Redwing Technologies
REDWING TECHNOLOGIES

















 

REFERENCES

 

  TRANSFORMERS  

  Tamini  

1.     Feralloys Machadodorp Plant (Engineers - Bateman Titaco)
Supply, transport to site and installation of 4 x 18 MVA, 33 / 0,23-0,43 kV single-phase furnace transfomers.             

2.     Zimasco (Zimbabwe) (Engineers - Bateman Titaco)
Supply, transport to site and installation of 4 x 10 MVA, 33 / 11 / 0,2-0,376 kV single-phase furnace transformers.

3.     Anglo Platinum - Waterval Slag Cleaning furnace
Supply, transport to site and installation of 4 x 10 MVA, 6,6 / 0,14-0,36 kV single-phase furnace transformers.

4.     Anglo Platinum - Polokwane Smelter
Supply, transport to site, erection and commissioning of 4 x 56 MVA, 33 / 0,29-0,8 kV single-phase furnace transformers.

5.     Saldanha Steel
Supply, transport to site and installation of 1 x 138 MVA, 33 / 0,59-1,039 kV three-phase furnace transformer.

6.     Sentrachem - Newcastle
Supply, transport to site and installation of 1 x 38 MVA, 132 / 0,086-0,3 kV three-phase furnace transformer.

7.     Assmang Machadodorp
Supply, transport to site and installation of 2 x 33 MVA, 33 / 0,12-0,37 kV three-phase furnace transformer.

8.     Scaw Metals
Supply, transport to site and installation of 2 x 7,9 MVA, 6,6 / 0.11-0.275 kV three-phase furnace transformer.

9.     Ferrometals - Witbank (Engineers - Bateman Titaco)
Supply, transport and delivery to site 1 x 12,5 MVA, 33 / 6,6 kV three-phase power transformer.

10.   Marqott Power Projects
Supply and delivery to site 1 x 10 MVA, 60 / 15 kV and 1 x 5 MVA, 15 / 6 kV three-phase power transformers.

11.   Tubatse Ferrochrome
Supply, transport to site and installation 1 x 12,33 MVA, 33 / 0,4-0,2 kV three-phase furnace transformer.

12.   ISCOR - Vereeniging
Supply, transport to site, installation and commissioning 1 x 75 / 84 MVA, 33 / 0,9-0,509 kV single-phase furnace transformer.

13.   Xstrata - Lion Project
Supply, transport to site, installation and commissioning 7 x 21 MVA, 33 / 0,462-0,230 kV single-phase furnace transformers.

14.   Davsteel/Cape Gate
Supply, transport to site, installation and commissioning 1 x 65 / 78 MVA, 33 / 0,9-0,46 kV three -phase furnace transformer.

15.   Samancor
Supply and deliver 3 x 12,3 MVA 33 / 0,22-0,43 kV furnace transformer

16.   Mossgas
Supply and deliver 1 x 10 MVA 11 / 0,21-0,12 kV furnace transformer

17.   Iscor Pretoria
Supply and deliver 1 x 20 MVA 30 / 0,34-0,21 kV furnace transformer

18.   Iscor
Supply and deliver 1 x 30 MVA 11 / 0,65-0,25 kV furnace transformer

19.   Voest Alpine
Supply and deliver 1 x 90 MVAr power reactor

20.   Columbus
Supply and deliver 2 x 90 MVA 33 / 0,99-0,45 kV furnace transformer

21.   Samancor
Supply and deliver 3 x 12,3 MVA 33 / 0,4-0,2 kV furnace transformer

22.   Siemens
Supply and deliver 1 x 120 MVAr power reactor

23.   Tagliaferri
Supply and deliver 1 x 60 MVAr power reactor

24.   Cato Ridge
Supply and deliver 2 x 22 MVA 33 / 0,236-0,115 kV furnace transformer

25.   Saldanha Steel
Supply and deliver 1 x 138 MVA 33 / 1,030-0,591 kV furnace transformer

26.   Saldanha Steel
Supply and deliver 1 x 39,6 MVA 33 / 0,52-0,26 kV furnace transformer

27.   Highveld Steel
Supply and deliver 2 x 45,5 MVA 33 / 18,9-11 kV + 18,5 / 0,268 kV furnace transformer

28.   ASA Metals
Supply and deliver 3 x 11 MVA 33 / 0,37-0,18 kV furnace transformer

29.   Davsteel
Supply and deliver 1 x 11,2 MVAr power reactor

30.   Tata Ferrochrome
Supply and site inspection of 7 x 12,67 MVA, 33/0,37-0,19 kV single-phase furnace transformer

31.   Assmang - Cato Ridge
Supply, transport to site, erection and commissioning of 3 x 12 MVA 33/0,28-0,1 kV furnace transformer

