EDCS-6100 series microcomputer automation unit in 35KV or less transformer substation EDCS-6200 series microcomputer automation unit in 110KV or less transformer substation EDCS-6300 series microcomputer automation unit in power station whose unit capacity is 100MW or less EDCS-7100 series microcomputer automation unit in 35KV or less transformer substation EDCS-7200 series microcomputer automation unit in 220KV or less transformer substation EDCS-7300 series microcomputer comprehensive automation unit in power station whose unit capacity is 200MW or lower
