Commissioning
328 PRS-7367
manual for details.
If the application-specific settings have been applied to the relay prior to commissioning, it is
advisable to make a copy of the settings so as to allow them restoration later. This could be done
by extracting the settings from the relay itself via printer or manually creating a setting record.
10.4.2 Operation Preparation
Check the printer wiring is normal, the print paper is ample, in order to print the test settings,
version, and a variety of experiment data.
Attention! The device should be checked before power on. The appearance should be no
damage. The module is plugged and fastened, and the insulation of the DC voltage circuit
meets the specified requirements. The indicators can refer to the commissioning record of the
device.
Attention! Disconnect the external AC circuit of the cubicle before the test to avoid causing
a safety accident, which will cause serious damage to the construction workers on site.
Attention! When you need to plug and unplug the device module, you should ensure the
device is powered off and make the anti-static measures to prevent the module damage or
performance degradation.
Attention! Temporarily open or shorted terminals should be well documented for reliable
recovery after the end of the test.
If it has been necessary to disconnect any of the external wiring from the protection in order to
perform any of the following tests, it should be ensured that all connections are replaced in
accordance with the relevant external connection or scheme diagram. Confirm current and voltage
transformer wiring.
10.5 Product Checks
These product checks cover all aspects of the relay which should be checked to ensure that it has
not been physically damaged prior to commissioning, is functioning correctly and all input quantity
measurements are within the stated tolerances.
10.5.1 Document Check
Document acceptance check include: protection inspection and factory test reports, certificates,
drawings, technical manual of related equipment.
10.5.2 Appearance Inspection
Check the front and back of the cubicle of various electrical components, terminal blocks,
hard-switch. All should be marked with the number, name, application and operating position. The
marked handwriting should be clear, neat, and not easy to bleach.
The device mark inspection shall include the product type, name, manufacturer's name and
trademark, date of manufacture and serial number, safety mark, etc., the mark and installation
location shall be consistent with the design drawings.
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