产品详细资料
有必要跟踪在这些调试步骤过程中对设置进行的修改/更改,并确保所有设置在测试结束时返回到“在用”值,在将继电器投入使用之前。介电强度测试745的额定值为1.9 kV AC持续1秒或1.6 kV持续1分钟(根据UL 508),继电器触点、CT输入、VT输入和安全接地端子G12之间的隔离。需要采取一些预防措施,以防止745在这些测试过程中损坏。在控制电源和滤波器接地端子G11之间使用滤波器网络和瞬态保护钳。这种滤波旨在滤除高压瞬态、射频干扰(RFI)和电磁干扰(EMI)。施加连续高电压可能会损坏滤波电容器和瞬态抑制器。在测试控制电源和跳闸线圈监督期间,断开滤波器接地端子G11。CT输入、VT输入和输出继电器不需要任何特殊预防措施。在任何情况下,都不得对RTD、模拟输入、模拟输出、数字输入和RS485通信端口等低压输入(<30V)进行介电强度测试。 在给任何逻辑输入通电之前,确保这样做不会导致继电器跳闸信号在闭锁开关之外发出。在开始这些测试之前,这些应该已经打开。如果您愿意,您可以通过设置:•S3逻辑输入来禁用逻辑输入功能 逻辑输入1(16) 逻辑输入1(16)功能:“禁用”
It is necessary to keep track of modifications/changes made to settings during the course of these commissioning steps and ensure that all settings are returned to the ‘in-service’ values at the end of the tests, prior to placing the relay into service.Dielectric Strength Testing The 745 is rated for 1.9 kV AC for 1 second or 1.6 kV for 1 minute (as per UL 508) isolation between relay contacts, CT inputs, VT inputs and the safety ground terminal G12. Some precautions are required to prevent 745 damage during these tests. Filter networks and transient protection clamps are used between control power and the filter ground terminal G11. This filtering is intended to filter out high voltage transients, radio frequency interference (RFI), and electromagnetic interference (EMI). The filter capacitors and transient suppressors could be damaged by application continuous high voltage. Disconnect filter ground terminal G11 during testing of control power and trip coil supervision. CT inputs, VT inputs, and output relays do not require any special precautions. Low voltage inputs (< 30 V) such as RTDs, analog inputs, analog outputs, digital inputs, and RS485 communication ports are not to be tested for dielectric strength under any circumstance. Prior to energizing any of the Logic Inputs, ensure that doing so will not cause a relay trip signal to be issued beyond the blocking switches. These should have been opened prior to starting on these tests. If you wish, you can disable the Logic Input functions by setting: • S3 LOGIC INPUTS LOGIC INPUT 1 (16) LOGIC INPUT 1(16) FUNCTION: “Disabled”
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