Is china's 3 phase voltage delta or Y?

China primarily uses a three-phase voltage system configured in a star (Y) arrangement for its power distribution. The standard voltage levels for three-phase systems in China are typically 380V for the line-to-line voltage and 220V for the line-to-neutral voltage. However, delta configurations are also used in some industrial applications and for specific equipment. Overall, the dominant system for general power distribution is the star (Y) configuration.