G
U/f>
24
U/f>
24
U/f>
24
en05000208.vsd
IEC05000208 V1 EN
Figure 208: Alternative connections of an Overexcitation protection
OEXPVPH(Volt/Hertz)
10.4.3 Setting guidelines
10.4.3.1 Recommendations for input and output signals
Recommendations for Input signals
Please see the default factory configuration.
BLOCK: The input will block the operation of the Overexcitation protection
OEXPVPH, for example, the block input can be used to block the operation for a
limited time during special service conditions.
RESET: OEXPVPH has a thermal memory, which can take a long time to reset.
Activation of the RESET input will reset the function instantaneously.
Recommendations for Output signals
Please see the default factory configuration for examples of configuration.
ERROR: The output indicates a measuring error. The reason, for example, can be
configuration problems where analogue signals are missing.
START: The START output indicates that the level V/Hz>> has been reached. It can
be used to initiate time measurement.
TRIP: The TRIP output is activated after the operate time for the U/f level has expired.
TRIP signal is used to trip the circuit breaker(s).
1MRK 502 071-UEN - Section 10
Voltage protection
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 421
Application manual
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