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SVENSKA KRAFTNÄ'! S W E D I S H N A T I O N A L G R I D
UNIT, BUSINESS AREA AFS, Anläggningar
DATE 2015-03-18
CONSULTATIONS NB, NK, AS, AN
Mtj
OUR REFERENCE
TROI-O5E
T E C H N I C A L G U I D E L I N E
REVISION
4 APPROVED Td
0
SELF-CONTAINED INDUCTIVE VOLTAGE TRANSFORMERS 7.2 kV - 420 kV
INTRODUCTION This English text is to be regarded as a translation of the Swedish guideline edition. The Swedish text and the interpretation thereof shall govern the contract and the legal relations between parties.
These guidelines are mainly based on Standard SS-EN 61869-1 and SS-EN 61869-3. The guidelines specify alternatives in the case of several options in the standards, and also include additions and clarifications to the standards. The guidelines can be made binding conditions for the procurement by the Purchaser, and will in such case togeth-er with the applicable standards form specification of the requirements. In this situation the documents will be valid for design and testing of voltage transformers at rated voltages 7.2 - 420 kV.
These guidelines are not applicable for electronic voltage transformers.
T E K N I S K R I K T L I N J E 2 0 1 5 - 0 3 - 1 8 T R 0 1 - 0 5 E u i g 4
1 / 2 3
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Revision Notes Change notes Date
B Revision 2006-09-25
3 New template. Collaboration with Vattenfall removed.
Table with creepage distances have been updated, all creepage
distances for both ceramic and non-ceramic insulators are now identi-
cal.
The table in section 2.7.2 Loading Capacity have been clarified.
2013-02-25
4 Technical guideline’s headline changed in accordance with the stand-
ard. New standard SS-EN 61869. Other standards updated. Insulator
test according to appendix removed. Requirement for winding for earth
fault protection on request.
2015-03-18
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Content
1 General ....................................................................................................................... 5
1.1 Applicable standards ................................................................................... 5
1.2 Ambient temperature .................................................................................. 6
1.3 Wind .............................................................................................................. 6
2 Ratings ....................................................................................................................... 7
2.1 Rated frequency ........................................................................................... 7
2.2 Rated primary voltage ................................................................................ 7
2.3 Rated secondary voltages .......................................................................... 8
2.4 Inter-ratio connection ................................................................................ 8
2.5 Insulation ..................................................................................................... 9
2.5.1 Insulation levels............................................................................. 9
2.5.2 Creepage distances ........................................................................ 9
2.6 Rated voltage factor .................................................................................. 10
2.7 Secondary windings .................................................................................. 10
2.7.1 General ......................................................................................... 10
2.7.2 Loading capacity ......................................................................... 11
3 Design ...................................................................................................................... 13
3.1 General ....................................................................................................... 13
3.1.1 ...................................................................................................... 13
3.1.2 ...................................................................................................... 13
3.1.3 ...................................................................................................... 13
3.1.4 ...................................................................................................... 13
3.1.5 ...................................................................................................... 13
3.1.6 ...................................................................................................... 14
3.1.7 ...................................................................................................... 14
3.2 Gas-insulated voltage transformers ........................................................ 14
3.3 Mechanical strength .................................................................................. 14
3.4 Primary terminals ..................................................................................... 14
3.4.1 Design .......................................................................................... 14
3.4.2 Mechanical stress ........................................................................ 15
3.5 Secondary terminals .................................................................................. 15
3.5.1 Terminal box for secondary terminals ...................................... 15
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3.5.2 Contact components .................................................................... 15
3.5.3 Earthing clamps .......................................................................... 15
3.5.4 Clamp design ............................................................................... 15
3.6 Marking ...................................................................................................... 15
3.6.1 Rating plates................................................................................ 15
3.6.2 Circuit diagram plate ................................................................. 15
3.6.3 Plate design .................................................................................. 16
3.7 Insulators ................................................................................................... 16
4 Testing ..................................................................................................................... 17
4.1 Type tests .................................................................................................... 17
4.1.1 Insulator test ............................................................................... 17
4.2 Routine test ................................................................................................. 17
4.2.1 Check of partial discharges ........................................................ 18
4.2.2 Insulator testing .......................................................................... 18
4.3 Test certificates .......................................................................................... 18
4.3.1 Type test certificates ................................................................... 18
4.3.2 Routine test certificates .............................................................. 18
5 Documentation ........................................................................................................ 18
5.1 General ....................................................................................................... 18
5.2 Tender documentation .............................................................................. 18
5.3 Documentation together with apparatus delivery .................................. 19
5.4 Documentation and spares after delivery .............................................. 20
6 Delivery ................................................................................................................... 20
7 Appendix .................................................................................................................. 21
7.1 Appendix 1. Terminal Plate and Bolt, dimensions. .................................. 21
7.2 Appendix 2. Component Data List ...........................................................22
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1 General
1.1 Applicable standards Applicable Swedish Standards are valid. When there is no Swedish Standard, Europe-
an Standard (EN) and IEC Publication shall apply. The latest edition shall apply.
