Efficient and reliable designs to meet AC and DC applications

Efficient and reliable designs to meet AC and DC applications

Industrial millbank type resistance grids CHI Control

2 EATON CORPORATION Industrial millbank type resistance grids CA125001EN – October 2012

Powering business worldwideDiscover Eaton – a leader in the power management field

Since 1911, when our company began trading as a small truck parts supplier, Eaton® Corporation has come a long way. Today, as a diversified power management company, Eaton has sales of $11.9 billion USD (FY 2009), employs 70,000 people and has customers in more than 150 countries. Everyday, we help companies across the world to manage power, and do more, while consuming less energy.

Eaton’s innovative products, solutions and technologies are designed to help customers to manage power and conserve resources while working more productively, safely and sustainably. Our integrated and diversified business strategy ensures that we remain at the forefront of our industry, decade after decade.

Aerospace

A leading global supplier to commercial and military aviation and aerospace industries. An extensive technology portfolio includes hydraulic systems, fuel systems, motion control systems, propulsion sub-systems, cockpit controls and displays and fluid health monitoring systems. Our products improve fuel economy, aircraft performance, reliability and safety.

Truck

A leader in the design, manufacture and marketing of complete line of drivetrain systems and components for medium- and heavy-duty commercial vehicles. Under the “Roadranger” brand, Eaton also markets lubricants, safety products and service tools. Eaton’s hybrid power systems have earned the company recognition as a global leader in alternative power for commercial vehicles.

Electrical

A global leader in electrical control, power distribution, uninterruptible power supply and industrial automation products and services. Our products provide customer-driven PowerChain Management® solutions to serve the power system needs of the industrial, institutional, government, utility, commercial, residential, IT, mission critical and OEM markets worldwide.

Aerospace Truck

EATON CORPORATION Industrial millbank type resistance grids CA125001EN – October 2012 3

Powering business more sustainablySustainability – smaller footprint in the world

The principle of sustainability means meeting the current needs of our own society without compromising the needs or options of future generations. It is a principle, which forms the very core of our design and production philosophy and guides all our activities across the world. Our commitment to reducing our own ecological footprint covers a wide range of green technologies, products and services that help our customers utilise electrical power more efficiently, while improving environmental performance.

Eaton has been recognised throughout the world for its uncompromising business ethics. For example, it was listed as one of the ‘World’s Most Ethical Companies’ on the Ethisphere Institute’s annual list for three consecutive years (2007, 2008 and 2009).

Learn more about Eaton Green Solutions at www.eaton.com/greensolutions

When you see this symbol, you know the solution represents an Eaton bench- mark for environmental performance.

Electrical Automotive Hydraulics

Automotive

A supplier of critical components that reduce emissions and fuel consumption and improve stability and performance of cars, light trucks and commercial vehicles. Principal products include engine valves and valve train components, transmission and engine controls, supercharger, locking and limited slip differentials, cylinder heads, fluid conveyance components, body mouldings and spoilers.

Hydraulics

A worldwide leader in reliable, high-efficiency hydraulic systems and components for use in mobile and industrial applications. Markets include agriculture, construction, mining, forestry, utility, material handling, earth moving, truck and bus, machine tools, moulding, primary metals, automotive, power generation, port machinery and entertainment.

Complete coverage of the market – worldwide in all standards

Local market leader with global competence

Eaton’s product series are distinguished by their strong presence in all regions of the world. In markets that adhere to IEC standards, Eaton’s Moeller line is very well established, and in the world of UL/CSA, Eaton is a key player, for example with its Cutler-Hammer line. Now all customers are benefiting from first-rate engineering and the combined know-how in research and development – no matter which standards they use.

South Africa

Eaton acquired the CHI Control business through the acquisition of Actom Low Voltage, South Africa in July 2011. In terms of organisation, product and production techniques, CHI Control is being fully integrated into Eaton, adopting the Eaton Business System, a single system covering work processes, tools and tooling. The CHI Control logo is now being replaced by the Eaton logo on product rating and carton labels and associated marketing materials with a phased completion date of 1 July 2013. The CHI Control name and logo remain registered trademarks of Eaton Corporation.


