Analysis of the operation of the ground fault protection at the output 10 kV

Abstract

For the normal functioning of the power system, it is necessary to ensure adequate protection of each elements. Part of the electric power system are electric networks, the term of which will primarily mean lines (air and cable). In the paper, the operation of basic line protections was analyzed by mathematical calculations and field measurements. The earth fault protection was caused in the field in order to compare it with the mathematical calculation and draw conclusions about the correct setting and full functionality of the relay protection. Power grid protection is a key aspect for the safety and normal operation of power systems. This analysis includes tests of protection equipment through simulations of earth fault event. The testing is of great importance for new power system maintenance strategies.

Keywords

• earth fault
• earth fault current
• lines
• reley iskra tfp-4091