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±¾´ÎµÄÉè¼ÆÈÎÎñΪ220KV½µÑ¹±äµçÕ¾µÄµçÆøÒ»´Î²¿·ÖÉè¼Æ¡£ÏȶÔʵ¼ÊÒªÇó¶Ô±äµçÕ¾×÷×ÜÌå·ÖÎö£¬²¢ÔÚ´Ë»ù´¡ÉÏÉè¼ÆµçÆøÖ÷½ÓÏß·½Ê½£¬Ñ¡ÔñÖ÷±äѹÆ÷£¬¼ÆËã¶Ì·µçÁ÷£¬Ñ¡ÔñµçÆøÉ豸£¬×îºóÉè¼Æ½ÓµØÓë·ÀÀ×±£»¤µÄÅäÖᣠ¹Ø¼ü´Ê£º±äµçÕ¾£» Ö÷±äѹÆ÷£» ¶Ì·¼ÆË㣻 ·ÀÀ×±£»¤ ABSTRACT

With the rapid development of China's industry, the electric power demand is more and more big, the promotion of the national economy of electric power industry has played a huge role. The substation as the power transmission, substation, distribution is a crucial part of the three links, to the whole power grid and even influence the whole society is not big.

According to the design requirements, the design for the 220kV step-down substation electrical part design. First on the overall analysis of substation main electrical wiring design requirements, and on this basis, the selection of main transformer, calculation of short circuit current, selection of electrical equipment, the final design of grounding and lightning protection configuration.

Keywords: substation; transformer; short circuit calculation; lightning protection

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