As of my last knowledge update in September 2021, I'm not aware of a specific concept called a "transformer zero-sequence voltage grounding reactor." However, I can provide you with some information on related concepts that might help you understand the context better.
Transformers are electrical devices used to transfer electrical energy between two or more circuits through electromagnetic induction. They often consist of primary and secondary windings, and the relationship between the voltages and currents in these windings is determined by the turns ratio of the transformer.
Zero-sequence voltage refers to the component of voltage that is in phase and equal in magnitude in all three phases of a three-phase power system. It typically arises due to asymmetries in the system, such as ground faults or unbalanced loads. Zero-sequence voltage is important in power systems analysis and protection schemes.
Grounding reactors are used in electrical systems to limit fault currents and to control the flow of zero-sequence currents. They are connected in series with the grounding path and provide impedance to the flow of current. This can help mitigate the effects of ground faults and improve the overall stability and reliability of the power system.
A possible interpretation of the term "transformer zero-sequence voltage grounding reactor" could involve the use of a reactor connected in the grounding path of a transformer to manage or mitigate zero-sequence voltage or current issues. This could be done to prevent excessive zero-sequence current flow during ground faults or unbalanced conditions.
However, I must emphasize that this specific concept may not exist in the exact terminology you've provided, or it might be a very specialized term used in a specific industry or context developed after my last knowledge update. If you're looking for information on a more recent development or concept, I recommend consulting updated literature, industry standards, or experts in the field of electrical engineering and power systems.