Where voltage transformers offered do not in every way fulfil the stipulated standards
and the additions of the guidelines, deviations shall be specified.
Applicable standards and guidelines:
SS-EN 61869-1:2013 Instrument transformers – Part 1: General require-
ments
SS-EN 61869-3:2012 Instrument transformers – Part 3: Additional require-
ments for inductive voltage transformers
IEC 60071-1:2006 Insulation coordination
IEC60 273:1990 Insulators – Support insulators for switchgear at
system voltage over 1000 V – Dimensions and technical
data
SS-EN 60529:2000 Degrees of protection provided by enclosures (IP code).
SS-EN ISO 1461: 2009 Hot dip galvanized coatings on fabricated iron and steel
articles – Specifications and testing procedures.
SS 421 01 67 :2001 Design of outdoor substations - Wind and ice loads.
IEC 60296:2012 Fluids for electrotechnical applications – unused
mineral insulating oils for transformers and switchgear
SS-EN 62155 :2003 Hollow pressurized and unpressurized ceramic and
glass insulators for use in electrical equipment with
rated voltages greater than 1 000 V
IEC/TS 60815 -2 Guide for the selection of insulators in respect of
polluted conditions - Part 2: Ceramic insulators.
IEC/TS 60815 -3 Guide for the selection of insulators in respect of
polluted conditions - Part 3: Polymer insulators.
SS-EN 61462:2008 Composite insulators – Hollow insulators for use in
outdoor and indoor electrical equipment.
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SS-EN 50052 –C1:2008 Cast aluminium alloy enclosures for gas filled
high-voltage switchgear and controlgear.
SS-EN 50064 T1,–C1:2008 Wrought aluminium and aluminium alloy enclosures
for gas-filled high-voltage switchgear and controlgear.
SS-EN 50068 –C1:2008 Wrought steel enclosures for gas-filled high-voltage
switchgear and controlgear.
SS-EN 50069 –C1:2008 Welded composite enclosures of cast and wrought
aluminium alloys for gas-filled high-voltage switchgear
and controlgear.
1.2 Ambient temperature It shall be informed at which conditions the voltage transformer shall be installed on
site and which temperature interval is applicable. The following temperature limits
shall apply for different applications:
Application Lower limit Upper limit
Degrees Celsius
For indoor installation - 25 + 40
Outdoor, with solid and liquid insulation - 50 + 40
Outdoor, with gas insulation, north of
Dalälven - 50 + 40
Outdoor, with gas insulation, south of
Dalälven - 40 + 40
1.3 Wind For normal applications the wind pressure 700 Pa against a plane surface shall apply.
This corresponds to a wind velocity of 34 m/s. For equipment in exposed locations, e.g.
coastal or mountain areas, a higher wind pressure might be necessary. Design shall in
such case be done with a wind pressure in accordance with SS 421 01 67.
