Siemens SION User manual

SION®
Vacuum circuit-breaker
7.2 kV – 17.5 kV, 16 kA – 31.5 kA
24 kV, 16 kA – 25 kA
OPERATING INSTRUCTIONS
Order No.: 9229 0025 176 0-
Version: 12.2017 en
© Siemens AG 2017. All rights reserved.

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For your safety
Signal terms and
definitions
Hazards are classified in accordance with ISO 3864-2 using the following keywords:
• DANGER, WARNING, or CAUTION, where there is a risk of personal injury
• NOTE, where there is a risk of material damage.
Hazards are classified and indicated in the operating instructions and on the vacuum
circuit-breaker as follows:
Qualified personnel For the purpose of these operating instructions or the warning notices on the vacu-
um circuit-breaker, qualified personnel are persons who are familiar with the trans-
port, storage, set-up, mounting, commissioning, operation and maintenance of the
product and who have qualifications relevant to their work, e. g.:
• Training and instruction, or authorisation to energise, de-energise, clear, earth
and tag circuits and equipment in accordance with established safety practices.
• Training or instruction in the proper care and use of protective equipment in
accordance with established safety practices.
• Training in first aid.
Product liability
DANGER
Indicates an imminently hazardous situation.
If the hazard is not avoided, it will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation.
If the hazardous situation is not avoided, it could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation.
If the hazardous situation is not avoided, it could result in minor or moderate
injury.
Note
Indicates a potentially harmful situation.
If the harmful situation is not avoided, the product or an item in its vicinity can
sustain damage.
Note
Product liability claims are upheld only if the replacement of the purchased spare
parts is performed by personnel that have been trained and certified by Sie-
mens.

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Contents
For your safety ................................................................................................................................................... 2
List of abbreviations ............................................................................................................................................ 4
Transport, storage and packing .................................................................................................................. 5
Transport ............................................................................................................................................................. 5
Unpacking ........................................................................................................................................................... 6
Reuse of transport unit ........................................................................................................................................ 9
Storage ............................................................................................................................................................... 9
General information ....................................................................................................................................... 11
Areas of application .......................................................................................................................................... 11
Standards .......................................................................................................................................................... 12
Type approval as per the German X-Ray Ordinance ........................................................................................ 12
Scope of delivery .............................................................................................................................................. 12
Description ........................................................................................................................................................ 13
Design ............................................................................................................................................................... 13
Interlocks ........................................................................................................................................................... 27
Rating plate ....................................................................................................................................................... 30
Technical data ................................................................................................................................................... 30
Ambient conditions ............................................................................................................................................ 31
Installation altitudes .......................................................................................................................................... 31
Operating times ................................................................................................................................................. 32
Circuit diagrams ................................................................................................................................................ 33
Mounting ............................................................................................................................................................. 35
Fixing in the switching cubicle ........................................................................................................................... 36
Earthing ............................................................................................................................................................. 45
Connecting the low voltage ............................................................................................................................... 46
Electrical connection of the main conductors .................................................................................................... 49
Inserting the vacuum circuit-breaker SION®with withdrawable part ................................................................ 54
Operation ............................................................................................................................................................ 57
Commissioning ................................................................................................................................................. 57
First closing operation ....................................................................................................................................... 58
Closing .............................................................................................................................................................. 60
Opening ............................................................................................................................................................ 60
Maintenance ...................................................................................................................................................... 61
Maintenance and servicing ............................................................................................................................... 61
Service life of the vacuum interrupters .............................................................................................................. 62
Accessories and spare parts ............................................................................................................................. 62
Manufacturer's product liability .......................................................................................................................... 63
Disposal ............................................................................................................................................................ 63
Service .............................................................................................................................................................. 63
Index ..................................................................................................................................................................... 65
Central legend .................................................................................................................................................. 67

