Bowers PWAP125 Installation, Operation & Maintenance Manual

Cast resin & earthing transformers

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Cast Resin

Earthing Transformers

Installation, Operation

& Maintenance Manual

2021

01773 531531

enquires@bowerselec.co.uk

www.bowerselec.co.uk

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Summary of Contents for Bowers PWAP125

Page 1 Cast Resin & Earthing Transformers Installation, Operation & Maintenance Manual 2021 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk...
Page 2 Bowers Group of Companies are proud to be members of: Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk...
Page 3 CONNECTIONS 6.8 – VISUAL INSPECTION 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 Bowers Electricals Ltd, Heanor Gate Road E-mail: enquiries@bowerselec.co.uk Telephone: 01773 531531 (24 hou www.bowerselec.co.uk...
Page 4 6.4.2 – FORCED VENTILATION 6.5 – INSULATION DISTANCES 6.6 – SAFETY DISTANCE 6.7 – TIGHTENING TORQUE FOR EL CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 5: Reference Standards
INSTALLATION, USE AND MAINTENANCE MANUAL 1. REFERENCE STANDARDS CAST RESIN TRAN Cast resin transformers by Bowers Electricals Ltd, are designed and manufactured in Conformity with the latest IEC standards currently in force (unless specifically agreed otherwise) Directive 2004/108/EC – Installation, Ope Electromagnetic compatibility directive.
Page 6: List Of Components And Accessories
INSTALLATION ROOM required, it can be equipped with other ancillary devices. 6.4.2 – FORCED VENTILATION Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX 6.5 – INSULATION DISTANCES IMPORTANT: Descriptions and drawings presented in this manual may Telephone: 01773 531531 (24 hours) Fax: 01773 716171 6.6 –...
Page 7 STANDARD COMPONENTS AND ACCESSORIES 6.3 – WORKING TEMPERATURE 6.4 – VENTILATION Steel frames Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Earthing links M12 6.4.1 – NATURAL / FORCED V Telephone: 01773 531531 (24 hours) Fax: 01773 716171...
Page 8: Important Safety Notice
8 to 24 hours before unpacking the transformer, so that CONNECTIONS it reaches the temperature of the room. 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 9 5 days from the dispatch note, it will be assumed that the transformer delivery was flawless. Installation, Ope Bowers Electricals Ltd cannot be held responsible for any incidents Maintenance M HANDLING taking place during installation or service, unless conducted by us.
Page 10 PUSHING OR PULLING THE COILS AND CONNECTIONS. PUSHING OR PULLING THE COILS AND CONNECTIONS. 1.0 – REFERENCE STANDARDS Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX 2.0 – RATING PLATE Telephone: 01773 531531 (24 hours) Fax: 01773 716171 3.0 –...
Page 11: Installation
6.4.2 – FORCED VENTILATION 6.5 – INSULATION DISTANCES Additionally, Bowers Electricals Ltd, offer customised low noise transformers, with very low magnetic induction for installa- Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX...
Page 12 IEC 6.7 – TIGHTENING TORQUE FOR EL 60076-11: CONNECTIONS INSULATION CLASS RANGE TEMPERATURE Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX From -25 to 120°C 6.8 – VISUAL INSPECTION Telephone: 01773 531531 (24 hours) Fax: 01773 716171 E-mail: enquiries@bowerselec.co.uk...
Page 13 CONNECTIONS = 1,1 x A 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 14 (Figure 10) specially designed to ensure proper air circulation inside each 5.3 – STORAGE It is recommended to use a forced cooling system designed by Bowers Electricals Ltd, (Figure 10) coil of a three- or single-phase transformer. Forced ventilation can be •...
Page 15 INSTALLATION, USE AND MAINTENANCE MANUAL 3.0 – LIST OF COMPONENTS AND ACCESS 4.0 – IMPORTANT NOTICE 5.0 – RECEIVING, HANDLING AND STORIN Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX 5.1 – RECEIVING Power range Model Telephone: 01773 531531 (24 hours)
Page 16 HAVE TO BE CONSIDERED A PART UNDER VOLTAGE. have to be considered a part under voltage. 5.3 – STORAGE Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX 6.0 – INSTALLATION Telephone: 01773 531531 (24 hours) Fax: 01773 716171 E-mail: enquiries@bowerselec.co.uk...