1

Industrial millbank type resistance grids

1 Industrial millbank type resistance grids1.1 Standard millbank resistors ..................................................................................................61.2 Three phase millbank resistors ............................................................................................81.3 Type WL custom built resistor banks ..................................................................................91.4 Neutral resistor units .........................................................................................................101.5 Spool resistor units ............................................................................................................13

Type MG Resistor Bank

Three Phase Millbank Resistor

Type WL Custom Built Resistor Bank

Typical Neutral Earthing Resistor Unit

Type L - Spool Resistor Unit


1

Standard millbank resistors1.1Features

• Standard NEMA dimensions

• Standard NEMA end-plates

• Taps on every second grid

• Stainless steel grids

• Double insulation

• Argon gas welded seams

Eaton’s Type MG double insulated standard resistor millbanks are employed in every conceivable type of resistor application.

A standard millbank is one in which each grid in the bank is identical with a continuous current path throughout the unit. In addition, a standard millbank is equipped with a tapping point on every alternate grid. There is a maximum of 21 standard banks only. With this quantity in stock as spare units, any breakdown can be corrected immediately by simply removing the defective bank, replacing it with a similar unit from stock, and reconnecting on the same tapping points.

The illustration on the right shows that the standard MG range of millbanks is fully double insulated from grid to tie rod and then from tie rod to mounting end-plate. The substantial insulators have a 100% South African design and manufacturing content. They are manufactured from highly resilient glass polyester. Similar insulators separate the grid stack from the resistor tie rods.

The complete range of MG millbanks are made from quality Carpenter chrome steel, which defies rust and corrosion. They are preferred units to every large crane user, as well as to the mining industry for rotor circuit control and, as listed on page 10, for neutral earthing duties.

Ordering information375ºC Temperature rise

Ampere ratings per NEMA class numbers Bank Ohms Cont. 170 160 150 140 130 110 Eaton Part Number

MG3 x 2 0,0465 350 440 513 575 680 792 1096 CHW40601

MG4 x 2 0,06 310 383 448 507 577 665 912 CHW40602

MG5 x 2 0,075 280 349 410 456 537 598 855 CHW40603

MG6 x 2 0,09 250 309 362 412 478 551 760 CHW40604

MG3 0,156 185 232 270 303 358 417 577 CHW40606

MG4 0,216 162 202 236 267 304 350 480 CHW40607

MG5 0,25 147 184 216 240 283 315 450 CHW40608

MG6 0,325 131 163 191 217 252 290 400 CHW40609

MG8 0,544 109 137 159 178 205 238 328 CHW40610

MG10 0,72 96 121 140 157 182 209 290 CHW40611

MG12 0,90 85 107 123 136 160 182 250 CHW40612

MG16 0,96 80 99 117 130 152 179 245 CHW40613

MG20 1,52 66 83 96 108 128 149 201 CHW40614

MG25 2,1 58 74 85 95 111 128 178 CHW40615

MG31 2,85 51 65 75 83 98 110 158 CHW40616

MG40 3,92 44 55 64 72 83 95 132 CHW40617

MG50 7,6 34 42 49 54 64 74 100 CHW40618

MG62 10,0 29 37 42 47 54 60 85 CHW40619

MG80 11,2 19 27 30 33 40 45 58 CHW40620

MG150 20,3 11 12 18 19 23 26 34 CHW40621

MG200 25,9 7 8 12 13 15 17 23 CHW40622

Time on Cont. 15 15 15 15 10 5 Seconds on

Time off Cont. 15 30 45 75 70 75 Seconds off

Note: Ratings are available for 500ºC rise

Type MG Resistor Bank


1

1.1Standard millbank resistors

Dimensions (mm)

13mm wide slots for 12mm mtg. screws


1

Three phase millbank resistors1.2Features



• Taps on every second grid




• Three phase isolation

Type 3 PG millbanks are identical in dimensions, materials and

construction to the standard type MG double insulated millbanks

detailed on pages 6 and 7 of this catalogue. They differ only

in that they contain three electrically separate sections.

