Manual WIP1 GB
Woodward
DOK-TD-WIP1 Rev.F
43
7. Relay testing and commissioning
The test instructions following below help to verify the protection relay performance before or during commis-
sioning of the protection system. To avoid a relay damage and to ensure a correct relay operation, be sure
that:
the rated current of the relay corresponds to the plant data on site.
the current transformer circuits are connected to the relay correctly.
all signal circuits and output relay circuits are connected correctly.
7.1 Checking the set values
Pressing the <DISPLAY ON> push button activates the display. By repeatedly pressing the push button
<SELECT/RESET>, all relay set values may be checked. Set value modification can be done with the push
button <+><-> and <ENTER>.
For a correct relay operation, be sure that the frequency set value (f=50/60) has been selected according to
your system frequency (50 or 60 Hz).
7.2 Secondary injection test
7.2.1 Test equipment
Ammeter with class 1 or better
Single-phase voltage supply unit (adjustable from 0 to 260 V AC)
Inductance (S = 2.5 KVA, L = 65 mH, I = 10 A)
Timer to measure the operating time (Accuracy class
≤
±10 ms)
Switching
device
Test leads and tools