产品详细资料
•FLEXCURE A DELAY AT n×PU:输入n=1.03的跳闸时间。对于FlexCurve,1.05,…,20.0×pu™ A(C)。随后的消息顺序对应于如上所述的各种拾取电平的跳闸时间。745提供电压输入,用于通电检测(用于百分比差动元件的通电抑制功能)、过励磁保护(每赫兹1和2的电压功能)、,以及频率保护(低频率、频率衰减和过频功能)。请注意,如果电压不可用,频率元件将使用绕组1相A电流输入。•电压输入参数:输入连接到电压输入的电压的绕组和相位。•标称VT次级电压:输入电压互感器的标称次级电压(伏特)。•VT RATIO(电压互感器比率):输入电压互感器的比率•环境电阻温度检测器传感:选择“Enabled(启用)”以使用电阻温度检测器监测环境温度。•环境温度检测器类型:745提供用于监测环境温度的温度检测器输入。可使用的三种RTD类型为100Ω铂和100/120Ω镍,其特征如下:•平均环境温度(按月):只有当环境RTD类型设置为“按月平均”时,才会显示此消息。环境温度用于绝缘老化的计算,必须启用环境温度才能使功能运行。
• FLEXCURVE A DELAY AT n × PU: Enter the trip time for n = 1.03. 1.05,..., 20.0 × pu for FlexCurve™ A(C). The messages that follow sequentially correspond to the trip times for the various pickup levels as indicated above.The 745 provides a voltage input for the purposes of energization detection (for the energization inhibit feature of the percent differential element), overexcitation protection (the volts-per-hertz 1 and 2 functions), and frequency protection (the underfrequency, frequency decay, and overfrequency functions). Note that the frequency elements will use the winding 1 phase A current input if voltage is not available. • VOLTAGE INPUT PARAMETER: Enter the winding and phase of the voltage connected to the voltage input. • NOMINAL VT SECONDARY VOLTAGE: Enter the nominal secondary voltage (in volts) of the voltage transformer. • VT RATIO: Enter the ratio of the voltage transformer • AMBIENT RTD SENSING: Select “Enabled” to use an RTD to monitor ambient temperature.• AMBIENT RTD TYPE: The 745 provides an RTD input for monitoring the ambient temperature. The three RTD types which may be used are 100 Ω platinum, and 100/ 120 Ω nickel, the characteristics of which are as follows:• AVERAGE AMBIENT TEMPERATURE (BY MONTH): This message is displayed only when the AMBIENT RTD TYPE is set for “By Monthly Average”. Ambient temperature is used in the calculation of Insulation Aging and must be enabled for the function to operate.
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