Typical applications will be 3 phase rotor resistors; 3 phase

primary resistor for squirrel cage motors; 3 phase resistor

starting of a closed transition Star-delta starter.

3 PG banks are also double insulated to withstand the severest

of crane and industrial motor control requirements.

Ordering information375ºC Temperature rise

Ampere ratings per NEMA class numbers Bank Ohms Cont. 170 160 150 140 130 110 Eaton Part Number per phase

3PG3 0,044 185 232 270 303 358 417 577 CHW40636

3PG4 0,056 162 202 236 267 304 350 480 CHW40637

3PG5 0,070 147 184 216 240 283 315 450 CHW40638

3PG6 0,088 131 163 191 217 252 290 400 CHW40639

3PG8 0,144 109 137 159 178 205 238 328 CHW40640

3PG10 0,20 96 121 140 157 182 209 290 CHW40641

3PG12 0,25 85 107 123 136 160 182 250 CHW40642

3PG16 0,26 80 99 117 130 152 179 245 CHW40643

3PG20 0,40 66 83 96 108 128 149 201 CHW40644

3PG25 0,50 58 74 85 95 111 128 178 CHW40645

3PG31 0,75 51 65 75 83 98 110 158 CHW40646

3PG40 1,12 44 55 64 72 83 95 132 CHW40647

3PG50 2,00 34 42 49 54 64 74 100 CHW40648

3PG62 2,25 29 37 42 47 54 60 85 CHW40649

3PG80 2,56 19 27 30 33 40 45 58 CHW40650

3PG150 4,50 11 12 18 19 23 26 34 CHW40651

3PG200 5,92 7 8 12 13 15 17 23 CHW40652

Time on Cont. 15 15 15 15 10 5 Seconds on

Time off Cont. 15 30 45 75 70 75 Seconds off

Note: Ratings are available for 500ºC rise

Three Phase Millbank Resistor


1

1.3Type WL custom built resistor banks

Features and Construction






The type WL resistor banks are assembled on a grid to suit basis, ie. different sizes to suit ohmic and current values per section of starting resistance.

Separate phases in a single bank are insulated from each other by means of glass polyester insulators. The type WL banks are physically identical to the MG bank dimension wise and use the same grids but in different configuration. They can be less costly than millbanks but as they are purpose-built it is not feasible to carry spare units.

Type WL Custom Built Resistor Bank

Dimensions (mm)

Frames with NEMA End Plates Type WL, MG, 3PG and WL/L

16mm wide slots for 12mm mtg. screws


1

Features

Eaton manufactures a large range of neutral earthing resistors for the South African market. The units are free standing, natural air cooled and enclosed in heavy duty sheet steel enclosures. They can be insulated for voltages up to 11kV as standard and have short time ratings of 10, 20, 30 and 60 seconds.

The resistor is made up of standard millbank units.

External connections

Two connection points are provided on the enclosure. One is ceramic 3,3kV/11kV insulated through-bushing, for external connection to the transformer star point. The earth connection will be to a heavy brass stud mounted on the side of the enclosure 300mm from the base.

Enclosure

This is fabricated from 1,6mm sheet steel, suitably braced and welded to form a rugged free-standing unit. Its design is such that it affords complete electrical clearance and mechanical protection for the internal units, plus full protection from the environment. It is designed for outdoor use. The four side covers around the enclosure are held in position with Hex-head bolts. The front and rear covers are fitted with handles to facilitate removal and handling.

All metalwork is pickled and epoxied to a high grade finish.

Colour - Cutler-Hammer grey.

Typical Neutral Earthing Resistor Unit – Covers Removed

Short time ratings

Ampere rating at 500ºC temperature rise Bank Ohms 10 sec. 20 sec. 30 sec. 60 sec.

