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6.6. COMMUNICATIONS
The test is to check that the 3 connectors in the relay allow communication with the relay. To do this it is
necessary to use a computer and a connector suitable to establish the connections between PC and relay which
are shown in figure 4.
The communication parameters which have to be set for the computer are the relay's default settings, as follows:
Relay number:
Remote port baud rate:
Local port baud rate:
Remote stop bits:
Local stop bits:
This test is carried out at the minimum and maximum voltage that the relay will allow (± 20% of the rated voltage).
6.7. MEASURES
TABLE-1
• Apply voltages shown in table 1, at a frequency of 60Hz with a phase of 0º.
• Check that the relay measures V1, V2, V3, V4, and V5 with an accuracy better than ±5%
• Apply voltages shown in table 1, at a frequency of 50Hz with a phase of 0º.
• Check that the relay measures V1, V2, V3, V4, and V5 with an accuracy better than ±5%
6.8. CHECKING THE INPUTS
• Apply to each input 20% less than the minimum admissible voltage.
• Check that the unit recognises that all inputs are activated.
• Apply to each input 20% more than the maximum admissible voltage
• Check that the unit recognises that all inputs are activated.
6.9. CHECKING THE OUTPUTS
Set the relay according to the following table:
GENERAL SETTINGS
ACTIVE TABLE
PERMISSIONSxFUNCTIONS
FUNCTION A
FUNCTION A'
FUNCTION B
FUNCTION C
FUNCTION D
GEK-106271
1
19200
19200
1
1
1
2
5 V
10 V
V1
V2
5 V
10 V
V3
5 V
10 V
5 V
10 V
V4
5 V
10 V
V5
MIV Digital Multifunctional Protective Relay
3
4
50 V
100 V
150 V
50 V
100 V
150 V
50 V
100 V
150 V
50 V
100 V
150 V
50 V
100 V
150 V
1
not permitted
not permitted
not permitted
not permitted
not permitted
6. ACCEPTANCE TESTS
5
6
200 V
200 V
200 V
200 V
200 V
41
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