32.   Zimasco, Zimbabwe
Supply and delivery of 3 x 10 MVA, 33/0,189-0,376 kV single-phase furnace transformer

33.   RBM
Supply, transport to site, erection and commissioning of 2 x 45 MVA 33/1,6-0,35 kV

34.   Anglo Platinum Waterval Smelter
Supply 4 x 10 MVA, 6,6/0,36-0,14 kV

35.   Anglo Platinum, Mortimer Smelter
Supply, transport to site, erection and commissioning of 4 x 17 MVA 6,6/0,36-0,14 kV

36.   Tubatse Ferrochrome
Supply, transport to site, erection and commissioning of 6 x 12,33 MVA, 33/0,4-0,2 kV

37.   Tubatse Ferrochrome
Supply, transport to site, erection and commissioning of 7 x 15,33 MVA, 33/0,4-0,2 kV

38.   RBM
Supply, transport to site, erection and commissioning of 1 x 45 MVA 33/1,6-0,35 kV

39.   RBM
Supply, transport to site, erection and commissioning of 2 x 45 MVA 33/1,6-0,35 kV

40.   Cape Gate
Supply, transport to site, erection and commissioning of 1 x 20 MVA 33/11 kV power transformer

41.   Cape Gate
Supply, transport to site, erection and commissioning of 1 x 48/80 MVA 83,6/33 kV power transformer

42.   Anglo Platinum Mortimer Smelter
Supply, transport to site, erection and commissioning of 4 x 17 MVA, 6,6/0,4-0.27 furnace transformer

43.   RBM
Supply, transport to site, erection and commissioning of 1 x 12 MVA 36/12 kV power transformer

44.   BHPBilliton Meyerton
BHPBilliton Meyerton

45.   Cape Gate
Supply, transport to site, erection and commissioning of 1 x 48/80 MVA 83,6/33 kV power transformer

46.   SACC Newcastle
Supply and transport of 1 x 25 MVA 132/0,300-0,86 kV three-phase furnace transformer

47.   RBM
Supply, transport to site, erection and commissioning of 3 x 45 MVA 33/1,6-0,35 kV

48.   First Quantum Kansanshi Mine Zambia (Engineers Metix)
Supply, supervision of erection and commissioning of 4 x 8 MVA 33/0,35-0,15 kV furnace transformer.

49.   RBM
Supply, transport to site, erection and commissioning of 2 x 45 MVA 33/1,6-0,35 kV furnace transformer

50.   Glencore Lion
Supply and delivery of 2 x 22 MVA , 33/0,462-0,230 kV furnace transformer

51.   Dedisa Power Station - Port Elizabeth (Engineers Fata Italy)
Supply, transport to site, erection and commissioning of 2 x 200 MVA 15.75/400 kV generator transformer

52.   Avon Power Station - Shakaskraal (Engineers Fata Italy)
Supply, transport to site, erection and commissioning of 4 x 200 MVA 15.75/275 kV generator transformer

53.   Glencore Lion
Supply, deliver, erection and commissioning 6 x 21MVA, 33/0,462-0,230kV single - phase furnace transformer

54.   Sakura Malaysia (Metix)
Supply, deliver, erect and commission 7 x 27MVA, 33/0.416 - 0.230kV single - phase furnace transformer

55.   Mt. Coffee Liberia (Tamini)
Commissioning 2 x 28MVA, 66/11kV 3 - phase power transformer

56.   Franco Tosi Inga DRC (Tamini)
Supervise repair and commission 1 x 65MVA 11/234kV step-up transformer.

57.   RMT GmbH Senegal (Tamini)
Supervise erection and cold commissioning 1 x 25MVA 90/30kV transformer

58.   Glencore Mopani Mine Zambia (Tamini)
Supervise repair and commission 1 x 12MVA furnace transformer.

59.   Anglo Platinum (GLPS)
Repair, test, erect and transport 4 x 10MVA furnace transformers to Unki mine Zimbabwe.

  VTD  

1.   Ital Service Angola
Supply and delivery of 630 kVA and 400 kVA 6/0.4 kV distribution transformer

2.   ABB South Africa
Supply and delivery of 1 x 8,8 MVA 11/0,298 kV power transformer

3.   Transnet
Supply and delivery of 2 x 3.5 MVA 22/1.22 kV traction transformer

4.   Pyromet South Africa
Supply and delivery of 1 x 25 MVA 33/11 kV power transformer

5.   SAG (Germany) Mozambique
Supply and delivery of 1 x 10 MVA 66/33/10 kV power transformer

6.   RBM (Engineers Hatch)
Supply and delivery of 1 x 12 MVA 33/11 kV power transformer

7.   RBM
Supply, erection and commissioning of 2 x 2 MVA; 2 x 5 MVA; 1 x 1.25 MVA distribution transformer

8.   PRASA (SPM)
Supply and deliver 8 x 5MVA 88kV and 33kV traction transformer

 

