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AS
AS 1023.3-1973

AS 1023.3-1973

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Low voltage switchgear and controlgear - Thermal protection of electric motors - Inherent overheat protectors

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

30-06-2017

Language(s)

English

Published date

01-01-1973

Publisher

Standards Australia

Preview

1 - AS 1023.3-1973 THERMAL PROTECTION OF ELECTRIC MOTORS - INHERENT OVERHEAT PROTECTORS - METRIC UNITS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 SAFETY REQUIREMENTS.
6 - 1.3 DEFlNlTIONS.
6 - 1.3.1 Inherent Overheat Protector
6 - 1.3.2 Overheating
6 - 1.3.3 First Cycle Trip Time
7 - 1.4 CLASSIFlCATlON.
7 - SECTION 2. CHARACTERISTICS
7 - 2.1 CHARACTERISTICS OF PROTECTORS.
8 - SECTION 3. MARKING
8 - 3.1 MOTOR NAMEPLATE.
8 - 3.2 PROTECTOR MARKING.
8 - SECTlON 4. STANDARD CONDITIONS FOR OPERATION
8 - 4.1 NOMINAL OPERATING TEMPERATURE.
8 - 4.2 NOMINAL RESETTlNG TEMPERATURE.
8 - 4.3 FIRST-CYCLE TRIP TIME.
9 - SECTION 5. STANDARD CONDITIONS FOR CONSTRUCTION
9 - 5.1 GENERAL.
9 - 5.1.1 Construction.
9 - 5.1.2 Tripping.
9 - 5.1.3 Calibration.
9 - 5.1.4 Resetting.
9 - 5.1.5 Corrosion Resistance.
9 - 5.1.6 Ability to Withstand Motor Manufacturing Processes.
9 - 5.1.7 External Control Circuit.
9 - 5.2 SPACINGS.
9 - 5.2.1 Connections in Motor Circuit.
10 - 5.2.2 Connections in External Control Circuit.
10 - 5.2.3 Separate Motor Protector Control Circuit and Motor.
10 - 5.2.4 Separate Motor Protector Control Circuits.
11 - SECTION 6. TESTING
11 - 6.1 TESTS.
11 - 6.1.1 General.
11 - 6.1.2 Type Tests.
11 - 6.1.3 Routine Tests.
11 - 6.2 RATED CONDITIONS.
11 - 6.2.1 Test Voltage.
11 - 6.2.2 Ambient Temperatures.
11 - 6.3 TYPE TESTS.
11 - 6.3.1 General.
11 - 6.3.2 Tests on Protectors.
12 - 6.3.3 Tests on Combination of Protector and Motor.
16 - 6.4 ROUTINE TESTS.
16 - 6.4.1 General.
16 - 6.4.2 High Voltage Test.
17 - APPENDIX A - USER DATA REQUIRED FOR APPLICATION OF INHERENT OVERHEAT PROTECTORS ON SINGLE- PHASE A. C. MOTORS
17 - A1 MOTOR DATA.
17 - A2 PROTECTOR LOCATION.
17 - A3 TEST DATA.
17 - A3. 1 Temperature.
17 - A3. 2 Locked Rotor Test.
18 - A3. 3 Running Overload Tests.
18 - A4 TYPlCAL SET OF DATA.

Applies to automatically or manually reset devices for use with a.c. motors having a rated output of 11 kW or less, and suitable for connection in an external circuit not exceeding 600 V for motors having a rated voltage not exceeding 3300 V, or in the motor circuit for motors having a rated voltage not exceeding 600 V. Tests for electrical properties, mechanical endurance, temperature rise and fire hazard are prescribed.

Committee
EL-006
DocumentType
Standard
ISBN
0 7262 4713 8
Pages
13
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

This specification applies to inherent overheat protectors, built into a.c. motors, together with their control units, forming part of a system of thermal protection of motors. They may be:(a) Connected in an external circuit of rated voltage not exceeding 600 V, of motors having a rated voltage not exceeding 3300 V and a rated output not exceeding 11 kW.(b) Connected in the motor circuit, the motor associated with the device having a rated voltage not exceeding 600 V and a rated output not exceeding 11 kW. The protectors may be automatically reset or manually reset.The protectors are responsive to motor heat alone or to a combination of motor heat plus the motor current passing through the device. This specification does not apply to inherent overheat protectors associated with sealed (hermetic) type compressor motors.NOTE: Appendix A sets out user data required for the application of inherent overheat protectors on single phase a.c. motors.

Reconfirmed 1984

AS 1735.2-1993 Lifts, escalators and moving walks Passenger and goods lifts - Electric
AS/NZS 1735.18:2002 Lifts, escalators, and moving walks Passenger lifts for private residence - Automatically controlled
AS 1735.2-1997 Lifts, escalators and moving walks Passenger and goods lifts - Electric
AS 2381.6-1993 Electrical equipment for explosive atmospheres - Selection, installation and maintenance Increased safety e
AS 1735.2-2001 Lifts, escalators and moving walks Passenger and goods lifts - Electric
AS 1735.15-2002 Lifts, escalators, and moving walks Low-rise passenger lifts - Non-automatically controlled
AS 1735.16-1993 Lifts, escalators and moving walks Lifts for persons with limited mobility - Restricted use - Automatically controlled
AS 2595.1-1992 Electrical equipment for coal mines - Electrical requirements for underground mining machines and accessories - Equipment for use in hazardous areas
AS 1029.2-1982 Low voltage contactors - Semiconductor (solid state) (up to and including 1000 V a.c. and 1500 V d.c.)

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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