ABB ETL600, Instruction Manual

Page: 215 / 382

ETL600 1KHW001489-EN
ABB Switzerland Ltd
7.3. Commissioning of the PLC equipment
Commissioning of the PLC equipment can commence once the
measurements of the line of transmission have produced satisfactory
results. The following items should be checked before switching on the
auxiliary supply. Any discrepancies and anomalies must be rectified.
7.3.1. Preliminary tests and checks
•
Check that the cabinet is earthed in accordance with regulations.
•
Check the polarity of the auxiliary supply connections.
•
Check that the external connections go to the correct terminals in
the cabinet according to the specific drawings for the plant.
•
Check that all the internal cables are fitted and correctly inserted.
•
Check that all the units according to the specific layout diagram for
the plant are fitted and in the correct locations.
•
Check that all programming and settings in the units are in
accordance with the specific settings for the plant.
7.3.2. Tests according to the commissioning instructions
The equipment was carefully tested and calibrated according to
document ‘Programming and Testing Instructions ETL600 Rel. 1’ prior
to delivery and therefore all the internal signal levels will already be at
their correct values. Thus only those settings need to be carried out,
which are influenced by the practical operating conditions on site.
The ‘Commissioning Instructions ETL600 Rel.1’ are available in the
annex of this manual.
The frequency response of the PLC channel can be checked and
equalized according to the document ‘Equalization Instructions
ETL600 Rel.1’ in the annex.
Caution
Do not close/establish the connections to the
protection devices until the internal (NSD600) and
external teleprotection equipment are properly
commissioned.
Commissioning November 2005 7-9