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2 Ratings
2.1 Rated frequency The rated frequency shall be 50 Hz.
2.2 Rated primary voltage The voltage transformers shall be designed for application in accordance to one of the
following alternatives:
I. Connection between phase and earth
II. Connection between neutral and earth
III. Connection between phases
The rated primary voltage shall be chosen from the values below:
I. Connection between phase and earth
6.6/√3; 11/√3; 22/√3; 33/√3; 44/√3; 77/√3 kV
The transformers for system voltage of 170 kV (145 kV) shall be possible to in-
terconnect between the primary voltage ratings of:
132/√3 − 154/√3 kV
The transformers for system voltage of 245 kV shall be possible to intercon-
nect between the primary voltage ratings of:
220/√3 − 242/√3 kV
The transformers for system voltage of 420 kV shall have a primary voltage
rating of:
407/√3 kV
as the main option. The transformers can be specified to be possible to inter-
connect between the primary voltage ratings of:
385/√3 − 396/√3 − 407/√3 kV
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II. Connection between neutral and earth
6.6/√3; 11/√3; 22/√3; 33/√3; 44/√3; 77/√3 kV
III. Connection between phases
6.6; 11; 22; 33; 44 kV
2.3 Rated secondary voltages Secondary voltages shall be chosen from the following values (Upr = rated primary
voltage):
I. Connection between phase and earth
Winding for relay protection (not earth fault protec-
tion) , measurement and synchronization 110/√3 V
* Winding for earth fault protection in non-solidly
earthed systems (𝑈𝑝𝑟 ≤ 77/√3 kV) 110/3 V
* Winding for earth fault protection in solidly earthed
systems (𝑈𝑝𝑟 = 132/√3 − 407/√3 kV) 110 ∗ √3 V
* Normally, the voltage transformer shall not have a winding for earth fault
protection. If the winding for earth fault protection is requested it shall be
stated in the invitation to tender.
II. Connection between neutral and earth
Winding for earth fault indication or earth fault protection
(if included on request): 110 V
III. Connection between phases
Winding for measurement or phasing and voltage regulation: 110 V
2.4 Inter-ratio connection Change-over from one ratio to another shall be carried out at the secondary side. All
other requirements (e.g. concerning rated burden) must be satisfied, even for the most
unfavourable alternative.
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2.5 Insulation
2.5.1 Insulation levels
The following selection of insulation levels shall apply:
Rated primary
voltage
Upr
kVr.m.s.
Highest
voltage
for
equip-
ment
kVr.m.s.
Rated withstand voltage for:
Lightning
impulse
kVpeak
Switching
impulse
kVpeak
1 min power
frequency test
kVr.m.s.
6.6/√3 (6.6) 7.2 60 – 20
11/√3 (11) 12 75 – 28
22/√3 (22) 24 125 – 50
33/√3 (33) 36 170 – 70
44/√3 (44) 52 250 – 95
77/√3 82.5 380 – 150
132/√3 − 154/√3 170 (145) 650 – 275
220/√3 − 242/√3 245 950 – 395
385/√3 − 395/√3 − 407/√3 420 1425 1050 460
407/√3 420 1425 1050 460
2.5.2 Creepage distances
See clause on insulators, Clause 3.7.
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2.6 Rated voltage factor Rated voltage factor shall be in accordance with SS-EN 61869-3, that is:
Rated primary voltage
Upr
KVr.m.s
Rated voltage factor
Continuous During 8 h During 30 s
𝑈𝑝𝑟 ≤ 11/√3 1,2 1,9 –
22/√3 ≤ 𝑈𝑝𝑟 ≤ 77/√3 1,2 – 1,9
𝑈𝑝𝑟 = 132/√3 − 407/√3 1,2 – 1,5
Voltage transformers intended for connection between neutral and earth, as well as
between phases, shall only be designed for the rated voltage factor 1.2 continuously.
