Shows the removal and packing of the bulbs used in sub-stations to rectify or change the electrical power from AC to DC for tram use.Demonstrates the removal and packing of mercury arc rectifier bulbsSet of five digital images of decommissioning mercury arc equipment or bulbs at a sub station during 2005. trams, tramways, substation, mercury arc, yarra trams

Black and White Photograph of a transformer face plate for a British General Electric transformer for use in Mercury Arc Rectifier Equipment, made 1950. Provides details of the transformer capacity, ratings and wiring diagram. Made at the EPM Works, Waterloo NSW.trams, tramways, transformer, mercury arc, substation, electrical equipment

A document dated June 1989 examines the then MTA tram substation network and its issues at the time, in particular the reliability of the aging rotary converters and mercury arc rectifiers. It also considers the need to upgrade the network, increase the power supply for B-class trams, and reduce voltage drop.Yields information about the status of the tram substation and electrical equipment in 1989Photocopy of a 38 page A4 document.tramways, substations, mta, the met, power supply, electrical engineering, rotary converters, mercury arc

Digital copy of a 50 page report - "Recommendation of the Executive Director and assessment of cultural heritage significance - Brunswick West Tramway Substation" at 196a Dawson St Brunswick West. Report prepared November 2019. Details the history and context of the location relevant to the development of the West Coburg route, the equipment contained within the building, includes all moveable objects within the building including documents. Has a detailed statement of cultural significance, proposed permit policy. The history includes details of the electrification of the Melbourne's tramways, the mercury arc equipment, its operation, architecture. Report includes photographs of the interior of the building.trams, tramways, substation, west brunswick electric tramway, mercury arc, heritage victoria, significance, dawson st, transformer, power supply, electrical engineering, rotary converters

Set of four Polaroid prints of a Mercury Arc rectified bulb. One photo has written on rear "Hewittic Rectifiers type 500/6". Image i4 has a person standing alongside. See Inscriptions. Craig Tooke, formally of Yarra Trams substations advised 12/8/2020 by email to Warren Doubleday. "An interesting photo. I don’t know who the person in the photo is. More than likely the bulb in from an industrial installation such as mine etc. and not tram or train. The reason is that only Melbourne trams has Hackbridge Hewittic rectifiers that were used for traction. There was three sets of bulbs installed at West Brunswick, Deepdene and Preston. West Brunswick is definitely still in existence and probably Deepdene is still in existence as the old substation was abandoned intact and just left intact. Preston of course has gone and was removed as part of the work done at PWS. Another clue is the number 500/6 which means it was from a 500 kW – 6 bulb unit. The traction units were all in multiples of 150 kW per bulb i.e. the tramway ones were 600 kW rated. The number "40246" is the bulb serial number. Each bulb manufactured had an individual serial number. Interesting the bulbs at Brisbane Tram Museum have the following serial numbers to the ones that were at Essendon tram sub. The bulbs at Essendon of course are now up at Brisbane as spares."On the envelop with the photographs is "Keith Wilkinson Ph Orbost 051 510050" and "For Bill Kingsley 4/10/93".trams, tramways, substation, electrical equipment, electrical engineering, mercury arc

This item was acquired by the Ballarat School of Mines Electrical Engineering department for use in electric power laboratory as a source of D.C., and also for instructional purposes. This central mercury arc element was located in a cabinet with transparent side panels, and equipped with the required electric accessories, to be a self-contained stand-alone unit. Head of the Electrical Engineering Department at the time was John M. Sutherland.Mercury arc rectifier, 3-phase input. Constructed of blown glass, and complicated configuration: the central inverted truncated cone is provided with 3 large diameter "horns' and four smaller ones. Each horn has electrical connection to outside, some have side horns. Approximately half a cup of free mercury inside the glass complex. No. 33369scientific instrument, x-ray, x-ray tube, xray, john m. sutherland, electrical engineering, ballarat school of mines