美国SEL084900100000010继电器用途
美国sel084900100000010继电器用途
sel-849 是一款多功能产品，适用于工业和公用事业应用。它提供基于电流、电压和热的电机保护;基于电流和电压的馈线保护;弧光检测;和功率计量。
sel-849 可轻松安装在电机控制中心 （mcc） 铲斗或控制面板内。可选的 sel-3421 和 sel-3422 电机继电器 hmi 允许简单的远程通信。
the sel-849 motor management relay provides an exceptional combination of protection, metering, monitoring, control, and communications in a compact industrial package. built-in rogowski coil-based windowcurrent transformers provide phase current measurement suitable for applications up to fla = 256 a. youcan connect external cts to accommodate full load amperes (fla) greater than 256 a, and you can configurethe device as a motor, variable frequency drive (vfd) motor, or feeder protection relay. connect an externalcore-balance current transformer (cbct) to obtain sensitive ground-fault detection in a high-impedancegrounded system.➤ standard motor protection and control features. protect low- or medium-voltage three-phasemotors, as well as vfd fed motors, with an enhanced thermal model that includes locked rotor starts,time between starts, starts-per-hour, antibackspin timer, load loss, current unbalance, load jam/stalledrotor, phase reversal, breaker/contactor failure, positive temperature coefficient (ptc) thermistor overtemperature, phase, negative-sequence, residual-ground instantaneous and inverse-time overcurrentelements, and an external cbct for sensitive ground-fault protection. implement load control, stardelta starting, two-speed control, forward-reverse start control, and such other control schemes asundervoltage automatic restarting.➤ arc-flash protection. use the sel-849 with built-in fiber-optic arc-flash detector input to implementarc-flash protection. settable arc-flash phase and residual overcurrent elements combined with the arcflash light-detection element provide secure, reliable, and fast-acting arc-flash event protection. ➤ optional protection features. use the sel-849 with voltage input option to provide over- and undervoltage, over- and underfrequency, directional power, loss-of-potential, and power factor elements.➤ operator controls. use a double-shielded, 600 v mcc-rated, sel c627m category 5e ethernetcable, as long as 7.62 meters (25 feet), to connect the sel-849 relay to an optional sel-3421 motorrelay human-machine interface (hmi) or sel-3422 motor relay hmi module. both hmi modulesprovide eight user-programmable tricolor led targets, two fixed targets, and motor control andfunction keys. the sel-3421 motor relay hmi module also has a full graphical display withnavigation and soft keys. ➤ integrated web server. log on to the built-in web server to view metering and monitoring data and todownload events, sequential events recorder (ser), motor start reports, etc. use the server also toview, edit, and save relay settings or to perform relay firmware upgrades.➤ relay and logic settings software. acselerator quickset® sel-5030 software reduces engineering costs for relay settings and logic programming and simplifies development of selogic® control equations.➤ metering and monitoring. use built-in metering functions to eliminate separately mounted meteringdevices. analyze ser reports and oscillographic event reports for rapid commissioning, testing, andpost-fault diagnostics. additional monitoring functions include the following:➣ motor start reports➣ motor start trending➣ load profile monitoring➣ motor operating statistics➣ demand metering➤ direct connect 690 vac voltage inputs. optional voltage inputs allow for wye-connected, opendelta-connected, or single voltage inputs to the relay. use potential transformers to connect highervoltages.➤ control inputs and outputs. six or twelve (optional) internally wetted control inputs or six externally wetted to 24/48 vdc/vac or 110/125 vdc/vac control inputs and four contact outputs (oneform c and three form a) are for control and status indication.➤ analog output (optional). use an optional 0–20 ma programmable analog output to display anyrelay analog quantities on an external analog meter.➤ communications ports.➣ port 1 and an optional port 3, eia-232 or eia-485 configurable serial ports➣ port 2 single or dual (optional) 10/100base-t ethernet port(s)➣ hmi ethernet port➤ communications protocols.➣ modbus® rtu and tcp/ip➣ iec 61850 (optional ethernet-based protocol)➣ dnp3 serial, dnp3 lan/wan➣ simple network time protocol (sntp)➣ ethernet/ip➣ parallel redundancy protocol (prp)➣ file transfer protocol (ftp)➣ telnet (sel ascii)➣ sel protocols➤ iec 60947-4-1 type 2 coordination compatible. for short circuits, the relay withstands as much as100 ka.
西门子S120/G120变频器报F30021接地故障维修
影像测量仪与一键闪测仪之间的差异
风速仪的选择
德国马尔齿轮测量中心的应用范围介绍
牛舍风机日常运行中的维护措施
美国SEL084900100000010继电器用途
怎么选择合适的海洋界标样式
焦化废水处理优化过程工艺流程介绍
HTT STB-R-230温控器 温度设置
网络搜索不吸水橡塑保温板价格查询
轴承的润滑
糖果生产设备选择食品级润滑剂需要注意什么问题？
AB面复合保温板原料匀质保温板 外墙水泥基匀质聚苯板
JB308-75机械部标准阀门型号选型方法
二手三效多级蒸发器
化验检测燃料油锅炉油的热值的仪器都能测试什么？
混流风机的优势主要体现在这几方面
不同食品饮料的pH值是多少？测食品饮料PH值还得是这个.....
