How does a current transformer measure high current? How to connect an ammeter?
Release time:
2024-09-14
A current transformer is a measuring device that can measure large currents in a power system. In the power transmission and distribution system, it is very important to do a good job in current measurement, because many devices have very high requirements on the size of the current. Once the current is too large or too small, it will either lead to unstable operation of the equipment or damage the equipment. The transformer can measure a large current and convert it into a suitable small current, and is allowed to be connected to an ammeter during use. So how does it measure high current? How to connect the ammeter?
A current transformer is a measuring device that can measure large currents in a power system. In the power transmission and distribution system, it is very important to do a good job in current measurement, because many devices have very high requirements on the size of the current. Once the current is too large or too small, it will either lead to unstable operation of the equipment or damage the equipment. The transformer can measure a large current and convert it into a suitable small current, and is allowed to be connected to an ammeter during use. So how does it measure high current? How to connect the ammeter?
Transformer is a sensor used to measure large current in power system. Their design principle is based on inductance, with an iron core in their heart.
This core surrounds a wire, and when current is generated through the wire of the transformer, an induced current is generated in the other coil. The value of this induced current can be measured by the measuring device and represents a small proportion of the amount of current passing through the original wire.
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