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SPS2 circuit breaker family
SPS2 circuit breaker family
SPS2 Family Circuit Braker-8/2012.indd 6
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Table of contents
Siemens quality inside and out
4
SPS2 15 kV – 72.5 kV
6
SPS2 123 kV – 170 kV
8
SPS2 245 kV
10
SPS2 362 kV
12
SPS2 550 kV
14
Common components
16
Independent pole operation (IPO)
20
Specifications
22
Live-tank option
24
Shipment and installation
25
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Siemens quality
inside and out
The durable dead-tank construction of the
SPS2 circuit breaker is designed for reliable,
long lasting performance in all types of
operating conditions. Siemens is committed
to investing in research and development as
well as interpreting field experiences in order
to bring you a line of circuit breakers that you
can rely on under the most demanding
situations, with the added ability to meet
your needs of system growth and expansion.
Siemens combines the latest in circuit
breaker technology with the economies of
scale and a streamlined process at our
manufacturing plant in Jackson, Mississippi.
Our facility is quality certified to:
ISO 14001:2004
OHSAS 18001:2007
ISO 9001:2008.
The manufacturing process is designed
to provide measurable quality and cost
containment. To ensure product performance
and customer satisfaction, every circuit
breaker is tested to ANSI and IEC standards
in one of the world’s largest high-voltage
laboratories.
Siemens’ high-voltage circuit breakers offer
an optimum technical and economical
solution for virtually any requirement. Our
high-voltage products have low life cycle
costs, short commissioning times, and are
earthquake resistant and weatherproof.
All of our live- and dead-tank circuit breakers,
as well as our gas-insulated switchgear, are
equipped with common components.
Longevity, reliability, and a broad range of
solutions for diverse climate zones around
the world distinguish Siemens high-voltage
circuit breakers from all others.
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Why Siemens
outperforms
the rest
With forty years of experience combined
with more than 100,000 breakers installed
worldwide, Siemens utilizes the best breaker
technology available, providing reliable
performance for a wide range of voltage
requirements from 15 kV through 800 kV.
Our SPS2 breaker family is not just another
breaker. Seismically qualified, each SPS2
rating has been tested to 10,000 mechanical
operations.
Global components for all SPS2 circuit
breakers include:
The FA spring-spring mechanism
3AP arc-assist interrupter
Rupture disks for each interrupter
Porcelain or composite bushings
Standard provision for up to four CTs
per bushing
Tanks meet ASME pressure requirements
Low installation costs
Compact construction
Dead-tank design allows accessibility
of all components at safe elevation
Virtually no maintenance.
All components are factory assembled and
tested with no required field adjustments.
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SPS2 15 kV – 72.5 kV
circuit breaker
The SPS2 product line begins with the 72.5
kV circuit breaker. The robust design and
40 kA rating make this unit a popular choice
for installation at all voltage levels from
15 kV up to 72.5 kV. Siemens sells more
72.5 kV circuit breakers than any other
manufacturer year-over-year because of the
incredible value we offer to our customers.
Standard features available:
Spring-spring operator
Up to 4 CTs per bushing
Operation to -40 °C without tank heaters
Gang operated and independent pole
operated versions available on common
frame.
The standard 72.5 kV has a compact design
and the same user-friendly controls layout
that our customers appreciate with every
unit they install.
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SPS2 15 kV - 72.5 kV
Ratings and specifications
Identification
Ratings
Voltage
Type
Nominal
kV class
Related capabilities
Insulation
Rated max
kV
Rated
voltage
range
factor (k)
Current values - amperes
Current
Rated withstand test
voltage
Low freq.
