产品详细资料
当电流施加到单相时,负序电流分量由以下公式计算得出:(EQ 7.13)因此,相电流将是拾取设置的三倍。 当元件运行时,检查跳闸和拾取指示灯是否亮起,并显示以下其中一个:LATCHED a:W1 Neg Seq Inst OC或OPERATED a:W1 Neg Seq Inst OC 减小电流,直到元件复位。复位电平应为操作电平的97%。当元件复位时,如果W1 NEG SEQ INST OC TARGET被选择为Latched(锁定),则跳闸和消息LED应保持点亮。否则,只有跳闸指示灯应保持亮起。 重置指示灯并清除信息。7.5.16.4操作时间 在启用间隔定时器的情况下,使用第7–25页“常规测试设置”中的设置,将电流水平设置为元件操作水平的1.5倍,并通过闭合双极开关突然施加。 记录操作时间并与S4元件进行比较 阴性序列OC W1阴性序列 W1 NEG SEQ INST OC DELAY设置。7.5.16.5绕组2和3元件由于可以用与绕组1的元件完全不同的参数设置绕组2和三元件, 重复本节中对绕组1元件所述的全套测试。 将电源连接到端子X=H4和Y=G4,以测试绕组2元件。使用X=H7和Y=G7作为绕组3元件。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。
With current applied to a single phase, the negative sequence current component is calculated from: (EQ 7.13) Hence, the phase current will be three times the pickup setting. When the element operates, check that the Trip and Pickup LEDs are on and one of the following is displayed:LATCHED a: W1 Neg Seq Inst OC or OPERATED a: W1 Neg Seq Inst OC Reduce the current until the element resets. The reset level should be 97% of the operate level. When the element resets, the Trip and Message LEDs should remain on if the W1 NEG SEQ INST OC TARGET was selected as Latched. Otherwise, only the Trip LED should remain on. Reset indicators and clear messages. 7.5.16.4 Operating Time Using the setup in General test setup on page 7–25 with the Interval Timer enabled, set the current level to 1.5 times the operate level of the element and apply suddenly by closing the double-pole switch. Record the operate time and compare to the S4 ELEMENTS NEG SEQ OC W1 NEG SEQ INST OC W1 NEG SEQ INST OC DELAY setting. 7.5.16.5 Winding 2 and 3 Elements Because the winding 2 and 3 elements can be set with completely different parameters than the element for winding 1, Repeat the full set of tests described for the winding 1 element in this section. Connect the current supply to terminals X = H4 and Y = G4 to test the Winding 2 element. Use X = H7 and Y = G7 for the Winding 3 element. Note The blocking from logic input, if enabled, can be tested as described in earlier tests for other elements.
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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