 

  CONSULTING DESIGN AND PROJECT MANAGEMENT  

  MINING  

1.   Blyvooruitzicht gold mine
Project management : 1 x 5,5 MVAr, 22 kV power factor correction bank; 1 x 3,5 MVAr, 22 kV power factor correction bank; 2 x 2 MVAr, 6,6 kV power factor correction banks; 2 x 3,5 MVAr, 6,6 kV power factor correction banks.

2.   Doornfontein gold mine
Tariff impact study and electrical system study, PFC design, specification and project management : 2 x 5 MVAr, 5th harmonic filter banks; 2 x 3 MVAr, 5th harmonic filter banks; 1 x 3 MVAr, power factor correction bank.

 

Doornfontein 6,6 kV harmonic filters

3.   Forzando Mine (AVMIN)
Feasibility study in respect of power factor correction/harmonic filtering requirements.

4.   Beeshoek Mine (AVMIN)
Electrical system study in respect of the effectiveness of existing PFC, design and specification of additional PFC requirements, project management : upgrading of an existing 22 kV 2,2 MVAr capacitor bank to 4,8 MVAr 5th harmonic filter.

5.   Blackrock Mine (AVMIN)
Electrical system study in respect of the effectiveness of existing PFC, design and specification of additional PFC requirements, project management : upgrading of the existing 22 kV capacitor bank installation.

6.   Afrikaner Lease Gold Mine
Electrical system study, 6,6 kV PFC design and specification.

7.   Kinross Gold Mine
Electrical system study in respect of the effectiveness of existing PFC/harmonic filter installation consisting of six 6,6 kV harmonic filter banks, together with recommendations to improve and optimise this PFC installation.

8.   Thabazimbi Iron Ore (Buffelshoek)
Electrical system study in respect of 22 kV PFC requirements and PFC design/specification.

9.   Thabazimbi Iron Ore
Investigation into problems experienced with failure and mal-operation of LV reactive power compensation on P&H 2300 shovels, together with recommendations in respect of remedial measures to improve the shovel supply voltage regulation.

10.   Nkomati Mine (AVMIN)
Electrical system study, PFC design and specification, project management : one 22 kV 1,8 MVAr capacitor bank, upgradeable to 5,4 MVAr 5th harmonic filter.

11.   Bikita Zimbabwe
Project management : one 6,6 kV 900 kVAr pole mounted capacitor bank.

12.   Buffelsfontein Gold Mine
Electrical system study, 6,6 kV PFC design and specification.

13.   East Rand Gold and Uranium Company (Ergo)
Nightsave tariff impact study. Electrical system study, 11 kV PFC design and specification, project management : 2 x 2,2 MVAr capacitor banks; 3 x 2,2 MVAr capacitor banks; 1 x 3,6 MVAr capacitor bank; 1 x 2,7 MVAr 5th harmonic filter bank; 1 x 7,2 MVAr 5th harmonic filter bank.

14.   St Helena Gold Mine
Nightsave tariff impact study. Electrical system study, 6,6 kV PFC design and specification.

15.   J.R. Mines
Electrical system study, 6,6 kV PFC design and specification.

16.   Arnot Colliery
Megaflex tariff impact study. Electrical system study to determine the effectiveness of existing 6,6 kV PFC together recommendations in respect of measures to optimise the PFC installations.

17.   Anglo Platinum - Union Section
Megaflex tariff impact study and evaluation of the effectiveness of existing 11 kV PFC. Recommendations in respect of tariffs and associated savings.

18.   Anglo Operations - Black Mountain No.2 Shaft
Greenfield study : Determination of the predicted shaft load demand and power factor during typical mining operations. Design and specification of required 6,6 kV PFC/harmonic filters to correct for the Shaft load and to provide harmonic filtration for the Rock and Man Winders.

19.   Palabora Mining Company
Design of remedial measures for, and improvements to, the PMC Substation reticulation network, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements, for both normal and contingency system operation.

20.   Anglo American Corporation - Konkola Copper Mines (Zambia)
Power factor correction scheme study and equipment technical specification for the Konkola, Nchanga and Nampundwe Copper Mines.

21.   Anglo American Corporation - Smelter Company (Zambia)
Power factor correction scheme study and equipment technical specification.

