1947-07-03 — Page 8

For your new

Transformer

Specify

Ferranti

GILMAN & COMPANY LTD.

ENGINEERING DEPARTMENT Telephone

31146

THE CHINA MAIL, THURSDAY, JULY 3, 1947.

ENGINEERING PAGE

Power Transmission In Hong Kong

EST.

600

1834

district of Taun Wan, a road the power to your homes and the internal windings. The GEORGE COHEN SONS & CO., LTD.

small ridge on which is perched Hongkong Electric Co.. have, 140 three years.

.

In

tu

1

If one drives along the road however, only a few of those, reaching a transformer, can and towards Cantic Peak, near the needed to distribute, and Handle do cause severe damage to the China turns off to the right and climbs.factories of the colony. The China Light and Power Co.'s engineers past that steeply towards the Jubilen dam. Light and Power Co. have almost have found in the This road, Pineapple Pass, after 120 transformers in service with serious damage has been sustaiu-

behind A total output of somo a short distance, curves

40,000 cd on at least one of their out- KYA and, aft the laland, the door transformers every two Bub

The two power one of the main

Outdoor stations of the China Light and transformers with combined out-companies of the colony have of courau sustained nome losses in Power Co. It is here from this put of 60,000 KVA.

ag equipment collection of steel Inttice towers, Most of these transformers are transforming

build result of the Japanese occupation hung with insulators, that the housed within substation thin, threads of transmission lines ings, tucked

various although thanks to the farsighted Away swing dway across the hills far parts of the Colony. The supply policies they both followed in the out into the New Territories. It generated at the power stations building up of their distribution there lahore, should you choose to stop is brought through underground systems before the wax. the car and look through the steel cables at a medium potential af leases have not seriously impaired fencing, that you can Be sonic 6,000 volts to those aubstations the, smooth operation of

at points systems. transformers which which are located

Now transformers are of the few

on order from Britain and it is are working out of doors in the

telling, evidence of the usefulness Colony and are therefore canlly

of this type of plant to learn Inspected.

that British factories have such heavy orders that it takes nom tive years to

to deliver & medium sized transformer and anything from three to four years to transformera aucti deliver large

if by any chance you Bre moved to make this diversion on your way to the beach and you are not an engineer, you

will recognise the transformers with- nut much difficulty because they are the bulkiest pieces of equip ment within the compound. Large steel-clad tanks, with tubes curv ing from their sites and, on lup the tanks. tall ahiny brown porcelain bushings looking rather like child's

attempt at Christ- You wit

(1

inns trees isabondan

probably be

DISTINGUISHED BY SERVISE ned servant

ENGLISH

ELECTRIC

MOTORS

FOR EVERY INDUSTRIAL DRIVE

THE JARDINE ENGINEERING CORPORATION

14.16 PEDDER STREET, HONG KONG.

TELEPHONE 30311.

Fidelity Control

an exclusive, new feature in the great new range of Philips Radioplayers,

PHILIPS &

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SERVICE-SALES-DISTRIBUTION CENTRAL RADIO & ELECTRIC CO.

60 Nathan Road, Kowloon, 59814 007. Holland House, Hongkong, 81286,

that

you use

22,000 Volts

|

By A Special Correspondent

around which there

is eoncen-

trated demand for low voltage supply and within the trana- fermers, at these substations, the voltage is reduced to that use for the apparatus in house and factories.

Within The Tanks

or

voltage inga

n

$,000

their

an are psed on the British Grid

system.

AND ASSOCIATED COMPANIES BROWETT, LINDLEY, LTD.

E. H. HEWITT LTD., METAL MERCHANTS

THE HYGIENIC CHEMICAL CO., LTD.

T. C. JONES CO., LTD. STEELFOUNDERS & ENGINEERS LTD.

METALCLAD LTD.

K. & L.

PESTICIDE (DDT) LTD.

THE SELSON MACHINE TOOL CO. LTD.

Sole Agenta

REISS, BRADLEY & CO., LTD.

2 Queens Rd. C.

A Book On Water Power In The Past

This is

history of

National City Bank of New York Bldg.

an excellent sketch, of one in Heston; and there was water supply from one at work in Germany, near Surprise is

Supply

China, it is only to be expected

Within the tanks of the trans- formers the stential windinga and steel cores are immersed in consider the transformers some

This oil serves two what ugly, uninteresting pieces of special oil. apparatus; stolid and unmoving purposes; firstly it acts as an in-

sulator and

high prevents the surfaces with no glittering

the wind- longing, from whirling parts. But it is as weil without

to the steel case. Secondly you should know ibis plece of apparatus ther it assists in keeping the windings would be no transmission line for cool, much as does the water rehistoric times. It deliberate Bremen, in 1946. existence In

the radiator of your car. During it la within these selfsame tanks Japanese occupation many fly excludes the most recent de- shown, at their that the electric energy from the total manufacturers of bril- | velopments and; Indeed, only Japan, but they are well known i

the the station is power

transformed the from the taine and anity con-

con- linntine and other people in need gives 18 pages to the Nineteenth in China, and are mentioned in in your of cooking oil, found ready Century, the object being in por- Chinese literature of the Fourth Century BC. As practically all home into a

furious energy of made supply by stealing oil from

Japanese technique came from the transformers. The Hongkong The Story of Water high potential which can leup

