Gives ratings and performance for all rotating machines except those covered by other specific standards. Machines within the scope of this standard may also be subjected to superseding, modifying or additional requirements in other publications.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Section 1. General 1.1 Scope 1.2 Normative references <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Section 2. Definitions For the purpose of this International Standard, the definitions in IEC 50(411) and the following … 2.1 rated value 2.2 rating 2.3 rated output 2.4 load 2.5 no-load (operation) 2.6 full load 2.7 full load value 2.8 rest and de-energized 2.9 duty 2.10 duty type <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 2.11 cyclic duration factor 2.12 locked-rotor torque 2.13 locked rotor current 2.14 pull-up torque (of an a.c. motor) 2.15 breakdown torque (of an a.c. motor) 2.16 pull-out torque (of a synchronous motor) 2.17 cooling 2.18 coolant 2.19 primary coolant 2.20 secondary coolant <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 2.21 direct cooled (inner cooled) winding 2.22 indirect cooled winding 2.23 supplementary insulation 2.24 moment of inertia 2.25 thermal equilibrium 2.26 thermal equivalent time constant 2.27 encapsulated winding 2.28 rated form factor of direct current supplied to a d.c. motor armature from a static power converter 2.29 current ripple factor <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Section 3. Duty 3.1 Declaration of duty 3.2 Duty types 3.2.1 Duty type S1 \u2014 Continuous running duty 3.2.2 Duty type S2 \u2014 Short-time duty 3.2.3 Duty type S3 \u2014 Intermittent periodic duty 3.2.4 Duty type S4 \u2014 Intermittent periodic duty with starting <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3.2.5 Duty type S5 \u2014 Intermittent periodic duty with electric braking 3.2.6 Duty type S6 \u2014 Continuous-operation periodic duty 3.2.7 Duty type S7 \u2014 Continuous-operation periodic duty with electric braking 3.2.8 Duty type S8 \u2014 Continuous-operation periodic duty with related load\/speed changes 3.2.9 Duty type S9 \u2014 Duty with non-periodic load and speed variations 3.2.10 Duty type S10 \u2014 Duty with discrete constant loads <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Section 4. Rating 4.1 Assignment of rating 4.2 Classes of rating 4.2.1 Rating for continuous running duty 4.2.2 Rating for short-time duty 4.2.3 Rating for periodic duty 4.2.4 Rating for non-periodic duty 4.2.5 Rating for duty with discrete constant loads <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 4.2.6 Rating for equivalent loading 4.3 Selection of a class of rating 4.4 Allocation of outputs to class of rating 4.5 Rated output 4.5.1 DC generators 4.5.2 AC generators 4.5.3 Motors 4.5.4 Synchronous condensers <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.6 Rated voltage 4.6.1 generators 4.6.2 generators 4.7 Coordination of voltages and outputs 4.8 Machines with more than one rating <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Section 5. Site operating conditions 5.1 General 5.2 Altitude 5.3 Maximum ambient air temperature 5.4 Minimum ambient air temperature 5.5 Water coolant temperature 5.6 Storage and transport 5.7 Purity of hydrogen coolant <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Section 6. Electrical operating conditions 6.1 Electrical supply 6.2 Form and symmetry of voltages and currents 6.2.1 AC motors 6.2.2 AC generators <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 6.2.3 Synchronous machines 6.2.4 DC motors supplied from static power converters <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 6.3 Voltage and frequency variations during operation <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Table 2 6.4 Three-phase a.c. machines operating on unearthed systems 6.5 Voltage (peak and gradient) withstand levels <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Section 7. Thermal performance and tests 7.1 Thermal classification 7.2 Reference coolant 7.3 Conditions for thermal tests 7.3.1 Electrical supply 7.3.2 Temperature of machine before test 7.3.3 Temperature of coolant <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 7.3.4 Measurement of coolant temperature during test 7.4 Temperature rise of a part of a machine 7.5 Methods of measurement of temperature 7.5.1 Resistance method 7.5.2 Embedded temperature detector (ETD) method 7.5.3 Thermometer method <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 7.6 Determination of winding temperature 7.6.1 Choice of method 7.6.2 Determination by resistance method <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 7.6.3 Determination by ETD method 7.6.4 Determination by the thermometer method 7.7 Duration of thermal tests 7.7.1 Rating for continuous running duty 7.7.2 Rating for short-time duty 7.7.3 Rating for periodic duty 7.7.4 Ratings for non-periodic duty and for duty with discrete constant loads <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 7.8 Determination of the thermal equivalent time constant for machines of duty type S9 7.9 Measurement of bearing temperature 7.10 Limits of temperature and of temperature rise 7.10.1 Indirect cooled windings <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Table 9 Assumed maximum ambient temperature 7.10.2 Direct cooled windings 7.10.3 Adjustments to take account of hydrogen purity on test 7.10.4 Permanently short-circuited windings, magnetic