Inspection On Site - Verification Of The Active Filter After Installation - ABB PQFM Instruction Manual

LV Active Filters PQF
Commissioning report
8.11.2 Inspection on site – verification of the active filter after installation
Ambient conditions
Check the ambient temperature (< 40°C/104°F) (if > 40°C/104°F, derating is required)
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Check the installation altitude (< 1000m/3300ft) (if > 1000m/3300ft, derating is required)
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Check the ventilation (room and enclosure)
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Ensure that no sources of conductive dust are present
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Internal connections (a)
Disconnect the filter from the supply including the auxiliary circuit (disconnection recommended
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by upstream protection)
Remove filter internal protection grid
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DC capacitor voltage low enough to operate safely (DC voltage measurement)
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Change auxiliary transformer primary tap setting to correspond to network nominal voltage
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rating
(b)
Wiring of main and auxiliary circuit
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Tightness of all electrical connections
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Connectors properly plugged in
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Fixation of components
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Remove anti-corrosion capsules installed at the inside of the filter door (if still present)
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Clearances
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Cooling fans running freely
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Address of each filter unit in a multi-unit system set to a different value and 'main' master has
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the lowest address
(c)
CAN bus terminated properly on each unit of a multi-unit system
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CAN bus communication cable between the different units properly installed
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Earth interconnection between the different units installed
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Installation (a)
Check cross-sections of power supply cables (L1-L2-L3)
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Check cross-section of protective conductors (PE) (> = 16 mm²) connected to each cubicle and
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between cubicles.
Check tightness of conductor fixations
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The material of busbars, terminals and conductors must be compatible (corrosion)
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Check the setting and operation of the protective apparatus
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Check rated current of the power supply cable fuses (if applicable)
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Check the cabling of the digital I/O (if present)
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Check the voltage in accordance with the specification
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Check the phase rotation order
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(clockwise) (b)
For multi-unit filters, check that the same phases are connected to the same filter power
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terminals for the individual units
Check visually the current transformers
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Ratio
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Installed at the right side (feeding-side of the active filter)
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For multi-unit filters, check that the CTs of all units are cabled in a daisy chain fashion with return
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path (d)
Remove all jumpers of all current transformers (CTs and SCTs)
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Project:
Issued by:
Date:
at the filter power terminals (with filter auxiliaries off)
Manual Power Quality Filter PQFM ç Commissioning instructions 179
(c)
(c)
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