DAPC1003ASC25H203forSteelmills ABB

ABB 3BSE028124R1
ABB 3BSE028125R1
ABB MVA80-003002 0.55K
ABB 0241986461/1000
ABB EL3020 04729276/4040

分类: 标签:

Description

交流地和保护地等。接地系统混乱对PLC系统的干扰主要是各个接地点电位分布不均,不同接地点间存在地电位差,引起地环路电流,影响系统正常工作。例如电缆屏蔽层必须一点接地,如果电缆屏蔽层两端A、B都接地,就存在地电位差,有电流流过屏蔽层

90 Day Hardware Warranty – Free Overnight Shipping!

Alcatel 7670 HSPS 90-7336-02 OC48c IR STM16 IR Card
90 Day Hardware Warranty – Free Overnight Shipping!

Cyclone Microsystems Front End Processor SS7
30 Day warranty, Many SS7 Units in Stock

Force10 LC-ED3-1GE-12P 12-Port Gig E LC E300 E600
90 Day Warranty – Free Shipping!