- Thyristorised
closed loop feed-back current control to maintain stable welding
current.
- Provides
spatterless Radiographic quality welding.
- Unique filter
design to ensure low ripple level and outout current variation
within International Welding Standards.
- Efficient and
compact power source design with enhanced power factor. Consumes
less KVA
- Electronically controlled tripping circuitry to ensure
safety tripping against short circuiting of output terminals
beyond 30 seconds, over heating of Heat Sinks, transformer coils
and failure of cooling media.
- Positive Arc
starting facility to help easy arc starting and prevention of
electrode freezing apart from deep penetration welding.
- Sturdy Remote
Current Control Pendant with Hot Start facilty which provides
additional current for a short period to remelt the craters from
the previous electrode avoiding slag inclusion, available at the
finger tips of the operator.
- Most ideal
static current- voltage characteristics to suit varied welding
applications.
- Automatic Arc
Force Control System for adjustment of short circuit current and
arc characteristics.
- PULSE TIG
WELDING: UPSLOPE, DOWNSLOPE, PULSING BACKGROUND CURRENT, PEAK
CURRENT CONTROL etc. provided for reducing heat input for welding
thin sheets.
| TECHNICAL SPECIFICATIONS FOR
THYRISTORISED WELDING RECTIFIERS |
|
MODELS
|
TD
400 |
TD
500 |
TD 600 |
TD
800 |
TD
1200 |
| Supply
voltage |
3PH, 415 VOLTS +/- 15%, 50HZ |
| Insulation Class |
H/F
|
H/F
|
H/F
|
H/F
|
H/F
|
|
Max. Primary Current
|
37A
|
47A
|
57A
|
83A
|
125A
|
Open
circuit voltage
|
------------------------------------- 75-85 V
------------------------------------------- |
| Current
at 60% duty cycle |
400A |
500A |
600A |
800A |
1200A |
Welding
cable section (Cu)
|
50 SQ.MM |
70 SQ.MM |
95 SQ. MM |
125 SQ.MM |
190 SQ.MM |
|
Current Setting range |
10-400
|
10-500 |
10-600 |
20-800 |
50-1200 |
| Dimensions (LxWxH
mm) |
830x570x920 |
910x570x1000 |
910x570x1000 |
1000x800x900 |
1000x800x900 |
| Weight |
175 Kg. |
200 Kg. |
300 Kg. |
450 Kg. |
550 Kg. |
|
