Completing The Test; Two Step Residual Overvoltage Protection Rov2Ptov (59N) - ABB Relion 650 Series Commissioning Manual

1MRK 505 289-UUS B
Vpickup
ANSIEQUATION2426 V1 EN-US
For phase-to-phase measurement:
Vpickup
ANSIEQUATION2427 V1 EN-US
4. Decrease the voltage slowly and note the reset value.
5. Set and apply about 20% higher voltage than the measured operate 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>.
( )
t s
ANSIEQUATION2429 V1 EN-US
where:
t(s)
TD1
V
Vpickup> Set pickup voltage for step 1
For example, if the measured voltage jumps from 0 to 1.2 times the set start voltage level and
time multiplier TD1 is set to 0.05 s (default value), then the TRST1 and TRIP signals operate at
a time equal to 0.250 s ± tolerance.
8. The test above can be repeated to check the inverse time characteristic at different voltage
levels.
9. Repeat the above-described steps for step 2.
7.5.2.2

Completing the test

Continue to test another function or end the testing by setting the parameter
Disabled under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then
set the parameter
OV2PTOV(59,2U>)/OV2PTOV:1 for the function, or for each individual function in a chain, to be
tested next. Remember to set the parameter
been tested.
7.5.3

Two step residual overvoltage protection ROV2PTOV (59N)

Prepare the IED for verification of settings as outlined in section
settings".
Busbar protection REB650
Commissioning manual
>
VBase VT sec
´ ´
100 VTprim
3
>
VT sec
´ ´
VBase
100 VTprim
For example, if the inverse time curve A is selected, the trip signals TRST1 and
TRIP operate after a time corresponding to the equation:
TD 1
=
æ ö
V
-
1
ç ÷
>
Vpickup
è ø
Operate time in seconds
Settable time multiplier of the function for step 1
Measured voltage
Blocked to No under Main menu/Tests/Function test modes/Voltage/
© Copyright 2013 ABB. All rights reserved
Blocked to Yes , for each individual function that has
"Preparing the IED to verify
Section 7
Testing functionality
(Equation 4)
(Equation 5)
(Equation 6)
M13806-43 v6
TestMode to
SEMOD54358-3 v6.1.1
55