Impulse
(kV, rms) (kV, crest)
Rated
continuous
current (amps,
rms)
Rated short Interrupting
Maximum
circuit
time (cycles) symmeterical
current at
interrupting
rated (kA)
capability (kA)
3-sec short
time current
carrying
capability
(kA)
Closing and
latching
capability
(kA)
SPS2- 15.5-31.5
14.4
15.5
1.0
50
110
1200-3500
31.5
3
31.5
31.5
85
SPS2- 15.5-40
14.4
15.5
1.0
50
110
1200-3500
40
3
40
40
108
SPS2- 25.8-20
23.0
25.8
1.0
60
150
1200-3500
20
3
20
20
54
SPS2- 25.8-31.5
23.0
25.8
1.0
60
150
1200-3500
31.5
3
31.5
31.5
85
SPS2- 25.8-40
23.0
25.8
1.0
60
150
1200-3500
40
3
40
40
108
SPS2- 38-20
34.5
38
1.0
80
200
1200-3500
20
3
20
20
54
SPS2- 38-31.5
34.5
38
1.0
80
200
1200-3500
31.5
3
31.5
31.5
85
108
SPS2- 38-40
34.5
38
1.0
80
200
1200-3500
40
3
40
40
SPS2- 48.3-20
46.0
48.3
1.0
105
250
1200-3500
20
3
20
20
54
SPS2- 48.3-31.5
46.0
48.3
1.0
105
250
1200-3500
31.5
3
31.5
31.5
85
SPS2- 48.3-40
46.0
48.3
1.0
105
250
1200-3500
40
3
40
40
108
SPS2- 72.5-20
69.0
72.5
1.0
160
350
1200-3500
20
3
20
20
54
SPS2- 72.5-31.5
69.0
72.5
1.0
160
350
1200-3500
31.5
3
31.5
31.5
85
SPS2- 72.5-40
69.0
72.5
1.0
160
350
1200-3500
40
3
40
40
108
Supplementary specifications voltage
Description
Lightning
impluse
withstand
voltage (BIL)
Unit
kV
SPS2
15.5
110
SPS2
25.8
Supplementary specifications
SPS2
38
150
SPS2
48.3
200
SPS2
72.5
250
350
Normal operating temperature range
Standard
°C
-40 to 55
Special
°C
-50 to 55
ms
100
Closing time
Rated reclosing time
Chopped wave
kV
(2 µsec)
Normal
frequency
Hz
Optional
frequency
Hz
Motor voltage
(universal)
142
194
258
322
452
60
60
60
60
60
50
50
50
50
50
Vdc
48/125/250
48/125/250
48/125/250
48/125/250
48/125/250
Vac
120/240
120/240
120/240
120/240
120/240
Auxiliary
voltage
Vac
120/240
120/240
120/240
120/240
120/240
Trip and close
coil rating
Vdc
48/125/250
48/125/250
48/125/250
48/125/250
48/125/250
cycles
Rated duty cycle
External creep
Standard
in
73
Special
in
114
External strike to ground
Standard
in
23
Special
in
35.5
Phase spacing
37.4
SF6
lbs
33
SF6 pressure
psig
65 @ 68 °F/20 °C
Trip coils
Supplementary specifications current
Description
Unit
kA
20
31.5
40
Rated making current
kA
20
31.5
40
RMS
kA
32
50
64
Peak
kA
54
85
108
2
Breaks per phase
1
Seismic withstand
IEEE 693
Rated voltage range factor
Rated short circuit
current
12
OCO-15S-CO (No derating)
k
1
Closing and latching
capability
Capacitance switching
Class C2
Rated overhead line
current
A, rms
100
Rated isolated
capacitor bank
A, rms
630
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SPS2 123 kV 170 kV circuit
breaker
The next member of the SPS2 product
family includes the 145 kV circuit breaker.
With 40, 50, and 63 kA designs available,
none of the 145 kV units require capacitors
to achieve their kA requirement. This offers
a true long-term value by eliminating both
the initial additional cost and the potential
maintenance expense for replacement of
failed capacitors.
Features:
No capacitors needed for 40, 50, or 63 kA
Spring-spring operator.
Customers who added the Siemens 145 kV
units to their network benefited from:
Reduced costs through our worry-free
spring-spring operator
Dependable arc-assist interrupters
Independence from troublesome
capacitors.
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SPS2 123 kV - 170 kV
Ratings and specifications
Identification
Ratings
Voltage
Type
Nominal
kV class
Rated
max kV
Related capabilities
Insulation
Rated
voltage
range
factor (k)
Current
Rated withstand test
voltage
Low freq.