2.7 Secondary windings
2.7.1 General
The voltage transformers shall be designed with the following windings:
I. Connection between phase and earth
• One combined measuring, relay and synchronization winding
• One electrically completely separated earth-fault winding (if included on
request acc. to 2.3)
II. Connection between neutral and earth
• One earth-fault winding (if included on request acc. to 2.3)
III. Connection between phases
• One measuring winding
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2.7.2 Loading capacity
I. Connection between phase and earth
The measuring, relay and synchronisation winding shall fulfil the following
demands at unloaded earth-fault winding (if included on request acc. to 2.3):
Rated primary voltage
Upr
KVr.m.s
Rated burden
VA Class
6.6/√3 − 22/√3 25/50 0.2 / 0.5
33/√3 50 0.2 och 3 P
44/√3 50 0.2 och 3 P
77/√3 50 0.2 och 3 P
132/√3 − 154/√3 50 0.2 och 3 P
220/√3 − 242/√3 50 0.2 och 3 P
385/√3 − 407/√3 50 0.2 och 3 P
The accuracy class 0.2 shall be kept from 1 to 50 VA and the transformer shall
be zero adjusted at 50 % of the rated burden.
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The earth-fault winding (if included on request acc. to 2.3) shall fulfil the fol-
lowing demands:
Rated primary
voltage
Upr
kVeff
Rated burden
VA
at cos φ = 1
Accuracy requirements
6.6/√3 − 11/√3 50 Class 3 P
22/√3 − 77/√3 50
Class 3 P (Rated over voltage factor 1.9) and
with both secondary windings loaded at 1 VA
– 100 % of their rated burdens respectively.
132/√3 − 154/√3 50
Class 0.5 within 0.9 – 1.5 times the rated
voltage at 0 – 100 % of the rated burden of
the earth-fault winding and the measuring
winding loaded at 1 VA – 100 % of its rated
burden. Actual phase angle displacement at
1.5 times rated voltage and unloaded wind-
ing shall be specified.
220/√3 − 407/√3 50
Class 0.5 within 0.9 – 1.5 times the rated
voltage at 0 – 100 % of the rated burden of
the earth-fault winding and the measuring
winding loaded at 1 VA – 100 % of its rated
burden. Actual phase angle displacement at
1.5 times rated voltage and unloaded wind-
ing shall be specified.
II. Connection between neutral and earth
The earth-fault winding (if included on request acc. to 2.3) shall fulfil the fol-
lowing demand:
Rated burden
VA Class
50 6 P
Rated voltage factor 1.2.
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III. Connection between phases
The measuring winding shall fulfil the following demand:
Rated burden
VA Class
50 0.2
The accuracy class shall be kept from 1 VA to 50 VA.
3 Design
3.1 General Voltage transformers shall be equipped, if possible, with solid insulation. Alternatively
they may have liquid or gas insulation, depending on different environmental de-
mands. The quantity of liquid or gas shall in that case be as small as possible, prefera-
bly less than 200 kg liquid.
3.1.1
All parts exposed to corrosion shall be made of non-corrosive material, or be hot-dip
galvanized according to SS-EN ISO 1461.
3.1.2
The voltage transformers shall be hermetically sealed if applicable.
3.1.3
Liquid-insulated voltage transformers shall be equipped with an easily readable liquid
level indicator.
3.1.4
The metallic lower part of the voltage transformer shall be provided with at least two
earthing clamps. For voltages ≥ 170 kV the earthing clamps shall be designed for up to
120 mm2 copper conductor.
3.1.5
Voltage transformers for a highest voltage for equipment of 245 kV or 420 kV shall be
possible to transport in horizontal position.
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3.1.6
Liquid-filled current transformers shall be completely free from PCB.
3.1.7 Voltage transformers with a rated primary voltage of 𝑈𝑝𝑟 ≤ 22/√3 kV for indoor appli-
cations shall be of dry type and intended for erection in arbitrary position. Transfor-
mers of dry type intended for outdoor application and with 𝑈𝑝𝑟 ≤ 22/√3 kV can be
designed without outer insulation.
Other transformers of dry type intended for outdoor application shall be provided with
an external insulation in accordance with Clause 3.7.
3.2 Gas-insulated voltage transformers Gas-filled voltage transformers shall preferable have pure SF6 without other gas mix-
tures. When mixed gas is needed, N2 will be accepted, but not CF4 due to environmen-
tal reasons. At a maximum, 0.5 % gas leakage per year will be accepted. Gas- filled
voltage transformers shall be monitored by a density relay with a closing contact func-
tioning at two levels (filling, blocking). The density shall also be indicated on pointer
type instrument.
