CV-OPCINT OPC集成器

产品标题:CV-OPCINT OPC集成器   

型号： CV-OPCINT

品牌：霍尼韦尔

                                                                   产品详情资料：

469有三个相电流输入通道，每个通道都有一个隔离变压器。电流输入上没有内部接地连接。如果装置被撤回，469外壳上的各相CT电路会被自动机构短路。应选择相位CT，使FLA不小于额定相位CT一次的50%。理想情况下，应选择CT初级相位，以使FLA为CT初级相位的***，或稍小，绝不超过。这将确保电流测量的精度。相CT一次电流为5000 A。469可正确测量相电流额定值的20倍。由于转换范围较大，订购时***1 A或5 A CT次级，以确保装置中安装了适当的插入式CT。所选CT能够驱动469相CT负载（额定值见***-5页***.2节：规范）。

                         产品英文详情资料：

The 469 has three channels for phase current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. If the unit is withdrawn, each phase CT circuit is shorted by automatic mechanisms on the 469 case. The phase CTs should be chosen so the FLA is no less than 50% of the rated phase CT primary. Ideally, the phase CT primary should be chosen such that the FLA is *** of the phase CT primary or slightly less, never more. This will ensure maximum accuracy for the current measurements. The maximum phase CT primary current is 5000 A. The 469 correctly measures up to 20 times the phase current nominal rating. Since the conversion range is large, 1 A or 5 A CT secondaries must be specified at the time of order to ensure the appropriate interposing CT is installed in the unit. The chosen CTs must be capable of driving the 469 phase CT burden (see Section 1.2: SPECIFICATIONS on page 1–5 for ratings).

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