OKUMA E4809-436-091-A工控卡件

产品详细资料
断路器和保险丝所有断路器和熔断器必须缓慢，以允许设备浪涌电流达到额定电流的16倍。熔断器和上游断路器之间的协调（也称为选择性）需要仔细设计，以确保只有受影响的组被清除，其他组继续不受影响地运行。这适用于过电流和短路情况。在使用相同的I平方t（I2t）特性的情况下，对于1.6及更高的值比，通常可以保证熔断器和上游熔断器之间的协调。断路器和上游熔断器之间的协调是可行的，但必须注意，由此产生的电压骤降持续时间不超过连接负载的大电力中断时间。断路器和上游断路器之间的协调要困难得多，并且在需要时需要仔细设计。基本问题是，两个断路器都感应到相同的高短路电流，并启动机械释放或跳闸。一种响应是延迟上游断路器的跳闸功能。这种响应有以下缺点：•所需的延迟时间可能超过IEC 60479-1中允许的大时间。
Circuit Breakers and Fuses All circuit breakers and fuses must be slow to allow for equipment inrush currents up to 16 times the nominal current. Coordination between fuses and upstream circuit breakers (also called selectivity) requires careful engineering to assure that only the affected group is cleared and that other groups continue to operate unaffected. This applies both to over-current and short-circuit situations. Coordination between fuses and upstream fuses is normally guaranteed for value ratios of 1.6 and higher, providing that identical I squared t (I2t) characteristics are used. Coordination between circuit breakers and upstream fuses is feasible, but care must be taken that the resulting voltage dip duration does not exceed the maximum power interruption time for the connected loads. Coordination between circuit breakers and upstream circuit breakers is much more difficult to obtain and requires careful engineering when demanded. The basic problem is that both circuit breakers sense the same high short-circuit current and initiate the mechanical release or trip. One response is to delay the trip function for the upstream circuit breaker. This response has the following disadvantages: • The required delay time may exceed the maximum time permitted in IEC 60479-1.
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。

主营产品各种模块/卡件，控制器，触摸屏，伺服驱动器。

优势：供应进口原装正品，专业停产配件，

发货快，货期精准，

主营品牌包括 ABB贝利、GE/FUANC、FOXBORO、英维思TRICONEX 、本特利BENTLY、A-B罗克韦尔、艾默生EMERSON 、OVATION、MOTOROLA、XYVOM、霍尼韦尔HONEYWELL 、力士乐REXROTH、KUKA、NI、DEIF、横河、伍德沃德WOODWARD、瑞恩、施耐德SCHNEIDER 、安川、 穆格MOOG、PROSOFT等品牌。

只卖库存产品;出完需订货!价格以客服说明为准!!订货货期以客服说明为准，有任何疑问请联繁客服! Limited stock, Contact US!

●使用前:

在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能，还需了解产品的使用寿命环境。

●充分学习产品使用手册，否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation