




产品详情资料
单相固态励磁机可集成在控制器NEMA 1通风外壳中,功率高达9 kW(对于非通风外壳,励磁机必须降额)。较大的励磁机需要辅助外壳,这些外壳可以与Limitamp控制器一起放置在公共总线阵列中。有两种基本类型的励磁机可用:SFC(带可调抽头变压器的固定励磁)VFC(手动或自动在线可调励磁)固定励磁基本励磁机提供单相抽头变压器、静态磁场接触器(SFC)。SFC是一种固态开关设备,由桥式电路中的可控硅整流器(SCR)组成,用于将交流电整流为直流电。提供额外的SCR来切换场放电电阻器。在启动过程中,SFC打开磁场放电电阻器,以便来自电机磁场的感应磁场电流通过放电电阻器。当电机停机时直流电被移除,并且在电机正常运行期间,电机磁场产生约600伏以上的高压浪涌时,磁场放电电阻器也会打开,以释放磁场电流,例如电机“滑动”极时会发生的电压浪涌。当电机加速至接近同步速度时,GE Multilin SPM模块向SFC发出信号,向电机磁场施加直流电,SFC关闭磁场放电电阻器,并使整流桥中的SCR接通,从而向电机磁场提供直流电。桥式SCR被选通“全开”,以便模拟二极管整流桥。电压aSingle-phase solid-state exciters can be integrated in the controller NEMA 1 ventilated enclosure up to 9 kW (exciters must be derated for non-ventilated enclosures). Larger exciters require auxiliary enclosures that can be placed in the common bussed line-up with the Limitamp controllers. Two basic types of exciters are available: SFC (fixed excitation with adjustable tapped transformer) VFC (on-line adjustable excitation by manual or automatic means) Fixed Excitation The basic exciter offering is a single-phase, tapped-transformer, static field contactor (SFC). The SFC is a solid-state switching device consisting of silicon controlled rectifiers (SCRs) in a bridge circuit for rectification of AC power to DC. Additional SCRs are provided to switch the field discharge resistor. During starting, the SFC switches the field discharge resistor on so that the induced field current from the motor field is passed through the discharge resistor. The field discharge resistor is also switched on to discharge the field current when DC is removed at motor shutdown and if, during normal motor operation, the motor field generates a high voltage surge above approximately 600 volts, such as would occur if the motor “slips” a pole. When the motor has accelerated to near synchronous speed, the GE-Multilin SPM module signals the SFC to apply DC to the motor field, the SFC switches the field discharge resistor off and causes the SCRs in the rectifier bridge to turn on, resulting in DC being applied to the motor field. The bridge SCRs are gated “full on” so that they emulate a diode rectifier bridge. The voltage
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。
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,
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