G) Welding test
With the power source set up according to the instructions in
the handbook make a test weld at 80A (electrode diameter 2.5
mm). Check the dynamic behaviour of the power source.
1.3 Scheduled tests for the TECNICA 152
In this case it makes no difference whether the tests are
carried out with a 115V or a 230V power supply:
-
with a 230V power supply (LED D13 on and green) the
tests are exactly the same as those described for the
TECNICA 150-168GE.
-
with a 115V power supply (LED D13 on and orange) the
tests are exactly the same as those described for the
TECNICA 150-168GE with the exception of the rated load
test at point 1.2 C). To carry out the rated load test at 115V
see point 1.3 A).
-
set up the ohmic load with the switch settings as in the
table in
;
-
on the front panel turn the current potentiometer to
maximum (turn clockwise as far as it will go);
-
switch on at the main switch;
-
start up the ohmic load and make sure that:
-
the waveforms displayed on the oscilloscope resemble
those in
-
the output current is equal to +100Adc ±5% and the output
voltage is equal to 24Vdc ±5%; if the output current
reading is not 100A ±5%, adjust the current using jumpers
JP6, JP7 and JP 8 (
).
-
switch off the ohmic load and switch off the main switch.
A) Rated load test:
fig. I
fig. I;
fig. 5
SETTINGS:
PROBE
PROBE
TIME TOLLERANCES
±20%.
:
AMPLITUDE ON
CH1 IS
AMPLITUDE ON
CH2 IS
-
CH1 x100
- 100V/Div;
-
CH2 x10;
- 5V/Div;
- 5 sec/Div.
-
320V ±10%;
-
7V ±10%.
VERIFY THAT
µ
FIGURE I
Position switch
Number switch
1
3
2
2
3
2
4
2
5
2
6
2
TECNICA 150-152-170-168GE
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