22.   Anglo American Corporation - Konkola Copper Mines (Zambia)
Detailed and comprehensive protection coordination study of the complete electrical networks at Nchanga, Konkola and Nampundwe mines and Smelter Co.

23.   Tati Nickel Mine (Botswana)
Comprehensive electrical system study for the overall new project, including load flow and fault level studies, 11 kV and 3,3 kV motor starting studies, design check of power factor correction already specified.

24.   Driefontein Mine - Goldfields of SA
System evaluation of the effectiveness of existing 6,6 kV PFC at the East 2#, West 5# and West 6#. Recommendations in respect of PFC optimisation and associated tariff savings, implementation of the proposed recommendations.

25.   Driefontein Mine West Gold Plant - Goldfields of SA
System evaluation of the capability of the Eskom 6,6 kV supply arrangement for planned load growth together with the effectiveness of existing 6,6 kV PFC. Recommendations in respect of PFC optimisation, implementation of the proposed recommendations.

26.   Assmang - Beeshoek Mine
Installation of radio linked energy management system.

27.   President Steyn No.3 Shaft
Design and specification of 6,6 kV PFC and harmonic filter installation. Project management : 3 MVAr 5th harmonic filter bank; 2 MVAr capacitor bank.

28.   BCL Mine (Botswana)
Comprehensive system study of the capability of the existing 220/66/11 kV supply arrangement to provide an adequate capacity for existing and future 2006 mine loading. Recommendations in respect of remedial measures for, and improvements to, the BCL 220/66/11 kV supply reticulation network, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements, for both normal and contingency system operation. Design and specification of 2 x 12MVAr, 1 x 6MVAr and 1 x 65MVAr 5th harmonic filters.

29.   Mimosa Mine (Zimbabwe) - Phase III expansion
Complete underground reticulation for the new Phase III expansion, including initial feasibility design and costing for budget purposes, detailed design, specification and full project management. Project included nine 11 kV/550V skid mounted substations, surface compressor house and fans, electrical supply to main conveyor and primary crusher.Project completion - 3rd quarter 2002

30.   Driefontein Mine - No.1 Shaft East
Comprehensive system study of the capability of the existing 6,6 kV supply arrangement to provide an adequate capacity for existing and future mine loading. Recommendations in respect of remedial measures for, and improvements to, the 6,6 kV supply, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements. Comprehensive fault level and Protection Coordination study in order to verify switchgear, cable ratings and protection grading. Recommendations in respect of improvements to the 6,6 kV supply arrangement.

31.   Driefontein Mine - No.5 Shaft East
Comprehensive system study of the capability of the existing 6,6 kV supply arrangement to provide an adequate capacity for existing and future mine loading. Recommendations in respect of improvements to the 6,6 kV supply, and requirement for a 5th Eskom 20MVA supply transformer, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements.

32.   Palabora Mining Company
Evaluation of the existing loading and harmonic conditions at the Palamin Substation taking into account future load predictions, investigation into recent capacitor bank failure, determination of voltage conditions at the Bank Substation during operation of the 5MW cycloconverter Rock Winders. Determination of harmonic loading of 5MW cycloconverter Rock Winders.

33.   Amandelbult Mine – No.2 Shaft
Comprehensive system study of the capability of the existing 11 kV supply arrangement to provide an adequate capacity for future mine loading. Recommendations in respect of improvements to the 11 kV supply, and requirement for a 3rd Eskom 20MVA supply transformer, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements.

34.   Amandelbult Mine
Evaluation of the existing loading and harmonic conditions at the 33 kV Concentrator, 11 kV Concentrator and No.1 Shaft Substation supplies.

35.   Western Platinum – Karee Mine
Measurement survey of the existing steady state and transient conditions at the 33 kV supply.

36.   Harmony Gold Mine
System evaluation of the effectiveness of existing 6,6 kV PFC. Recommendations in respect of PFC optimisation and project price for implementation of the proposed recommendations.

37.   Driefontein Mine – No.5 Shaft East
Comprehensive fault level study in order to verify switchgear and cable ratings. Recommendations in respect of improvements to the 6,6 kV supply arrangement.

38.   Harmony Gold Mine
Project management – Optimisation of existing PFC banks as recommended in our previous study.

39.   Anglo Platinum – Modikwa Mine
Design, specification, and project management of 33 kV PFC and harmonic filter installation: 6 x 12 MVAr 5th harmonic filter banks.

40.   Anglo Platinum – Waterval Smelter
Comprehensive fault level study in order to verify switchgear and cable ratings. Recommendations in respect of improvements to the 6,6 kV supply arrangement.

