Vacuum Circuit-Breaker - Siemens 8DJH Series Installation And Operating Instructions Manual

Description
Type 2 for individual switchgear panels and panel blocks
Rated voltage U
r
Rated normal current of feeders I
Rated short-time withstand current I
Rated peak withstand current I
p
Rated short-circuit breaking current I
Rated short-circuit making current I
Number of mechanical operating cycles for
disconnector / earthing switch
Number of mechanical operating cycles for circuit-
breaker
Classification, electrical
Rated operating sequence
Number of short-circuit breaking operations
* 21 kA at 60 Hz
Operating times
Closing time
Opening time
44
8.4

Vacuum circuit-breaker

Switching capacity and classification of switching devices
Vacuum circuit-breaker with switching capacity according to IEC/EN 62 271-100 /
VDE 0671-100.
r
for switchgear with
k
t = 1 s
k
for switchgear with
t = 3 s
k
sc
ma
Classification
Classification
2)
20 kA in preparation
Operating times
Closing time
Charging time
Opening time
Arcing time
Break time
Dead time
Close-open contact time
Minimum command duration
CLOSED
OPEN
OPEN
Shortest impulse duration of
the c.b. tripping signal
The interval of time between the initiation (command) of the closing operation and
the instant when the contacts touch in all poles.
The interval of time between the initiation (command) of the opening operation and
the instant when the contacts separate in all poles.
Revision 03 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * 500-8067.9
kV 7.2
A
I ( ) kA
k th
I ( ) kA
k th
up to kA
up to kA
up to kA
n
n
n
Component
Shunt release (Y1)
Additional release (Y2), (Y4),(Y7)
3AX 11
Shunt release (Y1)
Additional release (Y2), (Y4),(Y7)
3AX 11
Shunt release (Y1)
Additional release (Y2), (Y4),(Y7)
3AX 11
Closing solenoid (Y9)
Shunt release (Y1)
Additional release (Y2), (Y4),(Y7)
3AX 11
12 15 17.5
250, 630
20
20
50
20 *
50 40
1,000 / M0
2,000 / M1
E2, C1
O-3min-CO-3min-CO
6 or 20
Duration
for type 2
25
< 15
< 30
< 50
< 15
< 50
< 50
3 min
< 80
< 80
60
30
< 40
10
24
16
16
40
2)
16
Unit
ms
s
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms