TRANSFORMERS AFTERMARKET

TAPCHANGER RETROFITS

02

TRANSFORMERS AFTERMARKET

GLOBAL AFTERMARKET SUPPORT BRUSH Transformers is globally renowned for the quality of its products, innovation and service. Our markets include the utility, oil, petrochemical, coal, steel and rail industries worldwide. We focus on working with our clients to provide solutions tailored to meet their exact requirements. BRUSH Transformers has a dedicated Aftermarket service division to provide all services to all makes of transformers, including but not limited to: BRUSH Transformers (BTL), South Wales Transformers (SWT) and Hawker Siddeley Power Transformers (HSPT). These services include; n Installation, service & commissioning

n Inspections

nM  aintenance programmes and service

nR  epairs on site or in our dedicated Loughborough facility

nS  pares

nC  ooler replacements

nH  ealth checks

nT  ransformer up rating

nO  il analysis

nT  ransformer relocation.

BRUSH Transformers Aftermarket are totally committed to providing the best possible service to all of its customers, offering a complete after sales service, reinforced by quality assurance and a helpful, willing service team. Through approved external third party companies and site teams, we are able to offer this same level of first-rate service across the globe, ensuring that we are able to reach every BRUSH Transformer, no matter where in the world it is situated.

CONTENTS 04 BRUSH TAPCHANGERS

10 WHY RETROFIT?

06 AT TAPCHANGER

12 TAPCHANGER SERVICES

08 AE TAPCHANGER

14 SERVICE CENTRES

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TRANSFORMERS AFTERMARKET

BRUSH TAPCHANGERS

BRUSH Transformers are proud to be one of the very few transformer manufacturers that are able to supply its own range of tapchangers. BRUSH Transformers are able to offer a complete range of tapchangers that are easy to maintain, fully automatic or manual operation and feature the much coveted bi-directional power flow which can come as standard on any new panel and more importantly, be retrofitted onto almost any third party transformer, replacing; n Ferranti

n Crompton Parkinson

n AEI Models

n BRUSH

n Fuller Our experienced site teams are able to completely retrofit these tapchangers with very minimal disruption to the network. We guarantee peace of mind for our customers, knowing that you will be receiving a quality product that outshines all others. This service will include the following steps, all carried out by our helpful Aftermarket team; n Pre installation site visit n Planning and methodology (i.e. cranes, heavy haulage ) n Risk assessment and method statements n Disconnecting of the old unit and removal

n Fitting of a bespoke adaptor throat fabrication (Joggle box) n Fitting and connection of a new BRUSH MKIII AT Tapchanger n Re-filling with new oil and commissioning

The retrofit option can greatly save money due to reduced yearly maintenance on older, existing tapchangers.

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TRANSFORMERS AFTERMARKET

AT TAPCHANGER

The AT range of single compartment units with high-speed resistor transition is designed for three-phase systems with voltages of 44kV and 66kV line end or 132kV neutral end and nominal rated current of 300A. A maximum of 17 tapping positions (16 steps) is possible for linear regulation and 33 tapping positions (32 steps) for reversing of course/fine regulation. The AT tapchanger is designed such that power flow can be handled in either direction at full-rated current. The AT is a flange-mounted tapchanger where the oil in the switch compartment is kept separate at all times from the oil in the main transformer. n Compact n Linear, reversing or coarse/fine versions n Suitable for 52kV, star or delta windings n 400A version (linear only) n Suitable for 145kV star winding (neutral end only) n Single-phase version available n Vertically-mounted option also available n Manufactured in accordance with IEC 60214 and also complies with many other national and international standards. n Key features of AT and AE tapchangers n Compact n Bi-directional power flow n High Speed Resistor on-load selector switch n Ease of maintenance n Low oil content n Up to 17 positions (linear) or 33 positions (reverse or coarse/fine) n Fully automatic or manual operation.

