Zero sequence transformer is generally used to detect the main circuit through the transformer circuit "unbalance" current (leakage current), because the main circuit through the transformer circuit,

In general, the fundamental difference between the zero line and the ground is that one constitutes a working circuit, a protective role is called protective grounding, a back to the grid, a back to the earth, in electronic circuits, the two concepts are to be distinguished,

Zero row ground row is straight through with the metal casing of the distribution cabinet, and is fixed directly to the metal frame of the distribution cabinet. Above the yellow and green two-color ground wire, or metal flexible tape connected to it.

Soft articulation or busbar molding process is mainly through the stamping or bending to complete. In the soft articulation and busbar in the molding process often presents the following problems, we analyze one by one today.

At our initiative, the topic of green finance was included in the G20 agenda for the first time this year, and a Green Finance Study Group was set up to launch a comprehensive G20 report on green finance.