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Installation and maintenance guide

1ZSC000563-ACD EN, REV. A, 2019-06-25

4.4 Installation of electrical circuits, 1ZSC003881-AAC

Procedure

1.

Remove the terminal cover (5), and the O-ring (7).

G002953

2.

Apply Mobilgrease 28 to the O-ring (7) and put it
in the groove.

G006827

3.

Remove the grounding cable (6).

G003137

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Содержание 2769522-C

Страница 1: ...1ZSC000563 ACD EN REV A 2019 06 25 Test adapter Installation and maintenance guide ...

Страница 2: ...or any errors that may appear in this document ABB AB is not liable for any damage resulting from the incorrect interpretation of this document This document or parts thereof may not be reproduced or copied without ABB AB s consent It may not be distributed to others or used by unauthorized parties Any breaches to the above will be penalized with the support of applicable laws ...

Страница 3: ...spection 11 3 2 Transportation 11 3 3 Storage 11 4 Installation 13 4 1 Tools 13 4 2 Consumables 13 4 3 Installation of the test adapter 1ZSC003881 AAC 14 4 4 Installation of electrical circuits 1ZSC003881 AAC 16 4 5 Installation of the test adapter 2769522 C 19 4 6 Installation of electrical circuits 2769522 C 22 5 Commissioning 25 5 1 Output error sources 25 5 2 Insulation test 25 6 Disposal and ...

Страница 4: ...4 Installation and maintenance guide 1ZSC000563 ACD EN REV A 2019 06 25 ...

Страница 5: ...duct It is used for example to warn of such dangers as contact with high voltage explosion or fire risk risk for toxic gases risk of crushing impacts falls from high places etc CAUTION The round warning symbol warns that an accident could occur if the instructions are not observed and that this could result in personal injury and or damage to the product It is also used to warn of risks that entai...

Страница 6: ...s or platforms in poor weather conditions Working with heavy objects Do not walk under lifted objects Make sure that heavy objects are stable before starting work 1 3 Safety precautions Precaution Action Transformer oil Collect used transformer oil in drums Transformer oil is dangerous Fumes from hot oil can cause irritation to the respiratory organs and the eyes Long and repeated contact with tra...

Страница 7: ...ring equipment for monitoring of the bushing during service All transformer bushings and some wall bushings that are manufactured by ABB Components are capacitance graded bushings that are equipped with a voltage tap or test tap Tap types G000738 A Large tap Voltage tap two connected layers or test tap one connected layer B Small tap Test tap one connected layer 3 Cover 4 Stud 5 Grounding spring 6...

Страница 8: ...de 1ZSC000563 ACD EN REV A 2019 06 25 Test adapter 2769522 C G000745 1 Terminal box 2 Plug 3 Cover 4 Nut This cover is installed on the bushing on delivery from ABB Test adapter 1ZSC003881 AAC G000778 1 Terminal cover 2 Extension 3 Plug ...

Страница 9: ...ounded through the cover to prevent damage to the bushing 2 3 Description and limitations of the tap Overview The values of impedance for the main insulation and the tap are unique to every bushing Refer to the rating plate on the bushing or to the bushing installation and maintenance guide The value of the capacitance C2 depends on the design of the bushing and on its installation and can thus va...

Страница 10: ...t Definition C1 Capacitance 1 in condenser core F Refer to the test report for the bushing C2 Capacitance 2 in condenser core F Refer to the test report for the bushing when it was installed on the transformer U2 Tap voltage V U2max The maximum service voltage V U1 Voltage between outer terminal and earth V R Resistance Ω Z Impedance Ω ω Angular velocity for AC voltage rad s L Inductance H ωL Indu...

Страница 11: ...een delivered refer to the packing list Carefully inspect the parts for shipping damage 3 2 Transportation Keep the test adapter in the original packaging during transportation 3 3 Storage Keep the test adapter in the original packaging until installation The test adapter must be stored indoors in a controlled temperature with low humidity ...

Страница 12: ...12 Installation and maintenance guide 1ZSC000563 ACD EN REV A 2019 06 25 ...

Страница 13: ...tion 4 1 Tools Tool Part number Note Torque wrench Crosshead screwdrivers Phillips type and Pozidriv type 4 2 Consumables Item Brand Part number Note Mobilgrease 28 MOBIL 11714014 407 Lubricates and protects metals against corrosion Protects rubber Does not react with transformer oil ...

Страница 14: ...th to personnel Make sure that the bushing is de energized and out of service Make sure that the high voltage parts are visibly grounded before removing the cover on the tap CAUTION Do not energize the bushing without a test adapter 4 or the cover 1 installed The bushing is grounded through the test adapter 4 or cover 1 and this prevents damage to the bushing Procedure 1 Remove the cover 1 G000773...

