Electronic anti-high induced voltage interference transmission line power frequency parameter tester and method

Abstract

The invention provides an electronic power transmission line power-frequency parameter tester resisting high induced voltage interference, and a test method thereof. The tester comprises a test power supply and a power transmission line parameter measuring device, wherein the power transmission line parameter measuring device comprises an upper computer, a lower computer, a control switch and a data acquisition module. A test power supply is connected with the data acquisition module through the control switch. The upper computer is connected with the control switch through the lower computer. The lower computer is connected with the data acquisition module. The data acquisition module is connected with a to-be-tested circuit. The tester can improve test precision and test efficiency. The electronic power transmission line power-frequency parameter tester resisting high induced voltage interference is small in volume, light in weight, and is convenient to transport and apply.

Description

technical field [0001] The invention relates to an electronic anti-high induced voltage interference transmission line power frequency parameter tester and method, and belongs to the innovative technology of the electronic anti-high induced voltage interference transmission line power frequency parameter tester and method. Background technique [0002] Power frequency parameters of transmission lines are necessary parameters for power system analysis and calculation and selection of power system operation mode. They play a very important role, and their accuracy is directly related to the safe, reliable and economical operation of the power system. At present, the methods for obtaining power frequency parameters of transmission lines at home and abroad mainly include theoretical calculation methods and field measurement methods. However, because the actual situation of transmission lines, especially multi-circuit transmission lines on the same tower, is very complicated, it ...

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Problems solved by technology

However, the device uses physical transformers, voltage and current transformers, circuit breakers, and contactors, which are bulky, heavy, and consume a lot of power, which brings great inconvenience to transportation and measurement

At the same time, since the circuit has no current limiting device and the test power supply voltage is high, when the circuit is short, the test current is large, which can easily cause the current transformer to enter the nonlinear region, which seriously affects the test accuracy.

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