Page 17 6.3 – WORKING TEMPERATURE Bolts Mechanical connection Electrical connection 6.4 – VENTILATION 6.4.1 – NATURAL / FORCED V Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX INSTALLATION ROOM Telephone: 01773 531531 (24 hours) Fax: 01773 716171 E-mail: enquiries@bowerselec.co.uk 6.4.2 –...
Page 18 Before energizing the unit, an inspection should be carried out in order to guarantee a proper installation and connection of 6.4.1 – NATURAL / FORCED V the transformer. INSTALLATION ROOM Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 The following steps must be carefully fulfilled: 6.4.2 –...
Page 19 6.4.1 – NATURAL / FORCED V • LV and MV terminals / ground >= 10 MΩ INSTALLATION ROOM If the measured values are much lower, the transformer must by dried. If necessary please contact Bowers Electricals Lim- 6.4.2 – FORCED VENTILATION ited.
Page 20 • Connect the tapping plates in the most suitable position according to the Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk feeding voltage; Bowers Electricals Ltd, Heanor Gate Road • Re-connect the transformer to the mains. Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 21 6.6 – SAFETY DISTANCE 6.7 – TIGHTENING TORQUE FOR EL CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou Figure 16 – Tapping regulation with double voltage E-mail: enquiries@bow...
Page 22: Over Temperature Protection
6.1 – SITE PREPARATION • Electronic controller for PTC sensors Bowers Electricals Ltd, offer two types of control and protection devices for monitoring of the transformer’s temperature and 6.2 – STANDARD INSTALLATION CO • Electronic controller for PT100 sensors tripping: 6.3 –...
Page 23 Figure 18. CONNECTIONS matic or manual) is set in the menu. The device can display Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX 6.8 – VISUAL INSPECTION Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX...
Page 24: Overvoltage Protection
The surge arresters characteristics depend on the transformer insulation level and the parameters of the distribution system. CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 25: Maintenance
6.5 – INSULATION DISTANCES of bolts (yoke and 6.6 – SAFETY DISTANCE spacer blocks). 6.7 – TIGHTENING TORQUE FOR EL CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road Telephone: 01773 531531 (24 hou E-mail: enquiries@bow...
Page 26 CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 Bowers Electricals Ltd, Heanor Gate Road E-mail: enquiries@bowerselec.co.uk Telephone: 01773 531531 (24 hou www.bowerselec.co.uk...
Page 27 The Manufacturer is not responsible for the installation of the transformer. Whilst Bowers Electricals Ltd, are NOT responsible for the installation of the transformer, If a problem persists or is not Some possible problems are listed in Table 10 with suggested solutions. If 1.0 –...
Page 28 CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 Bowers Electricals Ltd, Heanor Gate Road E-mail: enquiries@bowerselec.co.uk Telephone: 01773 531531 (24 hou www.bowerselec.co.uk...
Page 29 CONNECTIONS contact the Manufacturer. 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 Bowers Electricals Ltd, Heanor Gate Road E-mail: enquiries@bowerselec.co.uk Telephone: 01773 531531 (24 hou www.bowerselec.co.uk...
Page 30 6.7 – TIGHTENING TORQUE FOR EL CONNECTIONS 6.8 – VISUAL INSPECTION Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX Telephone: 01773 531531 (24 hours) Fax: 01773 716171 Bowers Electricals Ltd, Heanor Gate Road E-mail: enquiries@bowerselec.co.uk Telephone: 01773 531531 (24 hou www.bowerselec.co.uk...
Page 31: Warranty
1.0 – REFERENCE STANDARDS 2.0 – RATING PLATE SUPPLIERS DETAILS 3.0 – LIST OF COMPONENTS AND ACCESS Bowers Electricals Ltd, Heanor Gate Road, Heanor, Derbyshire DE75 7GX. 4.0 – IMPORTANT NOTICE Telephone: 01773 531531 (24 hours) 5.0 – RECEIVING, HANDLING AND STORIN E-mail: enquiries@bowerselec.co.uk...
Page 32 Cast Resin & Earthing Transformers Installation, Operation & Maintenance Manual Tel: 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk 01773 531531 enquires@bowerselec.co.uk www.bowerselec.co.uk...

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