| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 3.2 Terms and definitions for adjustable speed control and rolling operation <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 3.3 Terms and definitions for adjustable speed drive system <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 3.4 Terms and definitions for monitoring and protection sequence 3.5 Terms and definitions for motor installation and site trial operation <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 3.6 Terms and definitions for test <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4 Terminal voltage determination <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figures Figure 1 \u2013 Example of induction motor terminal voltage versus speed Figure 2 \u2013 Example of synchronous motor terminal voltage versus speed <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5 Duty type and temperature class 5.1 General 5.2 Selection of rolling operation pattern <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.3 Evaluation of winding temperature deviation during one rolling cycle 5.4 Duty type S1 or S9 selection Tables Table 1 \u2013 Thermal life shortening due to the super-temperature in one rolling cycle <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.5 Class B rise or Class F rise selection 5.6 Overload current duration time limit based on winding temperature deviation in one rolling cycle for RMS current of 100 % Figure 3 \u2013 Selection of motor temperature rise based on the temperaturedeviation in one rolling cycle and shock load conditions <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 6 Continuous overload capability 6.1 General Figure 4 \u2013 Example of overload current duration time limit based on winding temperature deviation between maximum and mean,in one rolling cycle RMS current of 100 % <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 6.2 Relative thermal life index of TL value estimation by simplified method <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6.3 Relative thermal life estimation by precise method Figure 5 \u2013 Example of discrete constant loads with 115 % continuous overload <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 6.4 Relative thermal life index of TL value determination by precise method 7 Mechanical requirements 7.1 General 7.2 Mechanical strength for shaft and other transmission parts considering torsional vibration 7.3 Vibration transmitted through the motor base 7.4 Tangential forces applied to rotor and stator 7.5 Thrust load 7.5.1 General 7.5.2 Frequently applied thrust load <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 7.5.3 Occasionally applied maximum thrust load 7.5.4 Emergency maximum thrust load 7.6 Radial load for bearings 7.7 Overspeed 7.8 Stator coil end fixation 7.9 Stator shift construction for maintenance inspection 7.10 Mounting code application 8 Withstand voltage capability 8.1 Rotor bars or damper bars and short-circuit rings <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 8.2 General 8.3 Withstand voltage test 8.4 Withstand voltage capability 8.4.1 General 8.4.2 Ground insulation <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Figure 6 \u2013 2-level inverter configuration, waveform and switching surge voltage Figure 7 \u2013 3-level inverter configuration, waveform and switching surge voltage <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 8.4.3 Turn-to-turn insulation 9 Factory tests and recommended site operation tests 9.1 General 9.1.1 General scope for the tests 9.1.2 Requirements of the site operation test where vector control is applied <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 9.2 Factory test 9.3 Preparation before trial operation at site 9.3.1 General <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 9.3.2 Calibration of feedback signals for the converter 9.3.3 Insulation resistance tests for motor 9.3.4 Insulation resistance tests for bearings 9.3.5 Performance test for bearing lubrication oil supply unit 9.3.6 Confirmation of lubrication oil surface level for bearings 9.3.7 Performance test for cooling systems 9.3.8 Confirmation of alarm issue levels for motor protection <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 9.3.9 Synchronous motor pole position confirmation test 9.4 Site uncoupled trial operation 9.4.1 General 9.4.2 Rotational speed build-up test 9.4.3 Bearing temperature rise test 9.5 Site no-load characteristic test 9.5.1 Induction motor no-load characteristics test <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 9.5.2 Synchronous motor no-load characteristics test 9.5.3 No-load characteristics test record 9.6 Site acceleration and deceleration test <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 10 Grounding 10.1 General 10.2 Protection against bearing currents 10.3 Protective earthing (PE) 10.4 Functional earthing (FE) <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 11 Rating plate Figure 8 \u2013 Example of protective earthing and functional earthing <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Annex A (normative)Short-time overload capability A.1 General A.2 Frequently applied Art-1 short-time overload capability specification <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Figure A.1 \u2013 Art-1 short-time overload capability of Type-A motors <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Figure A.2 \u2013 Art-1 short-time overload capability of Type-B motors Table A.1 \u2013 Art-1 short-time overload capability of Type-A motors <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | A.3 Frequently applied Art-2 short-time overload capability specification Table A.2 \u2013 Art-1 short-time overload capability of Type-B motors <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Figure A.3 \u2013 Art-2 short-time