Advanced Training for Switchgear (SF6, Medium Voltage and Vacuum Circuit Breaker (VCB))

Introduction

This training course will include the various tests for circuit breakers. The arc quenching principle determines the type and operation of a circuit breaker. The common medium voltage circuit breakers are usually gas insulated which is sulfur hexafluoride or SF6 and the vacuum interrupter type. The tests for SF6 gas include the dew point test and the purity test. Being gaseous leakage gases are imminent, and gas leakage detectors or sniffers are used to locate the leakage gas. Since sulfur hexafluoride or SF6 is declared as a greenhouse gas and with a very high global warming potential, alternative gases and gas mixtures to SF6 gas is an ongoing development.

The vacuum circuit breaker technology is making inroads towards a maintenance free circuit breaker which is very efficient and reliable. Outdoor high voltage circuit breakers like the live tank and dead tank are now replaced by the vacuum interrupter technology. As for the indoor gas insulated switchgears in incorporate the clean air technology. For a safe, accurate and secured operation of the circuit breakers under fault conditions, instrument transformers and digital numerical relays are included in the circuitry.

This GLOMACS Advanced Training for Switchgear training course will highlight:

• Arc quenching techniques in an SF6 circuit breaker
• The dew point test and the purity test using gas analyzers
• Arc extinguishing techniques in a vacuum circuit breaker
• Medium voltage vacuum circuit breakers with clean air
• Routine tests for circuit breakers

Objectives

At the end of this training course, you will learn to:

• Understand the operation of the SF6 circuit breaker
• Analyze the dew point and purity tests
• Learn the medium voltage vacuum circuit breaker technology
• Vacuum technology incorporating clean air
• SF6 alternative gases

Training Methodology

This training will ensure that participants will receive thorough training on the subjects covered by the training course outline with the instructor utilizing a variety of proven adult learning teaching and facilitation techniques. Each participant will receive a copy of the comprehensive training notes. The presenter will outline and discuss the topics using computer displays, videos and power point presentation.

Organisational Impact

On successful completion, the organizational impact would be: 

• Develop a structured outlook and understanding of arc extinguishing technologies
• Systematic operational of the self-blast and puffer type SF6 interrupters
• New generation vacuum interrupter technology
• Understanding the alternatives to SF6 gases
• Familiar with routine tests for circuit breakers

Personal Impact

Upon successful completion of this training course delegate will be able to:

• Understand the operational principles of the SF6 and vacuum circuit breakers
• Carry out the dew point and purity tests of as SF6 circuit breaker
• Appreciate the methods of testing circuit breakers
• Comprehend the significance the clean air vacuum technology
• Ability to perform the relevant routine tests for circuit breakers