MFPI 4.83/621.D (3 bushing splitted capacity) by Maschinenfabrik Reinhausen (MR)
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The Maschinenfabrik Reinhausen part number MFPI 4.83/621.D is a single-phase capacitor featuring a splitted capacitance design with a rated output of 310.5 plus 310.5 kvar, totaling 621 kvar at a rated voltage of 4.83 kV rms and a frequency of 50 Hz. Built for vertical mounting positions, this unit incorporates a robust stainless steel case finished in RAL 7030 color with dimensions of 453 by 190 by 1060 mm and includes bushings with a 280 mm creepage distance. It delivers a capacitance of 2 x 42.37 microfarads and a rated current of 128.57 A. For electrical integrity and safety, the MFPI 4.83/621.D provides an insulation level of 28/75 kV BIL alongside an internal discharge resistor that reduces residual voltage to under 75 V after 10 minutes. Dielectric testing parameters consist of 19.32 kV DC for 10 seconds between terminals and 28 kV AC for 10 seconds between terminals and the case, while operating reliably within a -25 to +55°C temperature category.
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Characteristics
| Manufacturer | Maschinenfabrik Reinhausen (MR) |
|---|---|
| Part number | MFPI 4.83/621.D (3 bushing splitted capacity) |
| Inner Code | 4425331 |
Technical specification
| Product type | Maschinenfabrik Reinhausen Split Capacity Bushing |
|---|---|
| Rated output Qn | 310,5 + 310,5 kvar = 621 kvar |
| Rated voltage Un | 4,83 kV rms |
| Insulation level | 28/75 kV BIL |
| Capacitance Cn | 2 x 42,37 μF |
| Rated current In | 128,57 A |
| Frequency fn | 50 Hz |
| Temperature category | -25/+55°C |
| Discharge resistor | Internal (Ur<75V after 10 min) |
| Creepage distance bushings | 280 mm |
| Case material | stainless steel |
| Mounting position | vertical |
| Testing Terminal/Terminal | 19,32 kV DC-10 s |
| Testing Terminal/Case | 28 kV AC -10 s |
| Color | RAL 7030 |
| Dimensions | 453*190*1060mm |
| Connection | single phase (splitted capacitance) |