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GEAFOL- / CARECO-Cast-resin Transformer/ Operating Instructions

Frei verwendbar

© 2020 Siemens Energy

Page 25

Addresses:

Siemens Energy Global GmbH & Co. KG
Transformer plant Kirchheim
Hegelstraße 20
73230 Kirchheim/Teck, Germany
Tel. Central: +49 (0) 7021 9322-0
Tel. Product Support: +49 7021 9954 134
E-Mail: kirchheim-sck.energy@siemens-energy.com
Website: siemens-energy.com/geafol

Siemens Transforátor Zrt.
II. Rakoczi Ferenc ut 189
1214 Budapest, Ungarn
Tel.: +36 1 471-1100

Siemens Transformadores, S.A. De C.V.
Carretera Guanajuato-Silao Km. 8
36250 Guanajuato, GTO, Mexico
E-Mail: juan.alanis@siemens-energy.com
Tel: +52 5579559887

Siemens Transformer (Guangzhou) Co., Ltd.
26, Jungong Road, East Area, GETDD,
510530 Guangzhou, China
E-Mail: DTService.STGZ.cn@siemens-energy.com
Tel: +86 20 62663366

Siemens Energy Brasil Ltda.
Av. Eng. João Fernandes Gimenes Molina, 1745,
13213-080, Jundiaí-SP., Brasil
Email: posvendasdt.br@siemens-energy.com
Tel. +55 11 96322 7604

Published by

Siemens Energy Global GmbH & Co. KG
Transmission
Freyeslebenstr. 1
91058 Erlangen
Germany

For more information, please visit our website:
siemens-energy.com/geafol

Siemens Energy is a trademark licensed by Siemens AG.

Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features
which may not always specifically reflect those described, or which may undergo modification in the course of further development of the
products. The requested performance features are binding only when they are expressly agreed upon in the concluded contract. All prod-
uct designations may be trademarks or product names of Siemens Energy Global GmbH & Co. KG or other companies whose use by third
parties for their own purposes could violate the rights of the owners.

For the U.S. published by

Siemens Energy, Inc
Transmission
4601 Six Forks Road
Raleigh, NC 27609
USA

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Summary of Contents for CARECO

Page 1: ...st resin Transformer Operating Instructions 2021 Siemens Energy Page 1 GEAFOL CARECO Cast resin Transformer OperatingInstructions siemens energy com Siemens Energy is a trademark licensed by Siemens AG Edition 09 2021 ...

Page 2: ...ating voltage siemens energy com 1 General information and safety notes Page 4 1 1 General information 1 2 Intended use 1 3 Obligations of the user 1 4 The five safety rules 1 5 Particular types of hazards 1 6 Occupational safety and protective Equipment 2 Scope Page 7 3 Usage Page 7 3 1 Classification in accordance to IEC 60076 11 4 Description Page 9 5 Transport goods receipt storage Page 10 5 1...

Page 3: ...e product system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Pro...

Page 4: ...Intended use The transformers described in these operating instructions have been designed for stationary use in general engineering applications Unless otherwise agreed the transformers have been designed for use in plants and equipment in industrial environments The transformers have been built based on state of the art technology and are shipped in an operationally reliable condition Changes ma...

Page 5: ...d strength class Siemens Energy AG accepts the warranty only for original spare parts The manufacturer who installs the transformer in a plant must include the regulations contained in the operating instructions in its own operating instructions If you have any questions please contact the manufacturer s factory See back of these operating instructions 1 4 The five safety rules For your own person...

Page 6: ...uch the transformer as long as the surface temperature is not be low 55 C WARNING Sharp edges and corners General risk of injury by sharp edges and corners WARNING Falling General risk of injury by falls Use only self locking climbing assis tance WARNING Magnetic field The transformer generates a magnetic field People with pacemakers must stay at least 3 m away from the transformer 1 6 Occupationa...

Page 7: ...The characteristics of the transformer limit the risk of fire Climatic class The following climate classes are available for GEAFOL CARECO transformers Climatic class Temperature for Transport and storage Operation C2 to 25 C to 25 C C3 to 40 C to 25 C C4 to 50 C to 40 C Standard for CARECO transformers Standard for GEAFOL transformers For lower ambient temperatures external preheating equipment m...

Page 8: ...e middle leg with a pointed miter joint at the yoke junction Windings The high voltage coils are made of aluminum or copper foils and high quality insulating films Each phase winding is formed from several separate coils connected in series these are encapsulated in resin under vacuum The winding ends and tappings are routed to threaded bushes and are encapsulated with the remainder of the winding...

Page 9: ...er is designed for accelerations of 10 m s2 or 1 0 g in all directions during transport For this purpose the transformer must be fixed as described below To fix the transformer on the loading area use an anti slip mat or fix the transformer at the crossbar on the floor of the loading area Tension belts must then be attached to the lashing eyes of the upper press frame from the inside see Fig 5 4 T...

Page 10: ...ravity of the transformer is in the upper half Make sure that you transport the transformer horizon tally WARNING Moving the transformer on the transport wheels is only permitted on a firm level surface NOTICE Moving the transformer on the transport rollers is permitted up to max 50 m 5 5 Unpacking examination GEAFOL CARECO transformers should be unloaded and unpacked in a sheltered area and inspe...

