COMMISSIONING
MVE User Manual (710-17074-00G) |
61
8.
Commissioning
There are three main stages when commissioning the
MVE:
1.
Physical checks - mechanical assemblies (power assembly and enclosure)
2.
Physical checks - electrical assemblies (power supplies and subsystem)
3.
Operating tests (motor simulation, low voltage test mode, medium voltage commissioning test)
8.1
Physical Checks: Mechanical Assemblies
Power assembly
Before beginning the commissioning process, ensure that the power assembly is in good condition (see also
Receiving
on page 11)
and all connections are correct.
1.
All critical bolts on the power assembly are
checked and marked in the factory (1). Check that
all marks are still aligned.
If any marks are out of alignment, contact your
local supplier for advice. See
Power Terminations
on page 15 for details on phase arm termination.
2.
Check the fibre-optic connections for any loss/poor
connection. Check also the fibre-optic cables for
any sign of visible damage or sharp bend.
3.
Check all other connections and leads on PCBs.
4.
Check each phase arm visually for any sign of
damage.
Enclosure
Check that the enclosure contains all agreed components (a list is included in the electrical drawings) and is in a fit state for
commissioning, including safety precautions and adequate isolation between the low voltage and medium voltage compartments.
1.
Check that all agreed components have been installed into the enclosure and have been fitted correctly, with adequate
insulation and tight connections:
•
power circuit as per electrical drawing, including terminations, etc.
•
cable connections
•
earth bonding
•
isolator / earthing switch mechanism
•
input / output bushing
2.
Check that all LV connections < M5 (e.g. LV control terminals) are tight.
3.
Check that there is no swarf, dust or other foreign material in the enclosure.
8.2
Physical Checks: Electrical Assemblies
Power supplies and subsystem
Run the following test to ensure that the MVE power supply and electrical subsystem show the expected characteristics.
1.
Disconnect the power supply connector on the controller.
2.
Disconnect the power supply and relay connectors on the power interface board.
3.
For each phase arm, disconnect the power supply to the gate drive board and adaptor board (depending on the model,
see
Terminations for Adapter Board and Gate Drive Board
on page 22)
4.
To check the SCRs, perform an insulation resistance test with a voltage range of 500 ~ 1000 V (using a resistance
insulation tester).
1.
Test L1~L3 to earth and T1~T3 to earth. The result must be > 1 MΩ.
2.
Test L1~T1, L2~T2, L3~T3. The result must be as follows:
V02
V03-V04
V06
V11
100 kΩ
200 kΩ
300 kΩ
500 kΩ