3.3 Mechanical strength The voltage transformers shall be designed to withstand the mechanical stresses
which may occur as a result of forces on the primary terminal in accordance with
Clause 3.4.2.
Special consideration shall be given to SS-EN50052 in terms of pressure vessel re-
quirements for pressurized units.
3.4 Primary terminals
3.4.1 Design
The supplier shall denote the material of the terminals. Dimensions of terminals are
shown in Appendix 1.
Terminals of copper or copper alloy shall be tin-plated with a layer of minimum 50
μm, or alternatively silver-plated, with a layer of minimum 20 μm. A copper alloy sen-
sitive to stress corrosion shall not be used.
Terminals made of aluminium or aluminium alloy shall not be surface treated. An
aluminium alloy sensitive to stress corrosion, layer corrosion or intercrystalline corro-
sion shall not be used. Terminal plate of aluminium or aluminium alloy shall have a
hardness of HB minimum 750 N/mm2.
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3.4.2 Mechanical stress
The voltage transformers shall be designed to sustain the mechanical stress that may
occur as a result of forces on the primary terminals. In addition, they shall as applica-
ble fulfil the demands according to SS-EN 61869-1, Table 7.
3.5 Secondary terminals
3.5.1 Terminal box for secondary terminals
The terminal box shall be spacious and allow the connection of necessary connecting
leads to be carried out comfortably.
The terminal box shall be of semi-enclosed and spray-tight design (Protection class
minimum IP 54 according to SS-EN 60529 for 𝑈𝑝𝑟 ≥ 77/√3 kV, IP44 for others) and
shall be provided with rain-protected, net-covered breather holes. Box-cover gaskets
shall be resistant to solar radiation, air, oil and water.
3.5.2 Contact components
All contact components, even screws, shall be made of non-corrosive metal.
3.5.3 Earthing clamps
The terminal box shall be provided with a clamp for earthing of the secondary wind-
ings (Regarding earthing of the base, see Clause 3.1.4).
3.5.4 Clamp design
Terminal clamps and earthing clamps shall be designed for connection of up to 6 mm2
stranded conductors, and be such that conductors can be connected without cable lugs
and without sustaining damage.
3.6 Marking
3.6.1 Rating plates
The voltage transformer rating plate shall include data in accordance with SS-EN
61869-1 and SS-EN 61869-3. Total weight and serial number shall also be specified.
3.6.2 Circuit diagram plate
A lastingly legible circuit diagram plate showing the voltage transformer connection
and terminal markings shall be permanently fixed to the transformer near the secon-
dary terminal box. The circuit diagram plate shall not contain information more than
the delivered apparatus. The specific main data for each winding shall be clear from
the plate.
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3.6.3 Plate design
The rating plates shall be made of anodised aluminium sheet or equivalent non-
corrosive material and shall be fixed with non-corrosive screws. Deviations from this
may only be approved by the purchaser.
3.7 Insulators Insulators shall be of composite for voltage transformers with a highest voltage Um of
245 and 420 kV. For Um < 245 kV composite insulators are preferred. Composite insu-
lators shall be designed and tested in accordance with applicable standards and SS-EN
61462. Ceramic insulators shall be designed and tested in accordance with applicable
standards and IEC/TS 60815-2.
For some exposed locations an increased creepage distance and the possibility for
insulator washing may be required. The possibility for washing shall then be specified
in the request for tender. Voltage transformers may be washable, washable with con-
strains or not washable. If the voltage transformer is washable with constrains the
constrains shall be specified in the tender.
In a normally polluted environment a creepage distance of Site Pollution Severity
(SPS) class b is required and for polluted environment class d is required. Increased
creepage distance is recommended in the west coast of Sweden (approximately 30 km
from the coast and in the valley of the river Göta älv up to the Lake Vänern).
