变压器容量测试仪校验装置的研制

Development of Verification Device for Transformer Capacity Tester

研制了一种变压器容量测试仪校验装置。基于短路阻抗测试的变压器容量测试仪,校验装置采取三相隔离的方法,用一个大功率可调电阻模拟各种容量变压器的短路阻抗,用更准确的电压、电流测量,计算出模拟变压器容量,与被检变压器容量测试仪测的值比较,得出误差。文章还给出了装置的校验方法,完成了变压器容量测试的量值溯源。

A verification device for transformer capacity tester is developed. Transformer capacity tester works are based on short-circuit impedance. This verification device uses a high power adjustable resistance to simulate the transformer short-circuit impedance with three-phase separation method, and with more accurate voltage and current measurement, calculates the transformer capacity from the simulation data, and gets the error comparing the value of transformer capacity tester. The article finally gives way to verify the device to complete the transformer capacity test traceability of value.