Photograph included in book "Victoria: Gold and Minerals" issued by Mines Department Victoria, 1935Photographvictoria, brown coal, briquettes, electric, power station, electricity, yallourn, mining

The Cowes Power station was in Cowes west, corner of Chapel Street and Osborne Avenue. James Norman Day was in charge c. 1935.HistoricalPhotocopy of letter from Mr & Mrs Ronald Day, Mermaid Beach, Queensland, sent to the Electrical Engineer, Cowes Council, 1995. and reply to sender. Also copy of photo of equipment in power station.Mr and Mrs Ronald Ernest Daypower station, electricity, james norman day

This shunt is a type of resistor built of copper and designed to carry a current. It was part of the Hydro generator control metering system. It reduces the large current to a small voltage.Historical: This equipment represents a major construction and ongoing operational industry dealing with the supply of hydro electricity to Victoria.Made of copper the shunt has a middle cube with 12 sheets of copper, 5mm apart formed like shelves. On either side of the cube are two shelves coming out from the middle. Both have 2 hollow circles 17.5mm in diameter 25 mm apart in the middle. At the Join of the 'shelves' and cube is a screw on each side.Screwed in metal plaque: Deriv. 1662691 / OHM 0.0000833 / AMP 1200 on the side of the cube above a shelf and on the opposite shelf: ALTO ----> (also a metal plaque screwed on). kiewa hydro electric scheme. secv. hydro generator. victorian electricity grid, power station. electricity., resistor

This generator is associated with James Oddie, and possibly Henry Sutton. Early Grey generatorelectricity generator, ballarat power station, ballarat electricity supply

Set of 3 photos of the interior of the Ballarat A power station showing generation equipment and one of the rotary converters. The station equipment was removed after the SECV system closed.Yields information about the equipment installed at Ballarat A power station.Set of 3 Kodachrome colour slides - cardboard mountsHave the photographer's slide numbers written on them.trams, tramways, closure, secv, ballarat "a" power station, rotary converters, electricity generation

Hazelwood Power Station is was built between 1964 and 1971, The power station closed in March 2017.Colour photograph of Hazelwood Power Station. hazelwood power station, coal fired electricity generation, gippsland

This photograph shows part of the railway constructed and used for the removal of soil and rocks from the tunnels bored out of the mountains for the pipeline servicing the Hydro Electricity power stations in the Kiewa Hydroelectric Scheme. This photo details an era when there were 4,000 construction workers located in two main accommodation camps, Mount Beauty (the larger one) and Bogong village. These accommodation sites were constructed and maintained as a secured or gated residential area with access only available by a special pass authorised by the Kiewa Hydroelectric Scheme. All the power used by the rail system was from electric motors connected to batteries. Overhead power poles seen on either side of the embankment details that electricity from the Scheme was in use. This use was cleaner and more environmentally friendly than the coal still used by large locomotives from city to country railways. The worker shown is not however wearing protective head and hand coverings. This is also an era where there was a lack of health and safety legislation covering workers in dangerous working conditions.Scanned photo of original black and white photo on Kodak XtraLife II paper. Picture is of a section of railway track servicing the tunnels of the Hydroelectric scheme during the 1940s - 1950sOn back of photo "Kodak XtraLife II paper"railway in kiewa electric scheme, tunneling

In the foreword the Chairman and General Manager, W.H. Connolly, wrote: "Australia's progress since the Second World War has been remarkable - and nowhere more so than in Victoria. Although the smallest pf the mainland States, Victoria is today the most highly industrialised, the second most populous and the most rapidly developing State in the Commonwealth. Many factors have contributed to this growth, bu the one of greatest importance is the vast wealth of easily extractable brown coal in the Latrobe Valley which is the source of Victoria's electricity and a major part of its solid fuel. ... "White and green soft covered book of 34 pages with black & white and coloured illustrations. The book includes starts with an historical section, and includes information the open cut, Yallourn Power Station, Yallourn Briquette Works, the town, Morwell Open Cut, and includes a map of the Latrobe Valley Brown Coal resources.yallourn, connolly, open cut, power station, kernot, coal, briquette, lyle, monash, yallourn open cut, yallourn power station, yallourn briquette works, morwell open cut, hazelwood, brown coal, gippsland, horses, turning sod

