Abstract:

 This paper first analyzes the electric power industry of substation VRLA battery discharge online have not been promoted the reason which leads to the necessity of grid connected inverter; remote discharge this remote discharge mode, a discharge of the nuclear capacity is to save cost, release maintenance manpower; two is the discharge process of full free heat, safe and reliable, the three is to adapt to the automation of electric power system the requirements, effectively avoid the risk of nuclear operation capacity of artificial discharge; four is the national energy conservation policy; five is the micro grid development requirements; and then introduces the safety guarantee measures of inverter discharge, inverter grid connected remote discharge technology maturity is the prerequisite of ensuring the safety of the battery remote discharge system and describes the one-way diode; automatic switching technology and circuit can effectively protect the battery always online, so as to guarantee the safety of substation substation far; The discharge process of inverter power is small, does not affect the public grid; various national compulsory certification standards, requirements of inverter equipment should be verified by third party certification body meets the specification can be put into use before using these security measures to guarantee the safety of the inverter discharge, for inverter remote discharge system applied in Substation.

Key words: inverter grid connected, remote discharge, safety, human cost, avoid operational risk, energy saving and emission reduction