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List of abbreviations
CO Close-Open
DIN Deutsches Institut für Normung (German Institute for Standardisation)
IEC International Electrotechnical Commission
IP plate Internal arc protection plate
NC Normally closed contact
NO Normally open contact
O Open
VDE Verband Deutscher Elektrotechniker (Association of German Electrical Engineers)

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Transport, storage and packing
Transport
Transport weight Refer to the delivery documents for the weight of the transport unit.
Place the transport unit on a level, non-slip and pressure-Resistant surface for inter-
mediate storage.
Transport vacuum circuit-breaker to the mounting or storage location in its original
transport unit.
Transporting with crane or fork lift
WARNING
Heavy transport weight
Transport unit may fall and sling gear may break.
Use lifting gear, transport and sling gear suited to the requirements and load-car-
rying capacity. Observe transport symbols.
Note
Observe stacking height
For transport, no more than 3 identical transport units may be stacked on top of
each other.
Observe loads specified on the transport unit.
Note
Secure load
For transport, secure the load in such a way that the transport unit is not at risk.
Fig. 1 Transporting the pallet with carton

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Transporting with packag-
ing
Transport the transport unit to the mounting or storage location
• with a fork lift or
• with sling gear suspended from a crane
- at a spreading angle of approx. 60° or
- with a spreader bar.
After receipt of delivery:
Checking the transport
unit
• Check the transport unit for damage.
• Major damage must be documented photographically.
• Ensure that any damage to the transport unit is confirmed by the transport com-
pany in writing.
Unpacking
Working equipment Required tools:
- Knife/scissors
- Lifting equipment with lifting gear
- Pliers or lever.
CAUTION
Risk of injury from sharp edges!
Fasteners may break and have sharp edges.
Always use a suitable tool to lever out fasteners.
Note
Do not cut open or damage the carton, since it is designed to be reused and
because of the belt straps located underneath.
Belt straps could be severed on the pallet floor when cutting open the carton.
The vacuum circuit-breaker is fixed to the pallet with belt straps. It is not permitted
to transport the vacuum circuit-breaker on the pallet without using belt straps (see
Fig. 3 to Fig. 4).
Note
Risk of tipping over due to shift in centre of gravity!
Vacuum circuit-breakers with mounted contact arms may tip onto the contact sys-
tem if not fixed.
Before undoing the belt straps, ensure that the vacuum circuit-breaker is posi-
tioned safely and hook sling gear to the points marked with crane hooks (see
Fig. 5 to Fig. 7).

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Opening the transport unit • Place the transport unit on a level, non-slip and pressure-Resistant surface.
• Remove lifting gear or transport means.
• Remove plastic wrap.
• Lever out fasteners from the carton and lift off carton (see Fig. 1).
• Remove film from the vacuum circuit-breaker.
• In the case of overseas packaging, push the lower film onto the pallet floor.
• Check that the delivery is complete.
• Check vacuum circuit-breaker for damage.
Fig. 2 Removing the fixing from the carton
Note
Do not use the vacuum circuit-breaker in case of damage such as breaks, cracks,
flaking, bent metal parts, damaged plug-in contacts, tears or bare cables.
Send it back in its original transport unit (see “Reuse of transport unit”, page 9).
Fig. 3 Example - unpacking fixed mounting Fig. 4 Example - unpacking version with cartridge in-
sert

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Transport to the mounting
location
• Remove all tensioning belts and pieces of fastening wood.
• Remove accessory pack and store safely in the packaging for later mounting.
Note
Shifted centre of gravity!
If the vacuum circuit-breakers are lifted with contact arms mounted, the centre of
gravity will be towards the contact arms.
The unit is transported in an inclined position.
Fig. 5 Transporting by crane hook Fig. 6 Transporting by crane eyes
1) Diameter of the hook cross-section max. 19 mm
2) Opening width of the hook min. 18 mm
• Hang sling gear into the crane eyes only.
• Transport to mounting location or leave suspended
from crane for further work operations.
Note
Material damage due to incorrect fixing of sling gear!
The holders (49) will be damaged if ropes or similar sling
gear are fixed under the holders (49).
Only use the crane eyes for sling gear.
Fig. 7 Transporting, only 31.5 kA with distance be-
tween pole centres 150/160

