BS EN IEC 60034-23:2019
$198.66
Rotating electrical machines – Repair, overhaul and reclamation
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 58 |
This part of IEC 60034 covers the procedures necessary to ensure the satisfactory repair, overhaul, and reclamation of all types and sizes of rotating electrical machines covered by the IEC 60034 series. The standard creates a generic industry procedure covering common aspects of a complete repair. The scope of work depends on the machine type, rating, condition, and the importance of plant reliability and safety. It includes
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determining cause of failure, where necessary;
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determining the extent of repair, as applicable;
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defining revised performance, operating and ambient conditions, if required;
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reviewing the original design, and upgrading the specification of the design, if required;
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proving the quality and performance of the repaired machine, maintaining or improving the rated energy efficiency;
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ensuring environmental considerations are taken into account.
This document does not supersede the requirements prescribed in IEC 60079‑19 or elsewhere concerning the repair and overhaul for machines used in explosive atmospheres.
Machines for special applications such as hermetic, submersible, nuclear, hydrogen cooled machines, military, aviation and traction motors might have additional requirements, which are the subject of agreement between the service facility and user.
This document is not intended to take the place of the original machine manufacturer’s instructions and recommendations.
Re-designs and performance changes requiring machine designer input are beyond the scope of this document.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 7 | English CONTENTS |
| 11 | FOREWORD |
| 13 | 1 Scope 2 Normative references |
| 14 | 3 Terms and definitions |
| 15 | 4 General principles 4.1 Use of referenced documents 4.2 Hazardous areas |
| 16 | 4.3 Special applications 4.4 Efficiency 4.5 System efficiencies 4.6 Environment and End of life recycling |
| 17 | 4.7 Circular economy 5 General requirements for repair 5.1 General |
| 18 | 5.2 Service facility 5.3 Scope of work Figure 1 – Electrical machine components |
| 19 | 5.4 Standards 5.5 Quality program |
| 20 | 5.6 User supplied information 5.6.1 User transfer document 5.6.2 Operating environment 5.6.3 Converter/inverter operation 5.6.4 Health and safety 5.7 Documentation 5.7.1 Records |
| 21 | 5.7.2 Labels and rating plates 6 Assembled machine: inspection, tests and evaluation 6.1 Visual inspection |
| 22 | 6.2 Tests before dismantling 6.2.1 Safety 6.2.2 Application 6.3 Stator winding or rotor winding tests 6.3.1 Winding resistance test 6.3.2 Phase balance test 6.3.3 Insulation resistance test |
| 23 | 6.3.4 Polarization index test Tables Table 1 – Recommended minimum insulation resistance valuesat a base temperature of 40 °C reference IEC 60034-27-4 |
| 24 | 6.3.5 No load test 6.4 Shaft and bearings 6.4.2 Bearing checks 6.4.3 Bearing insulation resistance Table 2 – Guide to application of DC voltages forthe insulation resistance and PI test |
| 25 | 6.5 Rotor cage integrity 6.5.1 General 6.5.2 Current signature analysis (harmonic analysis) 6.5.3 Single-phase test method 6.5.4 Pole drop test – Salient pole rotor (motor or generator) 7 Dismantled machine: inspection, tests, and evaluation 7.1 General 7.2 Cleaning |
| 26 | 7.3 Visual inspection 7.4 Air gap 7.5 Ventilation 7.6 Stator |
| 27 | 7.7 Rotor 7.7.1 General 7.7.2 Rotor removal: vertical machines 7.7.3 Cage rotor |
| 28 | 7.7.4 Cylindrical wound rotor windings 7.7.5 Permanent magnet (PM) machines: rotor removal 7.7.6 Salient pole rotor 7.7.7 Cylindrical solid rotors |
| 29 | 7.8 Slip rings 7.9 Brushes and brush-holders 7.10 Rolling element bearings |
