燃机卡DS200TCEBG1AAB系统模块

产品标题:燃机卡DS200TCEBG1AAB系统模块备件

型号： DS200TCEBG1AAB

品牌：GE

                                                                     产品详情资料：

差分CT可以是如下图所示的堆芯平衡。或者，差动输入中每相两个CT的总和将提供更大的保护区。如果使用两个CT的总和，则观察CT极性很重要。也可以使用如下所示的相位CT来实现求和方法。469有三个交流电压输入通道，每个通道都有一个隔离变压器。电压输入上没有内部保险丝或接地连接。VT比率为150.00:1。两个VT连接为开放三角形（见图2-10：第2-8页的典型接线图）或Y形（见下文）。电压通道在内部以Y形连接，这意味着为开放式三角电压互感器安装B相输入和469中性端子之间的典型接线图三角电源连接上所示的跳线。

                         产品英文详情资料：

The differential CTs may be core balance as shown in the first figure below. Alternatively, the summation of two CTs per phase into the differential input will provide a larger zone of protection. If the summation of two CTs is used, observation of CT polarity is important. The summation method may also be implemented using the phase CTs as shown below. They will have to have the same CT ratio.The 469 has three channels for AC voltage inputs, each with an isolating transformer. There are no internal fuses or ground connections on the voltage inputs. The maximum VT ratio is 150.00:1. The two VT connections are open delta (see Figure 2–10: TYPICAL WIRING DIAGRAM on page 2–8) or wye (see below). The voltage channels are connected in wye internally, which means that the jumper shown on the delta-source connection of the TYPICAL WIRING DIAGRAM, between the phase B input and the 469 neutral terminal, must be installed for open delta VTs.

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