Radisys EXM18-RS422使用方法模块卡件

产品详细资料
增加I2，直到元件再次工作。 计算该点的坡度。它应该等于终坡度。如果拐点与I1的选定值相差很大，则斜率的两个值将相同。 为了测量膝盖点，请选择刚好高于膝盖点值的I1值。 增加I2，直到元件复位。 计算坡度。该值应等于初始坡度值。 将I1少量增加，例如10%，然后调整I2，直到获得新的操作点。 计算坡度。 重复此操作，直到坡度值等于终坡度。拐点值是坡度值发生变化时的约束电流值。注意：在进行斜坡拐点测试时，请记住自动配置对馈送到差动元件的电流信号大小的影响。7.5.2.9二次谐波抑制要测量阻止谐波抑制差动元件运行所需的二次谐波百分比，请使用以下连接图。电流作为工作电流被提供给A相元件。 闭合开关S1。将交流电流IAC设置为2倍额定CT次级。将IDC设置为在S4 ELEMENTS下获得高于二次谐波抑制设置的谐波含量 有差别的 谐波抑制 谐波抑制水平。 根据以下公式计算二次谐波含量的百分比。如果用平均响应/读数表测量电流：  如果使用RMS响应/读数表测量电流，则： 打开并重新闭合S1。继电器不应工作。 降低IDC，直到元件工作。使用上述方程计算此时二次谐波的百分比。计算的谐波百分比值应等于继电器设置
Increase I2 until the element operates again.  Calculate the slope at this point. It should be equal to the final slope. If the kneepoint is much different than the selected value of I1, the two values of slope will be the same.  For an accurate measurement of the kneepoint, select a value of I1 just above the kneepoint value.  Increase I2 until the element resets.  Calculate the slope. The value should be equal to the initial slope value.  Increase I1 by a small amount, say 10%, and adjust I2 until a new operating point is obtained.  Calculate the slope.  Repeat until the slope value equals the final slope. The kneepoint value is the value of the restraint current at which the slope changed in value. Note Keep in mind the effects of auto-configuration on the magnitude of the current signal fed to the differential elements when conducting the slope kneepoint test. 7.5.2.9 Second Harmonic Restraint To measure the percentage of second harmonic required to block the operation of the harmonic-restraint differential elements, use the connection diagram shown below. Current is supplied as an operating current to the phase A element. Close switch S1. Set the AC current, IAC to 2 × rated CT secondary. Set IDC to obtain harmonic content above the 2nd harmonic restraint setting under S4 ELEMENTS  DIFFERENTIAL  HARMONIC INHIBIT  HARMONIC INHIBIT LEVEL.  Calculate the percent second harmonic content from the following equations. If the current is measured with average-responding/reading meters:   If the current is measured with RMS-responding/reading meters, then: Open and reclose S1. The relay should not operate.  Decrease IDC until the element operates. Calculate the percent of second harmonic at this point using the equations above. The calculated percent harmonic value should equal the relay setting
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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.

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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

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Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

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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