Impulse
(kV, rms) (kV, crest)
Rated
continuous
current (amps,
rms)
Current values - amperes
Interrupting
Rated short
Maximum
Closing and
3-sec short time
circuit
latching
time (cycles) symmeterical
current carrying
current at
interrupting
capability
capability (kA)
rated (kA)
capability (kA)
(kA)
SPS2-123-20
115
123
1.0
260
550
1200-4000
20
3
20
20
SPS2-123-31.5
115
123
1.0
260
550
1200-4000
31.5
3
31.5
31.5
54
85
SPS2-123-40
115
123
1.0
260
550
1200-4000
40
3
40
40
108
SPS2-123-50
115
123
1.0
260
550
1200-4000
50
3
50
50
135
SPS2-123-63
115
123
1.0
260
550
1200-4000
63
3
63
63
170
54
SPS2-145-20
138
145
1.0
310
650
1200-4000
20
3
20
20
SPS2-145-31.5
138
145
1.0
310
650
1200-4000
31.5
3
31.5
31.5
85
SPS2-145-40
138
145
1.0
310
650
1200-4000
40
3
40
40
108
SPS2-145-50
138
145
1.0
310
650
1200-4000
50
3
50
50
135
SPS2-145-63
138
145
1.0
310
650
1200-4000
63
3
63
63
170
54
SPS2-170-20
161
170
1.0
365
750
1200-4000
20
3
20
20
SPS2-170-31.5
161
170
1.0
365
750
1200-4000
31.5
3
31.5
31.5
85
SPS2-170-40
161
170
1.0
365
750
1200-4000
40
3
40
40
108
SPS2-170-50
161
170
1.0
365
750
1200-4000
50
3
50
50
135
SPS2-170-63
161
170
1.0
365
750
1200-4000
63
3
63
63
170
Supplementary specifications voltage
Description
Unit
Supplementary specifications
SPS2 123
SPS2 145
SPS2 170
Lightning impluse withstand
voltage (BIL)
kV
550
650
750
Chopped wave (2 µsec)
kV
710
838
968
Normal frequency
Hz
60
60
60
Optional frequency
Hz
50
50
50
Vdc
48/125/250
48/125/250
48/125/250
Vac
120/240
120/240
120/240
Auxiliary voltage
Vac
120/240
120/240
120/240
Trip and close coil rating
Vdc
48/125/250
48/125/250
48/125/250
Motor voltage (universal)
Supplementary specifications current
Description
Unit
Normal operating temperature range
Standard
Special
Closing time
Rated reclosing time
kA
20
31.5
40
50
63
Rated making current
kA
20
31.5
40
50
63
°C
-40/-50 to 55
ms
100
cycles
Rated duty cycle
RMS
kA
32
50
64
80
101
Peak
kA
54
85
108
135
170
External creep
Standard
in
131
Special
in
144
External strike to ground
Standard
in
46
Special
in
53
53
70.1
71.3
SF6
lbs
SF6 pressure
psig
46
58
82
87 @ 68 °F/20 °C
2
Breaks per phase
1
Seismic withstand
IEEE 693
Rated voltage range factor
Capacitance switching
12
OCO-15S-CO (No derating)
Trip coils
Closing and latching
capability
145 kV/63 kA
-30 to 55
Phase spacing
Rated short circuit
current
145 kV/40 kA
°C
k
1
Class C2
Rated overhead line
current
A, rms
160
Rated isolated
capacitor bank
A, rms
400
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SPS2 245 kV
circuit breaker
The SPS2 245 kV circuit breaker unit is a
perfect product solution for high altitude
applications. This breaker has BIL bushings
specifically designed for higher altitude
considerations.
The 245 kV offers all the same features
of the other ratings including the reliable
spring-spring operating mechanism.
Additionally, it also has 900 or 1050 BIL
configurations and SF6 monitoring available
in the common or isolated gas systems and
is available in two- and three-cycle options.
With the 245 kV, customers have the
option of using our synchronous design
for capacitor or reactor applications.
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SPS2 245 kV
Ratings and specifications
Identification
Ratings
Voltage
Type
Nominal
kV class
Rated
max kV
Related capabilities
Insulation
Rated
voltage
range
factor (k)
Current values - amperes
Current
Rated withstand test
voltage
Low freq.
