PRS-7910
PRS-7910 45
10.2 Commission Tools
Minimum equipment required:
• Multifunctional dynamic current and voltage injection test set with interval timer.
• Multimeter with suitable AC current range and AC/DC voltage ranges of 0〜440V and 0〜
250V respectively.
• Continuity tester (if not included in the multimeter).
• Phase angle meter.
• Phase rotation meter.
NOTICE!
Modern test set may contain many of the above features in one unit.
Optional equipment:
• An electronic or brushless insulation tester with a DC output not exceeding 500V (for
insulation resistance test when required).
• A portable PC, with appropriate software (this enables the rear communications port to be
tested, if this is to be used, and will also save considerable time during commissioning).
• EIA RS-485 to EIA RS-232 converter (if EIA RS-485 IEC60870-5-103 port is being tested).
10.3 Setting Familiarization
When commissioning this device for the first time, sufficient time should be allowed to become
familiar with the method by which the settings are applied. A detailed description of the menu
structure of this relay is contained in this manual.
With the front cover in place all keys are accessible. All menu cells can be read. The LED
indicators and alarms can be reset. Protection or configuration settings can be changed, or fault
and event records cleared. However, menu cells will require the appropriate password to be
entered before changes can be made.
Alternatively, if a portable PC is available together with suitable setting software (such as PRS IED
Studio software), the menu can be viewed one page at a time to display a full column of data and
text. This PC software also allows settings to be entered more easily, saved to a file on disk for
future reference or printed to produce a setting record. Refer to the PC software user manual for
details. If the software is being used for the first time, allow sufficient time to become familiar with
its operation.
10.4 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
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