41.   Amandelbult Mine
Load flow analysis of the existing steady state and transient conditions of the electrical network and provide recommendations for additional predetermined loadings.

42.   Kloof Mine - 7 Shaft
Comprehensive fault level and protection device coordination study in order to verify switchgear and cable ratings. Provide protection settings giving optimum grading.

43.   Harmony - Doornkop Shaft
Comprehensive system study of the capability of the existing 6,6 kV supply arrangement to provide an adequate capacity for existing and future mine loading. Recommendations in respect of remedial measures for, and improvements to, the 6,6 kV supply, in order to ensure the network has sufficient capacity to provide an adequate electrical supply for the future load requirements. Comprehensive fault level and Protection Coordination study in order to verify switchgear, cable ratings and protection grading. Recommendations in respect of improvements to the 6,6 kV supply arrangement.

44.   ARM Gold Mine
System evaluation of the effectiveness of existing 6,6 kV PFC. Recommendations in respect of PFC optimisation and project price for implementation of the proposed recommendations.

45.   Harmony Gold Mine - Joel
PFC optimisation study and implementation of our recommendations.

46.   Kumba Resources – Thabazimbi
System study, design and specification of 22 kV harmonic filter installation.

47.   Northam Platinum
Comprehensive system study and audit of the existing PFC design. PFC optimisation and reconfiguration for the Megaflex tariff. 6,5 MVAr 2nd order damped filter, 6,5 MVAr 2nd order damped filter, 8,0 MVAr Vari-var broadband filter, 8,0 MVAr Vari-var broadband filter, 6,5 MVAr C-type 3rd order filter (for cycloconverter controlled Mill motors).

48.   Kloof 5#
Comprehensive fault level and protection device coordination study in order to verify switchgear and cable ratings. Provide protection settings giving optimum grading.

49.   Driefontein 5 W
PFC optimisation study and implementation of our recommendations.

50.   Driefontein 2 E
Comprehensive fault level and protection device coordination study in order to verify switchgear and cable ratings. Provide protection settings giving optimum grading.

51.   Avmin - Beeshoek Mine
PFC optimisation study and implementation of our recommendations. Comprehensive fault level and protection device coordination study.

52.   Harmony Gold Mine
Comprehensive audit and recommendations of various PFC banks in the Harmony group.

53.   Amandelbult Mine
Compilation of complete MV electrical network into electronic format, to facilitate future system planning and studies.

54.   Avmin - Beeshoek Mine
Appointed as client's consultant to carry out necessary QA/QC of substation project.

55.   Tati Nickel - Botswana
Comprehensive electrical system study including, database compilation, PFC, load flow and fault level studies, of the 11KV network.

56.   EHL - Western Limb Tailings
Design, specification, and project management of 6.6kV harmonic filter installation: 2 x 5 MVAr 5th harmonic filter banks.

57.   Anglo Platinum - Polokwane smelter
Inspection and report of the installed furnace transformers.

58.   EHL - Boschfontein W. Mine
Design, specification and project management of 11 kV PFC and harmonic filter installation.

59.   Avmin - Beeshoek Mine
Design, specification and project management of 22/11 KV PFC at South Mine.

60.   Xstrata Coal - South Witbank Colliery
PFC optimisation study and equipment audit.

61.   Xstrata Coal - Tavistock Colliery
PFC optimisation study and equipment audit.

62.   Elandsrand Gold Mine
Investigation into tripping of winders/ QOS study.

63.   Doornkop Gold Mine
Volt drop study.

64.   Xstrata Coal Atcom Colliery
PFC optimisation study.

65.   Elandsrand Gold Mine
Volt drop study.

66.   Xstrata Coal Boschmans Colliery
PFC optimisation study.

67.Konkola Copper Mine (Zambia)
Comprehensive on site measurements, load flow study, fault level study, PFC/harmonic study, design and specification of 11kV PFC/harmonic filtering requirements.

68.Mopani Copper Mine (Zambia)
Comprehensive on site measurements, load flow study, fault level study, PFC/harmonic study, design and specification of 11kV PFC/harmonic filtering requirements

69.Northam Platinum Mine
Fault level study, PFC/harmonic study, design and specification of 11kV PFC/harmonic filtering requirements.

70.Goldfields Beatrix Gold Mine 4#
PFC/harmonic study, design and specification of 6,6kV PFC/harmonic filtering requirements.

71.Anglo Platinum Waterval Mine - HVT
PFC/harmonic study, design and specification of 11kV PFC/harmonic filtering requirements.

72.Goldfields Driefontein Gold Mine
ETAP model, fault level study, equipment rating verification, protection coordination study and PFC / harmonic study at 11 shafts and the Gold Plant.

