RADISYS 61-0348-29E自动化控制模块

产品详细资料
变压器过载变压器过载元件使用每个绕组的A相电流来计算变压器负载。计算假设wInding上有额定电压，因此负载实际上是额定负载电流的百分比。7.6.3.1操作水平 向绕组1的a相注入基频电流。 将电流信号增加到刚好高于变压器过载拾取设置的值（考虑CT比和额定MVA相电流以正确设置电流）。该元件应在其设置的时间延迟之后运行。 检查跳闸、拾取（和报警，如果选择）指示灯是否亮起，并显示以下其中一项：锁定：前过载或操作：前过载 降低电流，直到元件复位。复位值应约为操作值的97%。 如果目标功能设置为“自复位”，则验证拾取和报警指示灯是否复位。跳闸LED应保持锁存状态。操作时间使用第7–44页频率元件测试中的设置，并启用间隔计时器， 将电流水平设置为元件工作水平的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 XFORMER过载 变压器过载延迟设置。注：如果启用了逻辑输入的阻塞，则可以按照先前对其他元件的测试中所述进行测试。注意事项本节中概述的程序明确涉及745继电器，不包括745外部任何设备的操作/调试或投入使用。用户应该已经进行了CT定相、比率测量、饱和曲线验证、绝缘测试、连续性和电阻测量等测试。7.7.2程序 将所有设置和逻辑恢复到所需的在用值。 根据测试继电器时准备的检查表进行验证。 将所有745个设定点上传到计算机文件并打印以进行终检查，以确认所有设定点都是正确的。 设置745时钟（日期和时间）。
Transformer Overload The transformer overload element uses the phase A current of each winding to compute a transformer loading. The computation assumes a rated voltage on the wInding, hence the loading is effectively a percent of rated load current. 7.6.3.1 Operating Level  Inject a fundamental-frequency current into phase a of winding 1.  Increase the current signal to a value just above the transformer overload pickup setting (take into account the CT ratio and the ratedMVA phase current to set the current correctly). The element should operate after its set time delay.  Check that the Trip, Pickup (and Alarm if selected) LEDs are on, and one of the following is displayed: LATCHED: Xformer Overload or OPERATED: Xformer Overload  Lower the current until the element resets. The reset value should be approximately 97% of the operate value.  Verify that the Pickup and Alarm LEDs reset if the target function is set to Self-resetting. The Trip LED should remain latched.Operating Time Using the setup in Frequency element testing on page 7–44 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  XFORMER OVERLOAD  TRANSFORMER OVERLOAD DELAY setting. Note The blocking from logic input, if enabled, can be tested as described in earlier tests for other elements.Precautions The procedure outlined in this section is explicitly concerned with the 745 relay and does not include the operation/commissioning or placing into service of any equipment external to the 745. Users should have already performed such tests as phasing of CTs, ratio measurement, verification of saturation curve, insulation test, continuity and resistance measurements. 7.7.2 Procedure  Restore all settings and logic to the desired in-service values.  Verify against the check list prepared while testing the relay.  Upload all the 745 setpoints to a computer file and print for a final inspection to confirm that all setpoints are correct.  Set the 745 clock (date and time).
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