Commissioning

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, or NOM-029-STPS-2011. This equipment must only be installed and serviced by qualified, trained, and certified electrical personnel. Only qualified electrical personnel familiar with medium voltage circuits should perform the instructions in this bulletin. Personnel must understand the hazards involved in working with or near medium voltage equipment. Qualified electrical personnel must perform work in accordance with national and local electric codes. Perform such work only after reading and understanding all of the instructions in this bulletin. Before performing assembly, visual inspections, testing, or maintenance on the equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, grounded, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of back-feeding. Never disconnect the main trip source of energized equipment. Always use a properly rated voltage sensing device to confirm power is off. Before making any electrical connections, ensure that all leads to be connected are de-energized and proper safety grounds are applied. Metal enclosed switchgear has interlocks designed to minimize hazards to the user. The user of this device is responsible for recognizing the potential hazards, for wearing personal protective equipment, and for taking adequate safety precautions. Do not make any adjustments to the equipment or operate the system with safety features removed. Contact your local Schneider Electric representative for additional instructions if the device does not function as described in this manual. Handle this equipment carefully and install, operate, and maintain it correctly in order for it to function properly. Ensure that the ground circuit is correctly assembled. Preventive maintenance operations must be carried out regularly. Follow regular inspection, checking the gas pressure and condition of the external elements, and carry out the usual cleaning task. Refer to Maintenance Program. Carefully inspect your work area and remove any tools and objects left inside the equipment. Replace all devices, doors, and covers before turning on the power to this equipment. All instructions in this manual are written with the assumption that the customer has taken these measures before performing installation, operation, maintenance, or testing. Failure to follow these instructions will result in death or serious injury.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, or NOM-029-STPS-2011.
This equipment must only be installed and serviced by qualified, trained, and certified electrical personnel.
Only qualified electrical personnel familiar with medium voltage circuits should perform the instructions in this bulletin. Personnel must understand the hazards involved in working with or near medium voltage equipment.
Qualified electrical personnel must perform work in accordance with national and local electric codes.
Perform such work only after reading and understanding all of the instructions in this bulletin.
Before performing assembly, visual inspections, testing, or maintenance on the equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, grounded, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of back-feeding.
Never disconnect the main trip source of energized equipment.
Always use a properly rated voltage sensing device to confirm power is off.
Before making any electrical connections, ensure that all leads to be connected are de-energized and proper safety grounds are applied.
Metal enclosed switchgear has interlocks designed to minimize hazards to the user. The user of this device is responsible for recognizing the potential hazards, for wearing personal protective equipment, and for taking adequate safety precautions.
Do not make any adjustments to the equipment or operate the system with safety features removed. Contact your local Schneider Electric representative for additional instructions if the device does not function as described in this manual.
Handle this equipment carefully and install, operate, and maintain it correctly in order for it to function properly.
Ensure that the ground circuit is correctly assembled.
Preventive maintenance operations must be carried out regularly.
Follow regular inspection, checking the gas pressure and condition of the external elements, and carry out the usual cleaning task. Refer to Maintenance Program.
Carefully inspect your work area and remove any tools and objects left inside the equipment.
Replace all devices, doors, and covers before turning on the power to this equipment.
All instructions in this manual are written with the assumption that the customer has taken these measures before performing installation, operation, maintenance, or testing.

Failure to follow these instructions will result in death or serious injury.

Verify the following:

The equipment is correctly installed. Check the level adjustment and floor anchoring.
All high and low voltage electrical connections have been correctly installed and tested. If any of the three-position isolating switch with ground functions are not going to be in operation and are without incoming cables, the corresponding grounding switch must be closed and locked by means of a padlock to avoid possible misoperation. It is advisable to fit insulating caps on the connectors, which provide identical electrical and mechanical characteristics as the “T” connectors. These insulating caps can be ordered from the connector supplier.
Mechanical operation of all devices (three-position isolating switch with ground, and so forth) and the interlocks of each unit.

It is important to carry out the following operations:
- Five manual closing/opening operations
- Five electrical closing/opening operations
- Five opening operations by tripping coil

After performing all the checks described above, perform the high voltage cable tests detailed in Cable Test.

The incoming cables are now ready to be energized, while keeping the corresponding three-position isolating switch with ground in the open position.

Check for the following:

Voltage presence on cables. The indications of the voltage presence indicator system must not be used as absence of voltage indicator. Always use a properly rated voltage sensing device to confirm power is off. Refer to Live Line Indicator (LLI).
Concordance of phases

Once all requirements are fulfilled, the unit is ready to be put into service by operating the circuit breakers.