73.Zimasco - Zimbabwe
PFC/harmonic study, design and specification of 2 x 33kV 3rd harmonic filters.

74.DRA - Konkola North
PFC/harmonic study, design and specification of 1 x 11kV 6MVAr 2nd order damped 5th harmonic filter and 2 x 11kV standard tuned 3rd harmonic filters.

75.Harmony - Gold 1 Plant
PFC audit and remedial work to 6,6 kV capacitor banks.

76.TWP - Bakubung Mine
Comprehensive PFC/harmonic study, design, specification and adjudication of 6.6 kV PFC/harmonic filtering equipment.

77.Assore - Rustenburg Mineral Development Corporation.
PFC measurements, analysis, Tariff impact study and recommendations.

78.Sibanye Gold - Beatrix Mine
Comprehensive PFC/harmonic optimization study, design, specification, adjudication and project monitoring of 6,6 kV PFC/harmonic filtering equipment.

79.Sibanye Gold - Driefontein Mine
PFC/harmonic optimization study, design, specification, adjudication and project monitoring of 6,6 kV PFC/harmonic filtering equipment.

80.Sibanye Gold - Kloof Mine
Comprehensive PFC/harmonic optimization study, design, specification, adjudication and project monitoring of 6,6 kV PFC/harmonic filtering equipment.

81.Transalloys
Measurements, analysis and reporting on faults with the furnace measuring systems.

82.Tau Lekoa Gold Mine
Comprehensive PFC/harmonic optimization study of 6,6 kV PFC/harmonic filtering equipment.

83.Sibanye Gold - Kloof Mine
132kV Substation upgrade feasibility study.

84.Husab Joint Venture - Swakop Uranium Mine
Comprehensive PFC/harmonic study, design, specification and adjudication of PFC/harmonic filtering equipment.

85.Sibanye Gold - Kloof Mine 8#, 9#, 10#
Comprehensive PFC/harmonic optimization study of 6.6 kV PFC/harmonic filtering equipment.

86.Sibanye Gold PFC Maintenance contract Kloof, Driefontein and Cooke Mines
Monthly maintenance and performance report which compares PFC performance/monthly savings to a baseline.

 

  INDUSTRY  

1.Eikenhof pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 1 x 11 kV 5 MVAr 5th harmonic filter; 4 x 11 kV 890 kVAr unit capacitor banks; 4 x 11 kV 710 kVAr unit capacitor banks.

2.Zwartkopjes pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 15 x 6,6 kV 260 kVAr unit capacitor banks; 4 x 6,6 kV 470 kVAr unit capacitor banks; 2 x 6,6 kV 350 kVAr unit capacitor banks.

3.Houtkop pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 7 x 2,2 kV and 3,3 kV unit capacitor banks.

4.Bandag Alrode
Project management : 1 x 6,6 kV 1,8 MVAr 5th harmonic filter bank.

5.SAB Pietersburg
Project management : 1 x 11 kV 1 MVAr power factor correction bank.

6.Transwerk Koedoespoort
Project management and equipment supply : revamp of two 11 kV blocking reactor bays, including supply and installation of 3 x 3,98 mH, 800 A blocking reactors, CTs and PILC terminations.

7.Zimasco (Zimbabwe)
Transient system study and analysis to investigate furnace VT failures.

8.Lorne Stewart (UK)
Acceptance testing of dealing room on behalf of Lorne Stewart, including fire control system, security system, UPS and generator, air conditioning system and electrical services.

9.Daleside substation (Rand Water)
Evaluation of feasibility of proposed 88/11 kV 20 MVA substation for Daleside pump station.

10.Vereeniging pump station (Rand Water)
Investigation to determine possible causes for spurious tripping of slip ring recovery variable speed drive harmonic filters.

11.Zuikerbosch pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 70 x 6,6 / 11 kV unit capacitor banks; 6 x 11 kV 2 MVAr damped 5th harmonic filters.

12.Palmiet pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 32 x 11 kV unit capacitor banks; 2 x 11 kV 2 MVAr damped 5th harmonic filters.

13.Lethabo pump station (Rand Water)
Electrical system study in respect of additional 11 kV PFC / harmonic filtering requirements, together with recommendations to optimise the existing installation.

14.Libanon pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design and specification.

15.Bloemendal pump station (Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design and specification.

16.Feralloys Machadodorp Plant
Electrical system study in respect of the Plant 33 kV PFC requirements, following the planned upgrade of Furnace 2, 3 and 5 from 24 MVA to 30 MVA.

17.Feralloys Cato Ridge Plant
Electrical system study in respect of the effectiveness of existing 33 kV power factor correction and harmonic filtering, together with the feasibility of converting the Furnace 1 and 2 supply to the Megaflex tariff.

