The VDM-1202P multioperator rectifier welding unit is designed for furnishing the welding points of the manual arc welding with coated electrodes of the carbon and alloy steels products using the direct current. The rectifier can be also used in steady-state conditions completed with the RB – 302, RB-306 ballast resistors.
The rectifier welding unit is not regulated and has a rigid external characteristic.
The welding current regulation is made for a concrete point independently using a ballast resistor.
CHARACTERISTIC FEATURES AND ADVANTAGES
- simple design;
- high reliability and life cycle of work;
- welding current and voltage indication;
- availability of the circuit breaker assembly;
- operation at the temperatures – 40 °С to +50 °С;
- easy servicing and repair;
- N insulation class;
- to the maximum adapted to work in the exploitation severe duties.
The rectifier welding unit is composed of the powerful line transformer, the up-to-date rectifier module with the improved air cooling system. Using the up-to-date element base and materials allowed reducing materially the weight and dimensioning specifications, to increase the product service life and duration, to improve its maintainability.
As compared to the similar multioperator rectifiers, the VDM-1202P has the better technical and economic parameters, modern design, extended service life.
|Supply mains voltage, V||3х380|
|Supply mains frequency, Hz||50|
|Nominal welding current, А (at MF=100 %)||1250|
|Number of welding points, at most||8|
|Coefficient of the welding points work synchronism, at most||0.5|
|One welding point nominal welding current, А, at most||315|
|Closed-circuit voltage, V, at most||75|
|Energy input, at nominal current, kVA, at most||90|
|Electrode diameter, mm||3-6|
|Overall dimensions (LхWxH), mm||740х610х640|
|Weight, kg, at most||285|