S1 Trip Unit Functional Test - ABB TS3 Instruction Manual

8.1 S1 trip unit functional test.

1. Prior to operate and / or carry out any replacements on the CB, this must be open, with discharged spring and
disconnected
2. Remove the Trip unit ( DUT ) from the CB following the instructions in the installation manual of the CB n°
600600.002.
3. Take note of the settings present on the trip unit ( DUT ); these settings must be reset after the test.
4. Set the current and time values for the protection available on the DUT.
5. Connect the extension cable to TS3.
6. Connect the AR1/S1 test cable to the extension cable.
7. Connect the XK1 and TC connections to the DUT.
8. In order to set parameters and perform the test, follow the instructions in chapters 7.3, 7.4,
9. Verify that the tripping time indicated in the TS3 display is corresponding to the expected one, as indicated in the
technical catalogue n° 6000-3-84.
10. In case of changing of settings, insert the beginning value of threshold and time.
11. Reinstall the trip unit ( DUT ) on the CB as indicated in the instruction manual of the CB n° 600600.002
Example of test:
Current generation on phase L1
Setting on the trip unit for L, S, I, G protections.
Protection
L
S
I
G*
Table 8
* See Note4 in chapter 8 .
NOTE 5: for the S1 trip unit with LSIG protection function, the only available tests are on the phases : L1, L2, L3.
888.902.6111
Figure 15
Trip
Curve
threshold
2
t=k/I I1= 0.5In
t=k I2 = 8In
I3 = 12In
t=k I4 = 0.5In
TS3 1SDH000670R0002
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Expected
Trip time I test tripping
time
MIN 3In 2s
0,45s 10In 0,45s
 60ms
14In
1In 0.45s
7.5
L3852 25/44