Страница 15: ...5 15 2 Remove the protective cap 6 G000774 3 Apply Mobilgrease 28 to the O ring 2 and and the threads of the test adapter 4 G000779 4 Put the O ring 2 in the groove in the test adapter 4 5 Install the test adapter 4 and tighten it G000781 Torque 15 Nm End of instruction ...

Страница 16: ...D EN REV A 2019 06 25 4 4 Installation of electrical circuits 1ZSC003881 AAC Procedure 1 Remove the terminal cover 5 and the O ring 7 G002953 2 Apply Mobilgrease 28 to the O ring 7 and put it in the groove G006827 3 Remove the grounding cable 6 G003137 ...

Страница 17: ... sure that the seal 8 has a correct seal against the signal cable An incorrect seal will cause water to leak into the terminal cover NOTE If the bushing is used outdoors the cable gland must be of IP67 classification or better and have a rubber seal 8 NOTE The cable gland must have PR 16 threads G006820 6 Install the cable gland 9 to the terminal cover 5 G006419 ...

Страница 18: ...shielding for this application G005034 8 Make sure that the measuring equipment receives signals correctly 9 Apply Mobilgrease 28 to the threads of the the terminal cover 5 and install it CAUTION Make sure that the terminal cover seals correctly An incorrect seal will cause water to leak into the test adapter G006819 Torque Tighten with your hand 10 Make sure that the flexible rubber seal 8 has a ...

Страница 19: ...GER Risk of death to personnel Make sure that the bushing is de energized and out of service Make sure that the high voltage parts are visibly grounded before removing the cover on the tap CAUTION Do not energize the bushing without the cover 1 installed The bushing is grounded through the cover and this prevents damage to the bushing Procedure 1 Remove the cover 1 G000771 ...

Страница 20: ...2 to a distance of 1 5 mm 0 5 mm from the terminal box 4 G005030 3 Apply Mobilgrease 28 to the O ring 3 and put it in the groove 7 in the terminal box CAUTION Do not remove the plug 11 until the measuring circuits are installed Moisture will enter the terminal box G001914 4 Install the test adapter 8 G001917 ...

Страница 21: ...eals correctly CAUTION An incorrect seal will cause water to leak into the terminal box G006836 7 Apply Mobilgrease 28 to the threads on the cover 1 and then install the cover 1 CAUTION Do not energize the bushing without the cover 1 installed The bushing is grounded through the cover and this prevents damage to the bushing G006822 End of instruction ...

Страница 22: ...n and maintenance guide 1ZSC000563 ACD EN REV A 2019 06 25 4 6 Installation of electrical circuits 2769522 C Procedure 1 Remove the cover 1 G006822 2 Remove the grounding cable 6 G002947 3 Remove the plug 11 G006823 ...

Страница 23: ...stall the signal cable for the measuring equipment refer to the instructions from the manufacturer CAUTION Use a signal cable of sufficient size for the amperage and voltage Make sure that the signal cable is rated for outdoor use and that it has the correct shielding for this application G006262 6 Make sure that the measuring equipment receives signals correctly 7 Make sure that the flexible rubb...

Страница 24: ...nce guide 1ZSC000563 ACD EN REV A 2019 06 25 8 Apply Mobilgrease 28 to the O ring 7 and put it in the groove G002954 9 Apply Mobilgrease 28 to the threads on the cover 1 and then install it G005029 Torque 62 Nm End of instruction ...

Страница 25: ...and conditioning Product information 2750 515 142 Lab production measured values may differ from site measurements because of different ground plane conditions etc The typical relative error is 1 Additional error sources are the tolerances in the measuring equipment and the timing when the operator reads the output 5 2 Insulation test 1 Do an insulation test according to ABB s installation and com...

Страница 26: ...26 Installation and maintenance guide 1ZSC000563 ACD EN REV A 2019 06 25 ...

Страница 27: ...t to an approved recycling company or sorted into different component materials for correct treatment Metals Metals should be sorted according to type and surface coating and sent to an approved recycling company Following the removal of any paint or other surface coating clean metal can usually be melted down and used in new products Many metal components of iron steel and aluminum are large and ...

Страница 28: ...s oil waste can be separated into oil water and a range of contaminants In many cases the oil can then be reused As an alternative the energy content in oil can be recovered through combustion at a plant designed for the purpose Rubber Send rubber to an approved environmental waste treatment plant either for disposal or reuse for various purposes Rubber is used in various seals Other materials Sor...

Страница 29: ...e 1ZSC000563 ACD EN REV A 2019 06 25 29 7 References 7 1 Summary IEEE standard performance characteristics and dimensions for outdoor apparatus bushings IEEE C57 19 01 1991 Bushing diagnostics and conditioning ABB document 2750 515 142 ...

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Страница 32: ...ABB AB Components SE 771 80 Ludvika Sweden www abb com transformercomponents Copyright 2019 ABB All rights reserved Specifications subject to change without notice 1ZSC000563 ACD EN REV A 2019 06 25 ...

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