General Information

Serial #

22

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

metal/ wood/ fibre

Dimensions

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

Length

1.1 m

Width

1.0 m

Height

1.0 m

Thickness

N/A

Weight

4050.0

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Regulation & transformation

Sub-Category

N/A

Manufacturer

AKA

FERRANTI

Country

England

State/Province

Unknown

City

Hollinwood

Context

Country

England

State/Province

Unknown

Period

Late 19th early 20th century

Canada

Sent to Ontario Hydro by Ferranti Ltd. in 1965, and became part of the Ontario Hydro Collection. Ferranti became an important manufacturer of electric equipment in Canada.

Function

A device used to transfer electric energy from one circuit to another, and which changes the voltage, current, phase or other electric characteristic.

Technical

One of the first transformer built by Ferranti. It was used as part of Deptford scheme at the Trafalgar Square Power Station to step down 10,000 volt supply from Deptford to 2,400 volt as used in London. This transformer consists of a high-pressure coil inter-spaced between two low-pressure coils. Each of these coils is composed of copper strips, separated by vulcanized fibre and wound over with varnished cloth and vulcanized fibre. They are formed of a number of separate flat coils built up one over the other and connected together in series, insulating material being inserted between each element. The high-pressure and low-pressure coils are separated from one another by sheets of ebonite, with a considerable air space between. The iron cores are very massive and are formed of flat bands bent over in opposite directions to form closed magnetic circuits; the various groups of iron bands being separated from one another by an air space of 0.5 inch, to provide for ventilation, or in cases where the whole transformer was placed in oil, to allow a free circulation of the oil.

Area Notes

Unknown

Details

Markings

Serial number embossed on wood and painted over in black reads: "22" (serial number is hard to see, found on a wooden side panel)

Missing

none known

Finish

Painted black

Decoration

N/A