Medium voltage outdoor voltage transformer is an indispensable key measuring device in the power system. It is mainly used to realize accurate transformation and electrical isolation of medium voltage grid voltage in outdoor environment. Its core task is to convert the high voltage of the primary system into a standard low voltage signal in proportion, providing a safe and reliable data source for metering, monitoring and protection devices. Medium voltage outdoor voltage transformers are widely installed in substations, distribution lines or at the incoming lines of large industrial users.
This equipment is primarily used for energy metering, connecting energy meters to ensure accurate calculation and settlement of user power consumption or power generation and access to the grid. At the same time, it also provides real-time bus or line voltage information for the power dispatching center, which is an important basis for monitoring the operation status of the power grid. The secondary voltage signal output by the medium voltage outdoor voltage transformer is the core criterion for whether the relay protection device can accurately operate. When a short circuit, grounding or other faults occur in the line, the protection device quickly determines the fault type and location based on the voltage information it provides, and cuts off the fault circuit in time to ensure system safety and equipment integrity. Its excellent insulation level and outdoor protection capabilities (such as rainproof, dustproof, and anti-corrosion) ensure long-term stable operation in harsh climates.
For factories and enterprises that need to provide their own power supply or access to the medium-voltage power grid, the medium voltage outdoor voltage transformer installed in the high-voltage cabinet of the power distribution room or the outdoor line point is also very important, providing a voltage reference for internal electricity metering, power factor compensation devices, and protection and control of their own power equipment. The stable and reliable operation of the medium-voltage outdoor voltage transformer is a solid technical support for ensuring the safe, economical, and efficient operation of the medium-voltage power grid, and achieving accurate metering and rapid fault removal.