F31X301DCCAPG1燃汽轮机控制

产品标题:F31X301DCCAPG1 PC板 燃汽轮机控制系统

型号： F31X301DCCAPG1

品牌：GE

                                                                 产品详情资料：

接下来，根据***小允许线路电压定义的***小允许启动电压，在与自定义曲线相交的点处为加速度保护曲线输入一个点。还输入该电压的锁定转子电流和失速时间。输入***线路电压的***个交点。再次，输入锁定转子电流和失速时间，这一次是***线路电压。根据***小允许线路电压和***线路电压之间的测量线路电压，从失速时间和交叉点创建的保护曲线将是动态的。这种保护方法与阻抗继电器一样，固有地考虑了电机速度的变化。阻抗的变化由电机端子电压和线路电流反映。对于任何给定的速度和任何给定的线路电压，只有一个线路电流值。

                         产品英文详情资料：

Next, a point must be entered for the acceleration protection curve at the point of intersection with the custom curve, based on the minimum allowable starting voltage as defined by the minimum allowable line voltage. The locked rotor current and safe stall time must also be entered for that voltage. A second point of intersection must be entered for *** line voltage. Once again, the locked rotor current and the safe stall time must be entered, this time for *** line voltage. The protection curve created from the safe stall time and intersection point will be dynamic based on the measured line voltage between the minimum allowable line voltage and the *** line voltage. This method of protection inherently accounts for the change in motor speed as an impedance relay would. The change in impedance is reflected by motor terminal voltage and line current. For any given speed at any given line voltage, there is only one value of line current.

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