Standard No.:	DL/T 5420-2009
English Name:	Technological Guide for Stator Assembly in Site of Hydro-generators
Chinese Name:	水轮发电机定子现场装配工艺导则
Professional Classification:	DL    Professional Standard - Electricity
Source Content Issued by:	National Energy Administration
Issued on:	2009-07-22
Implemented on:	2009-12-1
Status:	valid
Superseding:	SD 287-1988 Guidelines on the field assembly technology of hydraulic turbine generator stator
Target Language:	English
File Format:	PDF
Word Count:	19000 words
Translation Price(USD):	470.0
Delivery:	via email in 1 business day

1 Scope 1.0.1 This standard specifies the technology methods, technical requirements, operating (construction) procedures and inspection criteria for stator assembly in site of hydro-generators with the unit capacity of 15MW or above, is applicable to the stator frame assembling and welding, iron core integral-stacking and all winding inserting with regards to stator assembly in power station of hydro-generators. This standard is not applicable to the site assembly of split stator or stator assembly carried out in the manufacturer of generator sets, with stators transported integrally to the site. 1.0.2 Hydro-generator stator in this standard refers to the common all air-cooling hydro-generator stator, internal cooling hydro-generator stator, flow-bulb hydro-generator stator and reversible generator-motor stator at the pumped storage power station. 1.0.3 Technology requirements for the stator assembly in site of hydro-generator with unit capacity less than 15MW may refer to relevant requirements in this standard. 2 Normative References The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, parties coming to an agreement according to this standard are encouraged to research whether the latest editions of the documents below apply. For undated references, the latest edition of the normative document is applicable to this standard. GB/T 8564 "Specification Installation of Hydraulic Turbine Generator Units" GB/T 20835 "Guides for Magnetization Test of Generator Stator Core" JB/T 8660 "Code for Packaging, Transport and Storage of Hydropower Units"

Contents Foreword I 1 Scope 2 Normative References 3 General 4 Construction Site 5 Assembly and Welding of Stator Frame 6 Installation of Positioning Reinforcement 7 Core Stacking 8 Magnetization Test of the Core 9 Winding Insertion and Busbar Installation 10 Cleaning, Inspection and Painting Appendix A (Informative) Apparatus and Materials for the Assembly of the Stator Core Appendix B (Informative) Apparatus and Materials for the Insertion of Stator Windings Appendix C (Informative) Site Assembly Information of the Stators in Some Power Stations at Home and Abroad Appendix D (Informative) Formulae and Mixing of all Kinds of Epoxy Adhesive, Cementing Agent and Filling Glue Appendix E (Informative) Magnetization Test Calculation and Wiring Diagram of Core