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Reuse of transport unit
Reusing the transport unit The pallet and the carton as well as most of the components can be reused if the
vacuum circuit-breaker is to be transported again.
Do not reuse severed tensioning belts or plastic wraps.
Pack the vacuum circuit-breaker in reverse order:
• Fix the vacuum circuit-breaker safely to the pallet using the appropriate tools.
• Cover with film and seal with adhesive tape.
• Attach the accessory pack.
• Close the carton securely.
• Before returning to the factory, ask the responsible Siemens representative for a
returned goods number (see also “Service”, on page 63).
• When returning a vacuum circuit-breaker, always specify the type and serial
number (see “Rating plate”, on page 30).
Storage
Note
Keep accessory pack on hand for mounting.
Note
Store the vacuum circuit-breaker in the following condition:
• OPEN switch position
• Closing spring discharged
Note
Risk of corrosion damage if stored improperly!
If the storage conditions listed below are met, the vacuum circuit-breaker can be
stored for up to a year in its transport unit.
If the storage conditions are not met, the vacuum circuit-breaker cannot be stored
in the transport unit for longer than 6 months.
If storage for more than one year is planned, unpack the vacuum circuit-breaker
from the transport unit. Further storage may necessitate fresh corrosion protec-
tion, and it must be ensured that the vacuum circuit-breaker cannot be damaged.
Storage room Transport unit Storage
time
Temperature
range
Comment Number of
units per
stack
Enclosed, dry, well
ventilated, and as
free from dust as
possible, with a rela-
tive humidity of less
than 60 %.
Unopened Max.
6months -40°Cto+55°C — Max.4
Unopened Max.
1 year -5 °C to +40 °C — Max. 4
Open More than
1 year -5 °C to +40 °C
With new corro-
sion protection if
necessary
—

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Blank page

General information
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General information
Smooth and safe operation of this device requires proper transport, professional
storage, set-up and mounting, as well as careful operation and maintenance.
The basic version and all listed configurations of the vacuum circuit-breakers are
type-tested devices as per IEC.
Areas of application
Vacuum circuit-breakers SION®are 3-pole interior circuit-breakers for a rated volt-
age range of 7.2 kV - 24 kV.
Under normal operating conditions the vacuum circuit-breaker (as per IEC 62271-1
and VDE 0671-1) is maintenance-free up to 10 000 operating cycles.
30,000 operating cycles are connected with maintenance work that must be per-
formed only by personnel trained by Siemens (see also “Maintenance” on p. 61).
WARNING
Dangerous electrical voltage and mechanical movements
When electrical devices are operated, certain parts are inevitably live under
dangerous voltage, and mechanical parts may move very quickly, also
when remotely controlled.
If the warning notices are not observed, serious injury or material damage may
be the result.
Only personnel with the relevant qualifications may work on or in the vicinity of
this device. These personnel must be familiar with all warnings and servicing ac-
tivities specified in these operating instructions.
Note
In the event of subsequent attachments or fittings, e. g. locking parts in connec-
tion with switchgear, ensure that
• fast moving parts are not additionally loaded with masses or forces and
• additional parts have sufficient clearance, in particular from moving and live
parts.
If vacuum circuit-breakers are to be equipped with additional functions by the cus-
tomer, we recommend consulting the factory, since tried and tested solutions are
frequently available (see also “Additional equipment”, on page 18).
Note
The images shown are examples; not all the variants of the vacuum circuit-break-
er are shown here.

