Appendix - Siemens SDV-R Instruction Manual

Appendix

Table 7: Technical ratings
Rated withstand
voltages
Rated Lightning
maximum impulse
voltage (BIL)
Circuit
breaker
type kV, rms kV
3
38.0-25 38.0 200/258
38.0-31.5 38.0 200/258
38.0-40 38.0 200/258
Addtional key ratings for SDV-R and
SDV-R-AR:
• Rated closing time <45 ms
• Rated opening time <30 ms
• Rated mechanical switching time
(vacuum circuit breaker open to ground
switch close) 12-16 ms
• Grounding switch rated short-time
current 12.5 kA
• Grounding switch rated closing and
latching current 32.5 kA.
Table 8: Control data
Stored-energy operator
Range
Nominal Close Trip
125 Vdc 90-140 70-140
250 Vdc 180-280 140-280
120 Vac 104-127 104-127
240 Vac 208-254 208-254
Instruction manual
Rated
short-
circuit and Rated
Power short-time interrupting
frequency current time
1
kV kA, rms ms/cycles
80 25 50/3
80 31.5 50/3
80 40 50/3
Addtional key ratings for SDV-R-AR:
• Rated accessibility type 2B
• Rated internal arcing short-circuit
current 25, 31.5, or 40 kA
• Rated arcing duration 0.5 s.
Close coil Trip coil
1, 6
A A
2.1 7.4/4.8
2.1 9.6/4.2
2.0 —
2.0 —
| Types SDV-R and SDV-R-AR distribution circuit breakers
Rated transient
recovery voltage
Rated u TRV t time to
c 3
continuous peak voltage
current value u
c
A, rms kV μs
1,200,
71.7 59
2,000
1,200,
71.7 59
2,000
1,200,
71.7 59
2,000
Footnotes:
1.
2.
Footnotes:
1.
Spring charging motor
Amperes Charging
2.
run (avg.) seconds
4 10
2 10
6 10
3 10
Rated Rated
2
permissible closing
tripping and
delay time latching
Y current
sec kA, peak
2 65
2 82
2 104
TRV values are in accordance
with ANSI/IEEE C37.04-2018
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.
First value is for standard 50 ms/
three-cycle interrupting time.
Second value is for optional 83
ms/five-cycle interrupting time
For stored-energy operator,
power requirement for second
trip coil is approximately 70 W
(dc) or 50 VA (ac). Power
requirement for undervoltage
device is approximately 20 W
(dc) or 20 VA (ac).
53