Impulse
(kV, rms) (kV, crest)
Rated
continuous
current (amps,
rms)
Maximum
3-sec short
Rated short Interrupting
symmeterical time current
circuit
time (cycles)
interrupting
carrying
current at
capability
capability
rated (kA)
(kA)
(kA)
Closing and
latching
capability
(kA)
SPS2-245-20
230
245
1.0
425/460
900/1050
1200-4000
20
2/3
20
20
54
SPS2-245-31.5
230
245
1.0
425/460
900/1050
1200-4000
31.5
2/3
31.5
31.5
85
SPS2-245-40
230
245
1.0
425/460
900/1050
1200-4000
40
2/3
40
40
108
SPS2-245-50
230
245
1.0
425/460
900/1050
1200-4000
50
2/3
50
50
135
SPS2-245-63
230
245
1.0
425/460
900/1050
1200-4000
63
2/3
63
63
170
Supplementary specifications voltage
Supplementary specifications
Description
Unit
SPS2 245
Lightning impluse withstand
voltage (BIL)
kV
900/1050
Normal operating temperature range
Standard
°C
-30 to 55
Special
°C
-40/-50 to 55
ms
100
Chopped wave (2 µsec)
kV
1160
Normal frequency
Hz
60
Rated reclosing time
Optional frequency
Hz
50
Rated duty cycle
Closing time
cycles
12
OCO-15S-CO (No derating)
Vdc
48/125/250
Vac
120/240
Standard
in
215
Auxiliary voltage
Vac
120/240
Special
in
241
Trip and close coil rating
Vdc
48/125/250
Standard
in
62
Special
in
Motor voltage (universal)
External creep
External strike to ground
Supplementary specifications current
Description
Rated short circuit
current
Rated making current
Unit
kA
kA
Phase spacing
20
20
31.5
31.5
40
40
50
50
63
SF6
lbs
162
63
SF6 pressure
psig
87 @ 68 °F/20 °C
Closing and latching
capability
Trip coils
RMS
kA
32
50
64
80
101
Peak
kA
54
85
108
135
170
2
Breaks per phase
1
Seismic withstand
IEEE 693
Rated voltage range factor
Capacitance switching
84
85.3
k
1
Class C2
Rated overhead line
current
A, rms
125
Rated isolated
capacitor bank
A, rms
400
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SPS2 362 kV
circuit breaker
As with all Siemens dead-tank, live-tank
and gas-insulated switchgear breakers,
the SPS2 362 kV uses the same proven
3AP arc-assist interrupter and FA
spring-spring drive mechanism. The FA
spring-spring operator is designed to be
maintenance-free, is rated at twocycle interruptions, and provides the most
reliable closing and re-closing available in
the market. Additionally, the SPS2 362 kV
is a SF6 gas-insulated dead-tank breaker
offering fast and reliable operations at extra
high-voltage transmission levels, and can
be configured in an independent pole or
zero-crossing application.
The SPS2 362 kV offers the following
advantages:
63 kA without line-to-ground capacitors
4000 A full load current
5000 A option available.
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SPS2 362 kV
Ratings and specifications
Identification
Ratings
Voltage
Type
Nominal
kV class
Rated
max kV
Related capabilities
Insulation
Rated
voltage
range
factor (k)
Current values - amperes
Current
Rated withstand test
voltage
Low freq.
Impulse
(kV, rms) (kV, crest)
Rated
continuous
current (amps,
rms)
Maximum
3-sec short
Rated short Interrupting
Closing and
symmeterical time current
circuit
latching
time (cycles)
interrupting
carrying
current at
capability
capability
capability
rated (kA)
(kA)
(kA)
(kA)
SPS2-362-20
345
362
1.0
555
1300
1200-5000
20
2
20
20
54
SPS2-362-31.5
345
362
1.0
555
1300
1200-5000
31.5
2
31.5
31.5
85
SPS2-362-40
345
362
1.0
555
1300
1200-5000
40
2
40
40
108
SPS2-362-50
345
362
1.0
555
1300
1200-5000
50
2
50
50
135
SPS2-362-63
345
362
1.0
555
1300
1200-5000
63
2
63
63
170
Supplementary specifications
Supplementary specifications voltage
SPS2 362
Normal operating temperature range
Description
Unit
Lightning impluse withstand
voltage (BIL)
kV
1300
Chopped wave (2 µsec)
kV
1680
Normal frequency
Hz
60
Rated reclosing time
Optional frequency
Hz
50
Rated duty cycle
Standard
°C
-30 to 55
Special
°C
-40/-50 to 55
ms
65
Closing time
cycles
12
OCO-15S-CO (No derating)
Vdc
48/125/250
Vac
120/240
Standard
in
356
Auxiliary voltage
Vac
120/240
Special
in
442
Trip and close coil rating
Vdc
48/125/250
Standard
in
103
Special
in
Motor voltage (universal)
External creep
External strike to ground
Supplementary specifications current
Description
Unit
Phase spacing
Rated short circuit
current
kA
20
31.5
40
50
63
Rated making current
kA
20
31.5
40
50
63
SF6
lbs
385
SF6 pressure
psig
87 @ 68 °F/20 °C
Trip coils
Closing and latching
capability
RMS
kA
32
50
64
80
101
Peak
kA
54
85
108
135
170
Class C2
2 per phase
Breaks per phase
1
Seismic withstand
IEEE 693
Rated voltage range factor
Capacitance switching
120
See 1)
k
1
1) Design is customizable to meet certain customer requirements
Rated overhead line
current
A, rms
315
Rated isolated
capacitor bank
A, rms
1200
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SPS2 550 kV
circuit breaker
The SPS2 550 kV circuit breaker provides
reliable operation for utility applications
at extra high-voltage transmission levels
featuring arc-assist interrupters for fast,
efficient interruption with two breaks per
phase. Both contacts are driven by common
mechanical linkage FA5 spring operating
mechanism with high speed closing and
reclosing.
