Power utilization design optimizing method for substation

Abstract

A power utilization design optimizing method for a substation aims to modify wiring of substation transformers, power supply manners of substation power utilization load, device type selection, and the like. Wiring options of substation transformers, power supply manners of substation power utilization load, substation transformer selection and low-voltage apparatus selection are modified. Substation electric system design is quite important in electric design of the substation, substation electric system design must execute technological and economical policies of China and actively and carefully uses new technology and equipment which pass operation tests and technical evaluation so as to allow the design to accord to the principles of safety, reliability, advancing technology, economy, practicality, and consistency with national circumstances.

Description

technical field [0001] The invention relates to a substation, especially the optimization of the power consumption design of a 220KV substation. Background technique [0002] In the electrical design of the substation, the design of the station power system is a very important part. Station power design must implement the country's technical and economic policies, actively and prudently adopt new technologies and equipment that have passed the test of operation and technical appraisal, so that the design conforms to the principles of safety, reliability, advanced technology, economical applicability, and national conditions. [0003] The station transformers of 220 kV substations in the power system basically adopt Y, yn12 wiring. However, in the current "Technical Regulations on Power Design of Thermal Power Plants", it is stipulated that the low-voltage factory transformer should be connected with D, yn11. The industry standard JB 2426-92 "Technical Parameters and Requir...

AI Technical Summary

Problems solved by technology

[0006] (2) When the two substation transformers of 220 kV substation do not meet the conditions for parallel operation, the parallel operation of the station transformers should be strictly restricted, and the ring network power supply mode of the ring-breaking knife switch may appear to be mis-closed, resulting in two substations Parallel operation with transformers

However, with the progress of the times and the continuous innovation of new equipment and technologies, in the design of the original station power system, such as the wiring of the station transformer, the power supply method of the station load, and the selection of equipment, etc. Improvements