General information
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Intended use Vacuum circuit-breakers SION®are suitable for switching any type of alternating
current circuits under normal operating conditions, such as:
• Overhead lines
•Cables
• Transformers
• Capacitors
• Motors
Vacuum circuit-breakers SION®operate in continuous, periodic and short-term op-
eration.
Standards
The vacuum circuit-breakers SION®comply with the regulations:
• IEC 62271-1 and
• IEC 62271-100.
All vacuum circuit-breakers SION®comply with the specifications for C2, E2, M2
and S1-class circuit-breakers as per IEC 62271-100.
Country- and standard-specific deviations from the standards mentioned must be
observed.
Type approval as per the German X-Ray Ordinance
The vacuum interrupters installed in the switching devices are type-approved as
sources of interference radiation according to § 8 of the German X-Ray Ordinance
and they meet the requirements for sources of parasitic X-ray emitters according to
Annex 2 No. 5 of the current German X-Ray Ordinance up to the rated voltage de-
fined in the approval certificate.
Vacuum interrupters with the type identifier can be operated by the owner of the
switchgear without licensing or notification. Keep a printed copy of the certificate in
a suitable central location.
Scope of delivery
Delivery includes:
• Vacuum circuit-breaker SION®
• or vacuum circuit-breaker SION®on cartridge insert
• System-side separating shells (optional)
• Hand crank for circuit-breaker 3AX1530-4B (optional)
• Handle for cartridge insert 3AX1430-2C (optional)
• Accessory pack with fixing brackets and fixing materials (optional for fixed
mounting)
• Accessory pack for plug top with fixing material (optional)
- with 24-pole plug or
- with 64-pole plug
• Accessory pack with 10-pole plug and Faston crimp receptacle with insulating
sleeve (optional for 20-pole connector strip)
• IP plate (optional)
• Shaft cover (optional)
• Operating instructions and unpacking instructions
• Circuit-breaker-specific circuit diagrams

Description
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Description
Design
The images shown are examples; not all the variants of the vacuum circuit-breaker
are shown here.
Fig. 8 12 kV, operating side with separating shells
(towards system side)
Fig. 9 12 kV, pole side
Fig. 10 24 kV, operating side with separating shells
(towards system side)
Fig. 11 24 kV, pole side
20.1 Cover
21 Rating plate
32 Low-voltage plug connector (-X0),
(optional)
42 Pole head
43 Vacuum interrupter
44 Pole contact plate
45 Isolator
46 Pole shell
47 Separating shell to system side

Description
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Contact system in the vacuum interrupters
A slight change in the contact stroke that occurs over the entire useful life has no
effect on the function of the vacuum circuit-breaker.
Fig. 12 Operating mechanism side with separating
shells (towards operating mechanism side)
Fig. 13 Pole side
Fig. 14 Operating mechanism side with separating
shells (towards operating mechanism side)
and withdrawable part
10 Withdrawable part
20.1 Cover
21 Rating plate
32 Low-voltage plug connector (-X0),
(optional)
41 Separating shell to operating mechanism
side (optional)
42 Pole head
43 Vacuum interrupter
44 Pole contact plate
45 Isolator
46 Pole shell
47 Separating shell to system side

Description
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Operating mechanism
The operating mechanism contains all the electrical and mechanical components re-
quired to close or open the vacuum circuit-breaker. Isolators transfer the switching
movement to the pole assemblies.
The operating mechanism is covered by a removable cover (20.1).
Operating and indicator elements
There are openings in the cover (20.1) for the operating and indicator elements.
Functions The CLOSE pushbutton (56.1) is used to close the vacuum circuit-breaker. The mo-
tor immediately charges the closing spring. If the supply voltage for the motor fails,
the closing spring can be charged with a hand crank. There is an opening for this in
the cover (20.1), behind which you will find the hand crank coupling (57.2) of the
gear unit.
To prevent manual switch-on, some designs of the vacuum circuit-breaker can be
fitted with a key-operated interlock (59.3).
Indicators The charged state of the springs is indicated via the spring state indicator (55.1). The
position indicator (56.3) shows the CLOSED or OPEN state. The operations counter
(58) indicates the number of operating cycles. An operating cycle consists of one
closing and one opening.
Fig. 15 Control panel Fig. 16 Control panel
20.1 Cover
55.1 Spring state indicator
56.1 CLOSE pushbutton
56.2 OPEN pushbutton
56.3 Position indicator CLOSED-OPEN
57.2 Hand crank coupling
58 Operations counter
59.3 Key-operated interlock (optional)

