ABB ret650 - Page 34

Signal outputs.................................................................................617
Power outputs.................................................................................617
Data communication interfaces...................................................... 618
Enclosure class.............................................................................. 619
Ingress protection........................................................................... 619
Environmental conditions and tests................................................620
Section 20 IED and functionality tests............................................621
Electromagnetic compatibility tests................................................ 621
Insulation tests................................................................................623
Mechanical tests.............................................................................623
Product safety.................................................................................623
EMC compliance............................................................................ 624
Section 21 Time inverse characteristics.........................................625
Application...................................................................................... 625
Operation principle......................................................................... 628
Mode of operation......................................................................628
Inverse time characteristics............................................................ 631
Section 22 Glossary....................................................................... 655
Table of contents
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Technical manual