Completing The Test; Current Protection; Instantaneous Phase Overcurrent Protection 3-Phase Output; Phpioc (50) - ABB REG670 Commissioning Manual

1MRK 502 073-UUS A
13.4.8.2
13.5
13.5.1
13.5.1.1
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
4. Close the switch to the station earth and check that the trip from the rotor earth
fault will be given after the set delay time.
5. Open the switch to the station earth and check that the trip signal resets
instantaneously.
6. Connect an adjustable resistor to the field circuit (221 on RXTTE4). Decrease
this resistor from a large value until the function operates and check monitored
value ICOSFI.
When the generator has been started the service value of injection voltage and
injection current shall be checked so that there is no risk for unwanted trip due to
large capacitive detected current.

Completing the test

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.

Current protection

Instantaneous phase overcurrent protection 3-phase output

PHPIOC (50)

Prepare the IED for verification of settings outlined in Section
verify settings".
Values of the logical signals for PHPIOC are available on the local HMI under Main
menu/Tests/Function status/Current protection/InstPhaseOverCurrent(50,3I>>)/
PHPIOC(50;3I>>):x, where x = 1, 2, and 3.
The Signal Monitoring in PCM600 shows the same signals that are available on the
local HMI.
To verify the settings the following fault type should be tested:
• Phase-to-ground fault
Ensure that the maximum continuous current, supplied from the current source used for
the test of the IED, does not exceed four times the rated current value of the IED.

Measuring the trip limit of set values

Testing functionality by secondary injection
Section 13
SEMOD158692-35 v2
SEMOD53531-1 v1
M11754-3 v8
"Preparing the IED to
M11754-11 v7
187