Liquid-cooled three-phase mains choke 8% Uk
Description
Water-cooled Chokes are available in IP protection classes from IP00 to IP65. REO offers various types of water cooling for these components. The targeted dissipation of losses via the cooling circuit prevents their transfer to the environment. By using water cooling, component temperatures can be significantly reduced – this means less stress on insulation materials and an extended service life. REO’s special technology enables excellent heat distribution, thus preventing the formation of so-called hot spots.
Benefits
- Protection class up to IP 65
- Longer lifetime
- Optimal heat dissipation
- Suitable for railway applications
Technical data
- Insulation class: F
- Cooling medium: water/glycol (other cooling liquids on request)
- Max. Coolant inlet temperature: 50° C
- Rated voltage : 400 V
- Rated Current: 200 – 1200 A
- Inductance: 0.012 – 0.074 mH
| Type | Rated voltage [V] | Rated current [A] | Uk | Linear up to | Inductance [μH] | R20 [mΩ] | Winding weight [kg] |
| NTT MD 953/200 | 3 x 400 (optional 3×690) | 200 | 8% | 300 | 74 | 2,1 | 7 |
| NTT MD 953/400 | 3 x 400 (optional 3×690) | 400 | 8% | 600 | 37 | 0,96 | 11 |
| NTT MD 953/600 | 3 x 400 (optional 3×690) | 600 | 8% | 900 | 25 | 0,49 | 15 |
| NTT MD 953/800 | 3 x 400 (optional 3×690) | 800 | 8% | 1200 | 18 | 0,4 | 19 |
| NTT MD 953/1000 | 3 x 400 (optional 3×690) | 1000 | 8% | 1500 | 15 | 0,3 | 18 |
| NTT MD 953/1200 | 3 x 400 (optional 3×690) | 1200 | 8% | 1800 | 12 | 0,18 | 32 |
