通过对部分10 kV大电流开关柜进行技术性改造，大幅度提升了大电流开关柜运行的安全可靠系数，解决了10 kV大电流开关柜触头发热问题。%Through technical transformation of some 10 kV high current switchgear cab-inets at Hanbao Steel, the operation safety and reliability of high current switchgear cabinets were greatly improved and the problem of contact heating in the high current switch cabinets was solved.
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