This breaker is designed for zero-crossing
switching and protective duties at 550 kV
maximum-rated voltages, 2000, 3000,
4000 and 5500 amperes continuous current
and 40, 50 or 63 kA maximum symmetrical
interrupting capability.
Shipped with CTs and CT cover installed
High seismic withstand
Breaker poles can be isolated and opened
individually
Light-weight design and low-reaction
forces reduce foundation requirements
and reduce construction space and costs
High-performance interrupter rated 63 kA
without external line-to-ground capacitors
reduces application engineering concerns
Available plug-and-play control wiring can
reduce installation cost and time.
14
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SPS2 550 kV
Ratings and specifications
Identification
Ratings
Voltage
Type
Nominal
kV class
Rated
max kV
Related capabilities
Insulation
Rated withstand test
voltage
Low freq.
Impulse
(kV, rms) (kV, crest)
Rated
voltage
range
factor (k)
Current values - amperes
Current
Rated
continuous
current (amps,
rms)
Maximum
3-sec short
Rated short Interrupting
Closing and
symmeterical time current
circuit
latching
time (cycles)
interrupting
carrying
current at
capability
capability
capability
rated (kA)
(kA)
(kA)
(kA)
SPS2-550-20
500
550
1.0
860
1800
1200-5000
20
2
20
20
54
SPS2-550-31.5
500
550
1.0
860
1800
1200-5000
31.5
2
31.5
31.5
85
SPS2-550-40
500
550
1.0
860
1800
1200-5000
40
2
40
40
108
SPS2-550-50
500
550
1.0
860
1800
1200-5000
50
2
50
50
135
SPS2-550-63
500
550
1.0
860
1800
1200-5000
63
2
63
63
170
Supplementary specifications
Supplementary specifications voltage
Normal operating temperature range
Description
Unit
Lightning impluse withstand
voltage (BIL)
kV
SPS2 550
1800
Chopped wave (2 µsec)
kV
2320
Normal frequency
Hz
60
Rated reclosing time
Optional frequency
Hz
50
Rated duty cycle
Vdc
48/125/250
Vac
120/240
Auxiliary voltage
Vac
120/240
Trip and close coil rating
Vdc
48/125/250
Motor voltage (universal)
Standard
°C
-30 to 55
Special
°C
NA
ms
65
Closing time
cycles
12
OCO-15S-CO (No derating)
External creep
Standard
in
Standard
in
Phase spacing
Supplementary specifications current
Description
Unit
Rated short circuit
current
kA
Rated making current
kA
20
31.5
40
50
63
RMS
kA
32
50
64
80
101
Peak
kA
54
85
108
135
170
20
31.5
40
50
595
External strike to ground
63
Closing and latching
capability
176
See 1)
SF6
lbs
1610
SF6 pressure
psig
81 @ 68 °F/20 °C
Trip coils
2 per phase
Breaks per phase
2
Seismic withstand
IEEE 693
Rated voltage range factor
k
1
1) Design is customizable to meet certain customer requirements
Capacitance switching
Class C2
Rated overhead line
current
A, rms
500
Rated isolated
capacitor bank
A, rms
500
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Common
components
The strength of the SPS2 family is the commonality of components across the portfolio.
Only the physical profile changes in size of
the interrupter and operating mechanism
for 15 kV to 550 kV applications. The control
cabinet design is similar across the complete
SPS2 range. This ensures that regardless of
the kV class of the breaker, you can expect
similar components and layout. This reduces
training, spare holdings and eliminates the
possibility of errors. Furthermore, adapter
plates are offered to match other existing
foundations in order to save considerable
time and money in the development of new
foundations.
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Dead-tank circuit breakers
Type
Rated power-frequency
withstand voltage
1
2
3
4
SPS2
Electrical data
Rated voltage
Arc-assist interrupter
3-cycle
2-3 -cycle
2-cycle
kV
38
48.3
72.5
123
145
170
245
362
550
kV
80
105
160
260
310
365
425/460
555
860
Rated lightning
impulse withstand
kV
200
250
350
550
650
750
900/1050
1300
1800
A
4000
4000
4000
4000
4000
4000
4000
4000/5000
5000
kA
40
40
40
63
63
63
63
63
63
voltage
Rated nominal current
up to
Rated braking current
up to
Dead-tank special features
Arc-assist interrupter
The distinguishing feature of dead-tank
technology is that the interrupter chamber
is in a grounded metal housing. With this
arrangement, the SF6 gas insulates the
high-voltage live parts of the contact
assembly from the housing.
