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6ES7214-1BG40-0XB0
b、事故情况下(为避免停机,限制负荷或对主设备造成危害),电动机的起动次数不分冷热态,均可连续启动两次;40kW以下的电动机,起动次数不受限制。
c、正常情况下,直流电动机的起动次数不宜过频,低油压试验时,起动间隔时间不小于10分钟。
d、事故情况下,直流电动机的起动次数及时间间隔不受限制。
e、电动机(包括直流电动机)进行动平衡试验时,起动时间间隔为:
(1)。 200kW以下电动机(全部380V电动机,220V直流电动机),时间间隔为0.5小时。
(2)。 200-500kW电动机,时间间隔为1小时。包括:凝结泵、凝升泵、前置泵、岸边补水泵、炉循环泵、#3皮带机、#6皮带机。
(3)。 500kW以上电动机,时间间隔为2小时。
包括:电泵、碎煤机、磨煤机、送风机、一次风机、吸风机、循环泵、热网循环泵。
电机冷热态的规定
a、电动机铁心或线圈温度与周围环境温度差大于3度即为热态;温度差小于3度即为冷态。
b、若无表计监视时,以电动机是否停运4小时为标准,超过4小时为冷态,低于4小时为热态。
电动机大修后或新投入运行的电动机在初次启动时,要记录电动机启动时间和空载电流。电动机启动后,由联锁或保护等原因引起跳闸,应仔细检查出原因并处理,严禁不明原因再次启动。
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SIEMENS KSP-M44-A66 MACHINE CONTROLLER BOARD NIB
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SIEMENS BOARD 544 381 544381
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SIEMENS 4620087601 A SPINDLE PC BOARD
Siemens 1710191-P3Y1-N/1 PCB board 1710191P3Y1N1 Ref
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MOORE SIEMENS 15215-1 15225 MANUAL TRANSFER BOARD CARD
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SIEMENS 6FX1124-6AA02 DRIVE BOARD
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Siemens simatic S5 memory card 6ES5374-1FH21
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Texas Instruments/Siemens 500-5016/5005016 Analog Card
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LOT OF 5 T I TI Siemens OUTPUT 500-5011 Module Card
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2 SIEMENS 500-633440 2 SLOT CC-2 MODULE CARD CAGE