Transformer substation grounding network frequency response test device
A technology for frequency response testing and substation grounding grids, which is applied to frequency measurement devices and fault locations, can solve problems such as inability to judge grounding grid section changes, grounding grid damage, and cross-section reduction, and achieve strong suppression, smooth operation, and The effect of ensuring stability
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 1 A substation grounding grid frequency response testing device shown includes a power supply module 1, a frequency generator module 2 for generating sinusoidal voltage signals of various frequencies, and a power amplification module 3 for power amplification of sinusoidal voltage signals . The voltage and current acquisition module for collecting and measuring the voltage and current of the grounding grid 4. The intelligent control module 5 for controlling the output frequency of the frequency generator module and calculating the impedance of the grounding grid. The voltage and current acquisition module, the intelligent control module, the frequency The generator module and the power amplifier module are connected in sequence;
[0028] The power supply module provides the power supply for each module of the te...
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