AS 1013-1971

1 - AS 1013-1971 SHUNT CAPACITORS FOR CONNECTION TO POWER FREQUENCY SYSTEMS - METRIC UNITS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1. SCOPE AND SERVICE CONDITIONS
7 - 1.1 SCOPE.
7 - 1.2 NORMAL SERVICE CONDITIONS.
7 - 1.2.1 Temperature Limits.
7 - 1.2.2 Temperature Classification.
8 - 1.2.3 Standard Temperature Categories.
8 - 1.3 ABNORMAL SERVICE CONDITIONS.
9 - SECTION 2. DEFINITIONS
9 - 2.1 APPLICATION.
9 - 2.2 CAPACITOR.
9 - 2.3 CAPACITOR ELEMENT (or Element)
9 - 2.4 CAPACITOR UNIT (or Unit)
9 - 2.5 CAPACITOR BANK (or Bank)
9 - 2.6 CAPACITOR GROUP (or Group)
9 - 2.7 DISCHARGE DEVICE
9 - 2.8 RATED VOLTAGE
9 - 2.9 SYSTEM HIGHEST VOLTAGE
10 - 2.10 RATED POWER
10 - 2.11 RATED CURRENT
10 - 2.12 EXPOSED INSTALLATION
10 - 2.13 NON-EXPOSED INSTALLATION
10 - 2.14 INSULATION LEVEL
10 - 2.15 CAPACITOR LOSSES
10 - 2.16 TANGENT OF THE LOSS ANGLE
10 - 2.17 AMBIENT AIR TEMPERATURE
10 - 2.18 COOLING AIR TEMPERATURE
11 - SECTION 3. SAFETY REQUIREMENTS
11 - 3.1 DISCHARGE DEVICE.
11 - 3.2 FUSES.
11 - 3.3 REPEATED SWITCHING.
11 - 3.4 CONTAINER CONNECTION.
11 - 3.5 OTHER SAFETY REQUIREMENTS.
12 - SECTION 4. QUALITY REQUIREMENTS AND TESTS
12 - 4.1 QUALITY REQUIREMENTS FOR BUSHINGS AND INSULATORS.
12 - 4.2 REQUIREMENTS FOR ROUTINE, TYPE AND SAMPLE TESTS.
12 - 4.2.1 General.
12 - 4.2.2 Routine Tests.
13 - 4.2.3 Type Tests.
13 - 4.2.4 Sample Tests.
13 - 4.3 DETAILS OF ROUTINE TESTS.
13 - 4.3.1 Impregnant Leakage Test
14 - 4.3.2 Measurement of Capacitance and Losses
14 - 4.3.3 Determination of Reactive Power
15 - 4.3.4 A. C. or D. C. Voltage Test between Terminals
15 - 4.3.5 A. C. Voltage Test between Terminals and Container
15 - 4.3.6 Discharge Device Test
15 - 4.3.7 Determination of Reactive Power
16 - 4.3.8 Tests of Insulation in Capacitor Bank
16 - 4.4 DETAILS OF TYPE TESTS.
16 - 4.4.1 Measurement of Losses at Elevated Temperature
16 - 4.4.2 Thermal Stability Test
17 - 4.4.3 Impulse Voltage Test between Terminals and Container
17 - 4.4.4 A. C. Voltage Tests between Terminals and Container (Dry Test)
17 - 4.4.5 Short-circuit Discharge Test
19 - 4.5 DETAILS OF SAMPLE TEST.
20 - SECTION 5. INSULATION LEVELS
20 - 5.1 SELECTION OF INSULATION LEVELS.
20 - 5.2 INSULATION LEVELS FOR CAPACITORS DESIGNED TO WITHSTAND IMPULSE- VOLTAGE TESTS, INTENDED FOR EXPOSED INSTALLATION.
20 - 5.3 INSULATION LEVELS FOR CAPACITORS NOT DESIGNED TO WITHSTAND IMPULSE- VOLTAGE TESTS, INTENDED FOR NON- EXPOSED INSTALLATION
23 - SECTION 6. RATING PLATES
23 - 6.1 CAPACITOR UNIT RATING PLATE.
23 - 6.2 CAPACITOR BANK RATING PLATE.
24 - 6.3 SAFETY PLATES.
24 - 6.4 INSTRUCTIONS FOR MARKING.
24 - 6.4.1 Connection Symbol.
24 - 6.4.2 Marking of Insulation Level.
25 - SECTION 7. OVERLOADS
25 - 7.1 PERMISSIBLE OVERLOADS.
25 - 7.2 MAXIMUM PERMISSIBLE VOLTAGE.
25 - 7.3 MAXIMUM PERMISSIBLE CURRENT.
26 - APPENDIX A - GUIDE FOR APPLICATION AND OPERATION OF SHUNT POWER CAPACITORS