The SPS2 circuit breaker includes the
field-proven 3AP arc-assist interrupter. Each
interrupter consists of a main contact assembly and an arcing contact assembly mounted
inside a pole unit housing. During the
opening operation, the puffer action in the
compression cylinder of the 3AP interrupter
is sufficient for low current faults and switching operations. During high current interruptions, heat from the arc causes the pressure
to rise in the heating volume chamber. The
resulting high pressure gas from the heating
volume extinguishes the arc. This arc-assist
technology, coupled with our true springspring operating mechanism, assures that
the components are subjected to less stress
which results in optimal operating reliability.
The high-voltage connection is through
a NEMA terminal plate and conductor rod
assembly that is housed in a hollow SF6-filled
porcelain or composite bushing. Current
transformers are mounted directly on the
bushing.
Dead-tank circuit breakers offer particular
advantages if the protection design requires
the use of several current transformers per
pole assembly. The ability to arrange current
transformers on each side of the pole
assembly enables protection schemes to
be met in a particularly cost-saving manner.
Furthermore, it is relatively simple to
retrofit current transformers in the field.
As an additional advantage, dead-tank
circuit breakers are particularly resistant to
earthquakes due to their compact design
and low center of gravity.
Key:
1. Aluminum housing
2. Stationary contact support
3. Nozzle
4. Main contact
5. Arcing contact
6. Heating volume
7. Moving contact support base
8. Compression cylinder.
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Common
components
Spring-spring operating mechanism
Siemens has more than 100,000 installations
worldwide, which is testament to the
reliability of the spring-spring FA mechanism.
This mechanism is fully equipped with a
closing and opening spring fit within a
common housing. The operating mechanism
incorporates sealed roller bearings that allow
wear-free transitions of forces to ensure a
long service life. The charging gear, with its
long-wearing spur wheels and its principle
of no-load decoupling, is another component
that is designed for no maintenance. Low
operating mechanism force assures that
the transition elements are subjected to
less stress, thus resulting in optimal
operating reliability.
Control power requirements
Rated voltage
FA5 mechanism
48 VDC
125 VDC
250 VDC
115 VAC
230 VAC
Trip coil current (amps)
16
10
5.2
12.0
6.7
Close coil current (amps)
4.6
2.5
1.2
2.5
6.7
Motor run current (amps)
29
23
8
41
11
Spring-charged operating mechanism
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3D wiring
In our efforts to provide our customers
quality products, Siemens continuously
invests in equipment to make the manufacturing process precise, efficient and
consistent. Siemens’ specialized engineering
department utilizes 3D technology for the
design layout of the control wiring components for all circuit breakers. This lets designers create precise breaker cabinets and components with the assurance that there will be
no interference issues.
Siemens 3D wiring ensures wires are cut to
the exact length needed and design engineers dictate the routing of wires creating
an efficient and clean end product. This
also allows Siemens to facilitate an errorfree environment by providing a valuable
“from-to” wiring list and destinations printed
directly on the wires. Utilization of this 3D
technology improves reliability and consistency, which is evident in the uniform crimping of all lugs, providing a more secure and
reliable connection.
When you buy a Siemens circuit breaker
you are not just buying a canned product,
you are buying a circuit breaker that was
custom designed for your needs by a
dedicated engineering team, using the
latest and most advanced technology
available.
This 3D wiring technology provides:
A clean cabinet area free of excess or
interfering wiring
Useful “from-to” wire list and markings
A consistent uniform crimping of all lugs.
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Independent pole
operation (IPO)
Independent pole operation controllers
(IPO)
To ensure product performance and
customer satisfaction, the individual pole
operation controllers are tested to ANSI and
IEC standards in one of the world’s largest
high-voltage laboratories.
Advantages of the IPO approach
Increased system reliability as a result of
reduced voltage fluctuations and lower
harmonic stress
Longer service life of the equipment by
reducing the switching over-voltages and
inrush currents
In conjunction with the Phase synchronizing device (PSD) control unit, IPO controlled
switching allows for an individual optimum
switching instant to be set for each pole.
The transients are thereby reduced to a
minimum. For circuit breakers with three
independent drives, each pole receives an
individual switching command from the
PSD control unit.
