2022.11 / o
11
Electric Power Generation
Installation and maintenance
GEARLEC - TRACTELEC
GT3 / TF3 / TM3
3472 en -
3.6.1.2 - Running-time meter
The display panel is equipped with a meter
to record the running time of the device.
The number of hours can be seen on the
read-out as follows:
- from 0 to 999 hours “000 / 999” without
decimal point
- from 1000 to 9999 hours “100. / 999.” the
point on the right indicating x10
- more than 10,000 hours “10.0 / 65.5” the
point indicating x100
3.6.1.3 - Maximum values
The display panel can also show the
maximum voltage and current values
recorded during use of the machine. Use
the
MODE
button to select the desired
value (U or A) and hold for 8 seconds. Once
the button is released, the maximum
measurement stored is displayed and
flashes for 10 seconds.
3.6.2 - Electrical panel
The Tractelec is equipped with an electrical
panel with the following features:
1
2
3
4
1. Differential protection switch 30 mA
(3P+N) with adjustable threshold
2. General circuit breaker
3. Four-pole circuit breaker (3P+N)
4. Two-pole circuit breaker (1P+N)
3.6.3 - Differential switch
The Tractelec electrical panel is equipped
with a differential switch which allows the
protection trip parameters to be adjusted.
Trip threshold
setting
Trip delay
setting
Range selector
The factory setting of the differential switch
is 30 mA.
To change the trip threshold of the switch,
turn the trip threshold setting dial and adjust
the range selectors according to the table
below.
I
D
n
X1
X10
X100
0.03
30 mA
300 mA
3 A
0.05
50 mA
500 mA
5 A
0.075
75 mA
750 mA
7.5 A
0.1
100 mA
1 A
10 A
0.15
150 mA
1.5 A
15 A
0.2
200 mA
2 A
20 A
0.3
300 mA
3 A
30 A
Any modification of the threshold of
the differential protection switch above
30 mA is made under the full
responsibility of the user.