ABB REG650 ANSI, Руководство по вводу в эксплуатацию

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6.5.2.2 Four step non-directional residual overcurrent protection
1. Do as described in "Four step directional residual overcurrent protection" , but
without applying any polarizing voltage.
6.5.2.3 Completing the test
Continue to test another function or end the testing by setting the parameter TestMode
to Off under Main menu/Tests/IED test mode/TESTMODE:1 . If another function
is tested, then set the parameter Blocked to No under Main menu/Tests/Function test
modes/Current/EF4PTOC(51N67N,4IN>)/EF4PTOC:X for the function, or for
each individual function in a chain, to be tested next. Remember to set the parameter
Blocked to Yes , for each individual function that has been tested.
6.5.3 Sensitive directional residual overcurrent and power
protection SDEPSDE
Prepare the IED for verification of settings as outlined in 5.1 "Preparing the IED to
verify settings" .
Values of the logical signals for SDEPSDE are available on the local HMI under Main
menu/Tests/Function status/Current/SDEPSDE(67N,IN<->)/SDEPSDE:1 . The
Signal Monitoring in PCM600 shows the same signals that are available on the local
HMI.
6.5.3.1 Measuring the operate and time limit for set values
Operation mode 3I
0
· cosφ
Procedure
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.
Take setting
RCAComp into consideration if not equal to 0 .
2. Measure that the operate current of the set directional element is equal to the
INcosPhi> setting.
The I Dir (I
0
cos(Angle)) function activates the START and STDIRIN output.
3. Measure with angles
j
= /- 45° that the measuring element operates
when I
0
cos ( RCADir -
j
) = I
0
cos(+/-45) = INcosPhi> .
4. Compare the result with the set value.
Take the set characteristic into consideration, see figure
15 and figure 16 .
5. Measure the operate time of the timer by injecting a current two times the set
INcosPhi> value and the polarizing voltage 1.2 · UNRel> .
Section 6
1MRK 502 049-UEN A
Testing functionality
62
Commissioning manual