Westinghouse Type BT Transfer Relay, 1918-1930

01

Artifact Overview

As the electrical industry expanded, companies created equipment to protect valuable infrastructure used to generate and transmit electricity. Engineers developed relays to protect against service interruptions and keep equipment safe from abnormal current loads. These unassuming devices control the path of electricity, directing it to different circuit paths when needed.

Artifact Details

Artifact

Relay

Date Made

1918-1930

Location

Not on exhibit to the public.

Object ID

72.131.6

Credit

From the Collections of The Henry Ford.

Material

Composite material
Metal
Glass (Material)

Color

Black (Color)
Gold (Color)

Dimensions

Height: 15 in
Width: 4.75 in
Length: 4 in

Inscriptions

on plate: WESTINGHOUSE ELECTRIC & MFG. CO. PITTSBURGH, P.A., U.S.A./ TRANSFER RELAY TYPE BT/ FREQUENCY 25-60 CYCLES 5 AMPERES/ STYLE 252725D/ SERIAL 349045/ PATENTED 11-14-16/ WESTINGHOUSE ELECTRIC 1-3-17