Completing The Test - ABB rec670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.8.3.1
140
Checking the operation of binary input and output
1. Simulate normal operation conditions with three-phase voltage on the main fuse
group and the pilot fuse group. Ensure the values are equal to their rated values.
2. Disconnect one of the phase voltage from the main fuse group or the pilot fuse
group. Observe the binary outputs of the IED. The MAINFUF or the PILOTFUF
signals are simultaneously activated. Only the output circuit related to the open
phase will be active i.e either MAINFUF or PILOTFUF.
3. Establish a normal voltage operating condition and observe the corresponding
output signals. MAINFUF or PILOTFUF should change to 0 in about 27 ms.
4. Set normal conditions as mentioned in step 1.
5. Enable the BLOCK binary input and repeat step 2. MAINFUF or PILOTFUF
should not appear.
Checking the operation of MAINFUF and PILOTFUF
1. Simulate normal operation conditions with three-phase voltage on the main fuse
group and the pilot fuse group. Ensure the values are equal to their rated values.
2. Decrease one of the three-phase voltages on main fuse group or pilot fuse group.
The voltage change must be greater than the set value for Ud>MainBlock or
Ud>PilotAlarm. MAINFUF or PILOTFUF signals are activated without any
time delay.
3. Set normal conditions as mentioned in step 1. MAINFUF or PILOTFUF signals
should reset.
4. Set SealIn to On, UD>MainBlock to 20% of UBase and USealIn to 70% of
UBase.
5. Apply three-phase voltages with the value slightly below USealIn level.
6. Decrease one of the three-phase voltages on main fuse group. The voltage change
must be greater than the set value for Ud>MainBlock. MAINFUF signal is
activated.
7. After more than 5 seconds increase the measured voltage back to the value
slightly below USealIn level. MAINFUF signal should not reset.
8. Slowly increase measured voltage to the value slightly above USealIn until
MAINFUF signal resets.
9. Record the measured voltage and compare with the set value USealIn.

Completing the test

Continue to test another function or end the test by changing the TestMode setting to
Off. Restore connections and settings to their original values, if they were changed for
testing purposes.
1MRK 511 360-UEN A
Bay control REC670 2.1 IEC
Commissioning manual