IEC 60034-19:2014 applies to d.c. machines rated 1 kW and above operating on rectifier-fed power supplies, d.c. buses or other d.c. sources and provides standardized methods intended to determine characteristic quantities for conventional and rectifier-fed d.c. machines. These methods supplement the requirements in IEC 60034-1 and IEC 60034-2-1. The main changes with regard to the previous edition are as follows: – description of the procedure for black band testing has been detailed and clarified; – procedures for measurement of the magnetization curves under no-load and load conditions have been added.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | Foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and subscripts 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.2 Symbols 3.3 Subscripts 4 Determination of current and voltage specific quantities (rectifier-fed) 4.1 General 4.2 Current ripple <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4.3 Voltage ripple 4.4 Measurement of average values 4.5 Measurement of root-mean-square values 4.6 Calculation of current and voltage ripple factors and form factor 5 Determination of the armature circuit inductance 5.1 Procedure performed before starting the tests 5.2 Measurement of armature circuit inductance of shunt and compound-wound machines <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.3 Measurement of armature circuit inductance of series-excited machine 5.4 Calculation of armature circuit inductance La on the basis of direct measurement 5.5 Saturated armature circuit inductance at a loaded condition Figures Figure 1 \u2013 Determination of saturated armature circuit inductance <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6 Determination of shunt-field inductance 6.1 General 6.2 Unsaturated shunt-field inductance 6.3 Saturated shunt-field inductance 6.4 Shunt-field inductance with consideration of eddy current effect Figure 2 \u2013 Test circuit for saturated shunt-field inductance measurement <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.5 Shunt-field inductance without consideration of eddy current effect Figure 3 \u2013 Determination of the field inductance <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7 Determination of black band zone 7.1 General 7.2 Set-up Figure 4 \u2013 Test circuit for black band testing <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7.3 Test procedure 7.3.1 Operating conditions Figure 5 \u2013 Additional generator used to boost or subtract the armature current <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7.3.2 Determination of the minimum current of the commutating winding 7.3.3 Determination of the maximum current of the commutating winding 7.4 Calculation of black band width (\u2206n) and black band shift (\u03b4n) Figure 6 \u2013 Black band zone for a specified constant speed of rotation <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8 Determination of the maximum permissible rate of change of armature current 8.1 General 8.2 Set-up Figure 7 \u2013 Test circuit for rate of change of armature current measurement <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 8.3 Test procedure 8.3.1 Operating conditions 8.3.2 Measuring the rise of armature current 8.4 Calculation of initial rate of change of armature current Figure 8 \u2013 Transient build-up of armature current <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 9 Additional losses and efficiency of rectifier-fed d.c. motors 9.1 General 9.2 Measurement procedure Figure 9 \u2013 Test circuit for measurement of ripple losses <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 9.3 Calculation of efficiency 10 Determination of speed regulation 10.1 General 10.2 Operating conditions 10.3 Test procedure 10.4 Determination of speed regulation 11 Determination of the shunt regulation curve 11.1 General <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 11.2 Operating conditions 11.3 Test procedure 11.4 Shunt regulation curve 12 Determination of the magnetisation curve 12.1 General 12.2 Operating conditions 12.3 Test procedure 12.3.1 General 12.3.2 Test at no-load <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 12.3.3 Test at rated load 12.4 Magnetisation curve <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rotating electrical machines – Specific test methods for d.c. machines on conventional and rectifier-fed supplies<\/b><\/p>\n |