Siemens SDV7, Инструкция по эксплуатации, Страница: 48 / 56

48
Appendix
Table 10: Technical ratings
Circuit
breaker
type SDV7
Rated
maximum
voltage
Rated withstand
voltages
Rated
short-
circuit and
short-time
current
Rated
interrupting
time
1
Rated
continuous
current
Rated transient
recovery voltage
2
Rated
permissible
tripping
delay time
Y
Rated
closing
and
latching
current
Lightning
impulse
(BIL)
Power
frequency
u
c
TRV
peak
value
t
3
time to
voltage
u
c
kV, rms kV
3
kV kA, rms ms/cycles A, rms kV μs sec kA, peak
15.5-20 15.5 110/142 50 20 50/3
1,200,
2,000
29.2 32 2 52
15.5-25 15.5 110/142 50 25 50/3
1,200,
2,000
29.2 32 2 65
15.5-31.5 15.5 110/142 50 31.5 50/3
1,200,
2,000,
3,000
29.2 32 2 82
15.5-40 15.5 110/142 50 40 50/3
1,200,
2,000,
3,000
29.2 32 2 104
27.6-20 27.6 150/194 60 20 50/3
1,200,
2,000
52.1 45 2 52
27.6-25 27.6 150/194 60 25 50/3
1,200,
2,000
52.1 45 2 65
38.0-20 38.0 200/258 80 20 50/3
1,200,
2,000
71.7 59 2 52
38.0-25 38.0 200/258 80 25 50/3
1,200,
2,000
71.7 59 2 65
38.0-31.5 38.0 200/258 80 31.5 50/3
1,200,
2,000,
2,500
71.7 59 2 82
38.0-40 38.0 200/258 80 40 50/3
1,200,
2,000,
2,500
71.7 59 2 104
Footnotes:
1
Standard 50 ms (3-cycle) with 48 Vdc, 125 Vdc or
250 Vdc trip voltage or capacitor trip with 83 ms
(5-cycle) interrupting time optional (for stored-
energy only).
2
TRV values are in accord with IEEE C37.06-2009.
TRV peak value u
c
is roughly equal to historic E
2
value in ANSI C37.06-2000. Value t
3
, time to
voltage u
c
, is approximately 1/1.138 times the T
2
value in ANSI C37.06-2000.
3
First value is full-wave impulse withstand circuit
breaker open or closed. Second value is chopped-
wave impulse withstand, applicable only with
circuit breaker closed.