Demand Values; Commissioning Tests - ABB REU 610 Technical Reference Manual

1MRS755769
5.1.9.
5.1.10.
Voltage Relay
Technical Reference Manual
The priority order of the operation indication messages:
1. CBFP
2. Trip
3. Start/Alarm

Demand values

The relay provides three different kinds of demand values.
The first value shows the average voltage of all three phase-to-phase voltages
measured during one minute. The value is updated once a minute.
The second value shows the average voltage during an adjustable time range,
ranging from 0 to 999 minutes, with an accuracy of one minute. This value is
updated at the expiration of each time range.
The third value shows the highest one-minute average voltage value measured
during the previous time range. However, if the time range is set to zero, only the
one-minute and the maximum average voltage value is shown. The maximum value
is the highest one-minute mean value since the last reset.
The average voltage values can be set to zero through serial communication using
SPA parameter V102. The average voltage values are also reset if SPA parameter
V105 is changed or the relay is reset.

Commissioning tests

The following two product functions can be used during the commissioning of the
relay: function test and digital input test.
The function test is used for testing the configuration as well as the connections
from the relay. By selecting this test, the internal signals from the protection stages,
the external trip signal and the IRF function can be activated one by one. Provided
that the signals have been set to be routed to the output contacts (PO1...PO3 and
SO1 ...SO5) with the switches of SGR1... SGR8, the output contacts are activated
and their corresponding event codes are generated when the test is run. However,
activation of the internal signals from the protection stages, the external trip signal
and the IRF function do not generate an event code.
The digital input test is used for testing the connections to the relay. The state of the
digital inputs can be monitored via the HMI.
Refer to the Operator's Manual for instructions on how to perform the tests.
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