| 微机消谐有哪些特性？ |
| 添加时间：2019/3/11 16:09:58 浏览次数： |
| 当PT开口电压大于30V时,系统出现故障。消谐装置开始对此信号进行数据采集 ,通过电路对信号进行数字测量、滤波、放大等数字信号处理技术,然后对检测到的数据进行分析、计算,得出故障类型。如果 当前是铁磁谐振,系统立即启动消谐电路,使固态继电器导通,让铁磁谐振在阻尼作用下迅速消失。这样的一个设备也就是微机消谐,那么其除了有这样的功能外,还有哪些特性呢? When PT open voltage is greater than 30V, the system fails. The harmonic elimination device begins to collect the data of the signal. The digital signal processing technologies such as digital measurement, filtering and amplification are carried out through the circuit. Then the detected data are analyzed and xuanzhuang.89ix.comchengde.71ix.cngaonianji.07858.net shepiguan.89ix.combianyaqipd.37ix.com.cn laliji.07858.netcalculated, and the fault types are obtained. If it is ferroresonance at present, the system immediately starts the harmonic elimination circuit to turn on the solid-state relay and make the ferroresonance disappear rapidly under the action of damping. Such a device is also a computer harmonic elimination, so in addition to such a function, what other characteristics do it have? 1、采用特殊合金进行制作,更采用单片大通流非线性元件,消除了原多片并联结构的消谐装置中通流不均匀现象,性能更加稳定。 1. Making of special alloys and using single-chip large current non-linear components can eliminate the non-uniform flow in the original multi-chip parallel structure harmonic elimination device, and the performance is more stable. 2、PT高压熔丝一般为0.5A,而烧断时可能导致PT中性点不接地及其他事故。由于采用更优秀材料及工艺生产,一次消谐器通流能力高达500mA。 2. PT high-voltage fuse is generally 0.5A, and burning may lead to non-grounding of PT neutral point and other accidents. Due to the use of better materials and process production, the primary harmonic eliminator has a current capacity of up to 500 mA. 3、针对半绝缘PT提供特制半绝缘消谐装置(带D型),可以有效限制消谐装置两端电压,从而保护中性点绝缘。 3. Providing special semi-insulating harmonic eliminating device (with D type) for semi-insulating PT can effectively limit the voltage at both ends of the harmonic eliminating device, thus protecting the neutral point insulation. 4、装置体积超小,尤其适合于PT柜及手车柜中安装。整个消谐装置采用金属材料直接连接,无瓷套,无炸裂危险。 4. The device is very small, especially suitable for installation in PT cabinet and handcart cabinet. The whole harmonic elimination device is directly connected with metal material, without porcelain bushing and explosion danger. 5、针对部分电压互感器安装消谐装置后开口三角出现较大谐波电压,可有效抑制PT开口三角两端的谐波电压。 5. For some voltage transformers with harmonic elimination devices, large harmonic voltage appears in the open triangle, which can effectively suppress the harmonic voltage at both ends of the PT open triangle. |
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