Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

AS 1023.2-1989

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Low voltage switchgear and controlgear - Protection of electric motors - Current sensing protection devices for a.c. motors
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Superseded date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

01-01-1989

Preview

Specifies requirements for five types of device or relay to protect a.c. electric motors from overtemperature damage caused by overload, phase failure or stalled drive, by sensing the magnitude, duration and, depending on the type, other properties of motor currents.

This Standard applies to current-sensing devices or relays as classified in Clause 1.5 according to their function(s) for the protection of a.c. electric motors.NOTE:1. When used in motor starters, these devices are also required to comply with the relevant requirements of the AS 1202 series of Standards.2. In this Standard the term motor protection relay has a different meaning to that in the previous edition, see Clause 1.4.2.This Standard covers requirements for protection of the motor against-overload; phase failure; and stalled drive.NOTE: A specific device complying with this Standard may not provide phase failure or stalled drive protection.In addition, such devices may provide the following features which are outside the scope of this Standard: (a) Remote temperature sensing input(s).(b) Protection of the motor against other conditions such as-earth fault; phase current imbalance; phase-sequence reversal; and short-circuit.NOTE: Such short-circuit protection is distinct from protection of circuit wiring afforded by circuit-breakers or fuses.This Standard does not apply to the following types of motor overload protection device: (i) Devices operated wholly by the temperature of the frame or windings of a motor.(ii) Devices operated partly by the temperature of the frame or windings of the motor, as covered by AS 1023.3.(iii) Thermally operated, self-resetting devices of the type used in refrigerating units.(iv) Devices built into motor-operated appliances.

Committee
EL-006
DocumentType
Standard
ISBN
0 7262 5252 2
Pages
40
ProductNote
To run concurrently with AS 3947.4.1-1995
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

AS 1735.2-1993 Lifts, escalators and moving walks Passenger and goods lifts - Electric
AS 1735.2-1997 Lifts, escalators and moving walks Passenger and goods lifts - Electric
AS 1930-1976 Circuit-breakers for distribution circuits (up to and including 1000 V a.c. and 1200 V d.c.)
AS 2381.6-1993 Electrical equipment for explosive atmospheres - Selection, installation and maintenance Increased safety e
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.)

View more information
$99.73
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more