Description
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Secondary equipment
Fig. 17 Open operating mechanism
31 Auxiliary switch (-S1)
32 Low-voltage plug connector (-X0), (optional)
33.1 Connector strip (-X1.2 and -X1.4), 20-pole
33.2 Plugs (-X01) and (-X02) for withdrawable part (optional)
33.3 Plug (-X1) only when ordering the 20-pole connector strip
34 Auxiliary contactor (-K1), shutdown (-Y9) and anti-pumping
device
51.1 First shunt release (-Y1)
51.2 2nd release (optional)
52 Closing solenoid (-Y9)
53 Motor (-M1), charging the closing spring
54.1 Position switch (-S12), prevents electrical closing in
mechanical interlock (not shown)
54.2 Position switch (-S21), motor control
54.3 Position switch (-S3), control for (-K1)
54.4 Position switch (-S4), message “Closing spring charged”
54.6 Position switch (-S6), circuit-breaker tripping signal
(optional, not shown)
55 Closing spring
55.1 Spring state indicator
56.3 Position indicator CLOSED-OPEN
57 Gear unit
57.2 Hand crank coupling
58 Operations counter
59.4 Heater (-R01), condensation water protection (optional)
59.6 Resistor (-R1) for undervoltage release (-Y7), (optional)

Description
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Fig. 18 Open operating mechanism
31 Auxiliary switch (-S1)
32 Low-voltage plug connector (-X0), (optional)
33.1 Connector strip (-X1.2 and -X1.4), 20-pole
33.2 Plugs (-X01) and (-X02) for withdrawable part (optional)
33.3 Plug (-X1) only when ordering the 20-pole connector strip
34 Auxiliary contactor (-K1), shutdown (-Y9) and anti-pumping
device
51.1 First shunt release (-Y1)
51.2 2nd release (optional)
51.3 3rd release (optional)
52 Closing solenoid (-Y9)
53 Motor (-M1), charging the closing spring
54.1 Position switch (-S12), prevents electrical closing in
mechanical interlock (not shown)
54.2 Position switch (-S21), motor control
54.3 Position switch (-S3), control for (-K1)
54.4 Position switch (-S4), message “Closing spring charged”
54.5 Position switch (-S5), electrical closing lock-out or key-
operated interlock (optional)
54.6 Position switch (-S6), circuit-breaker tripping signal
(optional, not shown)
55 Closing spring
55.1 Spring state indicator
56.3 Position indicator CLOSED-OPEN
57 Gear unit
57.2 Hand crank coupling
58 Operations counter
59.3 Key-operated interlock (optional)
59.4 Heater (-R01), condensation water protection (optional)
59.5 Electrical closing lock-out (-F1), (optional, not shown)
59.6 Resistor (-R1), in dependence on voltage 1 or 2 resistors,
for undervoltage release (-Y7), (optional)

