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Medium voltage switchgear QMT
79
Installa
tion manual
5.3
Open / Closing operations
Closing operation
Check that the springs of the operating mechanism are charged (red signal in the white part),
Push the closing push button (green) Closing will be shown by appearance of letter “I” in the red
part (see Fig. 59).
If a shunt closing release is present the remote control of the operation is possible.
N.B.: The circuit-breaker closing, manual or electric, is subordinated to the absence of any lock (key
present) and to the correct feeding of the under-voltage release if present.
Opening operation
Push the opening push button (red) (see Fig. 60). Opening will be shown by appearance of letter
“O” in the green part.
The TCB circuit breaker is equipped with shunt opening release; and you can also have remote opening.
Opening and closing push button
Fig. 60
Fig. 59
Open
Closed
Mech. signalling
for CB open/losed
Summary of Contents for QMT Series
Page 1: ...Y4419D 01GF 18W12 QMT Manuale installatore Installation manual ...
Page 2: ...2 IT UK ITALIANO 3 ENGLISH 45 QMT ...
Page 15: ...Quadri Media Tensione QMT Manuale installatore 15 Tipo 2 Tipo 3 Tipo 4 ...
Page 44: ......
Page 57: ...Medium voltage switchgear QMT 57 Installation manual Type 2 Type 3 Type 4 ...
Page 86: ...86 Notes ...
Page 87: ...87 ...