RADISYS 61-0348-29D用户手册

产品详细资料
•W1（3）NEG SEQ INST OC PICKUP：输入负序电流水平（以继电器标称电流为单位），超过该水平，绕组1（3）负序瞬时过电流元件将拾取并启动延迟定时器。•W1（3）NEG SEQ INST OC DELAY：输入元件运行前负序电流必须保持在拾取电平以上的时间。745可以用作基于低频率的自动减载方案中的主检测继电器。如果在系统扰动期间，某个区域与主系统电气隔离，并且由于输电或发电设施的损失而出现发电不足，则会出现这种需求。如果该地区没有备用发电，则会出现系统频率较低的情况，这可能导致完全崩溃。745提供了一种自动断开足够负载以恢复负载和发电之间可接受的平衡的方法。745使用频率和频率变化率作为其操作标准的基础。这些测量值基于电压输入，或者，如果电压被禁用，则基于绕组1相A的电流输入。继电器具有两（2）个低频率和四（4）个变化率等级。因此，根据扰动的严重程度，可以卸下四个或多个单独的负载块。
• W1(3) NEG SEQ INST OC PICKUP: Enter the level of negative sequence current (in units of relay nominal current) above which the winding 1(3) negative sequence instantaneous overcurrent element will pickup and start the delay timer. • W1(3) NEG SEQ INST OC DELAY: Enter the time that the negative sequence current must remain above the pickup level before the element operates.The 745 can be used as the primary detecting relay in automatic load shedding schemes based on underfrequency. This need arises if, during a system disturbance, an area becomes electrically isolated from the main system and suffers generation deficiency due to loss of either transmission or generation facilities. If reserve generation is not available in the area, conditions of low system frequency occur that may lead to a complete collapse. The 745 provides a means of automatically disconnecting sufficient load to restore an acceptable balance between load and generation. The 745 uses both frequency and frequency rate-of-change as the basis for its operating criteria. These measured values are based on the voltage input or, if voltage is disabled, the winding 1 phase A current input. The relay has two (2) underfrequency and four (4) rate-ofchange levels. Thus, four or more separate blocks of load can be shed, according to the severity of the disturbance.
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