1 Scope
This standard specifies the basic requirements in the frequency response analysis on deformation of transformer winding.
This standard is applicable to power transformers of 6kV or higher voltage class, and other transformers for special purpose.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent modification (including corrected content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document referred to applies.
Contents
1 Scope
2 Normative References
3 Terms and Definitions
4 Testing Theory
5 Requirements on Testing Instrument
6 Test Method
7 Analytical Judgment on Winding Deformation
Annex A (Normative) Auxiliary judgment on deformation of transformer winding through the correlation factor R
Annex B (Informative) Typical amplitude frequency response characteristics curve of deformation of transformer winding
1 Scope
This standard specifies the basic requirements in the frequency response analysis on deformation of transformer winding.
This standard is applicable to power transformers of 6kV or higher voltage class, and other transformers for special purpose.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent modification (including corrected content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document referred to applies.
Contents of DL/T 911-2004
Contents
1 Scope
2 Normative References
3 Terms and Definitions
4 Testing Theory
5 Requirements on Testing Instrument
6 Test Method
7 Analytical Judgment on Winding Deformation
Annex A (Normative) Auxiliary judgment on deformation of transformer winding through the correlation factor R
Annex B (Informative) Typical amplitude frequency response characteristics curve of deformation of transformer winding
