PAGE
10
NTI010hA
CHARACTERISTICS
Operating mechanism
type MR41E
ENGLISH
USE OF THE OPERATING MECHANISM IN SINGLE POLE OPERATED MODE
This operating mode is used when the 3P disconnector poles are not mechanically inter-connected. Three MR41E electrical
operating mechanisms are used (one operating mechanism, referred to as the MASTER, controls the two others referred to as
SLAVES), one on each pole and electrically inter-connected by an S-COM communication module.
The remote control orders are managed by the master, who then redirects them to the two slaves, via the S-COM module.
Each MR41E single pole operated electrical operating mechanism has a digital display that reports any single pole operated
mode faults.
The main faults are displayed on the master, and the secondary faults on each slave.
To acknowledge a fault :
1
2
1 2
To accept remote control orders, each MR41E electrical operating mechanism must:
- have its position selector on the REMOTE mode
- be in the same position as the Master (Open or Closed)
- have no current blocking faults on a disconnector.
If this is not the case (for example a slave has its selector in the local position), the master
detects that the operating condition is not nominal and will not accept orders. It will display a
fault that will make the single pole operated mode not usable.
i
Signalling Contacts
S-COM Module
Position selector
Leds
0 and l buttons
S-DIGIT digital display
Set the SELECTOR to manual
Then return to the original mode,
in the example opposite, via the
REMOTE mode.
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