Vpickup> Set pickup voltage for step 1For example, if the measured voltage jumps from 0 to 1.2 times the set pickupvoltage level and time multiplier TD1 is set to 0.05 s (default value), then theTRST1 and TRIP signals trip at a time equal to 0.250 s ± tolerance.8. Repeat the test for Step 2 of the function.13.6.3.2 Completing the test SEMOD54358-38 v4Continue to test another function or end the test by changing the TESTMODE setting toDisabled. Restore connections and settings to their original values, if they werechanged for testing purposes.13.6.4 Overexcitation protection OEXPVPH (24) M6583-45 v5Prepare the IED for verification of settings outlined in Section "Preparing the IED toverify settings".13.6.4.1 Verifying the settings M6583-49 v41. Enable function.2. Connect a symmetrical three-phase voltage input from the test set to theappropriate connection terminals of the overexcitation protection OEXPVPH (24)is configured for a three-phase voltage input.A single-phase injection voltage is applied if the function is configured for aphase-to-phase voltage input.OEXPVPH (24) is conveniently tested using rated frequency for the injectionvoltage and increasing the injection voltage to get the desired overexcitationlevel.3. Connect the alarm contact to the timer and set the time delay tAlarm temporarilyto zero.4. Increase the voltage and note the operate value Pickup1.5. Reduce the voltage slowly and note the reset value.6. Set the alarm time delay to the correct value according to the setting plan andcheck the time delay, injecting a voltage corresponding to 1.2 · Pickup1.7. Connect a trip output contact to the timer and temporarily set the time delayt_MinTripDelay to 0.5s.8. Increase the voltage and note the Pickup2 operate value9. Reduce the voltage slowly and note the reset value.10. Set the time delay to the correct value according to the setting plan and check thetime delay t_MinTripDelay, injecting a voltage corresponding to 1.2 · Pickup2.1MRK 502 073-UUS A Section 13Testing functionality by secondary injectionGenerator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 223Commissioning manual