26 - A1 INTRODUCTION.
26 - A2 CHOICE OF THE RATED VOLTAGE.
26 - A2.1 General.
26 - A2.2 Determination of System Voltage at Capacitor Location.
27 - A2.3 Emergency Operation.
27 - A3 INSULATION LEVEL.
27 - A4 OPERATING TEMPERATURE.
27 - A4.1 Influence on Life of Capacitors.
27 - A4.2 Choice of Location and Effect on Rating.
28 - A4.3 Other Special Conditions.
28 - A5 OVERVOLTAGES.
28 - A5.1 Overvoltages Due to Switching.
28 - A5.2 Overvoltages Due to Lightning.
28 - A5.3 Overvoltages due to Motors.
28 - A5.4 Overvoltages in Capacitor Banks.
29 - A5.5 Overvoltages due to Harmonics.
29 - A6 OVERLOAD CURRENTS.
29 - A6.1 General.
29 - A6.2 Overload Currents Due to Harmonics.
30 - A6.3 Transient Overcurrent Due to Switching.
30 - A7 SWITCHING AND PROTECTIVE DEVICES AND CONNECTIONS.
30 - A7.1 Current Rating.
30 - A7.2 Electro-dynamic and Thermal Stresses.
30 - A7.3 Operation of Switching Devices.
31 - A7.4 Overcurrent Relays for Protection.
31 - A7.5 Causes of Overheating.
31 - A8 CAPACITORS CONNECTED TO SYSTEMS WITH AUDIO-FREQUENCY REMOTE CONTROL
32 - APPENDIX B - EFFECT OF HARMONICS ON CAPACITOR LOADING
32 - B1 GENERAL.
32 - B2 CALCULATION OF REACTIVE POWER
34 - APPENDIX C - APPLICATION OF FUSES FOR PROTECTION OF CAPACITORS
34 - C1 GENERAL.
34 - C2 EXTERNAL FUSING.
34 - C2.1 Capacitor Group Fusing
34 - C2.2 Capacitor Unit Fusing
35 - C2.3 Choice of External Fuses.
35 - C3 INTERNAL FUSING - CAPACITOR ELEMENT FUSING
35 - C4 CONTAINER RUPTURE.
42 - APPENDIX D - DETERMINATION OF REACTIVE POWER
43 - APPENDIX E - METHOD OF TEST FOR EFFICACY OF DISCHARGE DEVICE
44 - APPENDIX F - PARTICULARS TO BE GIVEN WITH ENQUIRY OR ORDER

Applies to capacitor units and assemblies with accessories to form complete capacitor banks, for connection to low, medium and high voltage power systems at frequencies to 100 Hz, for use primarily for power factor correction. Characteristics and test requirements are enumerated in detail. Appendices give guidance on application, operation and protection.

This standard applies to both capacitor units and assemblies of capacitor units with accessories to form complete capacitor banks, for connection to a low-voltage, medium-voltage or high-voltage power system having a frequency up to and including 100 Hz, and which are intended to be used particularly for power-factor correction and/or voltage regulation.NOTE: The following are excluded from this standard and may form the subject of separate standards:(a) metallized dielectric capacitors;(b) series capacitors;(c) capacitors intended for control, protection and measurement purposes (e.g. coupling capacitors and the like);(d) small a.c. capacitors as used for fluorescent and discharge lamps and for electric sign circuits;(e) capacitors for motor starting applications, and the like;(f) capacitors for radio-interference suppression.