JB/T 9647-1999
Gas relay (English Version)
- Standard No.
- JB/T 9647-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2014-10
- Replace By
- JB/T 9647-2014
- Latest
- JB/T 9647-2014
- Scope
- This standard specifies the product models and dimensions, technical requirements, test methods, inspection rules, markings, packaging, etc. of gas relays for oil-immersed transformers. This standard applies to all oil-immersed transformers and gas relays used for the protection of oil-immersed on-load tap-changers.
JB/T 9647-1999 history
- 2014 JB/T 9647-2014 Buchholz relay
- 1999 JB/T 9647-1999 Gas relay
