Commissioning: Substation, High-Voltage, Oil/Vacuum/Gas Circuit Breakers

This fabrication and erection technical specification outlines the essential work practices essential for the thorough commissioning and maintenance of substation high-voltage oil, vacuum, and gas circuit breakers. It is important to note that this article is not intended to serve as a standalone work scope but rather provides guidance for the proper execution of these tasks.

Inspections and Testing

• This technical specification encompasses a comprehensive range of visual and mechanical inspections.
• It also incorporates electrical and functional testing procedures for substation high-voltage oil, vacuum, and gas circuit breakers.

Supplementary Documentation and Safe Practices

• This specification should not be viewed in isolation.
• It must be used in conjunction with supplementary articles at last of page.
• These additional documents contain explicit information necessary for commissioning, in alignment with requisite safety protocols.

By providing clear delineation of tasks and relevant documentation, this specification ensures the meticulous execution of commissioning procedures while upholding safety standards throughout the process.

Electrical Commissioning task types

Personnel Responsibilities for Commissioning Tasks

This section outlines the personnel responsibilities associated with specific commissioning tasks listed on the Electrical Commissioning Start-up Checklist. All tasks must be diligently completed. In instances where a Task Type A or B remains unfinished within its designated commissioning timeframe, that specific A or B task will be integrated into the Task Type C commissioning responsibilities.

“A” – Contractor, Authorized Supplier, or Electrical Technician Personnel:

• Tasks falling under this category are to be executed by the contractor, authorized supplier, or Air Products electrical technician personnel.
• The responsible party must furnish comprehensive test reports for these tasks, which shall be readily available for reference.

4.1.2 “B” – Pre-Energization Tasks with Electrical Technician Personnel Oversight:

• Pre-energization tasks designated as “B” can be conducted or overseen by Air Products electrical technician personnel.
• In certain cases, approved suppliers may undertake these tasks without the physical presence of Air Products electrical technical personnel.
• Approval for suppliers to perform such tasks must be granted by the relevant electrical engineering operation support group.
• Test reports for these tasks must be prepared and accessible.

4.1.3 “C” – Tasks Conducted by Electrical Technician Personnel during Commissioning:

• Tasks categorized as “C” are the responsibility of electrical technician personnel during the commissioning phase.

These distinctions help allocate tasks efficiently and ensure that commissioning procedures are systematically carried out, with corresponding test reports prepared and available as needed.

Related Engineering Article:

1. Vacuum Circuit Breaker Checks

2. SF6 Circuit Breakers Checks

3. Oil Circuit Breaker Checks

4. Relay Panel

5. Documentation Requirements for Electrical Equipment Inspection.