Elimination of costly, complex mechanical
auxiliary equipment, such as pre-insertion
resistors.
This approach is also gaining acceptance
for re-engineering of extra high-voltage
transmission lines and replacing traditional
pre-insertion resistors. For many years these
controllers have been delivered all over the
world. Siemens dead-tank circuit breakers
are particularly well suited for controlled
switching due to their superior stability in
regard to mechanical operating time and
dynamic dielectric behavior, which is a result
of its true spring-spring operator design. This
design is the standard for all Siemens circuit
breakers.
IPO Rating
Type
Rated voltage
IPO
kV
72.5
123
145/170
245
362
550
Interrupting time
cycle
3
3
3
2 or 3
2
2
Power frequency
kV
160
230
275
460
550
860
kV
350
550
750
900/1050
1300
1800
900
1350
Lightning impulse withstand
voltage
Switching impulse withstand
voltage > 300 kV
kV
Rated current
A
Rated short circuit
kA
1200/3500
1200/4000
1200/4000
1200/4000
4000/5000
5000
40/50/63
40/50/63
40/50/63
40/50/63/80
63
63
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Our PSD control unit optimizes the phase
relative to the current or voltage of the
switching operation of the circuit breaker.
Controlled switching takes the opening
and closing times of the circuit breaker into
account. Commands from the protection system are passed directly to the circuit breaker.
Closing occurs at an optimal phase position.
The phase position is selected based on the
actual switching duty so that transients can
be avoided. When opening small inductive
currents, the voltage cycle of the contact
separation is such that the contact clearance
during interruption is sufficient to prevent
re-strike or re-ignition.
This unit offers the following advantages:
Software for parameterization and
evaluation
Phase synchronizing device (PSD)
controlled switching
When switching capacitive and inductive
loads, transients occur, resulting in electrodynamic and dielectric stresses on systems.
These stresses can be minimized by the
introduction of controlled switching, which
can be provided by the Siemens PSD control
unit. This unit can significantly reduce wear
and tear on the equipment.
Password protected function access
Switching history
Event history
400 events saved documentation
Graphical overview
Limit value monitoring
Adaptive control (optional)
Compensation of operating times
(linear or vectorial) including:
temperature, voltage, and pressure
Two modes of operation with two sets of
parameters (ON/OFF)
Last four operations saved as oscillogram
Selection of trigger source (leading phase)
Increased system reliability as a result of
reduced voltage fluctuations and lower
harmonic stress
Longer service life of equipment
Elimination of costly, complex mechanical
auxiliary equipment, such as closing
resistors.
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SPS2
specifications
Longer operating life for lower
maintenance costs
When considering any circuit breaker, today’s
utilities must be concerned not only with
initial price and installation, but also with the
ongoing costs of ownership. The Siemens
SPS2 family of breakers competes in every
category. Its low price tag, simple installation
and easy maintenance will continue to pay
dividends decades into the future.
In addition to reliable performance,
our breakers offer a number of special
requirements, such as:
Switching capacitors, cables and reactors
Reclosing duty without de-rating
interrupting capability
High contamination zones.
Getting the best breaker for your needs
When ordering a SPS2 breaker, specify the
following:
1. Breaker type and rating
2. Trip voltage (see ratings section)
3. Close voltage (see ratings section)
4. Motor voltage: 120 VAC, 125 VDC,
240 VAC / 250 VDC and 48 VDC
5. Heater voltage: 115 and 230 VAC
6. BCTs: type, ratio, number, and location
7. Terminals: specify in detail if desired
8. Specifications covering special
equipment, accessories, test, etc.
9. SF6 included or not included
10. Phase spacing and electrical control
(IPO and live-tank only)
11. Control cables included in cabinet
location (IPO and live-tank only).
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SPS2
specification
Basic breaker
The standard basic breaker includes:
13. Composite bushings
1. Three-pole SF6 filled outdoor power
circuit breaker
14. Phase synchronizing device (PSD)
2. Galvanized frame
16. High seismic design
3. Light gray standard color – ANSI 70
17. High-creep and high-altitude bushing
4. Six light gray SF6 filled bushings that
meet or exceed all application ANSI
and NEMA design specifications
18. Suitable down to -40 °C ambient
(tank heaters required for operation
below -30 °C)
