T1689 Technical Manual Rev 07
Maintenance
MV3000 Air Cooled DELTA
Introduction
Page 139
8.
MAINTENANCE
WARNING
•
This equipment may be connected to more than one live circuit.
•
Disconnect ALL supplies before working on the equipment.
•
Ensure system is isolated using appropriate lock out – tag out (LOTO) procedures.
•
Wait at least 5 minutes after isolating supplies and check that voltage between DC+ and DC- has reduced to a
safe level before working on this equipment.
•
Do not use mobile phones or radio communication equipment within 2 metres (6 feet) of the equipment.
•
High Voltages
Replace all shrouds and close all doors before energising the equipment.
•
Ensure appropriate PPE is worn at all times.
•
Items marked with weights greater than 20kg (44lb) should only be moved with lifting apparatus.
CAUTION
•
These items should only be fitted by a skilled person who has been trained by GE Power Conversion or an
authorised training centre.
8.1
INTRODUCTION
This section describes maintenance for the DELTA modules and the controller in an air-cooled DELTA System.
No component maintenance is described for the module or the controller. If either product requires
component maintenance, a request for assistance should be made to a GE Power Conversion via the
appropriate national address at the back of this manual.
Some users may have the facilities, skilled personnel and the appropriate lifting equipment to enable a
replacement DELTA module to be fitted should this become necessary. This section of the manual therefore
includes sufficient detail to enable such users to remove and refit a module.
Due to the technology used in the DELTA modules there is a requirement for periodic maintenance to be
carried out and this is also detailed in this section of the manual.
NOTE: Throughout this section of the manual reference to a DELTA module should be read as applying to either a
rectifier or transistor module unless a type of module is specifically stated.
8.1.1
Restarting The System Following Maintenance
Following any maintenance procedure, the system should be restarted following the instructions provided in
Section 6: CDM Commissioning Guidance.
8.2
SPECIAL TOOLS, EQUIPMENT & MATERIALS
In addition to commonly available hand tools such as spanners, and screwdrivers, certain specific tools are
required to perform maintenance tasks on a DELTA drive system:
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