Megabreak®
133
In case of short circuit, device inspection
In case of short circuit protection, go to Maintenance guide and check the following conditions:
• to check the arc chamber conditions and the wear status
• to check the contacts status
• to check the clamping of the power connections and the auxiliary circuit connections as shown
in the Start UP chapter
• in case of draw-out version device, take out the breaker and check the insertion clamps and the
inside conditions
Device closing
The closing of the breaker can be performed locally or by remote only after checking that the
system and the device conditions are consistant with the safety procedure.
OBJECT
CHECK
REMARK
Manual control
To performe at least two opening/closing cicles
Draw-out cell
To performe at least one cycle insert/test/draw
out postion
Motor
operator
Supply the motor operator and perform
at least 2 cycles opening/closing.
The motor operator must load the
springs after each opening/closing event
and stop when the springs are ready
Aux contacts
and alarms
To verify the correct signals
Insert/draw-out
contacts
To verify the correct signals
Shunt trip coil
Close the breaker.
Supply the coil and verify the tripping
Closing coil
Open the breaker.
Supply the coil and verify the closing
UVR coil
Cut the UVR power and check the
breaker tripping.
To verify that it’s impossibile to close the
breaker without UVR power
Key lock/pad
lock
To verify the proper functioning
Cable
interlock
Adjust and verify the proper functioning
discharged
charged
dis
cha
rge
d
10
5
2
0.7
0.4
5
0.6
0.5
Ir
2
0.9
8
0.8
10
xIr
3
Im
6
4 5
s
xIn
0.1
0.0
0.0
1
20
5
10
@6
Ir
30
tr
30
20
0.3
tm
0.2
0.3
0.2
0.1
I>1
.05
I>.9
0
xIr
ON
N
0.0
0
0.0
2
0.0
4
0.0
6
0.0
8 0.1
I
2
t=k
@1
2Ir
ME
M=
OF
F
s
1.
.5
Ii
Icw
4
3
2
8
6
10
12
15
xIn
charged
dis
charged
10
5
2
0.7
0.4
5
0.6
0.5
Ir
2
0.9
8
0.8
10
xIr
3
Im
6
4 5
s
xIn
0.1
0.0
0.0
1
20
5
10
@6
Ir
30
tr
30
20
0.3
tm
0.2
0.3
0.2
0.1
I>1
.05
I>.9
0
xIr
ON
N
0.0
0
0.0
2
0.0
4
0.0
6
0.0
8 0.1
I
2
t=k
@1
2Ir
ME
M=
OF
F
s
1.
.5
Ii
Icw
4
3
2
8
6
10
12
15
xIn
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
Содержание Megabreak 2500
Страница 1: ...Megabreak Manuale installatore Installation manual Y3142G 01GF 16W39...
Страница 2: ...2 Megabreak IT UK ITALIAN 3 ENGLISH 69...
Страница 32: ...32 Megabreak 6300 3 poli 68 130 130 130 130 130 68 90 30 85 30 354 100...
Страница 34: ...34 Megabreak 6300 4 poli 68 130 130 130 130 130 130 130 68 90 30 85 30 354 100...
Страница 68: ......
Страница 69: ...Megabreak Manuale installatore Installation manual Y3142G 01GF 16W39...
Страница 70: ...70...
Страница 100: ...100 Megabreak 6300 3 poles 68 130 130 130 130 130 68 90 30 85 30 354 100...
Страница 102: ...102 Megabreak 6300 4 poles 68 130 130 130 130 130 130 130 68 90 30 85 30 354 100...