cores and all structural components (other than be… 7.10.5 Commutators and sliprings, open or enclosed and their brushes and brushgear <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Table 11 Limits of temperature of directly cooled machines and their coolants <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Table 12 Adjustments to limits of temperature at the operating site for windings directly cooled by air or… Table 13 Adjusted limits of temperature at the test site \/ <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Section 8 Other performance and tests 8.1 Withstand voltage test 8.1.2 For testing the insulation of bars and coils of high voltage machines, see EN\ufffd50209 and EN\ufffd60034\ufffd… <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Table 14 Withstand voltage tests$ <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | #Withstand voltage tests 8.2 Occasional excess current 8.2.1 General 8.2.2 Generators 8.2.3 AC motors (except commutator motors) <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 8.2.4 Commutator machines 8.3 Momentary excess torque for motors 8.3.1 Polyphase induction motors and d.c. motors 8.3.2 Induction motors for specific applications 8.3.3 Polyphase synchronous motors 8.3.4 Other motors <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 8.4 Pull-up torque 8.5 Safe operating speed of cage induction motors 8.6 Overspeed$ <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 8.7 Short-circuit current for synchronous machines 8.8 Short-circuit withstand test for synchronous machines <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 8.9 Commutation test for commutator machines 8.10 Telephone harmonic factor (THF) for synchronous machines 8.10.1 General 8.10.2 Limits 8.10.3 Tests <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Section 9. Rating plates 9.1 General 9.2 Marking <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Section 10. Miscellaneous requirements 10.1 Earthing of machines <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Table 18 Cross-sectional areas of earth conductors 10.2 Shaft-end key(s) <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Section 11. Tolerances 11 Tolerances Table 19 Schedule of tolerances on values of quantities <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Section 12. Electromagnetic compatibility (EMC) 12.1 General 12.2 Immunity 12.2.1 Machines not incorporating electronic circuits 12.2.2 Machines incorporating electronic circuits 12.3 Emission 12.3.1 Machines without brushes 12.3.2 Machines with brushes 12.4 Immunity tests 12.5 Emission tests 12.5.1 Machines without brushes 12.5.2 Machines with brushes <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Section 13. Safety 13.1 Safety Figure 1 Continuous running duty \u2014 Duty type S1 <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Figure 2 Short-time duty \u2014 Duty type S2 <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Figure 3 Intermittent periodic duty \u2014 Duty type S3 <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | Figure 4 Intermittent periodic duty with starting \u2014 Duty type S4 <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | Figure 5 Intermittent periodic duty with electric braking \u2014 Duty type S5 <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Figure 6 Continuous operation periodic duty \u2014 Duty type S6 <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | Figure 7 Continuous operation periodic duty with electric braking \u2014 Duty type S7 <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | Figure 8 Continuous operation periodic duty with related load\/speed changes \u2014 Duty type S8 <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | Figure 9 Duty with non-periodic load and speed variations \u2014 Duty type S9 <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Figure 10 Duty with discrete constant loads \u2014 Duty type S10 <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | Figure 11 Voltage and frequency limits for generators Figure 12 Voltage and frequency limits for motors <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | Figure 13 Weighting curve for computing THF <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | Annex A (informative) Guidance for the application of duty type S10 and for establishing the value of rel… A.1 The load of the machine at any moment is equivalent to duty type S1 corresponding to A.2 Depending on the value and duration of the different loads within one cycle, the relative life ex… A.3 The quantity TL is an integral part of the unambiguous identification of the class of rating. A.4 The value of the quantity TL can be determined only when, in addition to information concerning t… A.5 TL can be stated sensibly as a relative value only. This value can be used by approximation to as… A.6 The manufacturer of the machine is responsible for the correct compilation of the various paramet… <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Annex B (informative) Cross-references between edition 9 (+ amd 1) and edition 10 edition 9 (+ amd 1) and edition 10 <\/td>\n<\/tr>\n | ||||||
| 75<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European … <\/td>\n<\/tr>\n | ||||||
| 77<\/td>\n | Annex ZB (informative) Electromagnetic compatibility (EMC) limits <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rotating electrical machines – Rating and performance<\/b><\/p>\n |