Specification for electrically - driven point - operating machines for railways 鐵路用電動道岔轉(zhuǎn)轍機(jī)規(guī)范
On - load tap - changer of transformer can work under load , transfer quickly , change one class voltage about 3 - 6 ms each time ; switch can be operated by hand or electrically - driven and distant place operate while being electronic too , easy to realize automatic management ; transfer and keep relatively heavy range is generally more than 15 % ; switch and voltage transformer structure are more complicate than others , make man - hour and material increase , the cost is relatively high 變壓器的有載調(diào)壓能帶負(fù)載調(diào)壓,調(diào)壓速度快,每調(diào)換一級電壓約3 6s ;開關(guān)可手動、電動操作,也能遠(yuǎn)方電動操作,便于實(shí)現(xiàn)自動化管理;調(diào)壓范圍較大,一般為15以上;開關(guān)和變壓器結(jié)構(gòu)比無勵磁調(diào)壓的復(fù)雜,制造工時(shí)和材料增多,成本較高。