描述
当输入X0接通时，定时器T200从0开始对10ms时钟脉冲进行累积计数，当计数值与设定值K123相等时，定时器的常开接通Y0，经过的时间为123×0.01s=1.23s。当X0断开后定时器复位，计数值变为0，其常开触点断开，Y0也随之OFF。若外部电源断电，定时器也将复位。
GE ZENITH CONTROLS 1000A TRANSFER SWITCH ZTGK100FC-7
FPE 14.4KV 600A LOAD INTERRUPTER COMPARTMENT SWITCH
S&C 14.4 KV 200A N3R PAD MOUNTED PMS-12 MARK III SWITCH
S&C 14.4KV 600A N3R SML-20 PAD-MOUNTED SWITCH
S&C 27KV 600A 3PH PMH-6 PAD MOUNTED GEAR MARK II SWITCH
S&C SMU-20 27KV 600A ELECTRICALLY OP. FUSIBLE SWITCH
CUTLER HAMMER DSII-608 800A AC POWER CIRCUIT BREAKER
GE OIL FILLED TRANSFORMER SUBSTATION W/ SWITCH 750-966
MGM 400 KVA 208 480Y/277 VAC AC370-T0133 TRANSFORMER
