This One-day course is designed to help engineers understand the construction and maintenance (planning, testing and diagnostics) requirements for low voltage circuit breakers. Engineers directly involved in maintaining substations and low voltage switchgears or those requiring an understanding of the various tests and or diagnostics and analyzing test results will gain a better understanding of best maintenance practices as required by industry accepted standards.
Training program is based on: (1) Canadian Standards Association: CSA Z463- Standard for Maintenance of Electrical Systems; (2) Canadian Standards Association: CSA Z462- Standard for Electrical Safety; (3) National Electrical Testing Association (NETA): ANSI/NETA 2019 Standard for Maintenance Testing Specifications and (4) Professional Electrical Apparatus Recyclers League: Reconditioning Standards for Electrical Equipment.
Each student receives three comprehensive binders of reference material including maintenance frequencies, PEARL test standards and test forms.
After the training, the successful candidate will be able to:
- Perform tests on various circuit breakers and interpret results
- Understand the operation of electrically operated circuit breaker controls
- Be able to understand the operation of breaker mechanisms and failure modes
- Perform maintenance on low breakers and schedule
Who should attend:
This training is recommended for: Substation engineers, electrical test technicians and commissioning engineer, industrial electricians, field engineers, managers and substation supervisors.
You will be able to:
After the training, you will be able to understand the construction and maintenance requirements for low voltage circuit breakers, learn various tests and interpret test results as well as operation of breaker mechanisms and failure modes.
Please note that his training can be modified to suit your specific needs. We will be happy to conduct a needs analysis with you to determine your specific requirements. It can be conducted either on-site or off-site.
I. Safety and Maintenance Planning
Objective – Review the basic concepts of electrical safety and maintenance as per CSA-Z462 and CSA-Z463.
- Shock and arc flash safety.
- Run to failure maintenance.
- Preventive maintenance.
- Predictive maintenance.
- Apparatus failure modes and frequencies.
Objective – Review NETA tests on various circuit breakers and interpret results. Describe the operation of electrically operated circuit breaker controls. Describe the operation of breaker mechanisms and failure modes. Explain maintenance on low breakers and schedule.
- Review NETA visual and mechanical inspection
- Review NETA tests and interpret results:
- Typical Control Circuits,
- Insulation Resistance,
- Dielectric Withstand,
- Contact Resistance,
- Protective Relay Function,
- Primary Injection,
- Secondary Injection
Selected Training Course: Operation, Testing and Maintenance Of Low Voltage Circuit Breakers
Duration: One day (8AM to 4PM)
After you submit the training request, you will be contacted by training management via email for scheduling details.
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