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BS EN 61881-2:2012

$142.49

Railway applications. Rolling stock equipment. Capacitors for power electronics – Aluminium electrolytic capacitors with non solid electrolyte

Published By Publication Date Number of Pages
BSI 2012 30
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IEC 61881-2:2012 applies to d.c. aluminium electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. It specifies quality requirements and tests, safety requirements, and describes installation and operation information.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Service conditions
13 4.1 Normal service conditions
4.1.1 General
4.1.2 Altitude
4.1.3 Temperature
4.2 Unusual service conditions
14 5 Quality requirements and tests
5.1 Test requirements
5.1.1 General
5.1.2 Test conditions
5.1.3 Measurement conditions
5.1.4 Voltage treatment
5.1.5 Thermal treatment
5.2 Classification of tests
5.2.1 General
15 5.2.2 Type tests
5.2.3 Routine tests
Table 1 – Classification of tests
16 5.2.4 Acceptance tests
5.3 Capacitance and tangent of loss angle (tanδ)
5.3.1 Capacitance
5.3.2 Tangent of loss angle (tanδ)
5.4 Leakage current
5.4.1 Capacitor cell
5.4.2 Capacitor module or bank
5.5 Insulation test between terminals and case
5.5.1 Capacitor cell
17 5.5.2 Capacitor module or bank
5.6 Sealing test
5.7 Surge discharge test (under consideration)
5.7.1 General
5.7.2 Preconditioning
5.7.3 Initial measurement
5.7.4 Test methods
18 5.7.5 Post treatment
5.7.6 Final measurement
5.7.7 Acceptance criteria
5.8 Environmental testing
5.8.1 Change of temperature
19 5.8.2 Damp heat, steady state
Table 2 – Damp heat steady-state test
20 5.9 Mechanical testing
5.9.1 Mechanical tests of terminals
5.9.2 External inspection
5.9.3 Vibration and shocks
5.10 Endurance test
5.10.1 General
5.10.2 Preconditioning
5.10.3 Initial measurements
5.10.4 Test methods
Table 3 – Testing the robustness of terminals
21 5.10.5 Post treatment
5.10.6 Final measurement
5.10.7 Acceptance criteria
5.11 Pressure relief test
5.12 Passive flammability
6 Overloads
6.1 Maximum permissible voltage
22 6.2 Maximum permissible current
7 Safety requirements
7.1 Discharge device
7.2 Case connections (grounding)
7.3 Protection of the environment
7.4 Other safety requirements
23 8 Marking
8.1 Marking of the capacitor
8.1.1 Capacitor cell
8.1.2 Capacitor module or bank
8.2 Data sheet
24 9 Guidance for installation and operation
9.1 General
9.2 Choice of rated voltage
9.3 Operating temperature
9.3.1 Life time of capacitor
9.3.2 Installation
25 9.3.3 Unusual cooling conditions
9.4 Over voltages
9.5 Overload currents
9.6 Switching and protective devices
Figure 1 – Examples of preferred vent and anode position
26 9.7 Dimensioning of creepage distance and clearance
9.8 Connections
9.9 Parallel connections of capacitors
9.10 Series connections of capacitors
9.11 Magnetic losses and eddy currents
9.12 Guide for unprotected capacitors
27 Annex A (informative) Terms and definitions of capacitors
Figure A.1 – Example of capacitor application in capacitor equipment
28 Bibliography
BS EN 61881-2:2012
$142.49