AS 2232.1-1979

This standard applies to direct-on-line (full voltage) starters for industrial use, intended to start and accelerate a motor to normal speed and to provide means for the protection of the motor and its associated circuits against operating overloads, and to intentionally cause the motor to stop.This standard also applies to reversing starters, and includes inching and plugging duties.It applies only to starters, the main contacts of which are intended to be connected to circuits of above 1000 V up to and including 10 000 V a.c. rated voltage for use in installations not exposed to atmospheric over-voltages. As such starters are normally for three-phase motors with three-pole switching, this specification is limited to these arrangements. Variations necessary for any other arrangement are subject to special agreement.Breaking of short-circuit currents is outside the scope of this standard, and the standard does not apply to starters using static main switching devices or to dependent manual starters (see Note to Clause 2.1.4).NOTES:1. Suitable short-circuit protection should be ensured by protective devices (e.g. fuses or circuit-breakers) which may form part of the installation or of the starter itself. These protective devices should comply with the appropriate Australian standards. Appendix B gives requirements for their coordination with the starter.2. The use of starters in installations exposed to atmospheric overvoltages is subject to special agreement. Where necessary, reference should be made to the appropriate Australian standard, e.g. AS 2086 and AS ...., Insulation-enclosed Switchgear and Controlgear for Rated Voltages above 1 kV and including 36 kV (in course of preparation).The clauses of this standard relating to overload protection may not be applicable in the case of controlgear relying for its operation on built-in over-temperature protective devices.NOTE: The expression 'built-in' means built into the motor.