ALSTOM SDK-C0148工控备件模块

产品详细资料
在主源上检测到有效频率后，跟踪将切换回主源。如果不是所有源都有稳定的频率信号，那么跟踪频率默认为标称系统频率。相位、瞬变和谐波所有波形在每个周期都要经过八次处理，使用直流衰减去除滤波器和离散傅立叶变换（DFT）。由此产生的相量具有故障电流瞬变，并且去除了所有谐波。这导致过电流继电器非常安全可靠，不会过度工作。交流电流输入的处理直流衰减去除滤波器是一种短窗口数字滤波器，用于去除故障发生时存在的不对称电流中的直流衰减分量。这是针对用于过电流保护的所有电流信号进行的；电压信号使用相同的直流衰减去除滤波器。该滤波器可确保过电流保护不会过度。离散傅立叶变换（DFT）正好使用一个采样周期来计算相量，该相量表示基频下的信号；去除了所有谐波分量。所有随后的计算（如功率等）都是基于电流和电压相量，这样得到的值就没有谐波分量。RMS（均方根）值是在滤波之前从一个样本周期中计算出来的。
Upon detecting valid frequency on the main source, the tracking will be switched back to the main source. If a stable frequency signal is not available from all sources, then the tracking frequency defaults to the nominal system frequency. Phasors, Transients, and Harmonics All waveforms are processed eight times every cycle with a DC decaying removal filter and a Discrete Fourier Transform (DFT). The resulting phasors have fault current transients and all harmonics removed. This results in an overcurrent relay that is extremely secure and reliable and one that will not overreach. Processing of AC Current Inputs The DC Decaying Removal Filter is a short window digital filter, which removes the DC decaying component from the asymmetrical current present at the moment a fault occurs. This is done for all current signals used for overcurrent protection; voltage signals use the same DC Decaying Removal Filter. This filter ensures no overreach of the overcurrent protection. The Discrete Fourier Transform (DFT) uses exactly one cycle of samples to calculate a phasor quantity which represents the signal at the fundamental frequency; all harmonic components are removed. All subsequent calculations (e.g. power, etc.) are based upon the current and voltage phasors, such that the resulting values have no harmonic components. RMS (root mean square) values are calculated from one cycle of samples prior to filtering.
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。

主营产品各种模块/卡件，控制器，触摸屏，伺服驱动器。

优势：供应进口原装正品，专业停产配件，

发货快，货期精准，

主营品牌包括 ABB贝利、GE/FUANC、FOXBORO、英维思TRICONEX 、本特利BENTLY、A-B罗克韦尔、艾默生EMERSON 、OVATION、MOTOROLA、XYVOM、霍尼韦尔HONEYWELL 、力士乐REXROTH、KUKA、NI、DEIF、横河、伍德沃德WOODWARD、瑞恩、施耐德SCHNEIDER 、安川、 穆格MOOG、PROSOFT等品牌。

只卖库存产品;出完需订货!价格以客服说明为准!!订货货期以客服说明为准，有任何疑问请联繁客服! Limited stock, Contact US!

●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