General Information

Serial #

249235

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL CASING & PARTS/ GLASS/ SYNTHETIC PARTS

Dimensions

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

Length

20.5 cm

Width

15.4 cm

Height

12.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

Westinghouse

Country

Canada

State/Province

Ontario

City

Hamilton

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

THIS ONE WAS KEPT AT THE DEPT. OF TRADE AND COMMERCE, STANDARDS BRANCH, IN OTTAWA AS PART OF ITS LEGAL OBLIGATIONS TO TEST AND MAINTAIN EXAMPLES OF METERS SOLD COMMERCIALLY IN CANADA.

Function

A METER WHICH INTEGRATES, OR SUMS UP, THE SUCCESSIVE VALUES OF POWER SUPPLIED THROUGH IT TO A DISTRIBUTING CIRCUIT, & REGISTERS THE SUMS OF THESE VALUES IN COMMERCIAL UNITS; IT MEASURES THE TOTAL ENERGY USED (REF.2)

Technical

INDUCTION WATTHOUR METER IS SIMPLE IN STRUCTURAL ASSEMBLY. THIS INSTRUMENT IS ACCURATE OVER A WIDE RANGE OF LOAD, POWER FACTOR, VOLTAGE, FREQUENCY, & TEMPERATURE. ONLY DRAWBACK OF THIS INSTRUMENT IS THAT, AS IT RELIES ON INDUCTION, IT CANNOT BE USED IN DIRECT CURRENT CIRCUITS. IT IS, HOWEVER, THE LEADING CHOICE FOR ALTERNATING CURRENT CIRCUITS. IT IS SIMPLER, COSTS LESS, AND REQUIRES LESS MAINTENANCE THEN BOTH COMMUTATOR WATTHOUR METERS AND MERCURY WATTHOUR METERS. THIS ARTIFACT WAS USED BY THE ELECTRIC COMPANY TO MONITOR THE AMOUNT OF ELECTRICITY USED FOR BILLING PURPOSES. AS SUCH, IT WAS OFTEN PLACED OUTSIDE THE HOME OR IN THE BASEMENT. CONSEQUENTLY, THE ACCURACY OF SUCH INSTRUMENTS, WHILE SUFFICIENTLY HIGH FOR THE PURPOSE, IS NOT SO IMPORTANT A FACTOR AS PERHAPS SOME OTHER QUALITIES; SUCH AS RUGGEDNESS, READABILITY, AND LOW COST.

Area Notes

Unknown

Details

Markings

PLATE READING 'CANADIAN WESTINGHOUSE CO., LIMITED/ HAMILTON, CANADA/ TYPE CC 2 WIRE WATTHOUR METER/ 10 AMPS, 100 VOLTS, K=.667/ STYLE H5657, SERIAL 249235' WITH PATENT DATES/ RAISED LETTERING READING 'WESTINGHOUSE'/ RED DEPT. OF TRADE & COMMERCE SEAL

Missing

MISSING PROTECTIVE PLATE OVER SOCKETS

Finish

CASING PAINTED BLACK/ WHITE DIAL WITH BLACK MARKINGS/ BLACK SYNTHETIC/ METALLIC PARTS

Decoration

N/A