How to reduce the phase difference of Electrical Current Transformer

1. Installing circuit breakers on the secondary side can make the Electrical Current Transformer safer and more reliable during operation, so the choice of circuit breakers must be appropriate.

2. In order to avoid the voltage imbalance on both sides of the open triangle winding, it is necessary to make a parallel resistance on both sides of the open triangle winding, and when the parallel resistance is induced to the zero-sequence voltage, the zero-sequence current is connected to the equipment. This has the effect of suppressing resonance.

3. In order for the insulating layer to effectively supervise the faults in the relay and the grounding device, the structure of the Electrical Current Transformer must be selected correctly. At least one of the two winding resistances on the pressure side of the Electrical Current Transformer has a grounding device.

4. If the voltage of the power grid is less than 10kV, the center line of the switching power supply end does not need to be grounded immediately, but needs to be grounded at the neutral point. Doing so can avoid damage to the fuse due to low voltage generated during power switching.

5. Reasonable methods can be used when connecting the electrical current transformer terminal screen, such as the terminal screen immediately grounding device, so that once accumulation occurs, equipment damage can be avoided. In addition, if the grounding device is not installed immediately, a certain penetration gap can flow between the end screen and the ground.