产品详情资料
这对于同步电机来说尤其重要。此功能可与时间延迟一起使用,以在启动之前和启动期间为欠压条件提供保护。❙ 欠压,欠压❙ [ENTER]仅在总线通电时激活更多U/V:无范围:否,是欠压报警:关范围:关、锁定、未锁定分配报警继电器:报警范围:报警、报警和辅助2、报警和辅2过压如果启用,一旦Va、Vb或Vc的幅值在延迟指定的时间段内升高到拾取电平以上,将发生跳闸或报警(拾取电平是电机铭牌电压的倍数)。在恒定负载下运行的电机上的过电压会导致电流降低。然而,铁和铜损失增加,导致电机温度升高。电流过载继电器不会检测到这种情况并提供足够的保护。因此,过电压元件可用于在持续过电压情况下保护电机。4.10.3相位反转469可检测三相电压的相位旋转。如果所有三相电压均大于电机铭牌电压的50%时,相位反转功能开启,且三相电压的相位旋转与设定值不同,则跳闸和闭塞启动将在500至700毫秒内发生。This may be especially critical for a synchronous motor. This feature may be used in with a time delay to provide protection for undervoltage conditions before and during starting. ❙ UNDERVOLTAGE ❙ [ENTER] for more U/V ACTIVE ONLY IF BUS ENERGIZED: No Range: No, Yes UNDERVOLTAGE ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 OVERVOLTAGE If enabled, once the magnitude of either Va, Vb, or Vc rises above the pickup level for a period of time specified by the delay, a trip or alarm will occur (pickup levels are multiples of motor nameplate voltage). An overvoltage on running motor with a constant load results in decreased current. However, iron and copper losses increase, causing an increase in motor temperature. The current overload relay will not pickup this condition and provide adequate protection. Therefore, the overvoltage element may be useful for protecting the motor in the event of a sustained overvoltage condition. 4.10.3 PHASE REVERSAL The 469 can detect the phase rotation of the three phase voltage. If the Phase Reversal feature is turned on when all 3 phase voltages are greater than 50% motor nameplate voltage, and the phase rotation of the three phase voltages is not the same as the setpoint, a trip and block start will occur in 500 to 700 ms.
发货期:1-3个工作日,具体可联系客服
质保:质保期一年!
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。
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●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,