overload capability of Type-A motors Table A.3 \u2013 Art-2 short-time overload capability of Type-A motors <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Figure A.4 \u2013 Art-2 short-time overload capability of Type-B motors Table A.4 \u2013 Art-2 short-time overload capability of Type-B motors <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | Annex B (normative)Rolling operation pattern designation B.1 General B.2 Rolling operation pattern for hot reversing rolling <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | B.3 Rolling operation pattern for hot continuous rolling of sheet strip Figure B.1 \u2013 Typical rolling operation pattern for hot reversing rolling <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | B.4 Rolling operation pattern for continuous caster directly connected hot continuous rolling mills Figure B.2 \u2013 Typical rolling operation for hot continuous rolling of sheet strip <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | B.5 Rolling operation pattern for hot continuous rolling for wire and rod mills Figure B.3 \u2013 Typical rolling operation pattern for continuous casterconnected hot continuous rolling for sheet strip <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | B.6 Rolling operation pattern for cold reversing rolling mills Figure B.4 \u2013 Typical rolling operation pattern for hot continuous rolling for wire and rod mills <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | B.7 Rolling operation pattern for cold continuous rolling Figure B.5 \u2013 Typical rolling operation pattern for cold reversing rolling mills <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | B.8 Operation pattern for coilers and reels Figure B.6 \u2013 Typical rolling operation pattern for cold continuous rolling <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure B.7 \u2013 Typical rolling operation pattern for coilers and reels <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Annex C (informative)Determination of winding temperature deviation in one rolling cycle C.1 General C.2 Simplified method for estimation of the winding temperature deviation between maximum and mean values in one rolling cycle Figure C.1 \u2013 Winding temperature rise as a step response for the first order delay system with the winding thermal equivalent time constant of T <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Table C.1 \u2013 Calculation example for repetitive 225 % overload current with RMS = 1,0 <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | C.3 Precise method for estimation of the winding temperature deviation between maximum and mean in one rolling cycle Figure C.2 \u2013 Numerical calculation result for the condition in Table C.1 Figure C.3 \u2013 Equivalent rectangular current waveform introduction <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Figure C.4 \u2013 Torque, speed, and current deviation in one rollingcycle for hot strip mill finishing motor <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Figure C.5 \u2013 An example of winding temperature deviation estimationin one rolling cycle by the precise method <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Table C.2 \u2013 An example of winding temperature deviation estimationin one rolling cycle by the precise method <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Annex D (informative)Evaluation of reduced insulation life <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | Figure D.1 \u2013 Example of stator coil insulation surface crackcaused by repetitive mechanical stress <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | Annex E (informative)Control system configuration for the assumed adjustablespeed rolling mill induction motors E.1 Induction motor model and controller configuration <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Figure E.1 \u2013 Example configuration of induction motor (IM) control system <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | E.2 Significance of acceleration and deceleration tests <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | Annex F (informative)Control system configuration for the assumed adjustablespeed rolling mill synchronous motors F.1 Control device configuration and synchronous machine model <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Figure F.1 \u2013 Principle of armature reaction compensation <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | Figure F.2 \u2013 Example configuration of synchronous motor (SM) control system <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | F.2 Significance of acceleration and deceleration tests Figure F.3 \u2013 Armature current and field current waveform example for the adjustable speed rolling mill synchronous motor for reversing rotational direction mill <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | F.3 Magnetic pole position confirmation test <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Annex G (informative)Mounting code application for the rolling mill motor special cases G.1 General G.2 IM code application for the twin-drive rolling mill configuration G.2.1 General G.2.2 IM code application for common base configuration <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | G.3 IM code application for sub-base insertion under the motor base for lifting-up motor shaft centre Figure G.1 \u2013 IM code application for bottom forward twin driveconfiguration with common motor bases <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | G.4 Coupling supply for cylindrical shaft extension Figure G.2 \u2013 IM code application for sub-base insertion underthe motor base for increasing motor shaft centre <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rotating electrical machines – AC adjustable speed rolling mill motors<\/b><\/p>\n |