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

Operating times, contacts
500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05
8.4

Vacuum circuit-breaker

Switching capacity and classification of switching devices
Vacuum circuit-breaker with switching capacity according to
IEC/EN 62271-100 / VDE 0671-100.
Type 2 with three-position disconnector
Rated voltage U
r
Rated normal current of feeders l
50 Hz Rated short-time withstand
current I
k
Rated peak withstand current I
Rated short-circuit breaking current I
Rated short-circuit making current I
60 Hz Rated short-time withstand
current I
k
Rated peak withstand current I
Rated short-circuit breaking current I
Rated short-circuit making current I
Number of operating cycles for disconnector, mechanical
Number of operating cycles for earthing switch, mechanical
Number of operating cycles for circuit-breaker, mechanical
Classification of circuit-breaker
Classification of disconnector
Classification of make-proof earthing switch
Rated operating sequence
Number of short-circuit breaking operations
1
Design option
The time indications in the following table refer to the application of the switchgear in
accordance with IEC 60721-3-3 Class 3K4. If the switchgear is operated beyond this range, the
indicated times may deviate.
Designation Component (item designation)
Closing time Closing solenoid
Opening time 1st shunt release
Additional
release
Arcing time
Break time 1st shunt release
Additional
release
Charging time (motor)
Dead time
Close-open contact 1st shunt release
time
Additional
release
1
Minimum command duration
CLOSED
r
Switchgear with t = 1 s I
k
Switchgear with t = 3 s I
k
p
sc
ma
Switchgear with t = 1 s I
k
Switchgear with t = 3 s I
k
p
sc
ma
2nd shunt release
C.t.-operated release
Undervoltage release
Low-energy release
2nd shunt release
C.t.-operated release
Undervoltage release
Low-energy release
2nd shunt release
C.t.-operated release
Undervoltage release
Low-energy release
Closing solenoid
kV 7.2 12 15 17.5
A 250 or 630
( ) up to kA
25
k th
( ) up to kA
20/21
k th
up to kA 63
up to kA 25
up to kA 63
( ) up to kA
25
k th
( ) up to kA
20/21
k th
up to kA 65
up to kA 25
up to kA 65
1,000
1,000
2,000
M1, E2, C1, S1
O - 3 min - CO - 3 min - CO
n 6 or 20
Unit Time
Type 2
(-Y9) ms < 30
(-Y1) ms < 35
(-Y3) ms < 35
(-Y6) ms < 35
(-Y7) ms < 35
(-Y6) ms < 35
ms < 15
(-Y1) ms < 50
(-Y3) ms < 50
(-Y6) ms < 50
(-Y7) ms < 50
(-Y6) ms < 50
s < 15
s 180
(-Y1) ms < 65
(-Y3) ms < 65
(-Y6) ms < 65
(-Y7) ms < 65
(-Y6) ms < 65
(-Y9) ms 40
Description
24
1
20/21
1
1
50/52.5
1
20/21
1
50/52.5
1
20/21
1
1
52/55
1
20/21
1
52/55
M0
E2
29/121