Discussion on the Medium-Voltage Power Supply and Distribution System of Iron and Steel Enterprises Changed with Low-Resistance Grounding Method
Aiming at the problems brought by the neutral point of the 6～35 kV power supply system and distribution system of a large iron and steel enterprise not being grounded or grounded by the arc-canceling coil,combined with the cases of grounding faults and the capacitance currents of the power supply and distribution system measured at the site,it is proposed to carry out the modification of the neutral point of the existing 6～35 kV power supply and distribution system in the form of low-resistance grounding.The key issues involved in the transformation are analyzed and solution measures are proposed to provide reference for the implementation of the transformation of the neutral low-resistance grounding method of the power supply and distribution system.
6～35 kV power supply and distribution systemneutral grounding methodlow-resistance groundingsingle-phase ground faultcapacitive current test
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