BS EN 60252-1:2011+A1:2013
$167.15
AC motor capacitors – General. Performance, testing and rating. Safety requirements. Guidance for installation and operation
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 38 |
This part of IEC 60252 applies to motor capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having a frequency up to and including 100 Hz, and to capacitors to be connected to three-phase asynchronous motors so that these motors may be supplied from a single-phase system.
This standard covers impregnated or unimpregnated capacitors having a dielectric of paper, plastic film, or a combination of both, either metallized or with metal-foil electrodes, with rated voltages up to and including 660 V.
Motor start capacitors are covered by IEC 60252-2.
NOTE The following are excluded from this standard:
shunt capacitors of the self-healing type for a.c. power systems of up to and including 1 000 V nominal voltage (see IEC 60831-1);
shunt capacitors of non-self-healing type for a.c. power systems of up to and including 1 000 V nominal voltage (see IEC 60931-1);
shunt capacitors for a.c. power systems having a nominal voltage above 1 000 V (see IEC 60871-1);
capacitors for induction heat-generating plants, operating at frequencies between 40 Hz and 24 000 Hz (see IEC 60110-1);
series capacitors (see IEC 60143);
coupling capacitors and capacitor dividers (see IEC 60358);
capacitors to be used in power electronic circuits (see IEC 61071);
small a.c. capacitors to be used for fluorescent and discharge lamps (see IEC 61048);
capacitors for suppression of radio interference (IEC publication under consideration);
capacitors intended to be used in various types of electrical equipment and thus considered as components;
capacitors intended for use with d.c. voltage superimposed on a.c. voltage.
The object of this standard is
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to formulate uniform rules regarding performance, testing and rating;
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to formulate specific safety rules;
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to provide a guidance for installation and operation.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | English CONTENTS |
| 9 | 1 Scope and object 2 Normative references |
| 10 | 3 Terms and definitions |
| 13 | 4 Service conditions 4.1 Normal service conditions 4.2 Preferred tolerances on capacitance 5 Quality requirements and tests 5.1 Test requirements |
| 14 | 5.2 Nature of tests 5.3 Type tests |
| 16 | Tables Table 1 – Type test schedule |
| 17 | 5.4 Routine tests 5.5 Tangent of loss angle 5.6 Visual examination 5.7 Voltage test between terminals Table 2a – Test voltages Table 2b – Test voltages |
| 18 | 5.8 Voltage test between terminals and case 5.9 Capacitance measurement 5.10 Check of dimensions 5.11 Mechanical tests |
| 19 | Table 3 – Torque |
| 20 | 5.12 Sealing test |
| 21 | 5.13 Endurance test |
| 22 | 5.14 Damp-heat test 5.15 Self-healing test Table 4 – Endurance test conditions |
| 23 | 5.16 Destruction test |
| 24 | Figures Figure 1 – Test apparatus for d.c. conditioning Figure 2 – Test apparatus for a.c. destruction test |
| 25 | Figure 3 – Arrangement to produce the variable inductor L in Figure 2 |
| 28 | 5.17 Resistance to heat, fire and tracking |
| 29 | 6 Permissible overloads 6.1 Maximum permissible voltage 6.2 Maximum permissible current 6.3 Maximum permissible reactive output 7 Safety requirements 7.1 Creepage distances and clearances |
| 30 | 7.2 Terminals and connecting cables 7.3 Earth connections Table 5 – Minimum creepage distances and clearances |
| 31 | 7.4 Discharge devices 8 Marking 9 Guidance for installation and operation 9.1 General |
| 32 | 9.2 Choice of rated voltage 9.3 Checking capacitor temperature 9.4 Checking transients |
| 33 | 9.5 Leakage current |
| 34 | Annex A (normative) Test voltage |
| 35 | Bibliography |
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BS EN 60252-1:2011+A1:2013
AC motor capacitors – General. Performance, testing and rating. Safety requirements. Guidance for installation and…
