SŽD series ВЛ62
| SŽD series ВЛ62 (WL62) | |
|---|---|
| Numbering: | SŽD ВЛ62.001–002 |
| Number: | 2 |
| Manufacturer: | Electric locomotive factory Novocherkassk |
| Year of construction (s): | 1961-1963 |
| Axis formula : | Co'Co ' |
| Gauge : | 1,520 mm |
| Length over coupling: | 20,800 mm |
| Service mass: | 138 t |
| Friction mass: | 138 t |
| Wheel set mass : | 23 t |
| Top speed: | 100 km / h |
| Hourly output : | 4,632 kW |
| Continuous output : | 3,450 kW |
| Driving wheel diameter: | 1,250 mm |
| Power system : | 25 kV 50 Hz ~ |
| Power transmission: | Overhead line |
| Number of traction motors: | 6th |
| Brake: | Air brake |
| Control: | High voltage power transmission with diode control |
| Particularities: | 1. SŽD locomotive with converter and rectifier made from semiconductor technology |
The SŽD series ВЛ62 (German transcription WL 62 ) of the Soviet Railways (SŽD) was a six-axle test electric locomotive for operation on main lines with alternating current . It was developed as a modification of the SŽD series ВЛ60 and was the first locomotive made in the USSR to have a rectifier made from semiconductor technology . The experience gained with the locomotive was applied to capital repairs on other electric locomotives of the USSR (ВЛ60, ВЛ80 ). In addition, the locomotive had power regulation based on high voltage.
History and construction
Regardless of the fact that at the beginning of the 1960s the SŽD electric locomotives with rectifier units consisting of ignitrones were working extremely successfully (e.g. the ВЛ60 and ВЛ61 series ), the designers were well aware of the structural inadequacies of these series; the large and bulky dimensions of this construction, the cooling system that could only be realized with cooling liquid, and this resulted in the low interval of the working temperature (it was only 35 ° C). At that time, rectifiers made from semiconductor technology based on silicon had smaller dimensions, they had a very wide operating temperature range (up to 140 ° C), and their high efficiency enabled air cooling to be used. In addition, they were not sensitive to vibrations and violent accelerations or decelerations.
Therefore, the Ministry of Transport and Communications of the former USSR placed an order with the All-Russian Scientific Research and Development Institute for Electric Locomotives ЭлНИИ ( ELNII , now ВЭлНИИ - WELNII ) in Novocherkassk to develop a project for a six-axle freight train electric locomotive for alternating current with semiconductor technology silicon-based for the rectifier . Each of the six traction motors of the locomotive received its own rectifier.
In addition, the locomotive was designed with a high-voltage control system, which was not yet common in the USSR at the time . In February 1960 the project at ЭлНИИ ( ELNII ) was completed. The vehicle part, the traction drive motors, the auxiliary machines and various devices were taken over from the ВЛ60. At the same time, a project for low-voltage regulation was created, which allowed the transformer with the designation ОЦР-5600/25 ( OZR-5600/25 ) used in the ВЛ60 to be used while simultaneously using semiconductor technology for the rectifier. In the existing project the traction motors of the designation НБ-413 ( NB-413 ) with 950 V were used, which were used from the locomotives of the ВЛ80 series . In June 1960, two technical projects were created, and the Novocherkassk electric locomotive factory began building two test locomotives, which were given the designation ВЛ62 ( WL62 ). In December 1961 the assembly of the electrical equipment was completed. In November 1962, the factory handed over to the Ministry of Transport and Communication Services ( MPS ), the locomotive ВЛ62.001 and in April 1963, the ВЛ62.002 .
business
First the locomotives had to do test drives on the test ring of the plant, during which they had to move loads with a mass of 5,000 t to 6,000 t. After these tests, the rectifiers were changed, the number of parallel branches in each leaf increased by 1.5 times (from 8 to 12). At the beginning of 1963 the locomotives were given to the Kawkasskaya depot of the Severo-Kawkasskaya zheleznaja doroga . The two locomotives were able to clearly demonstrate the advantages of the silicon rectifier, as a result of which the delivery of the locomotives ВЛ60 K and ВЛ60 P with analog rectifier systems was started as early as 1962 . The only difference was the design of the rectifiers as group rectifiers (one rectifier for a bogie). In 1963 the ВЛ80 K series locomotives also received these facilities. The ventilation turned out to be inadequate, especially with the arrangement of the air ducts, which led to contamination of the interior during snowfall and sandstorms from outside.
As for the power equipment of the locomotives, the locomotive ВЛ62.001 showed itself with 32 speed steps, the ВЛ62.002 had only seven. The high-voltage control scheme at the Novocherkassk electric locomotive factory was not yet fully developed, only the imported locomotives used this form of power regulation (series Ф , К and ЧС ). The ВЛ62.001 was soon handed over to the factory for modernization. In 1967 the ВЛ62.002 was also shut down due to the damage to the smoothing reactor . In 1969 both locomotives were removed from the MPS inventory lists.
See also
Web links
literature
- Vitaly Alexandrovich Rakov: Lokomotivy otetschestvennych zhelesnych dorog. 1956–1975 gg . Transport, Moskva 1999, ISBN 5-277-02012-8 .