The first commercially available, Australian-made domestic refrigerator to operate without ice was produced by Edward Hallstrom in 1923. It used kerosene as a power source and was promoted as ideal for outback stations where ice was not available. According to Museum Victoria, Hallstrom introduced the 'Silent Night' which ran on electricity or gas in 1935. However, Hailstorm's great-grandson, stated that the Silent Night refrigerator was introduced in 1928. Although Australians were among the pioneers of refrigeration in the 1850s, the technology wasn't adapted for domestic use until many decades later. The first domestic electric refrigerator was sold in America in 1913. It had an air-cooled refrigeration unit mounted on top of an ice box. The Frigidaire and Kelvinator brands date from 1918 when the first self-contained fridges were sold. Before this food safes were used as well to keep food away from flies and to keep items cool.A significant item used from the late Victorian era until around 1940 when people were beginning to be able to afford domestic refrigerators. After the second world war, most households had replaced their food storage cupboards or safes with refrigerators. The subject item gives a snapshot of domestic life from this time.Wooden kitchen food safe, 2 door with wire mesh at sides. Raised back panel has shaped edges and includes a shelf above bench area that has turned legs. The safe has 4 plain legs.Noneflagstaff hill, warrnambool, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, food safe, kitchen safe, kitchen furniture, food storage

The first commercially available, Australian-made domestic refrigerator to operate without ice was produced by Edward Hallstrom in 1923. It used kerosene as a power source and was promoted as ideal for outback stations where ice was not available. According to Museum Victoria, Hallstrom introduced the 'Silent Night' which ran on electricity or gas in 1935. However, Hailstorm's great-grandson, stated that the Silent Night refrigerator was introduced in 1928. Although Australians were among the pioneers of refrigeration in the 1850s, the technology wasn't adapted for domestic use until many decades later. The first domestic electric refrigerator was sold in America in 1913. It had an air-cooled refrigeration unit mounted on top of an ice box. The Frigidaire and Kelvinator brands date from 1918 when the first self-contained fridges were sold. Before this food safes were used as well to keep food away from flies and to keep items cool.A significant item used from the late Victorian era until around 1940 when people were beginning to be able to afford domestic refrigerators. After the second world war, most households had replaced their food storage cupboards or safes with refrigerators. The subject item gives a snapshot of domestic life from this time.Wooden kitchen safe with 3 metal perforated panels & 2 shelves inside. Was painted light Green but has been restoredflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, refrigeration, refrigerator, food storage, food safes, edward hallstrom

