产品详细资料
重置水平应为操作水平的97%。当元件复位时,如果W1 RESTD GND FAULT TARGET(W1复位接地故障目标)被选择为“Latched”(锁定),则跳闸和信息LED应保持点亮。否则,只有跳闸LED应保持亮起。7.5.14.6绕组2或3元件由于第二个限制性接地故障元件可以设置与个元件绕组完全不同的参数,因此有必要对每个绕组重复本节所述的全套测试。为了测试第二元件, 禁用除绕组2(或绕组3(视情况而定)限制接地故障元件外的所有保护元件。 将接地电流信号连接到端子F12和E12。 重复本节中对绕组1元件所述的所有测试。注意:如果启用了来自逻辑输入的阻塞,则可以按照前面对其他元素的测试所述进行测试。7.5.15负序时间过电流7.5.15.1说明本程序验证负序时间的过电流性能是否与在用设置相匹配。由于这些元件可以具有多个时序曲线中的任何一个,因此在测试元件之前,应该准备预期操作时间与施加电流的关系表。负序元件测量连接到相输入CT的相电流信号的导出的负序分量。有关时序曲线的更多信息,请参阅第5-58页的时间过电流曲线。
The reset level should be 97% of operate level. When the element resets, the Trip and Message LEDs should remain on if the W1 RESTD GND FAULT TARGET was selected as “Latched”. Otherwise only the Trip LED should remain on. 7.5.14.6 Winding 2 or 3 Elements Since the second restricted ground fault element can be set with completely different parameters than the first element winding, it is necessary to repeat the full set of tests described in this section for each winding. To test the second element, Disable all protection elements except for the winding 2 (or winding 3 as appropriate) restricted ground fault element. Connect the ground current signal to terminals F12 and E12. Repeat all the tests described for the winding 1 element in this section. Note The blocking from logic input, if enabled, can be tested as described in earlier tests for other elements. 7.5.15 Negative-sequence Time Overcurrent 7.5.15.1 Description This procedure verifies that the negative-sequence time overcurrent performance matches the in-service settings. Since these elements can have any one of a multitude of timing curves, a table of expected operating times versus applied current should be prepared prior to testing the elements. The negative-sequence element measures the derived negative-sequence component of the phase current signals connected to the phase input CTs. Refer to Time Overcurrent Curves on page 5–58 for additional information on timing curves.
主营产品简介
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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