User Manual 200 kVA-1200 kVA UPS
6 Maintenance
77
6 Maintenance
The parts and components in the UPS cabinet are fixed to a solid metal frame, and all maintainable parts and
components are located for easy disassembly with minimal decomposition. This design allows authorized
maintenance personnel to perform routine maintenance and repairs quickly. In order to ensure the normal
operation of UPS system, a regular performance inspection plan must be made. Regular routine operation
inspection and system parameter inspection can ensure that the system runs efficiently without failure for many
years.
6.1 Important Safety Information
The UPS system is used to supply the power for the equipment even in the event of failure in the mains. The UPS
module is internally safe only when the main switch, the bypass switch, the output switch and the battery switch
are disconnected and the electrolytic capacitor is discharged fully. After disconnecting all switches except for the
maintenance switch, the maintenance personnel should wait for at least 5 minutes for the capacitor to be
discharged before approaching the interior of the UPS module.
CAUTION
Only maintenance personnel authorized and trained by us can carry out repair and
maintenance.
Lethal voltage exists. This equipment cannot be used when the cabinet door is opened or the
protective plate is removed.
Since the battery pack is an energy source, after disconnecting the battery switch, the energy in the battery
pack will not be released. Therefore, do not touch any internal area of the battery pack. There is always
voltage inside the battery pack. If you need to replace the battery, contact your supplier.
If it is really required to maintain the battery pack, please refer to the battery maintenance instructions in the
battery manufacturer's operation manual, or contact your maintenance representative. When operating on or
around the battery, please follow the following rules:
Remove watch, ring, or other metal object.
Use a tool with an insulated handle.
Wear rubber gloves and shoes.
Do not place tools or metal parts on top of the battery or battery case.
Disconnect the charging power supply before connecting or disconnecting the terminals.
Check whether the battery is inadvertently grounded, and if so, remove the grounding source. Contacting
with any part of a grounded battery can cause an electric shock. If such grounding sources is removed during
installation and maintenance, it is possible to reduce the risk of electric shock.
Replace the battery with the same number and model of sealed lead-acid battery.
The batteries must be properly disposed, and please refer to local disposal requirements.
6.2 Room Management
Room management includes environment safety management and equipment management
1.
The basic task of environmental safety management is to ensure that the environment temperature, relative
humidity, cleanliness, electrostatic interference, noise, strong electromagnetic interference and other elements
meet the requirements, ensure the stable performance and reliable operation of power equipment, safe
production, and the normal power supply of electrical equipment.
Summary of Contents for EA990 Super
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