永寧牽引變電所主接線設(shè)計畢業(yè)設(shè)計-展示頁
2025-07-08 03:35本頁面
【正文】 14 摘 要牽引變電所是電氣化鐵路中重要的組成部分。牽引變電所主接線形式的確定對于保證鐵路正常運行、供電系統(tǒng)的安全穩(wěn)定有十分重要的意義。設(shè)計內(nèi)容主要包括變壓器選擇、主接線形式確定、短路計算、設(shè)備選擇和校驗。首先計算出牽引變壓器的計算容量、校核容量以及安裝容量，根據(jù)上述結(jié)果完成了對牽引變壓器的選型，本設(shè)計選用三相YN,d11牽引變壓器，正常運行時一臺投入使用，另外一臺固定備用。再次，應(yīng)用標(biāo)幺值法做了短路計算，根據(jù)計算結(jié)果完成了對相應(yīng)的斷路器、隔離開關(guān)、互感器和避雷器的選擇和校驗。關(guān)鍵詞：電氣化鐵路；牽引變電所；牽引變壓器；電氣主接線 I AbstractTraction substation is an important part of the electrified railway, which converts 110kV or 220kV AC into to supply electric lootive. The main wiring form of the traction substation is very important for ensuring the normal operation of the railway and the safety and stability of the power supply system.According to the existing data on TaiyuanzhongweiYinchuan railway, the traction substation main wiring of Yongning traction substation is finished. The contents of the design includes the choice of the transformer, the main wiring form, the shortcircuit calculation, the equipment selection and paper uses 25kV AC system and supplies for double track ,the calculation capacity , check capacity and installation capacity of the traction transformer is paper uses threephase YN,d11 normal operation,one puts into use,the other fixes , the form of the main wiring is determined,220kV side is the double T junction, side is the single busbar disconnectors segment with bypass bus connection type,feeder uses the 50% of feeder breaker alternate , the normalized value method is used to calculate the short to the results, the selection and verification of the circuit breaker, isolating switch, current transformer ,voltage transformer and arrester are pleted. Finally,the drawing of the main wiring diagram is finished.Key Words: Electrified railway, Traction substation, Traction transformer, Main wir
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