Core Subject 2 3 4
- Identify properties, types, and applications of circuit breakers.
Circuit Breakers - General
- GEH-6273E MicroVersaTrip Users Guide 2 3
- NEMA AB 4 Guidelines for Inspection and Preventive Maintenance of Molded-Case Circuit Breakers Used in Commercial and Industrial Applications 2 3
- The Basics of Circuit Breakers - SIEMENS Handbook
- 4 Methods of Medium-Voltage Circuit Breaker Design
- SF6 Circuit Breakers
- Circuit Breaker Terms and Definitions
- Apply visual and mechanical inspections of circuit breakers.
Important Standards
- NFPA 70B: Chapter 15 Substations and Switchgear Assemblies 2 3 4
- NFPA 70B: Chapter 17 Insulated-Case/Molded-Case Circuit Breakers 2 3 4
Lubrication
General Maintenance
- Employ methods and procedures for electrical tests of circuit breakers.
Important Standards
- NFPA 70B: Chapter 11.10 Low-Voltage Circuit Breakers 2 3 4
- NFPA 70B: Chapter 11.16 Medium and High Voltage Circuit Breakers 2 3 4
Zone Interlocking
- Zone Selective Interlocking (ZSI) Basic Principles
- Reducing Fault Stress with Zone-Selective Interlocking Schneider Electric 4
- Zone Interlocking - EATON Application Note 3
Circuit Breaker Testing Guides
- Circuit Breaker Testing Guide - MEGGER Handbook
- 3 Basic Electrical Tests for Medium-Voltage Circuit Breakers
- 10 Critical Tests for New Power Circuit Breakers
- 5 Often Overlooked Tests for Power Circuit Breakers
- How to perform diagnostic testing of HV circuit breakers
- Recommended Circuit Breaker Tests
Vacuum Integrity
Power Factor
Timing Tests
- Evaluate test results of circuit breakers.
Important Standards
- NETA-ATS 2017: Section 7.6 Circuit Breakers 2 3 4
- NETA-MTS 2019: Section 7.6 Circuit Breakers 2 3 4
�Getting Started