站用电压变压器 (SSVT

[中文适用范围]： 本文件描述了系统电压为46 kV或更高且电源绕组额定电压最大为1000 V的单相站用电压变压器的电气和机械要求。 本文件是建立设备性能和有限电气和机械互换性要求的基础。它也是正确选择此类设备的基础。 站用电压变压器(SSVT)是一种单相变压器，用于有效接地系统的线对地连接。它可以用作单独单元为单相负载供电，也可以在三相组中为三相负载供电。典型应用是为变电站提供照明、泵和电机负载等电力。根据用户要求，SSVT可以配备测量绕组。 [外文原描述]： IEC/IEEE 63253-5713-8:2024 describes electrical and mechanical requirements of single-phase station service voltage transformers with system voltages of 46 kV or higher and with the maximum rated voltage of the power winding of 1 000 V. This document is a basis for the establishment of performance and limited electrical and mechanical interchangeability requirements of the equipment are described. It is also a basis for assistance in the proper selection of such equipment. A station service voltage transformer (SSVT) is a single-phase transformer to be connected line-to-earth on an effectively earthed system. It can be used either as an individual unit for supplying single-phase loads, or in a three-phase bank to support three-phase loads. A typical application is to supply substation power such as lighting, pump and motor loads. The SSVT can be provided with a measuring winding when requested by the user.