5. Relaying accuracy bushing current
transformers
19. Circuit breaker condition monitor
6. Trip-free spring operating mechanism
7. Three-stage temperature-compensated
SF6 density monitor with integral
pressure gauge
8. Twelve-stage auxiliary switch; eight
stages for customer use
15. Plug-and-play connectors
20. Exceed ANSI standards
21. ASME pressure vessel certification
for unfired pressure vessels
22. ASME code/test helium leak test system
23. Three-tank construction.
9. Trip coil and close coil
10. Cabinet heater to prevent condensation
11. Terminal blocks and wiring
12. Operations counter
13. Fused-knife switches
14. Grounding pads
15. Mechanical position indicator
16. Provision for travel recorder attachment
17. Installation tools.
Optional modifications include:
1. Extra BCTs
2. Metering accuracy BCTs
3. Extra creepage bushings
4. Capacitor trip
5. Relays for reclosing or non-reclosing
breaker application
6. External pull-to-trip handle
7. Cabinet light and convenience outlet
8. Additional auxiliary switches
9. Dual trip coils
10. Control switch
11. Local and remote switch
1 ratio
MR =
Multiple ratio
SR =
Single ratio
DR =
Dual ratio
2 accuracy
C=
Relay
accuracy
B=
Meter
accuracy
3 typical
ratios
Special ratios
available
upon request
12. Thermostat for cabinet heater
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Live-tank option
For live-tank circuit breakers, the interrupter
chamber is arranged in the insulator, which
can be either porcelain or composite material. This insulator is at high potential with
the voltage level determining the length of
the insulators for the interrupter chamber
and the insulator column. For higher
voltage levels, several interrupter chambers
are series-connected on live-tank circuit
breakers and installed on the insulator
column.
The current transformers are arranged
separately, either in front of, or behind
the live-tank circuit breakers. With live-tank
circuit breakers, no fault currents can occur
between the interrupter unit and the housing, and only one current transformer per
pole assembly is necessary. Features of
our live-tank circuit breakers are the
comparatively small gas compartments.
The advantage of low gas volume is the
reduction in the amount of gas maintenance
work. For safe operation of live-tank circuit
breakers in seismic regions, the breakers can
be mounted on anti-friction structures, a
solution that has been tested up to 800 kV.
Type
3AP1
3AP2
Electrical data
3-cycle
2-cycle
3AT2/3
2-cycle
Rated voltage
kV
72.5
123
145
170
245/300
550
145
245
362
550
Rated powerfrequency withstand
voltage
kV
160
280
310
365
480
860
310
460
555
860
Rated lighting
impulse withstand
voltage
kV
325
550
650
750
1050
1800
650
1050
1300
1800
Rated nominal
current up to
A
4000
4000
4000
4000
4000
5000
4000
4000
4000
4000
Rated breaking
current up to
kA
40
40
40
40
40
63
63
63
63
63
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Shipment and
installation
All breakers are shipped from our facility in
Jackson, Mississippi. Our customer satisfaction team will respond within 24 hours of all
maintenance or spare parts requests, and our
24 hour emergency number (877-742-3309)
is available for around the clock support. We
hold in stock all major components, in excess
of production needs, to provide the fastest
turnaround. Additionally, our dedicated,
globally-supported research and development team is available to answer any special
needs.
Providing installation and commissioning
on request, we are available 24 hours a day,
worldwide, for:
Installation
Commissioning checks
Diagnostics
Spare parts
Failure detection and repair.
Turnkey solutions
Siemens offers turnkey power transmission
solutions tailored to individual requirements.
We supply all components, including power
plant AC or DC transmission systems, and
high-voltage interconnected power systems
with high-, medium- and low–voltage. We
provide a single point of contact, responsible
for coordinating the entire project. Turnkey
projects reduce the operator’s share in
project risks, since Siemens is responsible
for delivering a system that is ready for
operation.
Disclaimer
All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable.
The accuracy or completeness hereof is not guaranteed. Since conditions of use are outside our control, the user should determine the
suitability of the product for its intended use and assumes all risk and liability whatsoever in connection herewith.
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All rights reserved.
Trademarks mentioned in this document
are the property of Siemens AG, its
affiliates, or their respective owners.
Subject to change without prior notice.
The information in this document
contains general descriptions of the
technical options available, which may
not apply in all cases. The required
technical options should therefore
be specified in the contract.
Published by and copyright © 2012:
Siemens AG
Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens Energy, Inc.
444 Highway 49 South
Richland, MS 39218
+1 (800) 347-6659
usa.siemens.com/energy
For more information, please contact:
Telephone: +1 (919) 365-2200
Toll-free: +1 (800) 347-6659
Order No. E50001-W630-A218-X-76US
Printed in USA
TF 3001 BR 1112.25