ABB REQ650 1.3 IEC, Руководство по вводу в эксплуатацию

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1. Set the polarizing voltage to 1.2 ·
UNRel> and the phase angle between voltage and
current to the set characteristic angle (
RCADir), the current lagging the voltage.
2. Measure that the operate power is equal to the
INDir> setting for the set directional
element.
Note that for operation, both the injected current and voltage must be
greater than the set values INRel> and UNRel> respectively.
The function activates the START and STDIRIN output.
3. Measure with angles j around /- ROADir.
4. Compare the result with the set values, refer to figure 12 for example characteristic.
5. Measure the operate time of the timer by injecting a current to get two times the set
SN_> operate value.
( )
0 0
/ 3 3 cos
test test
Tinv kSN Sref I U
j
= × × ×
IECEQUATION2403 V1 EN-US
(Equation 3)
6. Compare the result with the expected value.
The expected value depends on whether definite or inverse time was selected.
7. Continue to test another function or complete the test by setting the test mode to
Off.
-3U
0
Operate area
3I
0
RCADir = 0º
ROADir = 80º
IEC06000652-3-en.vsd
IEC06000652 V3 EN-US
Figure 12: Example characteristic
Non-directional earth fault current protection
SEMOD175060-117 v7
Procedure
1. Measure that the operate current is equal to the
INNonDir> setting.
The function activates the START and STDIRIN output.
2. Measure the operate time of the timer by injecting a current of 200% of the operate
value.
3. Compare the result with the expected value.
The expected value depends on whether definite time tINNonDir or inverse time was
selected.
4. Continue to test another function or complete the test by setting the test mode to
Off.
Section 7 1MRK 505 293-UEN B
Testing functionality
52 Breaker protection REQ650
Commissioning manual
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