GE MiCOM P40 Agile Technical Manual page 429

Commissioning
MiCOM P40 Agile P442, P444
1 INTRODUCTION
The MiCOM P44x distance protection relays are fully numerical in their design, implementing
all protection and non-protection functions in software. The relays employ a high degree of
self-checking and, in the unlikely event of a failure, will give an alarm. As a result of this, the
commissioning tests do not need to be as extensive as with non-numerical electronic or
electro-mechanical relays.
To commission numerical relays, it is only necessary to verify that the hardware is
functioning correctly and the application-specific software settings have been applied to the
relay. It is considered unnecessary to test every function of the relay if the settings have
been verified by one of the following methods:
Extracting the settings applied to the relay using appropriate setting software (preferred
method) using the operator interface.
To confirm the product is operating correctly once the application-specific settings have been
applied, a test should be performed on a single protection element.
Unless previously agreed, the customer will be responsible for determining the application-
specific settings to be applied to the relay and for testing of any scheme logic applied by
external wiring and/or configuration of the relay's internal programmable scheme logic.
As the relay's menu language is user-selectable, it is acceptable for the Commissioning
Engineer to change it to allow accurate testing as long as the menu is restored to the
customer's preferred language on completion.
To simplify the specifying of menu cell locations in these Commissioning Instructions, they
will be given in the form [Courier reference: COLUMN HEADING, Cell Text]. For example,
the cell for selecting the menu language (first cell under the column heading) is located in the
System Data column (column 00) so it would be given as [0001: SYSTEM DATA,
Language].
Before carrying out any work on the equipment, the user should be familiar with the
contents of the Safety and Installation chapters of this manual.
P44x/EN CM/Hb6
(CM) 9-5