阅读说明：本技术 用于近似地确定变压器的高压侧上的电压的方法和设备 (Method and device for approximately determining the voltage on the high-voltage side of a transformer ) 是由 V·萨克舍伍斯基 T·比洛 弗洛里安·劳舍尔 于 2020-03-05 设计创作，主要内容包括：本发明涉及一种基于测量到的变压器(4)的低压侧上的电压近似地确定变压器(4)的高压侧上的电压的方法。该方法具有以下步骤：测量变压器(4)的低压侧上的三角电压(u-(Δ))和串电压(uγ)以及相角(Φγ)；将低压侧上的串电压(uγ)和相角(Φγ)变换成正序系统或负序系统的正序系统电压和负序系统电压(u～(*)-(+),u～(*)-(-))以及相角(Φ～(*)-(+),Φ～(*)-(-))；从低压侧上的正序系统或负序系统的正序系统电压和负序系统电压(u～(*)-(+),u～(*)-(-))以及相角(Φ～(*)-(+),Φ～(*)-(-))确定高压侧上的正序系统或负序系统的正序系统电压和负序系统电压(u～(*)-(+),u～(*)-(-))以及相角(Φ～(*)-(+),Φ～(*)-(-))；从测量到的低压侧上的三角电压(u-(Δ))和串电压(uγ)以及相角(Φγ)确定高压侧上的零序系统的零序系统电压(u～(*)-(0))和相角(Φ～(*)-(0))的估计值；以及将正序系统电压、负序系统电压和零序系统电压(u～(*)-(+),u～(*)-(-),u～(*)-(0))以及相角(Φ～(*)-(+),Φ～(*)-(-),Φ～(*)-(0))变换成变压器(4)的高压侧上的串电压和/或三角电压。本发明还涉及一种被配置用于执行该方法的设备。(The invention relates to a method for approximately determining the voltage on the high-voltage side of a transformer (4) on the basis of a measured voltage on the low-voltage side of the transformer (4). The method comprises the following steps: measuring the delta voltage (u) on the low-voltage side of the transformer (4) Δ ) And string voltage (u γ) and phase angle (Φ γ); transforming the string voltage (u γ) and the phase angle (Φ γ) on the low voltage side into a positive-sequence system voltage and a negative-sequence system voltage (u γ) of a positive-sequence system or a negative-sequence system * + ,u * ‑ ) And phase angle (phi) * + ,Φ * ‑ ) (ii) a From the positive and negative sequence system voltages (u, u) of the positive or negative sequence system on the low voltage side * + ,u * ‑ ) And phase angle (phi) * + ,Φ * ‑ ) Determining a positive-sequence system voltage and a negative-sequence system voltage (u) of a positive-sequence system or a negative-sequence system on a high-voltage side * + ,u * ‑ ) And phase angle (phi) * + ,Φ * ‑ ) (ii) a From the measured delta voltage (u) on the low-voltage side Δ ) Determining a zero sequence system voltage (u γ) of the zero sequence system on the high voltage side by the sum string voltage (u γ) and the phase angle (Φ γ) * 0 ) And phase angle (phi) * 0 ) An estimated value of (d); and combining the positive sequence system voltage, the negative sequence system voltage and the zero sequence system voltage (u) * + ,u * ‑ ,u * 0 ) And phase angle (phi) * + ,Φ * ‑ ,Φ * 0 ) Into a string voltage and/or a delta voltage on the high-voltage side of the transformer (4). The invention also relates to a device configured for carrying out the method.)