Specifications

L2234
L2778
L4681
L5179
Emax
21/161
Doc. No
Model
Apparatus
Scale
Page No
1SDH000460R0002
L5439
a) Positioning the moving part in the fixed part in the DISCONNECTED position
Lift the moving part as shown in the paragraph (3) and insert it in the fixed part guide, tilting it as shown in figure 2.
The manual connection must allow the edge (E) of the circuit-breaker guide to slide under the blocks (D) of the fixed part. Remove
the lifting devices.
The position reached is stable and allows for any inspections of the circuit-breaker.
Push the moving part as far as the stop in the fixed part.
Close the compartment door.
b) Passing from the DISCONNECTED to the TEST ISOLATED position.
- Make sure that the indicator (9) is in the DISCONNECTED position.
- For the connection procedure, make sure that the key (12) is in the correct position and/or the padlock (14), if any, has been
removed.
- Make sure that the circuit-breaker is open.
- Push the moving part right into the fixed part.
- Lower the releasing lever (11).
- Insert the crank handle in the corresponding coupling (10).
- Proceed to turn the crank handle clockwise until the TEST ISOLATED indication appears on the indicator (9). During the initial
turns, the crank handle must oppose no any particular resistance to rotation.
- Should it be necessary to carry out offline circuit-breaker operations, the crank handle must be removed.
12
14
10
9
11
Fig. 30
c) Passing from the TEST ISOLATED position to the CONNECTED position
- Make sure that the circuit-breaker is open.
- Lower the releasing lever (11).
- Insert the crank handle in the corresponding coupling (10).
- Proceed to turn the crank handle clockwise until the CONNECTED indication appears on the indicator (9).
- Remove the crank handle to enable the circuit-breaker to close.
11
10
9
Fig. 31
d) Passing from the CONNECTED position, to the TEST ISOLATED position, to the DISCONNECTED position
- Repeat the connection procedures changing the direction for turning the crank handle to anti-clockwise. Open the door in the
disconnected position.