Three roles of Electrical Current Transformer

1. Expand the range of AC instruments

Because the Electrical Current Transformer is made based on the principle of a transformer, it has a certain current ratio. When using electricity, the amount of current needs to be determined according to the amount of electricity. For example, large enterprises require a relatively large current. Ordinary single-phase and three-phase meters cannot withstand large currents, but using the Electrical Current Transformer can effectively convert large currents into small currents, so that a meter with a relatively small range can be used to detect the results.

2. Reduce production costs and standardize instruments

When producing the instrument, it is very important to standardize the instrument. Since the secondary side current of the Electrical Current Transformer is uniformly made into a standard 5A, the instrument manufacturer only needs to produce the AC with a range of 5A when producing the instrument. The ammeter is enough, not raising it can not only standardize the production of the meter, but also reduce the production cost.

3. Isolate large current to reduce potential safety hazards

From the structure of the Electrical Current Transformer, we can know that its primary side and secondary side are not directly connected to electrical appliances, but only the coupling of the magnetic circuit. When a large current needs to be measured, the primary side and the measurement circuit are directly connected by Yes, but the secondary side needs to be connected to the meter, so it has no direct connection with the circuit being measured, so that when personnel are operating, they will not be in direct contact with high-voltage electricity, which not only protects the safety of the meter It also ensures the safety of thermal operators.