kinds of traction 中文意思是什麼
kinds of traction
解釋
牽引種類-
After analyzing several kinds of protection for feeder line in subway dc traction power supply system, it is pointed out in the paper that the phenomena of refusing action and error action can not be avoided with existing protection which can not protect the whole feeder line
摘要分析了地鐵直流牽引供電系統中幾種常用的饋線保護類型，發現現有的保護方法很難避免跳閘保護拒動或誤動現象的發生，並且不能保護饋線的全長。 -
Two kinds of new on - line monitoring methods, which are based on measuring primary, secondary currents and voltages to calculate the short - circuit reactances of windings for detecting the deformation windings of power transformer, are proposed in the paper. the methods used for on - line measuring the short - circuit reactances of traction transformer in electric railways, are designed
本文提出了兩種在線監測變壓器繞組變形的方法，通過在線監測變壓器繞組原、次邊的電壓和電流量，實時計算變壓器繞組的短路電抗來判斷變壓器繞組變形情況，並對電氣化鐵路主要接線型式的牽引變壓器繞組變形的在線監測方案進行了設計。 -
The main achievements of the thesis are as follows : ( 1 ) kinds of techniques to detect magnetizing inrush of traction transformers are thoroughly investigated in this paper, and their limitation are indicated and corresponding improvement techniques are proposed. ( 2 ) in this paper, flux linkage equilibriun equations are used to build " ash - box " models of some traction transformers based on system identification, such as two - winding single - phase traction transformer, impedance - matching equilibriun traction transformer and scott traction transformer
論文的主要內容有： （ 1 ）詳盡分析了現有的針對牽引變壓器勵磁涌流演算法的保護演算法，提出了每種演算法的局限性及其改進方法； （ 2 ）提出適用於鐵道電氣化系統中各種牽引變壓器對應的三?二相轉換規則，利用該規則可將對應量的轉換置於保護軟體中，從而可大大減輕在牽引變壓器兩端外部復雜的接線。 -
Considering the random fluctuation traction load ( from 0 to max, variable at every minute ), the life limit of all kinds of machine switches and expensive cost and complex overhaul of svc, this paper aims to develop a set of svc suitable for the present condition of our country. in order to resolve the reactive power returning back problem and realize static adjustable compensation to improve negative sequence
本文針對電氣化負荷變化頻繁、 svc價格昂貴及檢修復雜、機械開關無法擔負頻繁操作任務的現實，提出通過改造svc結構，把tcr改為tsr ，把tsc實現粗調、 tcr實現細調改為由tsc調節欠補無功、 tsr調節過補無功的技術方案。 -
The paper makes a comprehensive comparison between two kinds of arrangement of motor cars and trailers in a six - car metro train, that is, 3 motor cars and 3 trailers vs. 4 motor cars and 2 trailers, from the respects of traction and brake performance, traveling speed and number of cars, capability of rescue and operation with malfunction, maintenance work and purchase of cars
摘要對6輛地鐵列車編組三動三拖及四動兩拖的配置進行綜合比較，包括牽引及制動性能、旅行速度及車輛配置數、故障運行及救援能力、列車維修及車輛采購等，以供車輛選型時參考。
分享友人