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Installation, Operation

& Maintenance Manual

01773 531531

[email protected]

www.bowerselec.co.uk

2021

Cast Resin

Earthing Transformers

Содержание PWAP125

Страница 1: ...Installation Operation Maintenance Manual 01773 531531 I enquires bowerselec co uk I www bowerselec co uk 2021 Cast Resin Earthing Transformers...

Страница 2: ...Tel 01773 531531 enquires bowerselec co uk www bowerselec co uk Bowers Group of Companies are proud to be members of 2...

Страница 3: ...6 3 WORKING TEMPERATURE 6 4 VENTILATION 6 4 1 NATURAL FORCED VENTILATION OF THE INSTALLATION ROOM 6 4 2 FORCED VENTILATION OF THE TRANSFORMER 6 5 INSULATION DISTANCES 6 6 SAFETY DISTANCE 6 7 TIGHTENIN...

Страница 4: ...USE AND MAINTENANCE MANUAL EN APPEND 1 0 REFERENCE STANDARDS 2 0 RATING PLATE 3 0 LIST OF COMPONENTS AND ACCESS 4 0 IMPORTANT NOTICE 5 0 RECEIVING HANDLING AND STORIN 5 1 RECEIVING 5 2 HANDLING 5 3 S...

Страница 5: ...nufactured in Conformity with the latest IEC standards currently in force unless specifically agreed otherwise Directive 2004 108 EC Electromagnetic compatibility directive IEC 60076 11 Ed I 2004 05 P...

Страница 6: ...e EU IMPORTANT Descriptions and drawings presented in this manual may differ in aspect from the design delivered They are provided for reference only and are subject to change without notice 2 IEC6007...

Страница 7: ...ATE 3 0 LIST OF COMPONENTS AND ACCESS 4 0 IMPORTANT NOTICE 5 0 RECEIVING HANDLING AND STORIN 5 1 RECEIVING 5 2 HANDLING 5 3 STORAGE 6 0 INSTALLATION 6 1 SITE PREPARATION 6 2 STANDARD INSTALLATION CO 6...

Страница 8: ...mer it is necessary to carry out the following checks Check the package and fastenings for signs of damage which might have occurred during shipping Check the transformer its parts and accessories for...

Страница 9: ...d with Four 4 Lifting eyes for slings and shackles Lift with a maximum angle of 60 between the slings INSTALLATION USE AND MAINTENANCE MANUAL EN 60 MAXIMUM HANDLING e commissioning make sure that the...

Страница 10: ...UMIDITY IT IS RECOMMENDED TO USE LOCAL HEATERS AND OR SILICA GEL MOISTURE ABSORBERS THE STORAGE TEMPERATURE MUST NOT BE LOWER THAN 25 C 5 3 STORAGE The transformer must be stored in a sheltered clean...

Страница 11: ...nnections inspection and maintenance Adequate natural ventilation circulation of free cooling air Minimum electrical clearance in line with the local safety standards Special attention should be paid...

Страница 12: ...necessary to provide suitable ventilation The working temperature of the transformer depends on its insulation and climatic class as per IEC 60076 11 Table 2 Insulation classes 6 2 STANDARD INSTALLATI...

Страница 13: ...nditions and to prevent the transformer from exceeding its temperature limits it may be necessary to install air louvres in the installation room The air louvres must be located on 2 opposite walls on...

Страница 14: ...RAGE 6 0 INSTALLATION 6 1 SITE PREPARATION 6 2 STANDARD INSTALLATION CO 6 3 WORKING TEMPERATURE 6 4 VENTILATION 6 4 1 NATURAL FORCED V INSTALLATION ROOM 6 4 2 FORCED VENTILATION 6 5 INSULATION DISTANC...

Страница 15: ...the active parts of the transformer surrounding metal elements and ancillary devices according to IEC 60076 3 standard Table 4 shows the minimum insulation clearances to be respected INSTALLATION USE...

