35kv主变压器保护继电保护.doc

35kv主变压器保护继电保护.doc摘要
继电保护是电力系统设计有关事故时减小停电范围、,直接影响电力系统的安全运行,故选择保护方式时,,以保证电力系统的安全运行.
本文主要通过分析原始资料中主要设备的参数,首先,需要对电力系统继电保护原理进行全面系统的复习、查阅相关资料,加深理解;其次,结合相关参数和各种继电保护原理,确定适用于变压器的保护方案,最后,分别对变压器的进行各种保护整定和配置计算,、变压器纵联差动保护、低电压起动的过电流保护、过负荷保护、温度保护.
关键词继电保护,变压器保护,灵敏度校验,短路电流计算,整定计算
Abstract
The Relay protection is electrical system design relevant accident reduce outage scope, limit the damage of equipment accidents such a field. Power system protection design and configuration whether reasonable, directly affecting the safe operation of the power system, so choose protection way, meet the basic requirements of the relay protection. Choose the right protection mode and setting calculation, to ensure the safe operation of the power system. This paper mainly through the analysis of the original material of main equipment of parameters, first of all, need for transformer protection principle prehensive system review, refer to the relevant material, deepen understanding; Secondly, in conjunction with the relevant parameters and all kinds of relay protection principle, determine suitable for transformer protection scheme, then respectively, the transformer protection setting and configuration of calculated according to the system, and gives some secondary design drawings once its configuration diagram and general principle diagram. This design mainly adopts a transformer protection of gas protection, longitudinal league differential protection, over current protection, overload protection, temperature protection.
Key Words relay protection,transformer protection,sensitivity check,short-circuit current calculation,setting calculation
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