Information from Norman F. Dalton: Ballarat had a reticulated DC supply in the early part of last century and in 1905 had sufficient generating capacity to enable the trams to be changed from horse drawn to DC electricity. The use of electricity increased with the main power station located on Wendouree Parade, near Webster Street, under the ownership of The Electric Supply Company of Victoria. AC generating plant was installed in 1925 and conversion to AC proceeded. In 1934 the company was taken over by the State Electricity Commission Victoria (SECV) and more AC generation was installed and the changeover of customers was accelerated. This is around the time that the Synchronome Frequency Checking Mast Clock was installed at the Wendouree Parade Power Station. The SECV Annual Report of 1921 states: ::Section 11 of the act directed the COmmission to enquire into the question of securing the adoption of such standards of plant and equipment of a system, frequency and pressure for the generation and distribution of electricity as will admit of the efficient interconnection of undertakings throughout the State. In 1934 when the SECV took over the Ballarat operations the question of linking with the State grid had been a planned operation for some years but due to financial considerations had hindered it and in fact would continue to do so for a further 10 years. So while the need for close frequency control for interconnection was hardly an issue, the need to keep electric clocks correct was important, particularly as this item was a frequent sales point to cover the inconvenience and sometimes expense of converting from DC to AC. The clock is a very accurate pendulum clock with provision for varying effective length during operation for precise time regulation. There are two normal time dials and one is controlled by the pendulum and the other is operated by the system frequency. When the clock was in use it was installed by the MEter and Tests Laboratory and the time was checked daily by radio time signals. The two dials were repeated in the operators control panel in the Power Station. A maximum deviation between the two dials was set in the operating instructions (eg 5 seconds) and the operator would correct this when necessary by remote manual alteration of the turbine governor set point. The clock was used to drive and regulate a system of "slave" clocks which were used to display the time in various locations around the power station. A slave clock is a simple clock which is driven by a small electric motor, its accuracy is regulated by the master clock every 30 seconds to ensure that it and all the other slave clocks in the station are on exactly the right time; slave clocks were placed in various locations, from common rooms to workshops. A master clock could potentially run thousands of slave clocks at one plant. The clock also contains a rectifier. A rectifier is a device that is used to convert AC power to more stable DC current.Two clocks in a timber case. Both are electric, one is powered by the main pendulum mechanism, the other is a self contained electric clock. The main mechanism is of the gravity arm and roller type, which sends an impulse to the slave clocks every 30 seconds. The This Synchronome Frequency Checking Master Clock was used at the Ballarat Power Station. Below the main section of the case is a smaller cabinet containing a rectifier to provide consistent DC power for the clock. The rectifier was made by the Victorian company Hilco, which was located in Burwood. There is a high chance this is not the original rectifier from this clock as there appears to be brackets to hold a larger device in the space the rectifier occupies.Front below main clock face on front of case: "Patented Sychronome Brisbane" Lower left-hand clock face: "Frequency time" Lower right-hand clock face: "Standard Seconds" Synchronous electric clock mechanism on door (Frequency time clock): >200/250 V. 50~ >"Synchronomains" Made in England >Direction indicator for clock starting switch >"To start move lever in direction of arrow and release" >"Patent applied for" Mechanism for "standard seconds" clock: >"English Made" >"Patented" >Serial number "321" >0 above right-hand pillar on front-plate Mechanism for "standard seconds" clock: >"English Made" >"Patented" >Serial number "321" >0 above right-hand pillar on front-plate Mechanism for main clock face: >"English Made" >"Patented" >Serial number "8751" >0 above right-hand pillar on front-plate Inside case, back panel, top enamel plate: >Seconds Battery + Pos. > Battery Common or - Neg. >1/2 min dials Inside case, back panel, bottom enamel plate: external seconds dial Inside case, right hand side, electrical knobs: two switches, both "A.C. mains" Pendulum rod, below suspension spring: Serial number (?) 0000005 Rectifier in bottom cabinet: >"Hilco Rectifier" >"A.C. Volts 230/240" >"Model 1060/S" >"A.C. Amperes" >"Serial No. 1060/S >"Phases 1" >"D.C. Volts 6" >"C.P.S. 50" >"D.C. Amperes 1" >"Made in Australia by Hilco Transformers McIntyre St., Burwood, Victoria." Bakelite electrical plug: makers mark Lower cabinet, RH side panel, pressed tin plate: "AC" (upside down) Brass speed adjustment, outer right RH side: "S" and "F" Ivory and wood pendulum beat ruler: >Ruler, with 0 in centre and numbers 1-5 in ascending order from centre on left and right. > "Synchronome Patent." Steel plate, back panel, inside case, right hand side: >N R A" (descending) >"2191" serial number/part number Face of main clock: "Synchronome Electric" synchronome frequency checking master clock, electricity, state electricity commission, wendouree parade power station, secv, clock, time, pendulum, electric supply company of victoria, norman f. dalton, ballarat power station, rectifier, slave clock

Brown Coal is typically found as rocks. During formation the Brown Coal starts as peats, which is an acidic brown deposit resembling soil, and over time when subjected to pressure and heat these peats form the Coal. Brown Coal is the lowest rank of coal as it has a low carbon (energy) content, and a high moisture content. This high moisture content makes Brown Coal unsuitable for overseas exports. This particular specimen was recovered from the Yallourn Mine in Latrobe Valley, Victoria as part of the geological survey of Victoria being carried out by Alfred Selwyn. Otherwise known as the 'Yallourn Power Station', the Yallourn Mine is Australia's second largest mine. Yallourn Mine was first built in 1920, and since then it has been providing over 1 billion tonnes of Brown Coal to Australia every year. The Yallourn Mine is responsible for 22% of Victoria's electricity and 8% of Australia's electricity. As of 2021 the mine employs around 500 people. Due to ongoing maintenance issues and Australia's move to cleaner energy, the Yallourn Mine intends to shut down permanently as of 2028. Soon after gold was discovered in 1851, Victoria’s Governor La Trobe wrote to the Colonial Office in London, urging ‘the propriety of selecting and appointing as Mineral Surveyor for this Colony a gentleman possessed of the requisite qualifications and acquaintance with geological science and phenomena’. Alfred Selwyn was appointed geological surveyor in Australia in 1852 which began the Geological Survey of Victoria. In 1853-69 the Geological Survey issued under Selwyn's direction sixty-one geological maps and numerous reports; they were of such high standard that a writer in the Quarterly Journal of the Geological Society of London bracketed the survey with that of the United States of America as the best in the world. During his years spent in Australia, Selwyn collected numerous significant geological specimens, examples of which are held in collections such as the Burke Museum.Brown coal is considered to be an essential rock to Australia's energy consumption. Although plentiful in sources, Brown Coal is not able to be exported overseas due to its high moisture content. As Australia moves towards cleaner energy, Brown Coal is going become less used. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid hand-sized sedimentary rock that is a dark shade of brown.13 / BROWN COAL / Showing Woody structure / Locality: Yallourn, Vic. | Label probably / correct but / can't find reference / no. 13 to match in / registers. / C Willman / 15/4/21burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, yallourn, yallourn mine, victoria, coal, brown coal, brown coal specimen, alfred selwyn, geological survey of victoria, geological survey, yallourn power station

