GB/T 7449-1987 English Version, GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors (English Version)

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GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors (English Version)
Standard No.:	GB/T 7449-1987	Status:	superseded remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	14500 words	Price(USD):	430.0 remind me the price change Email:
Implemented on:	1987-10-1	Delivery:	via email in 1~5 business day

Standard No.:	GB/T 7449-1987
English Name:	Guide to the lightning impulse and switching impulse testing of power transformers and reactors
Chinese Name:	电力变压器和电抗器的雷电冲击和操作冲击试验导则
Chinese Classification:	K04 Basic standards and general methods
Professional Classification:	GB National Standard
Issued by:	National Bureau of Standards
Issued on:	1987-03-16
Implemented on:	1987-10-1
Status:	superseded
Superseded by:	GB/T 1094.4-2005 Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors
Superseded on:	2006-4-1
Language:	English
File Format:	PDF
Word Count:	14500 words
Price(USD):	430.0
Delivery:	via email in 1~5 business day

GB/T 7449-1987 is referred in:

* GB 1094.3-2003 Power transformers？Part 3:Insulation levels,dielectric tests and external clearances in air
* GB/T 13499-2002 Power transformers--Application guide

Standard

GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors (English Version)
Standard No.	GB/T 7449-1987
Status	superseded
Language	English
File Format	PDF
Word Count	14500 words
Price(USD)	430.0
Implemented on	1987-10-1
Delivery	via email in 1~5 business day

Detail of GB/T 7449-1987

Standard No.

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Introduction of GB/T 7449-1987

本导则的目的是对电力变压器的雷电冲击和操作冲击试验的现行方法提供一个准则并作一些说明，以作为GB1094.3-1985的补充。本导则的内容通常也适用于电抗器，至于电磁式电压互感器也可以参照执行。本导则包括试验电路、接线、波形及试验时接地、故障检测方法、试验程序、测量技术以及试验结果分析等方面。本导则所述的一切试验技术，尽可能采用GB 311.2~311.6-83中所规定的内容。

Contents of GB/T 7449-1987

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