IE A062COMMISSION REPORT OF THE BULGARIAN STATE RAILWAYS
Locomotive 45-185 compressor: faster charging, lower current
The compressor again pressurized the system faster, motor current dropped across all modes. 33 % — time to charge the air system from 7 to 8 atm, 37 → 25 s; 6.1–12.7 % — compressor motor current, 80–118 → 74–103 A (2003).
locomotive 45-185operating parameters recorded on compressor No. 2
BDZh EAD, Sofia
Key results
| EQUIPMENT AND UNIT | MILEAGE AFTER TREATMENT | WHAT WAS MEASURED |
|---|---|---|
| Locomotive 45-185, air compressor No. 2 | 20 800 km | Time to charge the air system from 7 to 8 atm; motor current at start-up, after 5 s of running and before shutdown |
Air compressor No. 2 — before treatment and after 20 800 km of service
| PARAMETER | BEFORE TREATMENT | AFTER SERVICE | CHANGE |
|---|---|---|---|
| Time to charge the air system from 7 to 8 atm | 37 s | 25 s | −12 s · 33 % |
| Motor start-up current | 118 A | 103 A | −15 A · 12.7 % |
| Current after 5 s of running | 80 A | 74 A | −6 A · 7.5 % |
| Current before shutdown | 98 A | 92 A | −6 A · 6.1 % |
All measurements were taken by the commission of the enterprise on compressor No. 2 of locomotive 45-185, in one and the same operating mode before the treatment and after the service run.
Commission conclusion
Current equivalent
Revitalizant gel for compressors and bearings →
Piston, screw and centrifugal compressors; rolling and sliding bearings running in an oil bath; machine-tool spindle units and slideways.
How such units are treated:
About this result:
Limits of this report: The results refer to the air compressor of locomotive 45-185 of BDZh EAD and to its operating conditions; on other equipment and in other modes the figures may differ.