RO
SR EN 50216-7:2004
Power transformer and reactor fittings -- Part 7: Electric pumps for transformer oil
EN 50216-7 covers requirements for electric pumps which generate the circulation of insulating oil in transformers and reactors conforming to the EN 60076 series and their associated cooling systems. The pumps covered in this standard are rotodynamic pumps driven by a squirrel cage induction motor which is immersed in the insulating oil. Pump sets conforming to this standard may be of in-line or end suction design. This standard includes requirements for the electrical and hydraulic performance, mechanical design, routine testing and type testing. Additionally, performance and dimensions of preferred sizes of pump sets are specified (see normative annexes A and B). The insulating oils considered comply with subclause 2.5 of IEC 60296-1. If other insulating liquids are to be used, the performance and design of the pump shall be agreed between purchaser and manufacturer.
Status :
Withdrawn
Approval date : 6/24/2004
Publish date : 6/25/2004
Withdrawal date : 2/22/2024
Number of pages : 24
ICS : 29.180 Transformers. Reactors
Technical Committee : 3 - Power transformers
- Normative reference SR EN 809:2003
- Normative reference SR EN 60034-1+A1+A2:2000
- Normative reference SR CEI 60279:2003
- Normative reference SR ISO 7005-2:2001
- Normative reference SR ISO 281:1994
- Normative reference SR HD 53.8 S5:2003
- Replaced by SR EN IEC 60076-22-5:2021