P92x/EN CM/E11 Techncal Guide
Commissioning Guide
Page 8/28 MiCOM P921-P922-P923
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4.1.1 Visual inspection
Carefully examine the relay to see that no physical damage has occurred since
installation.
The rating information given under the top cover on the front of the relay should be
checked to ensure it is correct for the particular installation.
Ensure that the case earthing connections, upper right-hand corner at the rear of the
relay case, are used to connect the relay to a local earth bar using an adequate
conductor.
P0386XXa
FIGURE 1 : REAR TERMINAL BLOCKS ON SIZE 20TE CASE
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