ABB REG670 - Completing the Test; Two Step Residual Overvoltage Protection ROV2 PTOV (59 N); Verifying the Settings

13.6.2.3 Completing the test
M13806-43 v6
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled. Restore connections and settings to their original values, if they were
changed for testing purposes.
13.6.3 Two step residual overvoltage protection ROV2PTOV (59N)
SEMOD54358-3 v7
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to
verify settings".
13.6.3.1 Verifying the settings
SEMOD54358-35 v11
1. Apply a single-phase voltage either to a single-phase voltage input or to a residual
voltage input with the pickup value below the set value Pickup1.
2. Slowly increase the value until PU_ST1 appears.
3. Note the trip value and compare it with the set value.
4. Decrease the voltage slowly and note the reset value.
5. Set and apply a 20% higher voltage than the measured trip value for one phase.
6. Measure the time delay for the TRST1 signal and compare it with the set value.
7. Check the inverse time delay by injecting a voltage corresponding to 1.2 ×
Vpickup>.
For example, if the inverse time curve A is selected, the trip
signals TRST1 and TRIP trip after a time corresponding to the
equation:
t s
k
U
U
( )
=
>
−






1
1
1
IECEQUATION2429 V1 EN-US (Equation 99)
( )
1
1
TD
t s
V
Vpickup
=
æ ö
-
ç ÷
>
è ø
ANSIEQUATION2429 V1 EN-US (Equation 100)
where:
t(s) Trip time in seconds
TD1 Settable time multiplier of the function for step 1
V Measured voltage
Section 13 1MRK 502 073-UUS A
Testing functionality by secondary injection
222 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual