Radisys 061-03448-0050工控

产品详细资料
设定点写入访问745设计包含硬件和密码安全功能，以防止未经授权的设定点更改。消息 工厂[] 服务参见第5-112页消息 S6页结束第5章：设定点概述745变压器保护系统-说明手册5-5必须在继电器背面的设定点接入端子上安装硬件跳线，以便使用前面板键对新的设定点进行编程。当通过连接到通信端口的计算机进行设置点编程时，不需要设置点访问跳线。也可以启用密码保护。启用时，745在输入任何设定点之前请求一个数字密码。作为一项额外的安全措施，当连续三次错误输入密码时，会产生轻微的自检错误。引言对于变压器差动保护，有必要校正每个绕组的CT二次电流的大小和相位关系，以便在正常操作条件下获得接近零的差动电流。传统上，这是通过在变压器处插入CT或抽头继电器绕组和补偿CT连接来实现的。745通过将所有CT连接为Y形（极性标记指向远离变压器）简化了CT配置问题。所有相位角和幅值校正以及零序电流补偿都是根据用户输入的设定点自动执行的。
Setpoint Write Access The 745 design incorporates hardware and passcode security features to provide protection against unauthorized setpoint changes. MESSAGE  FACTORY [] SERVICE See page 5–112 MESSAGE  END OF PAGE S6 CHAPTER 5: SETPOINTS OVERVIEW 745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 5–5 A hardware jumper must be installed across the setpoint access terminals on the back of the relay to program new setpoints using the front panel keys. When setpoint programming is via a computer connected to the communication ports, no setpoint access jumper is required. Passcode protection may also be enabled. When enabled, the 745 requests a numeric passcode before any setpoint can be entered. As an additional safety measure, a minor self-test error is generated when the passcode is entered incorrectly three times in a row.Introduction For transformer differential protection, it is necessary to correct the magnitude and phase relationships of the CT secondary currents for each winding, in order to obtain near zero differential currents under normal operating conditions. Traditionally, this has been accomplished using interposing CTs or tapped relay windings and compensating CT connections at the transformer. The 745 simplifies CT configuration issues by having all CTs connected Wye (polarity markings pointing away from the transformer). All phase angle and magnitude corrections, as well as zero-sequence current compensation, are performed automatically based upon user entered setpoints.
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，

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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