Electric estimate that some 5,000

in along the long distances of the transmission lines with little fo34 gallons of oil were drained from..

their transformer tanks, Aftor of energy.

the

reoccupation both themselves and the China Light and Power At Tsun Won the transformers Co. found many of their trans- raise the voltage from 0,000 to formers only half fall of oil. 22,000 suits and, at this potential, is a real tribute to the design of our servant has to be handled these transformers that, in spite with care. The porcelain bushings, of this loss of oil, they continued or terminals, indicate this change to carry load, in many cases for

than

twelve in his nature for it is only by the periods of more ure of these lengthy and robust months without breakdown.

The Static Transformer, to use pieces of insulating material that 11 is

fuil name, possible to bring 22,000 volts its

is an extremely from inside the tanks and lead reliable piece of equipment al them is the transmission lines. though in those cases where it is Without this transformation the connected to overhead lines, as y transmission towers, in order to the Now Territories, care has to

the effect's ung possible, from power, would need to be

hung

to with

cables of copper lightning strokes, on or near huge

strokes induce thicker than a man's leg; an im- the lines. These possibly uneconomic arrangement. fast travelling impulses of ex These three transformera stanri-ceptionally high voltage which ing out there in the open are, flash along the lines and, upon

By F. W. ROBINS. Oxford University

Press

that they would be found Japan, where Chinese books des- cribing them are quite common. Incidentally, the mention of deep wella, might have included reference to the old Chinese brine wells.

any technical aims, the matter is great work on so well collected and covers 69 water-lifting devices, which, al-

large n range, both in time and though making tho same amount of be taken to protect it, as far as

Notable Wartime Invention

Manufacturers of the Elec- thumatic Neutraliser, which was advertused in these pages last

Jubilee Of The Electron

of

the Jike reach of

H.K.'s New

Building Blocks

Tels: 28006/7

ELECTRO- NEUTRALIZER STOPS SCALE

WITHOUT THE USE OF CHEMICALS

A Badly Scaled Tubo

A Badly Bealed Tube

a

on

Local manufacture has begun

only

Such captions criticism secins tray the evolution of the sub- an ungrateful reception of the wealth of matter which Mr. Ho- ject prior to the modern period. bing has so well collected and While Mr. Robing is not an en- expounded. He does not displace gineer and expressly disclaims from Its pedestal Ewbank's!

the history of

the common space, that it cannot fail to arouse fault of exaggerating the anti- the Interest of any reader con- quity of certain of them and cerned with water engineering.

wrongly) gueraing (usually The author points out that, where knowledge is lacking, le before the invention of water- still the best book on this sub- carrying vessels, primitive men jeet bot, while he would,

t have stayed,

probably disclaim any Inten animals, within

tion to compete with it, he has stream or other source of water. produced a survey which, The next stage was the storage the whole, is excellent, of water or digging for that stored below the surface, and so to, the well. Thereafter depelop ed irrigation and water-lifting. and the formation of water tun- hels and underground cisterns. The methods of ancient Greece, the water system of ancient Rome, and the development of Water systems in the Roman turn, "Professor Joseph J. Thomson Empire are discussed in week, clain that this notable made the first public announce followed by the reversion to well the supply in the Dark and Mid- wartime 'invention has solved ment of the existence of

electron at a meeting of the die agca, with some Interesting. many boller, problems in Indus Royal Institution in London on remarks concerning holy well block made of cement

of Cell-O-Crete, a light, building and of trial plants.

very small cellular structure. This Neutralizers, by their unique April 30, 1897, and, at the same and monastery wells. The de

ช action. eliminate the necessity time, gave an approximate es-velopment of leats and conduits type of block is widely used

are considered next; then comb, Europa and America for building for frequent water, analysis, timate of its mass.

This outstanding event in the references to water sellers and purposes and for insulation, but chemical treatment; the turbin-

water wheels and it now in Hongkong where ing of tubes and other mechani-history of physics is to be cele-carriers, cal means of scale removal. The brated somewhat belatedly by a wooden pipes, the control) of the manufacturing has started

recently at Wong Chuk Hang series of lectures and other village well and the parish pump Path near Aberdeen. nction is completely Automatic.

of The functions, which are being brand, finally, the beginning of The insulating capacity requiring no attention.

