Motor starter configurations: Difference between revisions
From Electrical Installation Guide
m (1 revision: no page modification, previous revision = imported ch.N pages cleaned-up) |
CleanUp2016 (talk | contribs) (Cleanup_2016) |
||
| Line 1: | Line 1: | ||
{{Menu_Characteristics_of_particular_sources_and_loads}} | {{Menu_Characteristics_of_particular_sources_and_loads}} | ||
__TOC__ | __TOC__ | ||
Different configurations of switchgear and control-gear are commonly proposed. Some examples are shown on {{FigureRef|N66}}. | Different configurations of switchgear and control-gear are commonly proposed. Some examples are shown on {{FigureRef|N66}}. | ||
{{Gallery|N66|The various functions and their combinations forming a motor starter|| | |||
|DB422692_EN.svg|| | |||
|DB422693_EN.svg|| | |||
|DB422694_EN.svg|| | |||
}} | |||
The different applicable standards are listed on {{FigureRef|N67}}. | The different applicable standards are listed on {{FigureRef|N67}}. | ||
{| | {{TableStart|Tab1390|4col}} | ||
|- | |- | ||
! Standard | ! style="width:100px;" | Standard | ||
! Title | ! Title | ||
|- | |- | ||
| Line 30: | Line 32: | ||
| IEC 61800 | | IEC 61800 | ||
| Adjustable speed electrical power drive systems | | Adjustable speed electrical power drive systems | ||
| | |- | ||
{{TableEnd|Tab1390|N67|Applicable standards}} | |||
Different utilization categories have been defined for contactors in IEC 60947-4-1. The selection relative to asynchronous motor control is given in {{FigureRef|N68}}. | Different utilization categories have been defined for contactors in IEC 60947-4-1. The selection relative to asynchronous motor control is given in {{FigureRef|N68}}. | ||
{| | {{TableStart|Tab1391|4col}} | ||
|- | |- | ||
! Category | ! Category | ||
| Line 51: | Line 52: | ||
|- | |- | ||
| AC-4 | | AC-4 | ||
| Squirrel-cage motors: starting, plugging | | Squirrel-cage motors: starting, plugging{{TabRef|Tab1391|a}}, inching{{TabRef|Tab1391|b}} | ||
|} | |- | ||
{{TableEnd|Tab1391|N68|Different categories of AC contactors used for asynchronous motor control | |||
|a| By plugging is understood stopping or reversing the motor rapidly by reversing motor primary connections while the motor is running. | |||
|b| By inching (jogging) is understood energizing a motor once or repeatedly for short periods to obtain small movements of the driven mechanism }} | |||
[[zh:电动机启动配置]] | [[zh:电动机启动配置]] | ||
Revision as of 00:53, 11 December 2016
Different configurations of switchgear and control-gear are commonly proposed. Some examples are shown on Figure N66.
Fig. N66 – The various functions and their combinations forming a motor starter
The different applicable standards are listed on Figure N67.
| Standard | Title |
|---|---|
| IEC 60947-1 | Low-voltage switchgear and controlgear – General rules |
| IEC 60947-4-1 | Contactors and motor-starters –Electromechanical contactors and motor-starters |
| IEC 60947-4-2 | Contactors and motor-starters – AC semiconductor motor controllers and starters |
| IEC 60947-6-2 | Multiple function equipment – Control and protective switching devices (or equipment) (CPS) |
| IEC 61800 | Adjustable speed electrical power drive systems |
Fig. N67 – Applicable standards
Different utilization categories have been defined for contactors in IEC 60947-4-1. The selection relative to asynchronous motor control is given in Figure N68.
| Category | Typical applications |
|---|---|
| AC-1 | Non-inductive or slightly inductive loads, resistance furnaces |
| AC-2 | Slip-ring motors: starting, switching off |
| AC-3 | Squirrel-cage motors: starting, switching off motors during running |
| AC-4 | Squirrel-cage motors: starting, plugging[a], inching[b] |
[a] By plugging is understood stopping or reversing the motor rapidly by reversing motor primary connections while the motor is running.
[b] By inching (jogging) is understood energizing a motor once or repeatedly for short periods to obtain small movements of the driven mechanism
Fig. N68 – Different categories of AC contactors used for asynchronous motor control
