03
电气装置
Electrical Installation
13
3.4 电气结构
Electrical Configuration
系统的最大电压必须小于最大认证电压1000V/1500V，以及逆变器和系统中安装的其他电气设备的最大输入电压。 为确保这种
情况，需要在该位置的最低预期环境温度下计算阵列串的开路电压。 可以使用以下公式完成此操作。
The maximum voltage of the system must be less than the maximum certified voltage 1000V /1500V typically and the
maximum input voltage of the inverter and of the other electrical devices installed in the system. To ensure that this
is the case, the open circuit voltage of the array string needs to be calculated at the lowest expected ambient temperature
for the location. This can be done using the following formula.
最大系统电压≥N * Voc * [1 + TCvoc x (Tmin-25)]*1.25
Max System voltage ≥N * Voc * [1 + TCvoc x (Tmin-25)] *1.25
N:系统串联的最大组件数量
N: modules in series
VOC：每个组件的开路电压
Voc :Open circuit voltage of each module (refer to product label or data sheet)
Tcvoc：组件开路电压的温度系数
Tcvoc: Thermal coefficient of open circuit voltage for the module (refer to data sheet)
Tmin :最低温度
The lowest ambient temperature
当组件并联时，输出电流将等于每个分支电流的总和。 我们建议在与其他串联组件连接之前，应先考虑和其他串联组件的电流总和。
最大模块数N = Imax（最大保险丝电流）/(1.25*Isc)。 请参阅适用的区域和当地法规以了解更多保险丝要求
When the modules connect in parallel, the output current will be equal to the sum of each branch current. We suggest that
every series SPV module string should be fused prior to be connected with other strings. The maximum number of modules
N= Imax (maximum fuse current)/Isc. Please refer to the applicable regional and local codes for additional fuse requirements
串联
Tandem
并联
Parallel
串联后并联
Parallel after series
二极管
diode
过电流保护器
Overcurrent protector
连接器
Connector