MG3 0,1563 1100 780 620 440

MG4 0,216 840 600 490 348

MG5 0,25 890 640 520 369

MG6 0,325 670 480 410 291

MG8 0,544 546 390 330 235

MG10 0,72 435 310 260 185

MG12 0,90 350 250 210 150

MG16 0,96 476 340 280 199

MG20 1,52 378 270 220 156

MG25 2,10 287 205 175 125

MG31 2,852 245 175 145 103

MG40 3,92 189 135 110 78

MG50 7,6 154 110 87 62

MG62 10,0 122 87 72 51

MG80 11,2 95 68 57 41

MG150 20,0 62 44 37 26

MG200 25,92 54 38 32 22

Neutral earthing resistors1.4


1

1.4Neutral earthing resistors

Maximum current (375ºC rise)Bank 10 sec. 20 sec. 30 sec.

MG 3 x 2 1805 1292 1064

MG 4 x 2 1368 988 836

MG 5 x 2 1482 1064 874

MG 6 x 2 1140 874 703

Maximum current (500ºC rise)Bank 10 sec. 20 sec. 30 sec.

MG 3 x 2 2014 1463 1216

MG 4 x 2 1586 1140 950

MG 5 x 2 1729 1216 1026

MG 6 x 2 1339 950 684

Dimensions (mm)


1


1

1.5Spool resistor units – Type L

Features

• Continuous element

• Robust construction

• Uniform size

• Light in weight and compact

• Wide range of capacity and resistance values

Spool resistor units are made of spiral grooved porcelain bases wound with advance or nichrome wire; the wire is wound on a mandrel and then wound on the spiral base which results in well ventilated and high wattage capacity units.

The ratings specified are maximum for units mounted in free air. If units are mounted where ventilation is restricted or mounted close together the maximum wattage rating is reduced. For such conditions, resistors in well ventilated enclosures can be rated at 80% and in unventilated enclosures at 65% of maximum wattage.

Ordering information

Ampere ratings per NEMA class numbers Ohms Cont. 170 160 150 140 130 110 Cat. No. Eaton Part Number Amperes

G3AP

0,50 27,0 36 44 49 54 65 90 50 CHW40450

0,70 20,0 27 33 37 40 49 68 70 CHW40451

1,0 16,5 22 27 30 33 40 55 100 CHW40452

1,4 14,4 19 23 26 29 35 47 140 CHW40453

2,0 12,8 17 20 22 24 29 41 200 CHW40454

2,2 11,2 15 18 20 22 27 37 220 CHW40455

2,6 11,5 15 18 20 21 25 34 260 CHW40456

3,2 9,6 13 15 17 19 23 31 320 CHW40457

3,5 10,5 14 16 17 19 22 30 350 CHW40458

4,5 8,6 12 13 15 17 20 28 450 CHW40459

4,8 9,2 12 13 14 15 18 24 480 CHW40460

5,0 8,1 11 12 13 15 17 24 500 CHW40461

5,5 7,9 11 12 13 15 17 24 550 CHW40462

6,0 7,6 10 12 13 14 17 24 600 CHW40463

6,5 8,1 10 11 12 12 14 19 650 CHW40464

8,0 7,0 9 10 11 13 14 20 800 CHW40465

8,6 7,0 8 9 10 10 12 16 860 CHW40466

11,0 6,1 8 8 9 10 12 16 1100 CHW40467

11,5 5,5 7 7 8 8 9 12 1150 CHW40468

12,0 5,8 7 8 9 9 11 16 1200 CHW40469

15,0 5,3 6 7 8 8 9 13 1500 CHW40470

20,0 4,6 6 6 7 7 8 11 2000 CHW40471

27,0 3,6 4 5 5 5 6 8 2700 CHW40472

36,0 3,0 4 4 4 4 5 7 3600 CHW40473

45,0 2,2 3 3 3 3 4 5 4500 CHW40474

62,0 2,0 2 3 3 3 3 4 6200 CHW40475

81,0 2,7 2 2 2 2 2 3 8100 CHW40476

Type L - Spool Resistor Unit

Dimensions (mm)

All of the above are trademarks of Eaton Corporation or its affiliates. Eaton has a license to use the Westinghouse brand name in Asia Pacific. ©2012 Eaton Corporation.

