Replacement Of The Input Module; Location Of Securing Screws For Input Module - GE MiCOM P40 Agile Technical Manual

P44x/EN MT/Hb6
(MT) 10-12
Refit the front panel using the reverse procedure to that given in section 1.3.2. After refitting
and closing the access covers on case sizes 60TE, press on the location of the hinge-
assistance T-pieces so that they click back into the front panel moulding.
Once the relay has been reassembled after repair, it should be recommissioned in
accordance with the instructions in sections 1 to 7 (inclusive) of this document.
1.3.2.3

Replacement of the input module

The input module comprises of two boards fastened together, the transformer board and the
input board.
The module is secured in the case by two screws on its right-hand side, accessible from the
front of the relay, as shown in Figure 6. Remove these screws carefully as they are not
captive in the front plate of the module.
Figure 6 - Location of Securing Screws for Input Module
On the right-hand side of the analogue input module there is a small metal tab that brings out
a handle. Grasping this handle firmly, pull the module forward, away from the rear terminal
blocks. A reasonable amount of force will be required to achieve this due to the friction
between the contacts of two terminal blocks, one medium duty and one heavy duty.
Note:
Remove the module from the case, taking care as it is heavy because it contains all the
relay's input voltage and current transformers.
Care should be taken when withdrawing the input module as it will suddenly come
loose once the friction of the terminal blocks has been overcome. This is particularly
important with loose relays as the metal case will need to be held firmly whilst the
module is withdrawn.
Maintenance
MiCOM P40 Agile P442, P444