RADISYS EXM-MX500工控

产品详细资料
传统上，这个问题是通过将变压器（绕组1）的Y形侧上的CT以三角形布置连接来解决的。这补偿了在三角形侧（绕组2）中引入的相位角滞后。745基于以下设定点在内部执行该相位角校正。设置S2 SYSTEM SETUP（S2系统设置） 变压器 变压器类型为“Y/d30°”。745支持100多种双绕组和三绕组变压器。第5-13页的表5-1:变压器类型提供了关于每种变压器类型的以下信息：如变压器类型表的“Y/d30°”条目所示，相位角校正（或相移）在绕组1中引入了30°滞后。这种滞后在第5-24页的相移中进行了描述。该表提供了关于每种相移类型的以下信息：5.2.5零序部件拆卸1。如果零序电流可以流入和流出一个变压器绕组（例如接地的Y形或Z形绕组），而不能流入和流出另一个绕组（例如三角形绕组），则外部接地故障将导致差动元件不正确操作。传统上，这个问题是通过三角连接星形/三角变压器星形侧的CT来解决的，这样一来，进入继电器的电流既经过相位校正，又没有零序电流。因为745软件模拟CT三角形连接，所以零序电流自动从具有至少一个三角形绕组的变压器的所有Y形或Z形绕组电流中去除。
Traditionally, this problem is solved by connecting the CTs on the wye side of the transformer (winding 1) in a delta arrangement. This compensates for the phase angle lag introduced in the delta side (winding 2). The 745 performs this phase angle correction internally based on the following setpoint. Set S2 SYSTEM SETUP  TRANSFORMER  TRANSFORMER TYPE to “Y/d30°”. The 745 supports over 100 two and three-winding transformer types. Table 5–1: Transformer types on page 5–13 provides the following information about each transformer type:As shown in the “Y/d30°” entry of the transformer types table, the phase angle correction (or phase shift) introduces 30° lag in winding 1. This lag is described in Phase shifts on page 5–24. This table provides the following information about each phase shift type: 5.2.5 Zero-sequence Component Removal 1. If zero-sequence current can flow into and out of one transformer winding (e.g. a grounded wye or zig-zag winding) but not the other winding (e.g. a delta winding), external ground faults will cause the differential element to operate incorrectly. Traditionally, this problem is solved by delta connecting the CTs on the wye side of a wye/delta transformer so that the currents coming to the relay are both phase corrected and void of zero-sequence current. Because the 745 software mimics the CT delta connection, the zero-sequence current is automatically removed from all Wye or zig-zag winding currents of transformers having at least one delta winding.
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●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