怎么选择合适的障碍物浮标样式
超声波清洗机厂家使用主要参考参数？
sel-849 是一款多功能产品，适用于工业和公用事业应用。它提供基于电流、电压和热的电机保护;基于电流和电压的馈线保护;弧光检测;和功率计量。
sel-849 可轻松安装在电机控制中心 （mcc） 铲斗或控制面板内。可选的 sel-3421 和 sel-3422 电机继电器 hmi 允许简单的远程通信。
the sel-849 motor management relay provides an exceptional combination of protection, metering, monitoring, control, and communications in a compact industrial package. built-in rogowski coil-based windowcurrent transformers provide phase current measurement suitable for applications up to fla = 256 a. youcan connect external cts to accommodate full load amperes (fla) greater than 256 a, and you can configurethe device as a motor, variable frequency drive (vfd) motor, or feeder protection relay. connect an externalcore-balance current transformer (cbct) to obtain sensitive ground-fault detection in a high-impedancegrounded system.➤ standard motor protection and control features. protect low- or medium-voltage three-phasemotors, as well as vfd fed motors, with an enhanced thermal model that includes locked rotor starts,time between starts, starts-per-hour, antibackspin timer, load loss, current unbalance, load jam/stalledrotor, phase reversal, breaker/contactor failure, positive temperature coefficient (ptc) thermistor overtemperature, phase, negative-sequence, residual-ground instantaneous and inverse-time overcurrentelements, and an external cbct for sensitive ground-fault protection. implement load control, stardelta starting, two-speed control, forward-reverse start control, and such other control schemes asundervoltage automatic restarting.➤ arc-flash protection. use the sel-849 with built-in fiber-optic arc-flash detector input to implementarc-flash protection. settable arc-flash phase and residual overcurrent elements combined with the arcflash light-detection element provide secure, reliable, and fast-acting arc-flash event protection. ➤ optional protection features. use the sel-849 with voltage input option to provide over- and undervoltage, over- and underfrequency, directional power, loss-of-potential, and power factor elements.➤ operator controls. use a double-shielded, 600 v mcc-rated, sel c627m category 5e ethernetcable, as long as 7.62 meters (25 feet), to connect the sel-849 relay to an optional sel-3421 motorrelay human-machine interface (hmi) or sel-3422 motor relay hmi module. both hmi modulesprovide eight user-programmable tricolor led targets, two fixed targets, and motor control andfunction keys. the sel-3421 motor relay hmi module also has a full graphical display withnavigation and soft keys. ➤ integrated web server. log on to the built-in web server to view metering and monitoring data and todownload events, sequential events recorder (ser), motor start reports, etc. use the server also toview, edit, and save relay settings or to perform relay firmware upgrades.➤ relay and logic settings software. acselerator quickset® sel-5030 software reduces engineering costs for relay settings and logic programming and simplifies development of selogic® control equations.➤ metering and monitoring. use built-in metering functions to eliminate separately mounted meteringdevices. analyze ser reports and oscillographic event reports for rapid commissioning, testing, andpost-fault diagnostics. additional monitoring functions include the following:➣ motor start reports➣ motor start trending➣ load profile monitoring➣ motor operating statistics➣ demand metering➤ direct connect 690 vac voltage inputs. optional voltage inputs allow for wye-connected, opendelta-connected, or single voltage inputs to the relay. use potential transformers to connect highervoltages.➤ control inputs and outputs. six or twelve (optional) internally wetted control inputs or six externally wetted to 24/48 vdc/vac or 110/125 vdc/vac control inputs and four contact outputs (oneform c and three form a) are for control and status indication.➤ analog output (optional). use an optional 0–20 ma programmable analog output to display anyrelay analog quantities on an external analog meter.➤ communications ports.➣ port 1 and an optional port 3, eia-232 or eia-485 configurable serial ports➣ port 2 single or dual (optional) 10/100base-t ethernet port(s)➣ hmi ethernet port➤ communications protocols.➣ modbus® rtu and tcp/ip➣ iec 61850 (optional ethernet-based protocol)➣ dnp3 serial, dnp3 lan/wan➣ simple network time protocol (sntp)➣ ethernet/ip➣ parallel redundancy protocol (prp)➣ file transfer protocol (ftp)➣ telnet (sel ascii)➣ sel protocols➤ iec 60947-4-1 type 2 coordination compatible. for short circuits, the relay withstands as much as100 ka.
西门子S120/G120变频器报F30021接地故障维修
影像测量仪与一键闪测仪之间的差异
风速仪的选择
德国马尔齿轮测量中心的应用范围介绍
牛舍风机日常运行中的维护措施
美国SEL084900100000010继电器用途
怎么选择合适的海洋界标样式
焦化废水处理优化过程工艺流程介绍
HTT STB-R-230温控器 温度设置
网络搜索不吸水橡塑保温板价格查询
轴承的润滑
糖果生产设备选择食品级润滑剂需要注意什么问题？
AB面复合保温板原料匀质保温板 外墙水泥基匀质聚苯板
JB308-75机械部标准阀门型号选型方法
二手三效多级蒸发器
化验检测燃料油锅炉油的热值的仪器都能测试什么？
混流风机的优势主要体现在这几方面
不同食品饮料的pH值是多少？测食品饮料PH值还得是这个.....
怎么选择合适的障碍物浮标样式
超声波清洗机厂家使用主要参考参数？