Difference between Zero Sequence Current Transformer and Zero Sequence Current Filter

Zero Sequence) Current Transformer is a single-turn through-core current transformer, which is generally used in power protection equipment. The zero-sequence current filter, as the name suggests, plays a filtering role. The Zero Sequence) Current Transformer is completely different from the zero-sequence current filter. The Zero Sequence) Current Transformer is used to detect the zero-sequence current. All three live wires are passed through the inner hole of the current transformer, so that the zero-sequence current can be measured. The zero-sequence current filter is to filter the current while ensuring the normal use properties of electricity, while filtering out the negative damage properties of electricity, so as to avoid electric shock without hurting people, no fire, uninterrupted power, and leakage.

 The measurement range of the Zero Sequence) Current Transformer is very wide, because the zero-sequence current will be particularly large in special cases, so the measurement range of the Zero Sequence) Current Transformer is wide, allowing larger multiples of overload. When ordering a zero-sequence current transformer, we need to clearly inform the manufacturer of the inner hole diameter. After all, we need to pass through three live wires at the same time. Under the same current, the inner hole of the zero-sequence current transformer is larger than that of the zero-sequence current filter.