is to connect the P1 and P2 terminals directly with 2.5mm wires.u200bu200b

How to swap after P1 and P2 are reversely connected?
When the P1 end is connected to the P2 end, it is enough to reconnect the P1 and P2 ends to their respective original positions.u200bu200b

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