Welding machine B50AC (K355AM)
Suspension-type welder B50AC (К355АМ) of МСО-4501U1 type is designed for contact flash-butt welding by pulsating flashing of rails with cross-section ranging from 6400 to 10000 mm2 and for field flash trimming right after welding. The welder can be powered from AC mains, diesel-generator plant and motor-generator set.
The complete set of delivery includes
1. Welder
2. Control Cabinet
2.1. Power system
3. Pump station
4. Water cooling plant
5. Electric connectors
6. Hydraulic connectors
Technical features
| Parameter | Value |
|---|---|
| Power supply rated voltage (mains), V Power supply rated voltage (diesel-driven generator set), V | 380 400 - 440 |
| Number of main phases (power supply) | 2 |
| Number of auxiliary circuitry phases | 3 |
| Power supply: rated frequency, Hz | 50 |
| Rated primary circuit current, A | 395 |
| Power at 50% duty cycle, kVA | 170 |
| Duty cycle of the welding transformers at rated load, %, not exceeding | 50 |
| Arrangement of the welding transformers' connection to the mains | phase-to-phase |
| Transformation coefficient of the welding transformers | 60±0,5 |
| Rated secondary circuit current (continuous), kA | 18+3-2 |
| Short-circuit current at minimum distance between the clamps, kA At that, short-circuit resistance, mOhm, not exceeding | 65±10% 105 |
| Maximum short-circuit power consumption, kVA | 500±55 |
| Short-circuit power factor | 0,5 |
| Maximum allowed continuous power, kVA | 120 |
| Rated power consumption from the mains, kVA | 210 |
| Power consumed by the auxiliary circuitry from a 3-phase AC supply, kVA, not exceeding | 40 |
| Upset force at a pressure in hydraulic system of 15.0 MPa (150 kgf/cm2), MN/kgf | 0.68/68000±8% |
| Maximum cross section of welded rails, mm2 | 10000 |
| Time needed for welding rails with cross section of 8,265 mm2, given out-of-squareness not exceeding 2 mm, s | 90-180 |
| Clamping and upsetting devices | hydraulic-powered |
| Pressure in the hydraulic system, MPa (kgf/cm2) | 15 (150) |
| Pump station capacity, l/min, not below | 60 |
| Maximum clamping force at a pressure in hydraulic system of 15 MPa (150 kgf/cm2), MN (kgf) | 1.85(185000) |
| Upset value, mm, max. | 15 |
| Upset rate, mm/s, minimum | 60 |
| Flashing speed, mm/s | 0.2-2.0 |
| Total travel of welder at 15-mm upset, mm | 90 |
| Rated capacity at welding rails with cross section of 8,265 mm2, joints per hour | 13 |
| Cooling water flow at a pressure of 0,15 MPa (1,5 kgf/cm2), l/min | |
| through the welder jacket, not below | 25 |
| through the pump station jacket, not below | 40 |
| Welder weight, kg, max. | 2700 |
| Pump station weight, kg, max. | 590 |
| Control cabinet weight, kg, max | 450 |
| Mounting kit weight, kg, max | 235 |