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Dandong Border Economic Development Zone, the second 66KV substation design

Author: WangJun
Tutor: SunDeHui；LiYongJian
School: North China University of
Course: Control Engineering
Keywords: High-voltage substation High Voltage Apparatus Short-circuit calculation Relay Protection
CLC: TM63
Type: Master's thesis
Year: 2009
Downloads: 369
Quote: 0
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Abstract


The design is based on the power load data of the Economic Development Zone, Dandong City and Made the second 66kV substation ground design. Design elements includes Main wiring design , load calculation and choice of power transformers , high voltage electrical short-circuit calculations and the choice of the mine and the substation, such as microprocessor-based relay protection.Firstly , I did the design of the load transformer substation and reactive power compensation system, of which the load on the substation state and natural conditions to the system load calculation and analysis, The total capacity of capacitors to determine the compensation capacitor is the prerequisite for the calculation. Secondly, the design takes into account the expansion of space and determines the number, type and capacity of the main transformer. the choice of main Electrical Connection, I determined the connection mode by calculating and analyzing. Short-circuit calculation is important to the electrical design . Because its main electrical wiring, electrical equipment, relay protection, the choice of grounding have played a vital role in the design. Electrical equipment select the best option from the generator , circuit breakers , isolating switches , transformers and other aspects . Relay Protection is Divided into generator protection relay, circuit protection, power capacitor protect ion, transformer protection. Selecting the best protection way by comparing calculation, at the same time using a set of microprocessor-based relay protection device. Lightning protection determines the height of a lightning rod and its scope of protection by analysis and calculation. At last, the design determines the general layout plane of the substation and electrical distribution device.

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Substation
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