RO
SR EN 60567:2006
Oil-filled electrical equipment - Sampling of gases and of oil for analysis of free and dissolved gases - Guidance
Deals with the techniques for sampling free gases from gas-collecting relays and for sampling oil from oil-filled equipment such as power and instrument transformers, reactors, bushings, oil-filled cables and oil-filled tank-type capacitors. Three methods of sampling free gases and three methods of sampling oil are described; the choice between the methods often depends on the apparatus available and on the quantity of oil needed for analysis. Before analysing the gases dissolved in oil, they must first be extracted from the oil. Three basic methods are described, one using extraction by vacuum (Toepler and partial degassing), another by displacement of the dissolved gases by bubbling the carrier gas through the oil sample (stripping), and the last one by partition of gases between the oil sample and a small volume of the carrier gas (head space). The gases are analysed quantitatively after extraction by gas chromatography; a method of analysis is described. Free gases from gas-collecting relays are analysed without preliminary treatment. The preferred method for assuring the
Status :
Withdrawn
Approval date : 2/22/2006
Publish date : 2/24/2006
Withdrawal date : 11/24/2014
Number of pages : 133
ICS : 17.220.99 Other standards related to electicity and magnetism,29.035.99 Other insulating materials,29.040.10 Insulating oils
Technical Committee : 5 - Insulation materials and electrical insulation systems
- Replaces SR EN 60567:1999
- Replaced by SR EN 60567:2012