Appendix - Siemens SDV-4A Instruction Manual

Appendix

Table A-1
Type SDV Ratings
Type Definition: SDV-4A (Generic for SDV4), followed by Rated Maximum Voltage (kV), followed by Rated Short Circuit
Current (kA)
Rated
Maximum
Voltage
Circuit
Breaker
kV,rms
Type
15.5
SDV-15.5-20
SDV-15.5-25 15.5
SDV-25.8-20 25.8
SDV-25.8-25 25.8
27.6
SDV-27.6-20
SDV-27.6-25 27.6
1. Maximum voltage for which the breaker is designed and the upper limit for operation.
2. Current values in this column are independent of operating voltage up to and including rated maximum voltage.
3. Assymmettical interrupting capability is in accordance with ANSI/IEEE C37.04-1999 with % dc component = 48%.
Table A-2
15.5kV and 25.8kV Type SDV Circuit Breaker Control Data
Typical Spring Release (Close Coil), Trip Coil and Spring Charging Motor Characteristics
Control Voltages, ANSI C37.06 Table 8
Nominal
Close
48 VDC 36-56
125 VDC 90-140
180-280
250 VDC
120 VAC 104-127
240 VAC 208-254
1. Current at nominal voltage.
Table A-3
Interrupting Capacity Auxiliary Switch Contacts
Type Auxiliary Switch
Breaker Auxiliary Switch
Rated Rated
Voltage Continuous
Range Current
Factor Amperes,
Short-Time
Current
K A,rms kA,rms
1200
1.0
2000
1200
1.0
2000
1200
1.0
2000
1200
1.0
2000
1200
1.0
2000
1200
1.0
2000
Range Close Coil
Trip Amperes
28-56 10
70-140
140-280
104-127
208-254
2. 10A for coils mid-1993 and later. For coils supplied up to mid-1993, current is 23A.
Continuous Current
Amperes
20
Ratings
Rated Rated Transient
Short- Recovery Voltage
Circuit
Rated Rated
and
Peak Time to
Voltage E Peak T
2
kV,peak
20 29
25 29
20 48.5
25 48.5
20 52
25 52
Trip Coil
(1) (1)
Amperes
(2)
(2) 10
4 4
3
3
—
4
—
3
120 VAC
240 VAC
Non-Inductive Circuit Interrupting Capacity in Amperes
20
Inductive Circuit Interrupting Capacity in Amperes
20
Rated Rated
Interrupting Permissible
Time Tripping
Delay
Time Y
2
µs
ms/cycles sec
36 83/5 2
36 2
83/5
52 83/5 2
52 83/5 2
56 83/5 2
56 2
83/5
Spring Charging Motor
Amperes
(1) (1)
Run (Avg.) Inrush (Peak)
8.5 —
2.7
—
1.3
—
3.3 10.6
1.7 7.1
Control Circuit Voltage
48 VDC 125 VDC
20 20 10
20 20 10
Rated
Closing
and
Latching
Current
kA,peak
52
65
52
65
52
65
Charging
Seconds
10
8
8
8
8
250 VDC
2
2
43