18.Daleside substation (Rand Water)
Design and specification for the complete 88/11 kV substation.

19.BMW (SA) Rosslyn
Electrical system study, PFC design and specification, project management : 1 x 11kV 2,2 MVAr 5th harmonic filter and 1 x 11 kV 2,1 MVAr capacitor bank.

20.Feralloys Machadodorp Plant
Electrical system study and project management in respect of 33 kV power factor correction and harmonic filtering requirements for the overall Plant, following installation of the new 54 MVA Furnace 1, Sintering and Smelting plant loads.

 

Machadodorp 33 kV filters

21.Vametco Minerals
Nightsave kVA demand and Megaflex tariff impact studies, together with an electrical system study to evaluate the PFC requirements for each tariff option. Recommendations in respect of tariff and PFC.

22.Polifin Midland Plant (Sasolburg)
Evaluation of the existing 33 kV supply harmonic conditions and effectiveness of existing PFC/harmonic filters. Recommendations in respect of the rectifier transformer phase shift required for the new 12 MVA rectiformer in order to limit the harmonic impact of the new load. Determination of the predicted plant load and power factor, harmonic conditions and filter loading following installation of the new rectiformer.

23.SA Ferrochrome
Comprehensive electrical system study for the overall new project, including load flow and fault level studies, harmonic filter design and specification.

24.Zimasco (Zimbabwe)
Electrical system study in respect of the Plant 11 kV PFC requirements following the planned furnace upgrades, and implications in respect of harmonic conditions and loading of existing harmonic filters.

25.Lafarge Cement (Lichtenburg)
Electrical system study in respect of the Plant 11 kV and 3,3 kV PFC requirements on the Megaflex tariff, design and specification of PFC/harmonic filters required. Project management; 3MVAr and 2MVAr 6,6 kV 5th harmonic filters; 2MVAr and 3,5MVAr 3,3 kV 5th harmonic filters.

26.Ferrometals Plant - Witbank
Comprehensive electrical system study in respect of 33 kV system supply capacity and power factor correction/harmonic filtering requirements for the overall Plant, following the planned phased upgrade of the existing 48MVA Furnace 4 and Furnace 5 to 63MVA.

27.Anglo Platinum - ACP and Oxygen Plant
Greenfield study : Determination of the predicted plant load demand and power factor during typical operation. Design, specification and project management of required 6,6 kV PFC/harmonic filters to correct for the plant load and to provide the required harmonic control.

28.Anglo Platinum - Frank Concentrator
Determination of the existing plant 6,6 kV load demand and power factor during typical operation. Fault level study and protection coordination on the substation incomers and main feeders.

29.Samancor - Ferrochrome
Quality Of Supply, earth resistance test and comprehensive electrical system study in respect of 33 kV system supply capacity requirements for the overall Plant, following the planned phased upgrade and installation of a new sub-plant.

30.August Lapple
Electrical system study in respect of 11 kV PFC / harmonic filtering requirements and project management.

31.SA Chrome
Fault finding on furnace current electrode measuring system.

32.Zwartkopjes Pump Station (Rand Water)
System study, PFC design, specification supply and project management : 15 x 11 kV unit capacitor banks

33.Botswana Metal Refinery - Tati Activox Project (Botswana)
System study, PFC/harmonic filter design and specification of 3 x 11kV 4,5MVAr second order damped 5th harmonic filters and 3 x 11kV 3,5MVAr 7th harmonic filters. Project subsequently postponed.

34.Transnet PE Manganese
Load flow study.

35.Rooiwal Wastewater Treatment Works
Electrical system study in respect of 11 kV PFC / harmonic filtering requirements.

36.Bateman Southern Urals
Electrical system study, design and specification in respect of 12 MW DC Furnace PFC / harmonic filtering requirements, 2�x 6kV second order damped harmonic filters.

37.Afrox Germiston
Fault level and protection coordination study.

38.Bloemendal Pump Station (HVT for Rand Water)
Megaflex tariff impact study. Electrical system study, PFC design, specification and project management : 2 x 11 kV 3rd harmonic filters.

39.Xstrata Rustenburg
PFC, harmonic and quality of supply study for 5 furnaces.

40.Cape Gate
Comprehensive studies included PFC optimization, tariff impact, fault level and equipment verification.

41.Lazer Metal Pressings
Quality of supply measurements, analysis and report.

42.Cape Gate
Design and project manage the installation of 1 x 88 kV and 1 x 33 kV transformer feeder bay.

43.Anglo Platinum - Polokwane Smelter
PFC audit and remedial work to 33 kV capacitor bank.

