As an important power supply equipment in the power system, the stable operation of the transformer is directly related to the economic benefits of the end users (enterprises and communities) and the power grid management department, with the focus on high-load railway enterprises that rely on the power grid for operation. The electrified high-speed railway is a major power consumer of the power grid. According to recent statistics, the traction constant is 3,500 tons and 40KM single line, and the daily electricity consumption reaches 100,000 kWh. In order to ensure the operation of power facilities, it is particularly important to test the transformer ratio.
The transformer ratio test is mainly to avoid transformer turn-to-turn short circuit failure, open circuit, incorrect connection, and common faults inside or contact of the transformer power switch.
In general, we can choose a ratio tester to test the ratio of various types of transformers. The XHBB128 series transformer ratio tester uses a full Chinese menu, which is simple and convenient to operate. It can perform single-phase measurement and automatic testing of three-phase windings. The polarity can be measured for both single-phase and three-phase windings. The connection group can be selected arbitrarily. The ratio value, error, tap value and other parameters of AB, BC, and CA phases can be measured at one time, and the group identification can be automatically performed. The instrument is small in size and easy to carry and use outdoors.
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