Institute of power systems by which water these blocks makes

them out. electro-deposition effcet of the ranged by tho Electro-Neutralizers is obtained Physics and the Physical So- could be supplied over large

for cold storage plants, standing clety, in collaboration with the areas.

refrigerated rooms, etc. inasmuch through a combination

2 cork layer can be replace i metals of different potentials. Institution of Electrical En-

Enormous Field by 3" Cell-O-Crete with the same This attraats all free oxygen in gineers, to take place in Lon

The field from which Mr insulating effect. the boller and corrosion takes don on Thursday and Friday,

Robins draws is enormous' and For construction work this type Soptember 26 and 26. place on the negative poles of

An exhibition demonstrating it is quite natural that lie should of block is particularly useful in the Neutralizer instead of on the great influence that this dia- have omitted many things and concreto slabs of the boiler metal.

Electro-Neutralizers will not covery in pure physics has had committed a few minor errors.with Cell-O-Crete filling, reducing only prevent the formation of on the life of the community He may be readily forgiven for the coat, the weight and making new scale but create a water will also be opened at the spelling Tibetan" with an "h," the slab soundproof between It is also used for partition condition that gradually - Science Museum, South Ken- but less readily for confusing moves old seale now in the sya-sington, on Friday, September the augleh with the "Persian walls to great advantages since tem. The action of this Neu- 26, and will remain open about wheel" the latter term should it saves space and its light weight be confined to the za'ura. He does not load unnecessarily the three months... tralizer is not limited to the

also states that the saqloh oc-concrete structure- or slab

Special care is taken by the boller itself, but extende

Cathode Rays

curs in Mexico, without remark- throughout the entire stream

ing at such examples were in-munufacturers system-protecting valves, seats Before Thomson's discovery, and traps from pitting and cor- cathode rays had been exten troduced by the Spaniards. Chi-blocks in their godownie before are credited delivery in order to avoid contrac acso chain pomps

after any kind of plaster has tion sively studied for some 15 or

been applied on walls built with Electro-Neutralizer has been 20 years. It was his genius, with 8,000 years of life, where adapted for motor vehicles, however, which enabled him to as they are barely 1,500 years Cell-0.Crete. where it performs the atomo im- grasp what, was important in old..

"Early The manufacturers use Greon.

Inland cement and the compres portant function-the extrac- the confusing and almost con- Chapter XX, en

of Cell-O-Orete tion from the water those tradictory clues which experi- America, is very interesting, sive strength minerals and impurities that ment had made available; and but not sufficient emphasis is block averages, 330 lbs por sg. In. or more for tho cause radiator pitting, scaling, to carry out the final experi- placed on the complete..absence for the light Insulating block rust, corrosion and the eventualment which demonstrated be of wheel-hoisting devices in pre- and, 380 lbs

Cell-O-Grote can be manufac clogged pipes all of which add yond all reasonable doubt that Columban America, which com- heavier construction type of block. up to unnecessary repair bills. cathode rays conalsted of nega pelled the use of stairways

alf down to, the cenotes or subter-turod in blocks of any shapes and All Electro-Neutralizers are tively-charged, particles,

mortar. At present the standard sold on a guarantee that in- alike and all much smaller than rancan reservoirs, The limited is or simply cast as ordinary surca satisfaction in your own the smallest particle hitherto spread of the wheel is rather size adopted for Insulating, and boller room, or motor vehicles, known to science the atom of curious; Egyptian chips, even in building purposes in 1818 under your own conditions, hydrogen, get the 18th Dynasty, had no pul x 4" thickness. The density of

Coil-O-Creta varÍCH Test them in the toughest spots, It is typical of the upward leys in their running rigging, they will prove that your boller sweep of Thomson's miss Chinese Technique to 30 the post 20

Call-O-Crete offers! problems can be solved easily, that, in his lecture, ho also Reference is made to the wide vantages for instance, I can te quicky and at amazingly low foreshadowed the electron distribution of the shadur, but sawed as easily as wood, it will coot! This guarantee can only theory of matter which has do apparently Mr.Robins-has-otraust heat up to 2000 Centigrade; be given with products that minated physical research for observed Cecil Roberta's notloo, I mynd absorbing and in- have stood" rigid "testa::::: the past 50 years.

In his book And So To: Bath, anlating..

rosion.

floors.

rib type

to curo

the

ad

IN BOILERS - CONDENSERS

EVAPORATORS

INTERNAL Combustion MOTORS

DIESEL INSTALLATIONS

HOT WATER SYSTEMS

For further information apply to:-

MUTUAL CO-OPERATIVE CO.

Room 101, Bank of East Aela Building,

Distributors

Announcing.

Tel. 20688.

CELL O CRETE

Light insulating blocks made in cement for HEAT, COLD and SOUND Insulation for ROOF, WALLS, PARTITIONS, etc.

Insulating and Building Materials,

actory: Wong Clink Hang Path, Aberdeen (IT.K.)

Enquiries; Room, 504, Bank of China Bldg.

Phone: 20064%)