Common wiring mode of current transformer

- Feb 17, 2020-

1. The three-phase complete star connection can accurately reflect the real current of each phase in the three-phase. This method is applied to the high current grounding system, including three-phase short circuit, two-phase short circuit and single-phase short circuit.
2. The incomplete star connection of two-phase two relay can accurately reflect the real current of two-phase. This method is applied to the 6-10KV neutral ungrounded small current grounding system to protect the three-phase short circuit and two-phase short circuit of the line.
3. Two phase difference connection reflects two phase difference current. The connection mode is applied to the 6-10KV neutral ungrounded small current grounding system, including three-phase short circuit, two-phase short circuit, small capacity motor protection and small capacity transformer protection.
4. When the three-phase current is balanced, the single-phase current can be used to reflect the three-phase current value, which is mainly used for measuring the loop.
5. The two-phase three relay is fully star connected, and the current flowing into the third relay is ij = IU + IW = - IV. The connection mode is applied in the high current grounding system to protect the three-phase short circuit and two-phase short circuit of the line.https://www.ctsensorducer.com/