This AC generator operated for the State Electricity Commission in the Ballarat North Power Station prior to World War Two. James Oddie of Ballarat has an association with Thomas Parker of Elswell-Parker. In early 1887 Oddie arrived in England seeking information on electrical knowledge and its developments. At this time Henry Sutton was teaching Electricity and Magnetism at the Ballarat School of Mines. Oddie stayed in the United Kingdom for around three years and during that time became a close friend of Thomas Parker and his family. The two first met at the first official running of the Blackpool tram, and Oddie was invited to visit Parker at Wolverhampton. Over the years Thomas Parker kept newspaper cuttings (mainly Australian) relating to James Oddie and his work. The following article is a description of the Wolverhampton works by James Oddie, and was collected by Thomas Parker. After the dinner at Blackpool, Mr. Parker visited me, and cordially invited me to see his extensive works at Wolverhampton, an invitation I was not slow to avail myself of. This was the keynote of the best friendship I made in England. I went shortly afterwards and stayed several days, visiting the works daily, as Mr. Parker gave me the run of the whole works. There I ordered the installation of a 60 light dynamo, with a 28 cell storage battery and paraphernalia, now doing duty at the Observatory. I subsequently visited the works frequently, sometimes for a week at a time, and I regard it as the brightest spot in my English constellation. Mr. Parker started his works in 1880, with one man beside himself. He never had a single day’s instruction in electricity in his life; now he daily instructs between 300 and 400 employees, who worship him as a father. He is said to be now the most practical electrical engineer and mechanist in Europe. During one of my visits I took with me an artist, who is painting for me a portrait, 6 feet by 5 feet, of Mr. Parker, surrounded by dynamos, secondary batteries, measuring instruments etc. Electric tram cars are going to be a big thing in England. Parker’s Company Limited, is now, with three other companies, in the hands of the Electric Construction Company, with Mr. Parker as manager of the lot. The whole of the works will be taken to Wolverhampton. Before I left, a tender for £50,000 was accepted for the construction of new works.AC Generator painted read and black on a stand. This AC generator operated for the State Electricity Commission in the Ballarat North Power Station prior to World War Twogenerator, ac generator, elwell-parker ltd, state electricity commission, sec, ballarat north power station, james oddie, wolverhampton

Brown soft covered book. Contents include: Winning Brown Coal at Yallourn Dredge Operation for Overburden Removal Boiler Plant at the Yallourn Power Station Electrical Equipment at the Yallourn Power Station Steam Plant at the Yallourn Power Station Yallourn-Melbourne High Tension Line Yarraville Terminal Station Transmission distribution High Transmission Towers for River Crossing Sugarloaf-Rubicon Hydroelectric Development Briquette factory Subsidiary Activities at Yallourn Future Developments thompson's engineering & pipe co. ltd, briquettes, electricity, power generation, yallourn, yallourn briguetting works, transmission lines, high tension switchgear, insulators, australian porcelain company, substation, brown coal, high tension line, sugarloaf-rubicon, plans, suspension tower, transposition tower, yarraville terminal station, condenser, newport power station, gippsland, hydroelectric

geelong power station, steam turbine, engineers, electricity

A blue, soft, illustrated covered book.state electricity commission of victoria, anniversary, monash house, w.h. connolly, alexander fitzgerald, t.p. scott, b.j. callinan, yallourn, hazelwood power station, morwell power station, briquettes, morwell briquette works, water power, hydro-electric supply, rocky valley reservoir, electricity network, transmission statins, yallourn "w" power station, eildon reservoir

