Standard No.:	GB/T 7677-1987
English Name:	Semiconductor direct d. c. convertors
Chinese Name:	半导体直接直流变流器
Chinese Classification:	K46    Power semiconductor device and parts
Professional Classification:	GB    National Standard
Issued on:	1987-04-15
Implemented on:	1999-5-1
Status:	superseded
Superseded by:	GB/T 3859.4-2004 Semiconductor converter - Self-commutated semiconductor converters including direct d.c.converters
Superseded on:	2004-12-2
Target Language:	English
File Format:	PDF
Word Count:	8500 words
Translation Price(USD):	530.0
Delivery:	via email in 1~3 business day

本标准适用于各类半导体直接直流变流器（直流斩波器），即不带交流环节的直流一直流变流器。本标准不适用于某些特殊用途的直接直流变流器（例如牵引用变流器），这类变流器可另订标准或制订附加技术条件。与其他一般变流器相同的问题，可遵循GB 3859《半导体电力变流器》的有关规定。