IEC 62257是一项技术规范，本部分规定了适用于将太阳能作为能源的不同离网应用的逆变器的选择和尺寸确定标准。 除离网系统外，本文件也适用于逆变器，其中公用电网连接可用作备用电池充电，但本文件不适用于逆变器同步并将能量注入公用电网的应用，尽管该功能可能是逆变器功能的一部分。 包括单相和多相应用。交叉引用:IEC TS 62257-7-1:2010IEC 62109-1IEC 62109（所有部分）IEC 61683IEC 61800（所有部分）IEC 61800-3IEC 62548IEC 61800-5-1IEC 60529IEC TS 62257-7-4IEC TS 62257-2IEC TS 61836购买本文件时可提供的所有当前修改件均包括在内。

This part of IEC 62257, which is a technical specification, specifies the criteria for selecting and sizing inverters suitable for different off-grid applications integrating solar as an energy source. As well as off-grid system, this document can also apply to inverters where a utility grid connection is available as a backup for charging batteries, but it is not intended to cover applications in which inverters synchronize and inject energy back into a utility grid, even though this capability may incidentally be a part of the functionality of the inverters. Single and multi-phase applications are included.Cross References:IEC TS 62257-7-1:2010IEC 62109-1IEC 62109 (all parts)IEC 61683IEC 61800 (all parts)IEC 61800-3IEC 62548IEC 61800-5-1IEC 60529IEC TS 62257-7-4IEC TS 62257-2IEC TS 61836All current amendments available at time of purchase are included with the purchase of this document.