All china transformers operate on the principle of electromagnetic induction, but their design, function, and winding configurations vary depending on their intended applications, whether residential or commercial. They are widely used in all aspects of the power system, from generation to distribution. Regardless of their type, such as auto-transformers, current transformers, or power transformers, transformers all serve the same purpose of either stepping up or stepping down voltage or current levels, without altering the value of electric power or frequency. In this article, we will highlight the primary distinctions between china distribution and chinese power transformers.
China Power transformers
A china power transformer is a high-capacity transformer used in generating stations or substations to transmit large amounts of electric power through power lines to the distribution center. These transformers are typically rated over 200 MVA with voltage ratings of 400+ kV, 200 kV, 110 kV, 66 kV, 33 kV, etc. They are designed to operate at full load with maximum efficiency.
The primary role of a chinese power transformer is to step up the low level of generated voltage to a high level for transmission through power lines to the chinese distribution substation. China Power transformers are also used to regulate voltage levels, provide electrical isolation between primary and secondary circuits, distribute power to consumers through distribution transformers, and provide a source of power to industries, households, and commercial establishments.
China Distribution transformers
A china distribution transformer is a device installed on a utility pole near the consumer load points that reduces high voltage to a safer level based on the utilization needs. These transformers are typically rated for various voltages such as 11kV, 6.6 kV, 3.3 kV, 440V, 230V, 120V, and 110V and are designed to operate at maximum efficiency of 60-70% load. The primary function of chinese distribution transformers is to lower the distributed voltage to a level that is suitable for consumers, both commercial and residential. In the UK and IEC-compliant countries, the typical voltage from the transformer secondary to the panels is 400V three-phase and 230V single-phase while in the US, it is 120V, 240V single-phase, and 277, 480V three-phase.
The primary function of china distribution transformers is to reduce high voltage levels to match the low voltage requirements of the system, such as 230V, 400V, 120V, or 240V. They also facilitate the distribution of electrical power to consumer units and provide both single-phase and three-phase power based on their specific needs.
To summarize, china power transformers, which are mainly step-up, are placed at the end or receiving point of lengthy and high voltage transmission lines. Meanwhile, chinese distribution transformers, usually mounted on poles, are located near the load terminals for domestic and industrial use, providing step-down utilization voltage at the consumer terminals.
