一个三角形条带的外观。表面法线？或绕组？
Appearance of a triangle strip. Surface normals? Or windings?
三相绕组，开式三角形连接。
三相三线绕组，三角形或网状连接，接地或不接地。
Three-phase winding, open delta connection. Ungrounded or grounded can be specified.
绕组 ，四线三角形连接，接地或不接地。
Three-phase winding, zigzag connection, ungrounded or grounded.
三相三线绕组，三角形或网状连接，接地或不接地。
Three-phase winding, 4-wire delta connection. Ungrounded or grounded can be specified.
三相三线绕组，三角形或网状连接，接地或不接地。
Three-phase winding, 4-wire delta connection. Ungrounded or grounded can be specified.
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