Fimer MVCS, Hardware Manual

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39
8 - Start-up and operation
Task Additional information
General Building
Make sure that Commissioning Pre-Conditions & Pre-Commissioning Checklist have been
successfully completed
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Make sure that the installation of the inverters has been properly done See inverter product manual and commissioning manual
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Make sure that the main switch of the Auxiliary service transformer is opened.
In general, make sure that the connection is going to be done in
“no load” conditions.
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Make sure that the low voltage main circuit breaker “MCB” (if present), is open.
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Make sure that the fuse holders in which the inverters are connected are opened, and the
inverters are disconnected
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Make sure that all the local regulations, applicable laws, and standard are met. Contact local grid operator and competent authorities
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Turn the earthing switch on the grid side of the MV switchgear to the “not earthed” position.
Applicable for C (L) module(s) MV switchgear
See MV switchgear documentation “Switchgear”
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Ask permission to MV grid operator for connect the station to the power grid. Wait until the
station is connected to the power grid before proceeding.
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Turn the disconnecting switch on the grid side of the MV switchgear to “closed” position.
Applicable for C (L) module(s) MV switchgear
See MV switchgear documentation “Switchgear”
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Turn the earthing switch on the MV Transformer side of the MV switchgear to the “not
earthed” position.
Applicable for V (P) module MV switchgear
See MV switchgear documentation “Switchgear”
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Turn the disconnecting switch on the MV transformer side of the MV switchgear to the closed
position.
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Close the main breaker of the MV transformer.
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Make sure that the voltage level on the low voltage side of the MV transformer is correct.
PVS-175: 800V
PVS-120: 480V
PVS-100: 400V
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Run the MV transformer with no load for several hours.
See MV transformer documentation
“Transformer Specification”
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Check the MV transformer for any malfunctions. Observe the temperature, listen to audible
changes, etc.
See MV transformer documentation
“Transformer Specification”
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Close the low voltage main circuit breaker “MCB” (if present)
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Close the Auxiliary service transformer primary breaker.
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Check that the Auxiliary service transformer secondary winding voltage level is 230/400 V. Must be 230/400 V ±10%
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Close the Auxiliary service transformer secondary breaker.
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Close the auxiliary breakers one by one. After closing each breaker, check the voltage values.
Maintain "Closed" condition for the auxiliary service lines with
load. Only open switches/breakers with loads
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Close the fuse base switches of the inverter inputs one by one. Check each fuse base for
voltage values directly in the inverter input, before closing the next fuse base.
Inverters must be de-energized. See inverter manual.
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Connect (turn on) the inverters one by one following inverter commissioning procedure. See inverter manual.
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