7/25/2019 Testing the Feature With Freja Test Set

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hi guys!

this is my second time posting a question. I was very thankful because my rst thread(question)was entertained and answered by several members in this great forum.

this is my question:how to use frea "" for testing delta directional comparison which is one feature of micom #$$

distance relay%

the following is an e&cerpt from the #$$ manual(commissioning section):

'... *orward fault preparation+ongure the test set to inect a dynamic sequence of inection, as follows:

- tep /: imulate a healthy three0phase set of balanced voltages, each of magnitude 1n. 2oload current should be simulated. 3he duration of inection should be set to / second. tep / thusmimics a healthy unloaded line, prior to the application of a fault

- tep : imulate a forward fault on the 40phase. 3he 40phase voltage must besimulated to drop by times the 5/: 61 *wd7 setting, i.e:

1a 8 1n 0 & 61 *wd

3he fault current on the 40phase should be set to times the 5/: 6I *wd7 setting, lagging 1aby a phase angle equal to the line angle, i.e:

Ia 8 & 6I *wd 90 ;ine

#hases < and + should retain their healthy prefault voltage, and no current. 3he duration ofinection should be set to /""ms longer than the =elta =ly time setting.

'..' =elta directional comparison operation and contact assignment

4 forward fault will be inected as described above, with the intention to cause a scheme trip.

4s in the table, for a #ermissive scheme the ignal >eceive opto input will need to be?2(energi@ed).

'..'./ #hase 4#repare a dynamic 4 phase to neutral fault, as detailed above. Ansure that the test set issimulating teps / and as one continuous transition. +onnect a timer to start when the faultinection (tep ) is applied, and to stop when the trip occurs.

now, my problem is how to set up the frea "" to satisfy the last paragraph above ('..'./)#hase 4% I was thinking of using the rd page(sequence page) of the BgeneralB function. hould Iuse the