Basic knowledge about the motor
34. The six odd-numbered junction groups of a three-phase transformer are 1, 3, 5, 7, 9, and 11. The 6 even numbered group numbers are 0, 2, 4, 6, 8, and 10.
35. In the AC winding, the number of slots per phase per pole is q = q = Z/2p/m (assuming the number of slots is Z, the number of pole pairs is p, and the number of phases is m). In the AC winding, both the 120o phase band and the 60o phase band are used. Among them, the 60o phase band has a higher fundamental winding coefficient and back electromotive force.
36. The symmetrical component method can be used to analyze the asymmetric operation of transformers and synchronous motors. The premise of the application is that the system is linear, so the superposition principle can be applied to decompose the asymmetric three-phase power system into positive sequence and negative sequence. Three sets of symmetrical three-phase systems such as zero sequence.
Fuan Zhongzhi Pump Co., Ltd
registered the trademark "ZOZHI"
Add:No.155 Shangcun Qinxiyang Industry Zone,Fuan city,Fujian,China
Tel:+86 0593 6532656 Fax: +86 0593 6531158
Mobile: +86.137.0604.0131 E-mail: sales@zz-pump.com
Website: www.zz-pump.com
www.electricmotorwaterpump.com
