Károly Zipernowsky (born as Carl Zipernowsky, 4 April 1853 in

Vienna Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...

– 29 November 1942 in

Budapest Budapest is the Capital city, capital and List of cities and towns of Hungary, most populous city of Hungary. It is the List of cities in the European Union by population within city limits, tenth-largest city in the European Union by popul ...

) was an

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

n-born Hungarian

electrical engineer Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...

. He invented the

transformer In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple Electrical network, circuits. A varying current in any coil of the transformer produces ...

with his colleagues ( Miksa Déri and

Ottó Bláthy Ottó Titusz Bláthy (11 August 1860 – 26 September 1939) was a Hungarian electrical engineer. During his career he became the co-inventor of the modern electric transformer, the voltage regulator, the AC watt-hour meter, the turbo genera ...

) at the famous Hungarian manufacturing company

Ganz Works The Ganz Machinery Works Holding is a Hungary, Hungarian holding company. Its products are related to rail transport, power generation, and water supply, among other industries. The original Ganz Works or Ganz ( or , ''Ganz companies'', formerly ...

and he contributed significantly with his works also to other AC technologies.

Biography

Zipernowsky, with

and Miksa Déri, all of Ganz and Company, were researching ways of increasing efficiency of electrical power transmission. They experimented with power supplies and current transformation, which led to the invention of the ZBD alternating current transformer in 1885. The ZBD system is based on a closed-iron ring core with an arbitrary diameter and a coil around the core, which conducts AC current. Their system converted higher voltage suitable for energy transmission to lower "''service''"-level voltage (step-down transformer).

Nikola Tesla Nikola Tesla (;"Tesla"
. ''Random House Webster's Unabridged Dictionary''. ; 10 July 1856 – 7 ...

then proposed the use of step-up transformers, which would output higher voltage than they received. This principle is widely used for power transmission over long distances all over the world.

References

External links

* Technical University of Budapest. "
Károly Zipernowsky
'". Budapest, 1996.

¨ 1853 births 1942 deaths Hungarian inventors Hungarian electrical engineers Hungarian expatriates in Austria Engineers from Austria-Hungary Inventors from Austria-Hungary Engineers from Vienna {{Hungary-engineer-stub