Description
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37
2013-07-08
Switching times
Fig. 49
Switching times
Closing time
= period between starting (command) of the closing movement and
the moment of contact touch in all poles.
Opening time
= period between starting (command) of the opening movement and
opening of the last pole.
Arcing time
= period from the start of the first arc to extinction of the arcs in all poles.
Break-time
= period between starting (command) of the opening movement and
extinction of the arc in the pole extinct last (= opening time + arcing time).
Close/Open time
= period in an OPEN/CLOSE cycle between the moment of
contact touch in the first pole during closing and the time when contact touch has
been cancelled in all poles during subsequent opening.
Dead-time
= period from the end of the current flow in all poles up to the start of
current flow in the first pole.
Closing time
< 75 ms
Opening time
1st shunt release
(Y1)
< 60 ms
2nd and 3rd release
(Y2, Y4, Y6, Y7)
< 55 ms
Arcing time
< 15 ms
Break time
1st shunt release
(Y1)
< 75 ms
2nd and 3rd release
(Y2, Y4, Y6, Y7)
< 70 ms
Dead time
300 ms
Close/Open time
1st shunt release
(Y1)
< 90 ms
2nd and 3rd release
(Y2, Y4, Y6, Y7)
< 70 ms
Minimum command duration
Closing solenoid
(Y9)
45 ms
1st shunt release
(Y1)
40 ms
2nd and 3rd release
(Y2, Y4, Y6, Y7)
20 ms
Shortest pulse time for breaker tripping signal
1st shunt release
(Y1)
> 15 ms
2nd and 3rd release
(Y2, Y4, Y6, Y7)
> 10 ms
Charging time if actuated electrically
(M1)
< 15 s
Synchronous operation error between the poles
≤
2 ms
Summary of Contents for 3AH37
Page 4: ...4 9229 9992 176 0D 2013 07 08 Blank page ...
Page 50: ...Installation 50 9229 9992 176 0D 2013 07 08 Blank page ...
Page 54: ...Operation 54 9229 9992 176 0D 2013 07 08 Blank page ...
Page 60: ...Maintenance 60 9229 9992 176 0D 2013 07 08 Blank page ...
Page 62: ...Index of keywords 62 9229 9992 176 0D 2013 07 08 Blank page ...