General Information

Serial #

215732

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CAST IRON BASE & FRAME. STEEL ARMATURE SHAFT. COMBINED DC/AC ARMATURE, LAMINATED CORE WITH INSULATED COPPER WINDINGS. COPPER COMMUTATOR & SLIP RINGS. STEEL BRUSH HOLDERS HAVE INSULATED SLEEVES. LAMINATED COPPER BRUSHES. INSULATED COPPER FIELD CORES; CAST IRON FIELD ASSEMBLIES. BRONZE BEARINGS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

120.0 cm

Width

50.0 cm

Height

67.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Regulation & transformation

Sub-Category

N/A

Manufacturer

AKA

Westinghouse

Country

United States of America

State/Province

Pennsylvania

City

Pittsburgh

Context

Country

North America

State/Province

Unknown

Period

THIS TYPE OF CONVERTER USED. C.1900-1920

Canada

PART OF A LARGE AND VARIED COLLECTION OF ELECTRICAL ITEMS ACQUIRED & DOCUMENTED BY ONTARIO HYDRO IN THE 1960S. THIS COLLECTION CONSISTS OF OVER 7500ARTIFACTS, AND IS THOUGHT TO BE THE LARGEST & MOST COMPREHENSIVE IN CANADA. IT WAS DONATED IN ITS ENTIRETY TO THE NATIONAL MUSEUM OF SCIENCE & TECHNOLOGY IN 1992

Function

TO CHANGE DIRECT ELECTRICAL CURRENT INTO ALTERNATING CURRENT. SPECIFICALLY, CONVERTS 110 VOLT DIRECT CURRENT TO 110 VOLT POLYPHASE ALTERNATING CURRENT. EACH PHASE IS BROUGHT OUT SEPARATELY TO ALLOW FOR SELECTION OF 2 PHASE OR 3 PHASE POWER

Technical

DESIGNED TO CONVERT 110 VOLT DIRECT CURRENT TO 110 VOLT POLYPHASE ALTERNATING CURRENT. GEORGE WESTINGHOUSE LED CAMPAIGN TO DEVELOP ECONOMICAL SYSTEM OF POWER TRANSMISSION USING AC: UP UNTIL C.1890 DC WAS ONLY FORM OF ELECTRICAL POWER IN COMMON USE. WESTINGHOUSE ELECTRIC INSTALLED FIRST U.S. AC POWER SYSTEM IN 1891 (REF.2)

Area Notes

Unknown

Details

Markings

MFR'S PLATES SCREWED ON EITHER SIDE OF WINDING READS: 'WESTINGHOUSE/ ELECTRIC & MFG. CO./ PITTSBURG, PA., U.S.A./ ROTARY CONVERTER/ 10 K.W. D.C. E.M.F. 110 D.C. AMP'S 99/ 2/3 PHASE ALT'S 3600 SPEED 900/ SERIAL NO. 215732'/ '108' HANDPAINTED IN WHITE ON ARMATURE HOUSING TOP/ PLATE SCREWED TO ONE SIDE OF CASING READS: 'WESTINGHOUSE E. & M. CO./ PITTSBURG, PA. U.S.A./ PATENTED/ MAY 6'90/ MAR. 22'92/ MAY 15'94/ MAR. 17'96/ MAY 4'97/ MAY 11'97/ AUG. 17'97/ SEP. 14'97/ JUN. 20'98/ JUN. 28'98/ JUL.19'98/ FEB. 28'99/ MAY 30'99/ SEP. 26'99 JUNE.26'00/ OTHER PATENTS APPLIED FOR'

Missing

UNKNOWN

Finish

PREDOMINATELY BLACK FINISH; RED-ORANGE WINDINGS, MAGNET ASSEMBLIES, BRUSH ASSEMBLY FITTINGS, ETC.

Decoration

N/A