pulsing, lock-out contact output and so on, is performed. The
binary inputs are heavily stabilized against disturbance to
prevent incorrect operations at for example dc system
capacitive discharges or DC earth faults.
The binary inputs are heavily stabilized against disturbances
to prevent incorrect operations during for example during DC
system capacitive discharges or DC earth faults.
Distance protection functionality for phase-to-phase and/or
phase-to-earth faults is available as back-up protection for
faults within the transformer and in the connected power
system.
Versatile phase, earth, positive, negative and zero sequence
overcurrent functions, which can optionally be made
directional and/or voltage controlled, provide further
alternative backup protection. Thermal overload with two timeconstants, volts per hertz, over/under voltage and over/under
frequency protection functions are also available.
A built-in disturbance and event recorder provides valuable
data to the user about status and operation for post-fault
disturbance analysis.
Breaker failure protection for each transformer breaker allows
high speed back-up tripping of surrounding breakers.
The transformer IED can also be provided with a full control
and interlocking functionality including Synchrocheck function
to allow integration of the main and/or a local back-up control.
Out of Step function is available to separate power system
sections close to electrical centre at occurring out of step.
The advanced logic capability, where user logic is prepared
with a graphical tool, allows special applications such as
automatic opening of disconnectors in multi-breaker
arrangements, closing of breaker rings, load transfer logic
and so on. The graphical configuration tool ensures simple
and fast testing and commissioning.
Serial data communication is via optical connections to
ensure immunity against disturbances.
The wide application flexibility makes this product an
excellent choice for both new installations and the
refurbishment of existing installations.
All new products and surplus products of the industrial intelligence industry, as well as the discontinued products of the original manufacturers. We are not an authorized distributor or representative of any of the above manufacturers (except for brand authorization). The trademarks, brand names and brands appearing in this agreement are the property of their respective manufacturers.
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