44.Assmang - Machadodorp Smelter
Comprehensive on site measurements, PFC/harmonic study, design, specification and project management of 33 kV PFC/harmonic filtering equipment.

45.Bhp Billiton - Meyerton Works
Comprehensive 33 kV PFC optimization study including analysis, recommendations and reporting.

46.Bhp Billiton - Meyerton Works
Design, supply and installation of R/C networks and surge arrestors on two furnaces.

47.Glencore Rustenburg Smelter
PFC/harmonic study, design and specification of 33 kV PFC/harmonic filtering equipment.

 

48.Cape Gate
Design and project manage the upgrade and installation of 2 x 88 kV incomer bays, 1 x furnace feeder bay 1 x 88 kV and 1 x 33 kV transformer feeder bay.

 

49.Glencore Lion Smelter
Evaluation of breaker failures. PFC/harmonic optimisation study.

 

50.Richards Bay Minerals
Audit and evaluation of the harmonic filtering/PFC requirements for the entire plant.

 

51.Cape Gate
Design and project manage the replacement of 33 kV isolators, battery charging unit and A.C. supply board.

 

52.Samancor Ferrometals
Comprehensive 33 kV PFC optimization study including analysis, recommendations and reporting. Transient study into breaker failure issues.

 

  Supply Authorities and Renewables  

1.Randfontein TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

2.Brakpan TLC
Standardrate tariff impact study. Electrical system study, PFC design and specification, project management : 1 x 33 kV 9 MVAr 5th harmonic filter.

 

Brakpan 33 kV harmonic filter

3.Piet Retief Municipality
Tariff impact and PFC feasibility study.

4.Midrand Metropolitan Town Council
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings. Electrical system study to evaluate the effectiveness of existing 11 kV and 6,6 kV PFC installed, together with recommendations in respect of PFC optimisation.

5.Local Council of Krugersdorp
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings. Electrical system study to evaluate the effectiveness of existing 11 kV and 6,6 kV PFC installed, together with recommendations in respect of PFC optimisation.

6.Parys Town Council
Electrical system study, PFC design and specification, project management : 1 x 11 kV 3 MVAr capacitor bank.

7.Pietersburg TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings. Electrical system study to evaluate the effectiveness of existing 11 kV PFC installed, together with recommendations in respect of PFC optimisation.

8.Kriel TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

9.Brakpan TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

10.Robertson TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

11.Volksrust Local Council
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

12.Vryburg Town Council
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

13.Delmas TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

14.Utrecht TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

15.Glencoe TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

16.Groblersdal TLC
Megaflex tariff impact study. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

17.City Power
Comprehensive study, design and recommendation specification of 88 kV PFC and harmonic filter installation: 150 MVAr harmonic filter banks.

18.Lephalale Municipality
Tariff conversion impact study, including power factor correction analysis. Presentation of findings to Council. Implementation of tariff conversion and assessment of actual savings.

19.Uganda Umeme  on behalf of SSI
Comprehensive network measurements, PFC study and design for voltage support on various 33kV networks.

20.Plantech - City Power
Comprehensive 'Greenfield' study, design and specification of 88 kV PFC and harmonic filter installation at the proposed Sebenza Substation.

21.Ekurhuleni Municipality
PFC audit and remedial work at Eiger and Alrode 33 kV substations.

22.BPC Orapa II Substation
Design of 3 x 33 kV 2nd order filter banks.

23.KOUGA Windfarm
QOS compliance study.

24.Tsitsikamma Windfarm
QOS compliance study.

25.Prieska Mulilo PV Plant
Design of 12 MVAr, 22 kV, 2nd order filter bank.

26.Prieska Mulilo PV Plant
Standby generator capability study.

27.Founders Engineering
Electrical specialist consultant for 2 x Windfarms and 1 x PV Plant - Eastern Cape.
All study aspects.
Project ongoing - PV plant grid code study complete.

 

  Substation Consulting  

1.Daleside substation Rand Water
Evaluation of feasibility of proposed 88/11 kV 20 MVA substation for Daleside pump station.

2.Daleside substation Rand Water
Design and specification for the complete 88/11 kV substation.

3.Cape Gate
Complete design, specification and project management of the installation of 1 x 80MVA, 88/33kV transformer bay and various modifications to existing layout.

4.Cape Gate
Complete design, specification and project management of the upgrade of 2 x 88kV incomer bays, 1 x 88/33kV transformer bay and 1 x 33kV furnace feeder bay.

5.Sibanye Gold Kloof 1# 132kV substation
Study into the technical requirements and financial implications of replacement of existing supply transformers, substation upgrade and distribution network upgrade

 


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