Page 11: ...assembly and fitting of the delta connections is the re sponsibility of the customer When installing the transformer in confined spaces it may be necessary to dismantle the delta connections If there are covers at the ends of the switch tubes open the cable ties with a spanner and carefully pull the cover off the screw connection Mark the screws and switch tubes with the relevant instal lation pos...

Page 12: ...n adequate supply of fresh air to dissipate the heat loss Approximately 200 m3 of fresh air per hour and for each kW of heat loss is the recommended value more information can be found in the GEAFOL Planning Guidelines 5 10 Minimum clearances Make sure that the clearances from the surface of the cast resin coils to the walls busbars grounded parts and other elements satisfy the applicable installa...

Page 13: ...rans former that steadily drips into the transformer If the transformer is regularly switched off for several days make sure that no condensation occurs during this time This prompts the transformer to become dirty If the cooling effect is too low a ventilation system can be retrofitted Housing for outdoor installation In the event of a storm or heavy rain water may enter the interior of the trans...

Page 14: ...ed to the aluminum terminals provided for this purpose Here again it must be ensured when connecting cables that they feature adequate strain relief to avoid undue mechan ical stress at the terminals The following guidelines must be observed when connecting the transformer terminals via expansion straps If the low voltage connection is established with busbars an expansion strap flexible connectio...

Page 15: ...rder to transmit the bolting force to the largest possible contact surface stiffened washers should be inserted under the bolt head and the nut Spring elements are also necessary to resiliently accommodate heat generated tension to compensate for plastic deformation and maintain the re quired minimum contact pressure at all times Both conditions can be met by conical spring washers per DIN 6796 wh...

Page 16: ...er mistors according to DIN 44082 or resistance thermome ters PT100 in accordance with IEC 60751 and the associ ated monitoring devices The terminal box the connection diagram of the tempera ture monitoring and the specification of the limit tempera tures are located on the upper press frame as standard Fig 6 6 The temperature values for the warning alarm triggering or fan control functions must b...

Page 17: ...rovided by the customer The connections of the fan are located on the fan motor of the individual fan on the bottom side of the transformer Connect the fan according to the operating instruc tions of the fan During commissioning check the function of all fans Ensure that the fans are rotating in the correct direc tion Notice On delivery the default setting of the monitoring system types T154 and N...

Page 18: ...an destroy connected components All connecting brackets at the HV windings must be fixed at the same voltage tapping NOTICE Different positions of the connecting brackets on the indi vidual coils can destroy the transformer After reattaching the screws of the connecting brackets must be tightened to the torque shown on the label Fig 6 12 Cover on taps of connection bar If there are covers on taps ...

Page 19: ...l be switched off during the transient response of the current This will lead to high excess voltages in the transformer windings where they may cause damage Inspection and cleaning GEAFOL CARECO transformers are practically maintenance free If they are operated in very dusty installations for in stance in rolling mills we recommend cleaning several times a year Typically once every year the conta...

Page 20: ...s Hot surface see chapter 1 Check the cleanliness of the air inlet and outlet openings Check that the protective housing is clean and dry Clean if necessary Screw connections of all electrical connec tions and earthing 1x per year Check the torque of the screw connections of all electrical terminals the high voltage tappings and the connections from one system to another in the case of double tier...

Page 21: ...s The factory number is indicated on the rating plate Product Support cast resin transformers Telefon 49 7021 9954 134 E mail kirchheim sck energy siemens energy com Webseite siemens energy com geafol Standard spare parts Part designation Siemens Energy Kirchheim Material No Temperature sensor PT100 4170004730 Tripping device MSF 220 K PTC 4170010437 PTC resistor 120 Fan on 4102642197 PTC resistor...

Page 22: ...ensors of core Permanent overvoltage Check voltage reduce voltage if necessary Short circuit triggering a monitoring unit Inrush current too high Adjust inrush current Dirt Clean the transformer see chap 8 Humidity too high Check ventilation remove water clear water drainage Traces of soot on the transformer Tracking Dirt Clean the transformer see chap 8 check ven tilation Screw connections on liv...

Page 23: ...ant standards No Heading IEC 60076 11 Power transformers Part 11 Dry type transformer IEC 60076 1 Power transformers Part 1 General IEC 60076 3 Power transformers Part 3 Insulation levels dielectric tests and external clearances in air IEC 60076 5 Power transformers Part 5 Ability to withstand short circuit IEC 60076 10 Power transformers Part 10 Determination of sound levels IEC 60076 12 Power tr...

Page 24: ...GEAFOL CARECO Cast resin Transformer Operating Instructions 2021 Siemens Energy Page 24 EC declaration of conformity ...

Page 25: ... Molina 1745 13213 080 Jundiaí SP Brasil Email posvendasdt br siemens energy com Tel 55 11 96322 7604 Published by Siemens Energy Global GmbH Co KG Transmission Freyeslebenstr 1 91058 Erlangen Germany For more information please visit our website siemens energy com geafol Siemens Energy is a trademark licensed by Siemens AG Subject to changes and errors The information given in this document only ...

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