SD 277-1988
Technical specifications for static power direction relay (English Version)
- Standard No.
- SD 277-1988
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Hydroelectric Power
- Status
- 2018-06
- Replace By
- DL/T 1772-2017
- Latest
- DL/T 1772-2017
SD 277-1988 history
- 2017 DL/T 1772-2017 Technical Specifications of Power Directional Components
- 1970 SD 277-1988 Technical specifications for static power direction relay
SD 277-1988 Technical specifications for static power direction relay was changed to DL/T 1772-2017 Technical Specifications of Power Directional Components.
