SONG Hong-wei. Analysis of Setting of Underground High and Low Voltage Protection Value[J]. Journal of Mine Automation, 2012, 38(7): 18-22.
Citation: SONG Hong-wei. Analysis of Setting of Underground High and Low Voltage Protection Value[J]. Journal of Mine Automation, 2012, 38(7): 18-22.

Analysis of Setting of Underground High and Low Voltage Protection Value

  • In allusion to problem that improper setting of protection value of power supply networks of coal mine often caused misoperation or rejection of protection, the paper described principles and specific setting methods of three-section current protection, voltage protection, selective leakage protection, additional DC protection and non-electrical protection of underground high and low voltage protection. It also gave instance analysis of setting of three-section current protection.
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