ET22 is a direct-current freight and passenger electric locomotive built in Poland at the Pafawag plant in Wroclaw for PKP .
| ET22 | |
|---|---|
 | |
| Production | |
| Country of construction | People's Republic of Poland |
| Factory | Pafawag |
| Years of construction | 1969 - 1989 |
| Total built | 1183 |
| Technical details | |
| Axial formula | 3 O -3 O |
| Full Service Weight | 114 t |
| Rail axle load | 19 t |
| Locomotive length | 19240 mm |
| Wheel diameter | 1250 mm |
| Track width | 1435 mm |
| Hour power of TED | 3120 kW |
| Continuous power TED | 3000 kW |
| Continuous traction | 42 t |
| Construction speed | 125 km / h |
| Exploitation | |
| A country | Poland |
| Company | |
| Period | - |
In the 1960s, the fast electrification of Polish railways required PKP's electric locomotives. The ET21 electric locomotive produced since 1957 could not fully satisfy the need for transportation, since it had a low power. It was necessary to use a pair of these electric locomotives, which led to a shortage of locomotive fleet . In this regard, in 1965-1966 the basic technical requirements for a new electric locomotive were determined. The first ET22 electric locomotive was manufactured in 1969 .
After testing and further development of the design in 1971, the mass production of electric locomotives began.
Braking system - Oerlikon automatic brake and direct-acting brake. On the buffer bar - buffers and screw hitch .
In 1977, two modernized electric locomotives were manufactured. Structurally, their integration into a system of two electric locomotives ( SMET ) was provided, but these locomotives never worked together, since their high total power was higher than traction substations allowed.
Many units and elements of EU07 were used in the construction and design of electric locomotives, primarily traction motors , Alstom type traction gear, traction gear ratio (79:18).
In 1973, an electric locomotive was built with a design speed of 160 km / h. It has been designated as EP23 .
Five electric locomotive with tail numbers 093, 165, 202, 592 and 1118 has a permit for operation on the railways of Slovakia . To do this, it was necessary to replace the copper inserts on pantographs with graphite ones .
The ET22 electric locomotive can drive a train weighing 2700 tons at a speed of 80 km / h or a train weighing 3150 tons at a speed of 70 km / h. With a passenger train weighing 700 tons (about 12 cars), an electric locomotive can reach a speed of 125 km / h.
The electric locomotive is mainly used for freight transportation, but it is also used in passenger traffic on a heavy profile or with long trains
The Polish locomotive locomotive received the nickname "bull" or "Helmut".
One of the electric locomotives is located in the railway museum of industry and railways in the city of Jaworzyna Slaska . The remaining ET22 electric locomotives are in operation at the locomotive depots of Bialystok , Bydgoszcz , Czechowice-Dziedzice , Chervensk , Gdynia , Katowice , Krakow , Lublin , Lazy , Lodz , Ostrow Wielkopolski , Poznan , Skarzysko-Kamenna , Szczecin , Warsaw , Wroc .