Access to the cottages at the lighthouse was difficult and the horse-drawn sled was in use until the 1940s. It was used to haul personal goods as wel as those needing medical attention at far-off Orbost. This photograph could be connected with the Gledhills in the 1930s when a medical emergency necessitated a removal to Orbost. Dr Nettleton was the doctor at Orbost at that time. (there could be a link through donor) Point Hicks is claimed to be Captain James Cook’s first sighting of mainland Australia. The lighthouse was built on the point during 1887 and 1888 and commenced operation in 1890, built from concrete and with timber keepers quarters. It was connected to mains electricity in 1965, and then to solar power recently. Originally access to Point Hicks was by sea. In 1920 a return trip, by land to Cann River, 47 kilometres away from the light station, took two days. By 1946 the journey had been reduced to 36 hours by a combination of horse and jeep. During the early 1950s it was still a 12-hour ordeal. The light no longer works, it was turned off 21 years ago and the Point Hicks lighthouse is now powered by a much smaller, more modern light. the lightkeepers' cottages are used for tourist accommodation.This photograph is associated with Point Hicks, a historically important lightstation in East Gippsland.A small black / white photograph of a horse dragging a sled with suitcases on it. There are seven people walking behind, one holding the reins. They are waalking through a sand dune.on label on back - "Bring Out to Light House keeper from Point Hicks"point-hicks-lighthouse

The State Electricity Commission of Victoria constructed the Kiewa Hydro Electric scheme from the 1930's to 1960's during which time power cables were made to carry power from the Power stations to the switch yards and beyond to the towns and houses.These sample power cables indicate the types of power lines used in the Kiewa Hydro Electric Scheme and the amount of voltage that they carry.3 transmission cables of different width used for transmitting different amounts of power on different size power lines.The thinnest cable consists of a centre piece of wire covered by a layer of twisted wires. The middle sized cable has 4 layers of twisted wires around the centre piece and the thickest cable has 5 layers of twisted wires around the centre piece.The thickest cable has a plastic strip with 330.000 Volt Cable inscribed on it.state electricity commission of victoria. power lines. cables. kiewa hydro electric scheme. electricity.

The State Electricity Commission of Victoria constructed the Kiewa Hydro Electric Scheme. Their public relations employees published booklets to promote the Scheme and the area. In this booklet there are photos of some of the major work constructions with an explanation of how they work and their purpose, a map of the Scheme and an article and photos of tourist facilities and activities that are available.This booklet promotes the Kiewa Hydro Electric Scheme and tourism indicating that tourism was recognised as a new industry for the area. The photos give a pictorial history of the area eg. skiing using the Summit T-bar lift and includes the facilities available at the time. The explanation of the Kiewa Hydro Electric Scheme is a basic resource for students interested in Hydro power.Slim booklet with photo of McKay Creek Power Station on the front cover and the title in brown and black at the top. Printed along the spine is State Electricity Commission of Victoria.state electricity commission of victoria. kiewa hydro electric scheme. tourism. t-bar ski tow. falls creek

The State Electricity Commission of Victoria published a journal every second month for all its workers throughout Victoria. Each 'project' reported their news, giving an update on work, sport, technical achievements, social gatherings, personal notices etc. The S.E.C. Journal included a regular section for the Kiewa Hydro Electric Scheme titled "Kiewa Keynotes" giving an insight into life & an update on the work on the project and the reporting of new clubs, services etc. being formed. It also reported on many of the people living there. Eg. Feb.-Mar. 1955 Cover "Packhorses get supply to Kiewa's survey outposts - Pg. 2. S.E.C.V. Journals covering the period of the Kiewa Hydro Electric Scheme. Each journal is about 33 pages with a soft card board or glossy paper cover. The earlier journals were plain with one colour and white , the later ones had a photo on the front. The journals were identified by Vol. & No. and months and year. Duplicate journals of S.E.C.V. journals covering the period from 1939, the 1940s. early to mid 1950s, mid to late 1970s and 1980s. Each of these journals have a pink tag indicating a reference to Mt Beauty.state electricity commission of victoria. kiewa hydro electric scheme. kiewa valley. bogong. mt beauty. dams. power stations.

