ABB PVS-175 Series, Руководство по оборудованию, Страница: 10 / 72

Allowed usage
• The PVS-175 medium voltage station (MVS) is designed to transform AC current from
a group of inverters and finally feed to a medium voltage grid. Use the MVS only at its
permissible input/output ratings and ambient conditions. Make sure this compliance is
satisfied before commissioning.
• The operation and maintenance of the MVS must be carried out by certified technicians
that fulfill all local skill set and safety requirements. Any unqualified personnel must
maintain a safe distance from the MVS. All activities must be in accordance with the
criteria described in the ABB technical documents and local regulations.
• Make changes to the MVS only with the direct authorization of ABB. Any alterations
done outside ABB approval will invalid the warranty for the product. ABB is not liable
for any damages caused by these changes.
• The MVS is a non-walk-in type station, designed to be operated from the outside. Make
sure the side doors are closed at all times during operation and that no personnel is
inside or in the near vicinity of the MVS.
Safe installation, start-up and maintenance
This section contains the safety instructions which you must follow when installing,
commissioning and maintaining the MVS. If ignored, physical injury or death may follow, or
damage may occur to the equipment.
• Only authorized electricians are allowed to install, start-up and maintain the MVS.
Working methods, tools, components etc. must follow the IEC regulations.
• Obey all local safety regulations concerning electrical stations.
• The MVS should be energized and de-energized only by an authorized person who has
the task-specific instructions for the operation of an MV substation and permission from
the on-site foreperson in charge of electrical work.
• If other people must be in the vicinity while the door is open, warn them, and if required,
provide supervision and guidance.
￭ General safety instructions
WARNING!
Before you perform any work in the MVS, obey the following safety precautions.
1. Clearly identify the work location.
2. Read the safety instructions of the work area and the component you are working on.
See the subsections below and the component-specific manuals.
3. Disconnect and secure against reconnection.
4. Disconnect all possible power supplies (external, auxiliary and inverters) and open all
base fuse switches. Lock the disconnectors in the open position and attach a warning
notice to them. After disconnecting power to the inverters, always wait until the stored
energy of the inverters is discharged. See also, inverters manual.
5. Use protection against any live parts.
6. Take special precautions when you work close to exposed conductors.
7. Measure to ensure that there is no voltage connected.
8. Carry out earthing (grounding) and short circuiting.
9. Issue a permit to work.
10 Safety instructions
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