THE TREND IS TO GENERAL ELECTRIC ANNOUNCES
...
NEW
Bus assemblies for direct-water cooling of germanium rectifier cells are shown (above) in a General Electric germanium rectifier. Cutaway view (left) of a section of the bus assembly shows how water flows over the cooling pins to remove heat generated in the germanium cell, while the hollow bus serves as conductor for both water and current.
M O R E T H A N 4 0 GENERAL ELECTRIC CHEMICAL Hydrogen-oxygen production, 30,000 amps, 65 volts Hydrogen-oxygen production, 15,000 amps, 65 volts
INSTALLATIONS STEEL MILL
Tinning, 10,000 amps. 12 volts «·. » ·*« M M Tinning, 10,000 amps, Chlorine production, 15 volts 30,000 amps, 150 volts ,, ... • Electrolytic c l e a n i n g , For further information, circle number 56 A on Readers' Service Card, page 139 À 10,000 amps, 30 volts
Fluorine cell condittoning, 4,000 amps, 75 volts
Hydrogen produclion, 16,000 amps, 65 volts Hydrogen production, 12,000 amps, 68 volts
METALLIC
RECTIFIERS
D e s i g n in W a t e r - c o o l e d G e r m a n i u m Rectifiers... makes units smaller, more r e l i a b l e , easier to m a i n t a i n Germanium rectifiers have established themselves as an economical and reliable source of large amounts of d-c power for many industrial processes. B u t cool ing technique has always been an important design consideration. Now, from a vast amount of application experience based on more t h a n 40 General Klectric germanium rectifier installations (more t h a n 25,000 kw), General Klectric has developed an effective new concept in direct-water cooling of germanium rectifier cells. T h e main feature of this advanced design is a hollow bus bar, which serves as a conductor of both water and current. This unique concept results in a smaller, more-reliable unit, which is easier to maintain. Designed especially for such applications as gas production, steel-strip cleaning and tinning, electro plating, and metal refining, General Electric watercooled germanium rectifiers offer many cost-reducing advantages over other types of power-conversion equipment, including: 1. Reliability—no moving parts 2. Lower first cost 3. Lower installation cost—smaller, lighter, free of vibration, no special foundation required 4. Lower power cost—operating efficiency as high as 95 per cent
5. Less maintenance—no bearings or rotating parts General Electric water-cooled germanium rectifiers are available in ratings up to 150 volts. And for some special applications, General Electric's complete line u p also offers air-cooled germanium as well as selenium and silicon rectifiers. For more information on G-E germanium rectifiers, contact your nearest General Electric Apparatus Sales Office, or write for bulletin GEA-6375 to Section 462-14, General Electric Company, Schenectady, Ν . Υ.
STAINLESS S T E E L
WELDED SEAM
CERAMIC BRAZED STEELCERAMIC BOND
GERMANIUM W A F E R '
COPPER CONTACT
E v e r y G e n e r a ! Electric g e r m a n i u m cell is h e r m e t i c a l l y s e a l e d in a w e l d e d , stainless-steel-ceramic housing for protection from water a n d corrosion.
Progress is Our Most importent Product
GENERAL
ELECTRIC
IN OPERATION—TOTALING MORE THAN 2 5 , 0 0 0 KW ELECTROPLATING Anodizing, 40,000 amps, 24 volts Chromium plating, 45,0 0 0 amps, 12 volts
Chromium plating, 160,0 0 0 amps, 15 and 18 volts Anodizing, 20,000 amps, 24 volts
METAL REFINING Aluminum pot line, 9 0 , 000 amps, 65 volts
amps, 125 volts
Tin
Copper refining, 12,000 amps, 75 volts
reclamation,
800