Страница 16: ...lectricals Ltd Heanor Gate Road Telephone 01773 531531 24 hou E mail enquiries bow CAST RESIN TRAN Installation Ope Maintenance M 17 Insula oltage kV Nominal voltage at industrial frequency kV Atmosph...

Страница 17: ...LV MV and earth points must be carried out respecting minimal insulation clearances section and position of the cables Thelockingandgrippingofallelectricalconnections andmechanicalfastenings must be p...

Страница 18: ...Y BLOWING DRY COMPRESSED AIR AND WIPING THEM WITH A DRY CLOTH TO ELIMINATE ALL DUST AND CONDENSATION BEFORE CONNECTING THE TRANSFORMER 19 Bowers Electricals Ltd Heanor Gate Road Heanor Derbyshire DE75...

Страница 19: ...D 1 0 REFERENCE STANDARDS 2 0 RATING PLATE 3 0 LIST OF COMPONENTS AND ACCESS 4 0 IMPORTANT NOTICE 5 0 RECEIVING HANDLING AND STORIN 5 1 RECEIVING 5 2 HANDLING 5 3 STORAGE 6 0 INSTALLATION 6 1 SITE PRE...

Страница 20: ...ceed according to the following instructions Disconnect the unit from the mains on both medium and low voltage and connect it to the ground Connectthetappingplatesinthemostsuitablepositionaccordingtot...

Страница 21: ...system according to the thermal protection relay manual Re connect the transformer to the supply 6 13 1 MV WINDING ADJUSTMENT ON SINGLE VOLTAGE If after energizing the primary side of the transformer...

Страница 22: ...ase of two primary voltages e g 10 20 kV adjustment is required on both parts of the winding The voltages variation is obtained by putting the windings in line or parallel as shown in Figure 16 Figure...

Страница 23: ...scheme Bowers Electricals Ltd Heanor Gate Road Heanor Derbyshire DE75 7GX Telephone 01773 531531 24 hours Fax 01773 716171 E mail enquiries bowerselec co uk www bowerselec co uk Figure 17 PTC scheme 7...

Страница 24: ...our 4 PT100 sensors Temperature of pre alarm ventilation alarm and tripping as well as the mode of work automatic or manual is set in the menu The device can display temperature in each channel at any...

Страница 25: ...ween the windings must be completely free of any obstructions to prevent over heating 2 3 Check of tightening of the MV and LV connections voltage tap changer links and of bolts yoke and spacer blocks...

Страница 26: ...loading and short circuit protection and tripping of the corresponding automatic switch This check should be carried out preferably by means of suitable equipment that allows simulating a real damage...

Страница 27: ...fied and properly trained personnel equipped with all necessary protection devices according to local regulations should perform such works or inspections Whilst Bowers Electricals Ltd are NOT respons...

Страница 28: ...due to loosening of the tightening bolts Tighten the bolts of the core according tightening torque See Paragraph 6 7 2 Actuation of the protection relay Alarm or Tripping Check and compare the current...

Страница 29: ...Electricals Ltd if the noise persists after a few hours Poor electrical or sensor contacts Poor or insufficient room ventilation Check clean and if necessary tighten all sensor contacts Check the roo...

Страница 30: ...act Bowers Electricals Ltd 6 Insulation failure Presence of dust or dirt on the coils Check the coils for any visible damage Continuous overload Check load and compare with the rating plate Mechanical...

Страница 31: ...24 hours E mail enquiries bowerselec co uk www bowerselec co uk Registered at the above address in England Company No 1955004 VAT Ref 416361371 Tel 01773 531531 enquires bowerselec co uk www bowersel...

Страница 32: ...el 01773 531531 enquires bowerselec co uk www bowerselec co uk Installation Operation Maintenance Manual 01773 531531 I enquires bowerselec co uk I www bowerselec co uk Cast Resin Earthing Transformer...

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