1874 1886 19111893 19831962 19891984 19991976 1977190819061899 1963 19671934

The power of fusion.

There’s a certain energy at Eaton. It’s the power of uniting some of the world’s most respected names to build a brand you can trust to meet every power management need. The energy created supports our commitment to powering business worldwide.

Eaton is dedicated to ensuring that reliable, efficient and safe power is available when it’s needed most. With unparalleled knowledge of electrical power management across industries, experts at Eaton deliver customized, integrated solutions to solve our customers’ most critical challenges. Eaton.com/Electrical.

Changes to the products, to the information contained in this document, and to prices are reserved; so are errors and omissions. Only order confirmations and technical documentation by Eaton is binding. Photos and pictures also do not warrant a specific layout or functionality. Their use in whatever form is subject to prior approval by Eaton. The terms and Conditions of Eaton apply, as referenced on Eaton internet pages and Eaton order confirmations.

Eaton is dedicated to ensuring that reliable, efficient and safe power is available when it’s needed most. With unparalleled knowledge of electrical power management across industries, experts at Eaton deliver customised, integrated solutions to solve our customers’ most critical challenges.

Our focus is on delivering the right solution for the application. But, decision makers demand more than just innovative products. They turn to Eaton for an unwavering commitment to personal support that makes customer success a top priority.

For more information, visit www.eaton.eu/electrical

Follow us on social media to get the latest product and support information.

To contact an Eaton salespersonor local distributor/agent, please visitwww.eaton.eu/electrical/customersupport

Eaton Industries Manufacturing GmbHEMEA Headquarters7 Route de la Longeraie1110 MorgesSwitzerland

© 2012 Eaton CorporationAll Rights ReservedAll other trademarks are propertyof their respective owners. Printed in South AfricaPublication number CA125001EN

Africa Electrical Sector HQ Eaton Electric (South Africa) (Pty) Ltd Private Bag X019 Wadeville 1422 Tel: (011) 824-7400 Fax: (086) 681 9302

Cape Town Branch Eaton Electric (South Africa) (Pty) Ltd P.O. Box 3308 Cape Town 8000 Tel: (021) 531 5852 Fax: (021) 531 9953

Durban Branch Eaton Electric (South Africa) (Pty) Ltd P.O. Box 132, Umgeni Business Park, Durban 4098 Tel: (031) 263 0502 Fax: (031) 263 0756

Witbank Branch Eaton Electric (South Africa) (Pty) Ltd P.O. Box 3798 Witbank 1035 Tel: (013) 692 3066 Fax: (013) 697 3246

Port Elizabeth Sales Office Eaton Electric (South Africa) (Pty) Ltd P.O. Box 7327 Newton Park 6055 Tel: (041) 364 1049 Fax: (041) 364 2180

Rustenburg Sales Office Eaton Electric (South Africa) (Pty) Ltd P.O. Box 20493, Protea Park, Rustenburg 0305 Tel: (014) 596 7600 Fax: (014) 596 6197

Vanderbijlpark Sales Office Eaton Electric (South Africa) (Pty) Ltd P.O. Box 5861 Vanderbijlpark 1900 Tel: (016) 889 2476/7 Fax: (016) 889 2266

Richards Bay Sales Office Eaton Electric (South Africa) (Pty) Ltd P O Box 1700, Richards Bay, 3900 Tel: (035) 797 5181/2/3 Fax: (035) 797 5184 Cell : 082 460 3995

Local Distributor/agent

Documents

Efficient and reliable designs to meet AC and DC applications