W.D.Chapman had a keen interest in botany and was particularly interested in Eucalyptus species. He was first to discover the tree which now bears his name on his numerous visits to the Kiewa power station which is situated near the Bogong High Plains. He was a Commissioner and later the Chairman of the State Electricity Commission of Victoria, the organisation in charge of building the Kiewa Hydro Scheme. The tree is a cross between two eucalypts. The trees are unique as they cannot procreate. There were two 'Bogong Gum' trees. One at Cranky Charlies and one on the way up to the High Plains passed by the Ryder family on their way up.This plaque was beside the Falls Creek Road and indicated the location of the 'Bogong Gum' tree. The tree was burnt in the 2003 bush fires but survived only to be killed in the 2006 bush fires. There were two 'Bogong Gum' trees. One at Cranky Charlies and one on the way up to the High Plains passed by the Ryder family on their way up. Heavy bronze plaque embossed with inscription. On the back is a large rectangular steel piece bent at the bottom to form a 'U' shape. One end of the 'u' is attached to the plaque and the other end has two holes for bolts enabling the plaque to be attached near the tree. One bolt is in a hole."Type tree from which was first described the species / Bogong Gum / (Eucalyptus Chapmaniana, Cameron) / The species was identified by the / late Brigadier W. D. Chapman M.C.E., / D. Eng., M.I.E. Aust., M.I.C.E. Lond. Commissioner / of the State Electricity Commission / of Victoria from May 1944 to May 1955, / in his honour it was named."plaque; state electricity commission of victoria; w.d.chapman; eucalyptus; bogong gum tree; falls creek road

Clover Dam and Power Station were built by the State Electricity Commission of Victoria as part of the Kiewa Hydro Electric Scheme from the late 1930's to the early 1940's.This photo is part of the local history and was owned by Mr ad Mrs Gordon White, SECV employee and long time residents.White wooden frame coloured photo with white cardboard surrounds of Clover Power Station and Dam.clover dam; clover power station; bogong; kiewa hydro electric scheme;

The Kiewa Hydro Electric Scheme was constructed by the State Electricity of Victoria during the 1950s.The photos give an insight into the construction of the tunnels at the power stations on the KHES.5 black and white photos including: tunnel construction, concrete lining of tunnel, x 2 Dam construction Junction of Clover, Under ground power station McKay or West Kiewakiewa hydro electric scheme, power stations, secv

The State Electricity Commission of Victoria constructed the Kiewa Hydro Electric Scheme which included the townships of Bogong and Mount Beauty - from the late 1940s until 1961 The KHES changed the Kiewa Valley from a rural community to a construction community.Aerial photo of Tawonga South; Aerial photo of Tawonga South Aerial view of upper Kiewa Valley Clover P{ower Station / No. 3 Power Station Bogong High Country with snow Bogong Village / Lake Guy Lake Guy dam wall spilling with Bogong Village in background The interior of Lake Guy dam wall Bogong Village at night with lights reflecting in Lake Guy Bogong dam wall overflowing Pretty Valley Camp BHP Road to Rocky Valley The workers' camp at Clover Flat Unknown Two unknown men with a vehicle at the top of the Bright Gap note distance and elevations on sign posts and Royal auto signs on arrows SEC Workmen's Camp kiewa hudro electric scheme, a.n.barnes

Protective relays are one of the critical components of the elctrical power grid that serve to detect defective equipment or other dangerous or intolerable conditions and can either initiate or permit switching or simply provide an alarm to provide an alarm to provide a safer, more reliable delivery system. Used in power stations. The function of relay is to quickly remove from service any equipment that might suffer damage or otherwise affect the operation of the system. Relays protect the electrical system in 2 ways: Prevent failure or damage to electrical systems. Mitigate the effects of failure when it occurs. Switches that control other switches. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal.Used by the State Electricity Commission of Victoria for the Kiewa Hydro Electric Scheme in the power stations. Manually operated by remote control for an external circuit breaker. The relays were from a Kiewa Hydro Power Station control panel.Collection of black metal rectangular boxes (heavy) containing electrical wires forming a circuit. The longer, narrower rectangles have a bakelite knob at one end. Some of the boxes have one side of clear perspex and another has all sides of clear perspex. One is labelled "group relay". Another has windows with labels eg. 'turbine overspeed' 'emergency trip' and one has 3 steel knobs. - with 'stop', 'start'. One box is larger than the rest and has clear perspex side showing 'overcurrent relay' and workings.One has a plaque attached. Manufacture: "The English Co. Ltd. Londonpower circuits, electrical equipment, electric power control, power relays, power station, circuit breaker