箱变 高压电缆计算

箱变高压电缆计算
English Answer：
How to Calculate High Voltage Cables for a Transformer Substation.
When designing a transformer substation, it is important to calculate the size of the high voltage cables that will be used to connect the transformer to the power grid. The size of the cables will depend on the following factors:
The voltage of the power grid.
The current that the transformer will draw.
The length of the cables.
The type of cable that will be used.
The following formula can be used to calculate the size of the cables:
Cable size (AWG) = (Voltage Current) / (Voltage drop Length)。

Where:
Voltage is the voltage of the power grid in volts.
Current is the current that the transformer will draw in amps.
Voltage drop is the allowable voltage drop in the cables in volts.
Length is the length of the cables in feet.
The voltage drop is typically set at 5% of the voltage of the power grid. The length of the cables should be as short as possible to minimize the voltage drop. The type of cable that is used will depend on the specific application.
Chinese Answer：
变压器变电所高压电缆计算。

在设计变压器变电所时，计算将变压器连接到电网的高压电缆的尺寸非常重要。

电缆的尺寸取决于以下因素：
电网电压。

变压器将吸收的电流。

电缆长度。

将使用的电缆类型。

可以使用以下公式计算电缆尺寸：
电缆尺寸 (AWG) = (电压电流) / (电压降长度)。

其中：
电压为电网电压（以伏特为单位）。

电流为变压器将吸收的电流（以安培为单位）。

电压降为电缆中允许的电压降（以伏特为单位）。

长度为电缆长度（以英尺为单位）。

电压降通常设置为电网电压的 5%。

电缆长度应尽可能短，以最大程度地减少电压降。

所用电缆的类型将取决于具体应用。