Description
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Equipment
Basic equipment The basic equipment of the vacuum circuit-breaker SION®contains the following:
Additional equipment The vacuum circuit-breaker SION®(not for all designs) can also be fitted with the
following equipment:
In addition to the serial shunt release (Y1), the vacuum circuit-breaker can be
equipped with no more than one release of type 3AX11…. For the permitted possi-
ble combinations of the additional equipment as well as special designs, refer to cat-
alogue HG11 or contact the relevant Siemens representative.
Motor 3AY1411, for charging the closing spring (-M1)
Position switch 3AX4206-0A, for motor control (-S21)
Anti-pumping device
• electrical 3AY1420 (-K1)
• mechanical
Position switch 3AX4206-0A, control of the anti-pumping device
(-K1)
(-S3)
Closing solenoid 3AX1410 (-Y9)
Shunt release 3AX1410 (-Y1)
Auxiliary switch optional (-S1)
• 6NO + 6NC (3SV9273)
• 12NO + 12NC (3SV9274)
Position switch 3AX4206-0A, for signal “Closing spring charged” (-S4)
Low-voltage interface 3AX1134 optional (-X0)
• Plug connector with sleeve housing 64-pole
• Plug connector with sleeve housing 24-pole
• Connector strip 20-pole (-X1.1 to -X1.4)
• Plug, Faston flat connector (only with 20-pole connector strip) (-X1)
Operations counter
Mechanical manual closing and opening
Shunt release 3AX1101 (-Y2)
Current transformer (c.t.) operated release 3AX1102 (-Y4, -Y5)
C.t.-operated release 3AX1104 (0.1 Ws) (-Y6)
Undervoltage release 3AX1103 (-Y7)
• with resistor for undervoltage release (-Y7) (-R1)
Heater (condensation water protection) (-R01)
Electrical closing lock-out 3AX1405 (-F1)
• with position switch, electrical closing lock-out (-S5)
Circuit-breaker tripping signal 3AX4206-0A (-S6)
Mechanical interlock 3AX1420 for withdrawable part
Position switch 3AX4206-0A, prevents electrical closing if there is a
mechanical interlock
(-S12)
Key-operated interlock 3AX1437, with position switch
IP plate 3AX1456
PG fitting 3AX1458
Shaft cover 3AX1466

Description
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Motor (-M1)
Fig. 20 Power consumption of motor
Fig. 21 Recommendation for motor protection device
*) The operator's supply voltage is permitted to deviate from the rated supply voltage of the vac-
uum circuit-breaker by -15 % to +10 %.
**) Built-in automatic circuit-breaker with C characteristic
1) 50/60 Hz.
2) ± 50 W VA (empirically determined values)
After the supply voltage is applied and if the closing
spring is discharged, the motor starts immediately and is
automatically deactivated internally after charging has
taken place. For power consumption see table Fig. 20.
In the short charging time, the motor operates in the
overload range. See Fig. 21 for the rated current for the
required motor short-circuit protection.
Note
The motor protection devices are not included in the de-
livery of the vacuum circuit-breaker and must be ordered
separately.
Fig. 19 Motor (53)
Rated supply voltage U*)DC AC1)
V 24 48 60 110 220 110 230
3AE52) W/VA 90 100 90 100 130 350
DC AC1)
Rated supply voltage U*)V 24 48 60 110 220 110 230
Rated current of the protective
device I**)A 5 2 1.6 1 0.5 1 1.5

Description
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Auxiliary contactor (-K1)
Closing solenoid (-Y9)
If simultaneous electrical CLOSE and OPEN commands
are continuously applied to the vacuum circuit-breaker, it
returns to the open position after being closed.
The function of the auxiliary contactor (-K1) causes the
vacuum circuit-breaker to pause at this point until the
CLOSE command is given again.
This prevents continuous closing and opening (pump-
ing).
Fig. 22 Auxiliary contactor (34)
The closing solenoid (-Y9) unlatches the charged closing
spring and closes the vacuum circuit-breaker electrically.
It is available for DC or AC voltage.
The closing solenoid (-Y9) is not designed for continuous
operation and is terminated within the circuit-breaker via
the auxiliary switch (-S1) at the factory.
The operator's supply voltage is permitted to deviate
from the rated supply voltage of the vacuum circuit-
breaker by -15 % to +10 %.
The closing solenoid (-Y9) is protected against overvolt-
age ≥60 V.
Power consumption
300 to 370 W / VA (3AY1410)
Fig. 23 Closing solenoid (52)