AS 1966.2-1985

1 - AS 1966.2-1985 ELECTRICAL ARC WELDING POWER SOURCES - ROTARY TYPE
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 APPLICATION.
6 - 1.3 REFERENCED DOCUMENTS.
6 - 1.4 DEFINITIONS.
6 - 1.5 SAFETY REQUIREMENTS.
6 - 1.5.1 General.
6 - 1.5.2 Earthing facilities.
6 - 1.5.3 Double insulation.
6 - 1.6 SERVICE CONDITIONS.
6 - 1.7 RATING AND CLASSIFICATION.
6 - 1.7.1 Rating and classification of welding power sources.
7 - 1.7.2 Rating of series resistors.
7 - 1.7.3 Rated load voltage.
7 - 1.7.4 Rating of electric driving motors.
7 - 1.7.5 Rating of multi-operator welding power sources
7 - 1.7.6 Internal combustion engines for driving alternators or generators
10 - SECTION 2. PERFORMANCE REQUIREMENTS
10 - 2.1 OPEN-CIRCUIT VOLTAGE.
10 - 2.2 POWER FACTOR CORRECTION.
10 - 2.3 COMMUTATION.
10 - 2.4 OUTPUT CURRENT REGULATOR.
10 - 2.5 VOLTAGE REGULATION OF MULTI-OPERATOR WELDING POWER SOURCE
10 - 2.6 TEMPERATURE LIMITS.
10 - 2.6.1 General.
10 - 2.6.2 Windings.
11 - SECTION 3. DESIGN AND CONSTRUCTION
11 - 3.1 GENERAL.
11 - 3.2 OPERATOR CONTROLS.
11 - 3.3 TERMINALS.
11 - 3.4 IDENTIFICATION OF CONNECTIONS.
11 - 3.5 LOADING OF MULTI-OPERATOR WELDING POWER SOURCE
11 - 3.6 INDICATION AND ACCURACY OF LOAD CURRENT FOR MANUAL METAL-ARC WELDING POWER SOURCES
12 - SECTION 4. MARKING
12 - 4.1 GENERAL.
12 - 4.2 INFORMATION TO BE MARKED ON ALL ROTARY TYPE WELDING POWER SOURCES.
12 - 4.3 INFORMATION TO BE MARKED ON SEPARATE CURRENT CONTROL DEVICES.
12 - 4.4 POWER FACTOR CORRECTION MARKING.
12 - 4.5 VERIFICATION OF MARKINGS.
13 - SECTION 5. TESTS
13 - 5.1 GENERAL REQUIREMENTS FOR TESTS
13 - 5.2 INSULATION RESISTANCE TEST.
13 - 5.3 HIGH VOLTAGE TEST.
14 - 5.4 TEST OF EARTHING CONNECTION.
14 - 5.4.1 Test
14 - 5.4.2 Criteria.
14 - 5.5 TEST FOROPEN-CIRCUIT VOLTAGE.
14 - 5.6 TEMPERATURE-RISE TEST.
14 - 5.7 TEST FOR MINIMUM OUTPUT CURRENT.
14 - 5.8 TEST FOR RATED INPUT CURRENT (OF ELECTRIC DRIVING MOTORS)
14 - 5.9 TEST FOR VOLTAGE REGULATION (MULTI-OPERATOR ROTATING WELDING POWER SOURCES ONLY)
15 - 5.10 EARTH LEAKAGE TEST.
15 - 5.11 TEST FOR MAXIMUM OUTPUT CURRENT
15 - 5.12 OVERLOAD AND COMMUTATION TEST (WHERE APPLICABLE).
15 - 5.12.1 General.
15 - 5.12.2 Single-operator welding power sources.
15 - 5.12.3 Multi-operator welding power sources.
16 - APPENDIX A - METHOD FOR THE DETERMINATION OF TEMPERATURE RISE
16 - A1 SCOPE.
16 - A2 PRINCIPLE.
16 - A2.1 Continuous duty power source.
16 - A2.2 Other than continuous duty power sources.
16 - A3 DEFINITIONS.
16 - A3.1 Temperature rise
16 - A3.2 Ambient temperature
16 - A4 TEST CONDITIONS.
16 - A5 METHOD FOR THE DETERMINATION OF AMBIENT TEMPERATURE.
16 - A6 METHOD OF MEASUREMENT OF TEMPERATURE RISE.
16 - A6.1 General.
16 - A6.2 Resistance method.
17 - A6.3 Thermometer method.
17 - A7 PROCEDURE.
17 - A7.1 Continuous duty welding power source.
17 - A8 REPORT.
18 - APPENDIX B - CALCULATION OF EQUIVALENT LOADINGS FOR MULTI-OPERATOR WELDING POWER SOURCES
18 - B1 KNOWN OPERATION SEQUENCE.
18 - B2 EXAMPLE.
18 - B2.1 Problem.
18 - B2.2 Solution.
18 - B3 UNKNOWN OPERATION SEQUENCE.
19 - APPENDIX C - RATED 100-PERCENT DUTY CYCLE OUTPUT CURRENT
20 - APPENDIX D - DETERMINATION OF POWER FACTOR
20 - D1 SCOPE.
20 - D2 APPLICATION.
20 - D3 PRINCIPLE.
20 - D4 APPARATUS.
20 - D5 PROCEDURE.
20 - D6 REPORT.
21 - APPENDIX E - SCHEDULE OF ROUTINE AND TYPE TESTS
21 - E1 INTRODUCTION.
21 - E2 GENERAL.
21 - E2.1 Type tests.
21 - E2.2 Routine tests.
21 - E3 CLASSIFICATION OF TESTS.

Part 2 specifies the requirements for the design, performance and rating of arc welding power sources of the rotary type. It covers rotary type power sources having alternating current and/or direct current generator output. Both single-operator and multi-operator machines are covered and calculations of equivalent loadings for multi-operator machines are included. Various routine and type tests are contained in the appendices.

This standard specifies requirements for the design, performance and rating of rotating a.c. and/or d.c. electric arc welding power sources (hereinafter referred to as 'welding power source') consisting of alternators or generators with suitable control for regulating welding current, and driven by electric motors, internal combustion engines or mechanical drives from separate prime movers.This standard does not include requirements for connected equipment such as welding leads, electrode holders and automatic wire feeders, etc.

Obsolescent 23 January 2004