If not other specified the same creepage distance shall be valid for composite and ce-
ramic insulators. The requirement is based on the figure below. For normal environ-
ment SPS class b is valid and for polluted environment class d, according to IEC/TS
60815-2 and IEC/TS 60815-3.
Creepage distance (unified specific creepage distance, USCD) as
function of pollution (SPS class)
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The required creepage distances for insulators in normal and polluted environment are
specified in the table below:
Highest voltage
for equipment,
Um
kV
Minimum creepage distance (mm)
Ceramic/Composite
Polluted environment
(class d)
(klass d)1
Normal environment
(class b)
(klass b)1 12 300 190
24 600 380
36 900 570
52 1300 830
82.5 2060 1320
145 3620 2320
170 4250 2720
245 6120 3920
420 10500 6720
4 Testing
If the test laboratory of the supplier complies with ISO 17025, the laboratory is consid-
ered to fulfil the accuracy demands. If not so, the supplier must show the documenta-
tion on test procedures and the traceability of the standards.
4.1 Type tests It shall be presented that demands on tightness, insulation and accuracy are fulfilled
even at the lowest ambient temperature.
Other type tests shall be done in accordance with SS-EN 61869:1 , Clause 7.2 and SS-
EN 61869-3, Clause 7.2.
4.1.1 Insulator test
Insulators shall be tested according to applicable standards and to IEC 61462 (compo-
site) and IEC 60851 (ceramic), respectively. See also Clause 3.7.
4.2 Routine test Routine tests shall be performed according to SS-EN 61869-1, Clause 7.3, and SS-EN
61869-3, Clause 7.3 with the following clarifications:
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4.2.1 Check of partial discharges
Measuring of partial discharges shall be performed in connection with short time po-
wer frequency voltage test according to test procedure A described in SS-EN 61869-1,
Clause 7.3.2.2.
4.2.2 Insulator testing
Insulators shall be tested according to suitable standard as IEC 61462 (composite) and
IEC 60815 (ceramic). See also Clause 3.7.
4.3 Test certificates
4.3.1 Type test certificates
If production has been moved to another plant, material has been changed, or if type
test certificate is more than five years old, then the type test certificate cannot be ac-
cepted unless special agreement.
4.3.2 Routine test certificates
The routine test certificates shall include, in addition to the routine test results, and
when applicable the following information:
> The date and number of the type test certificate
> Voltage transformer data
> Purchaser’s reference number
> Serial number
> Reference to dimension drawings
5 Documentation
5.1 General Instructions, dimension drawings and diagrams, handed over at delivery of the voltage
transformer, shall be in Swedish.
5.2 Tender documentation With the tender the following documents shall be provided:
> List of data, dimension drawings, electrical circuit and schematic diagrams, in-
structions for erection, operation and maintenance, type test certificates and also
other documents needed for the technical evaluation.
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> Bases for evaluation of the need and costs for maintenance, such as:
• The interval for condition control and other measures of maintenance and the
time necessary for these works.
• Necessary spares, special tools and accessories and the costs for these.
> Environmental information as below (see also TR13-01):
• Information about the main content of the equipment (type of material in per-
centage of weight).
• Information about the content of dangerous substances (for example heavy
metals, carcinogenic compounds and compounds hard to biodegrade, xeno-
biotic substances).
• Handling and treating of the equipment when it has served its time.
5.3 Documentation together with apparatus delivery In connection with the apparatus delivery the following documents shall be submitted
electronically and in one paper copy, if not otherwise agreed:
A list including:
> Purchasing and order number
> Manufacturer
> Type
> Serial number
> Rated data
> Specification on apparatus pressure vessel classification
> Inspection documents
> Type test certificates
> Dimension drawings
Verification (title and number) of the following documents that shall be delivered to-
gether with the list:
> General assembly drawings and drawing lists
> Instructions for transport, storing, erection, service, testing, condition control and
adjustment
> List of other chemical products including gas
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> List of products and protective information for all listed chemical products
> List of special tools and accessories for erection and maintenance
> List of equipment for testing and condition control
> List of spares
> Final dimension drawings
> Final circuit diagrams
> Routine test certificates
> Filled-in component data list according to Appendix 2
A complete compilation file shall be handled over to the buyer, latest when all ordered
voltage transformers are delivered. It shall include test certificates for all voltage trans-
formers of the delivery in accordance with paragraph 4.3.2.