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TRANSFORMERS AFTERMARKET

AE TAPCHANGER

The AE series on-load tapchangers are built on the successful results of the design of the AT range. The AE uses many common parts from the AT including the complete drive mechanism. This range has a maximum of 17 tapping positions (16 steps) and is possible for linear regulation and 33 tapping positions (32 steps) for reverse or course/fine regulation. The equipment may be used to regulate three-phase transformers designed for system voltages of 33kV and 66kV at any position in the winding. The AE may also operate on transformers designed for 132kV earthed neutral three-phase systems regulating at the neutral end of the winding. The maximum current rating is 500A, with overload capability in accordance with IEC 60354 and IEC 60076-7. n 500A current rating n Suitable for 33kV or 66kV systems, line or neutral end n Suitable for 132kV systems (neutral end only) n Maximum 650kVA breaking capacity n Designed in accordance with IEC 60214 and also complies with many other national and international standards

Benefits of the AT, ATV, and AE on-load tapchangers n Lower overall maintenance times and costs to the end user n Separate tapchanger oil ensures 100% accurate D.G.A of transformers n Can easily be housed in noise enclosures n Retrofit tapchangers more easily accommodated n Better for anti-tracking surfaces.

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TRANSFORMERS AFTERMARKET

WHY RETROFIT?

Unfortunately, all things get older and with this, problems arise and issues are formed. However, there is an effective, low-cost solution that prolongs the life of Transformers: Retrofits. Retrofits have the ability to greatly improve your transformers performance and longevity, giving a worry free solution for many years to come. In this case, replacement of tapchangers. Either original BRUSH products or third party products can be replaced with the BRUSH AT or AE Tapchanger. There are many reasons for retrofitting; n Control scheme upgrade n Parts are hard to find n OLTC in poor overall condition n OLTC design obsolete

To counteract these reasons, we strongly suggest a retrofit. Retrofitting has a great many benefits including; n Retrofitting can be done at a fraction of the cost of full replacements n Greatly reduced lead times compared to new transformers n Minimal distruption to the network n Latest tapchanger technology n Cost effective parts n Full reverse power flow capability n Increased network reliability - Reduced outages nLow oil quantities. n Remote control panels can be supplied to suit.

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TRANSFORMERS AFTERMARKET

TAPCHANGER SERVICES

BRUSH offers a team of fully skilled service engineers to provide full Aftermarket service available on site or in our dedicated repair shop, 24/7. SPARES Spare parts are available for all modern and obsolete models of on-load tapchangers and off-circuit tap selectors. All spare parts are genuine parts manufactured to the highest degree of quality, from original drawings, materials and tooling. FACTORY REPAIR WORK In addition to manufacturing a full range of modern on-load tapchangers and off-circuit tap selectors. BRUSH Transformers Aftermarket have a fully equipped repairs department, which specialises in the repair and refurbishment of old tapchangers. We will arrange to remove the faulty equipment from site, return it to the factory, repair or refurbish as required, return to site and install, test and commission as requested. Main features include: n Maintenance training

n Spare parts for tapchangers

n Routine maintenance

n Minor repair or overhaul

n Engineers site visit for assessment, inspection and reports on the tapchanger

n Complete tapchanger overhaul and repair at our factory

n Emergency repairs

n Retrofitting modern units to replace older tapchangers allowing reduced maintenance costs for the future.

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TRANSFORMERS AFTERMARKET

SERVICE CENTRES

COVERING EUROPE, AMERICAS & ASIA BRUSH AFTERMARKET, NOTTINGHAM ROAD, LOUGHBOROUGH, LEICESTERSHIRE LE11 1EX, UNITED KINGDOM T + 44 1509 611511 WWW.BRUSH.EU COVERING AFRICA KBK POWER SOLUTIONS KBK POWER SOLUTIONS PO BOX 145, UMLAAS ROAD, 3730, RSA T + 27 (0) 33 251 6107 WWW.KBKPS.CO.ZA

COVERING NEW ZEALAND & THE PACIFIC RIM PEAK POWER PEAK POWER SERVICES LTD P O BOX 1207, QUEENSTOWN, NZ T + 03-450 9007 WWW.PEAKPOWER.CO.NZ COVERING AUSTRALIA ENG-COM ENG-COM PTY LTD 92 ORIENT AVENUE, MITCHAM, VICTORIA, 3132 AUSTRALIA T + 61 3 9872 5229 WWW.ENGCOM.COM.AU

BRUSH GROUP HQ NOTTINGHAM ROAD, LOUGHBOROUGH, LEICESTERSHIRE, LE11 1EX, UNITED KINGDOM T + 44 1509 611511 E [email protected]

TRANSFORMERS AFTERMARKET T + 44 1509 612612 E [email protected]

www.brush.eu