One-phase transformer TDM-402 U2 with falling external characteristics is used to supply one welding station with alternating current with frequency 50 Hz at manual arc welding, cutting and surfacing of metals with covered metal electrodes.
The transformer is equipped with an arc burn stabilisation device of USGD-3U2-100 or SDI-01 type, designed to maintain stable arc burn at manual arc welding with fusion electrode for AC (ANO-4, ANO-6, MR-3, etc.) and DC (UONI-13/45, UONI-13/55, OZL-8, VI-10-6, etc.).
The transformer can be equipped with argon-arc welding unit BAS-01 for welding of aluminium and its alloys with non-melting electrode in those cases when initial arc ignition by contact method is allowed.
The transformer is designed for operation in areas with moderate climate in the open air under a canopy under the following conditions:
-height above sea level not more than 1000 m;
- ambient temperature from -...
Specifications
Rated welding current
400
Length
585 mm
Rated supply voltage
380 thousand m³
Frequency
SBVVBG kg
Power consumption, max.
3 l
Small welding current control limits in the range of
65...220
Large welding current control limits in the range of
180...460
Primary current, design current
70
No-load voltage of small currents in the range of
80 thousand m³
No-load voltage of high currents in the range of
60 thousand m³
Rated operating voltage
NZ-150-14,5 thousand m³
Rated load duration, PU
60 set
Welding cycle time
5
Efficiency factor, not less than
84 set
Degree of protection
IP22
Insulation class
?
Total average transformer service life, not less
5 kVAr
Width
555 mm
Height
850 mm
Weight, not more
150 m² living area
Class of protection method against electric shock
1
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