IE B026REPORT ON THE USE OF XADO GREASE IN ELECTRIC MOTOR BEARINGS · 2004
Network pump drive: bearing lubrication cut the current draw
No-load current draw decreased across all phases, the motor was not taken out of service. 5 % — current draw at no load, 64.5–66.5 → 59.7–63.7 A (2004).
Networks utility, 2004
Key result
| EQUIPMENT | DUTY AND OPERATING TIME | WHAT WAS MEASURED |
|---|---|---|
| Electric motor of the SN-2 network pump drive, No. 314 bearings, “Severnaya-3” boiler house | Round-the-clock operation; 720 h after treatment until the control measurement | Current draw on phases A, B, C under identical duty before and after |
Motor current draw by phase
| PHASE | BEFORE TREATMENT | AFTER 720 H | CHANGE |
|---|---|---|---|
| Phase A | 66.5 A | 63.7 A | −4.2 % |
| Phase B | 64.5 A | 59.7 A | −7.4 % |
| Phase C | 65.3 A | 62.0 A | −5.1 % |
Measured with an ATK 2200 digital instrument at no load, before treatment and at 720 hours of operation. In the conclusions of the report the reduction is assessed at 5 %.
Economic assessment per the calculation in the report
| INDICATOR | VALUE PER THE REPORT |
|---|---|
| Electricity cost per month before treatment | 11340 UAH |
| Electricity cost per month after treatment | 10773 UAH |
| Saving on a single electric motor | 567 UAH/month |
| Cost of treating one electric motor | 92 UAH |
| Payback period of the treatment | 5 days |
The calculation was made by the commission in the report: round-the-clock operation, rated power draw 75 kW, tariff 0.21 UAH per kWh at 2004 prices.
Conclusions of the commission
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 relate to the electric motor of the SN-2 network pump drive at the “Severnaya-3” boiler house and to the No. 314 bearings; on other equipment and under other duties the figures may differ. The economic part is given per the calculation in the report at 2004 prices.