| 30 | 7.11 Sleeve bearings 7.12 Seals and labyrinth seals 8 Repair work 8.1 Winding inspection |
| 31 | 8.2 Core inspection 8.3 Rewinding 8.3.1 General |
| 32 | 8.3.2 Random wound coils 8.3.3 Form-wound coils |
| 33 | 8.3.4 Rewound stator tests 8.3.5 Winding resistance test 8.3.6 Surge comparison (or phase balance) test 8.3.7 Withstand voltage test Table 3 – Withstand voltage tests as per IEC 60034-1 |
| 35 | 8.3.8 Thermal protection 8.3.9 Conductors and connections 8.3.10 Insulation system 8.3.11 Impregnation |
| 36 | 8.3.12 Wound rotor banding 8.4 Components 8.4.1 General 8.4.2 Housing and end brackets |
| 37 | 8.4.3 Fans and fan cowls 8.5 Rotor 8.5.1 General 8.5.2 Air gap 8.5.3 Cage rotor |
| 38 | 8.5.4 Salient pole rotor 8.5.5 Slip-rings 8.5.6 Capacitors 8.5.7 Switches and starting components 8.5.8 Excitation components 8.6 Shafts |
| 39 | 8.7 Bearings 8.8 Lubrication 8.8.1 Grease |
| 40 | 8.8.2 Oil 8.9 Space heaters 8.10 Temperature sensors 8.11 Ingress and corrosion protection 8.12 Terminal boxes and connections 9 Final tests 9.1 Test equipment |
| 41 | 9.2 Insulation resistance 9.3 Winding resistance 9.4 No load test Table 4 – Minimum schedule of routine tests as per IEC 60034-1 |
| 42 | 9.5 Magnetic centre marking (by agreement) 9.6 Locked rotor test (where applicable) 9.7 Full load run for motors 9.8 Zero power factor full current heat run (by agreement) 9.9 Electromagnetic compatibility (by agreement) 9.10 Auxiliaries 9.11 Salient pole DC or AC drop test 10 Additional requirements for DC machines 10.1 General 10.2 Assembled DC machine: inspection, tests and evaluation 10.2.1 General |
| 43 | 10.2.2 No load test, or light load run 10.2.3 Bar to bar test 10.2.4 Surge test 10.3 Dismantled condition: inspection, tests and evaluation 10.3.1 Field winding 10.3.2 Inter-pole and compensation winding 10.3.3 Armature winding |
| 44 | 10.3.4 Commutator 10.4 Repair work 10.4.1 Commutator dimensions 10.4.2 Brush-holders |
| 45 | 10.4.3 Brushes 10.4.4 Brush neutral Table 5 – Brush to brush holder clearance (Extract from Table 1 of IEC 60136:1986) |
| 46 | 10.4.5 Field, inter-pole, and compensation windings 10.4.6 Air gap 10.4.7 Rotor run-outs 10.4.8 Rotor balance |
| 47 | 10.5 DC machines final tests 10.5.1 Brush holders 10.5.2 No load test or light load test 11 Additional requirements for high voltage AC machines (by agreement) 11.1 Assembled HV machine, inspection and tests 11.1.1 General 11.1.2 The tan-delta (tip-up test in North America) 11.1.3 Partial discharge test 11.2 Dismantled HV machine , inspection and tests 11.2.1 Dielectric dissipation factor test 11.2.2 Dielectric dissipation factor tests of stator winding coils and bars 11.2.3 Stator slot wedge deterioration 11.2.4 Stator winding slot and overhangs discharge suppression |
| 48 | 11.3 High voltage machines: final tests 11.3.1 High voltage withstand test: for HV machines 11.3.2 Withstand voltage tests, for overhauls and partial rewinds (by agreement) 11.3.3 Over-speed test (by agreement) 11.3.4 Short circuit run (by agreement) 11.3.5 Remnant voltage (by agreement) 11.3.6 Cooling circuit leakage tests (by agreement) |
| 49 | 12 Additional tests for high voltage generators 12.1 Stator winding crevice corrosion 12.2 Solid cylindrical rotor 12.3 Cooling circuits (hydrogen/water) 13 Customer reports and handover 13.1 Exterior finish 13.2 Transport and packaging 13.3 Report to the user |
| 50 | Annex A (informative)Flow chart for repair, overhaul and reclamation |
| 51 | Annex B (informative)Standard extracts and tolerance tables Table B.1 – Shaft extensions and couplings reference IEC 60072-1 Table B.2 – Dimensions for the width of keyway to take keys to a tap fit(IEC 60072-1:1991, C.1.5) |
| 52 | Table B.3 – Table of tolerances for shaft extension run-out |
| 53 | Table B.4 – Table for mounting spigot diameter tolerances(IEC 60072-1:1991, C.1.7) Table B.5 – Table for concentricity of spigot diameter and perpendicularityof mounting face to shaft extension (IEC 60072-1:1991, C.7.1) |
| 54 | Bibliography |