5.4 Documentation and spares after delivery The manufacturer shall at request provide the purchaser with necessary service bulle-
tins and during at least ten years after delivery with for the maintenance necessary
spares. Improvements in design or instructions, which can be applied to the equip-
ment supplied, shall be notified to the buyer also after delivery, preferably in the form
of service bulletins.
6 Delivery
The delivery is not considered complete until entire test certificates and required do-
cumentation have been submitted to the purchaser and have been approved.
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7 Appendix
7.1 Appendix 1. Terminal Plate and Bolt, dimensions.
a
ec
38
d
d
e
a
a
cb b
b
c
Fig. 1 Fig. 2
d
e
b
c
Fig. 3
a
a
cb
c
c
Terminal plate Figure Dimensions (mm): a b c d e
2 - 75 1 2- holes 75 17.5 40 14 10
4 - 75 2 4- holes 75 17.5 40 14 15
9 - 125 3 9- holes 125 22.5 40 14 35
Terminal bolt
Length: 125 mm Diameter: 30, 40 mm
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7.2 Appendix 2. Component Data List
Apparatdatalista för spänningstransformator Svenska Kraftnät
Beskrivning Värde Enhet Not
Allmänt
Station * Ifylls av ställverksbyggaren
EX Hagby, CT 65
Objekt id/Littera * Ifylls av ställverksbyggaren
EX CL6 S5-UT
Lägsta omgivningstemp °C Ex -50
Inköpsnummer *
Leverantörens ordernummer *
Tillverkare *
Typbeteckning *
Tillverkningsnummer * Nummer
Levererad * ååmm
Utförandeform * Induktiv/ Kapacitiv
Huvudkonstruktion * Utomhus/inomhus
Kontruktionsspänning kV EX 420kV
Primär märkspänning kV
Sekundär märkspänning V
Sekundär kortslutningsström A
Primär isolationsnivå till jord -
kort stöt kV EX 1425
Primär isolationsnivå till jord -
lång stöt kV EX 1050
Primär isolationsnivå till jord -
50Hz 1 min kV EX 395
Sekundär korttids växelsp.
lindn-lindn, lindn-jord kV EX 4
Spolbarhet * Ja/Nej/Begränsad
Minsta fasavstånd m
Vikt per tre faser kg
Pris per tre faser SEK
Norm, Riktlinje * EX TR1-05, rev 4, TR1-06,
rev 4
TEKNISK RIKTLINJE 2015-03-18 TR01-05E utg 4
23/23
Standard * SS-EN 61869-6
Ombyggnadsdatum * ååmm
Senaste drifttagningsdatum * ååmm
Sammanställningsritning * Ritningsnummer
Måttskiss * Ritningsnummer
Montage och skötselanvisning * Ritningsnummer
Kretsschema * Ritningsnummer
Provningsnormal * Ritningsnummer
Isolermedium olja/gas/torr, spec nr
Mängd isolermedium kg
Max statisk horisontell
anslutningskraft N EX 3000
Max statisk vertikal anslutningskraft N EX 3000
Apparatuttag, storlek EX 9-125 (platta), 60
(tapp)
Kapslingsklass anslutningslåda * IP54/IP55
Typ av isolator * porslin/komposit
Krypsträcka isolator mm
Ritningsnr pol *
Ritningsnr isolator * nummer
Sekundärlindningar
Märkbörda Huvudlindning VA Ex 50
Uttagsbeteckning Huvudlindning a, b
Klass Huvudlindning * EX 0,2
Omsättning Huvudlindning V
Uttagsbeteckning Jordfelslindning a, b
Klass Jordfelslindning * EX 0,5
Omsättning Jordfelslindning V
Totalvikt
Typ isolermedia
Tangens delta vid Um/V3 och
rumstemperatur
PU-nivå pC
Expansionssystem ex metallbälg
Typ isolermedia