Tripping Logic Smpptrc; Trip Matrix Logic Tmaggio; Configurable Logic Blocks; Fixed Signal Function Block - ABB RED670 Product Manual

Line differential protection RED670 ANSI
Customized
Product version: 1.2
Features:
• Carrier redundancy to ensure security in DTT scheme
• Blocking function output on CR Channel Error
• Phase wise trip outputs
Negative sequence overvoltage protection LCNSPTOV (47)
Negative sequence components are present in all types of fault
condition. Negative sequence voltage and current get high
values during unsymmetrical faults.
Zero sequence overvoltage protection LCZSPTOV (59N)
Zero sequence components are present in all abnormal
conditions involving ground. They can reach considerably high
values during ground faults.
Negative sequence overcurrent protection LCNSPTOC (46)
Negative sequence components are present in all types of fault
condition. They can reach considerably high values during
abnormal operation.
Zero sequence overcurrent protection LCZSPTOC (51N)
Zero sequence components are present in all abnormal
conditions involving ground. They have a considerably high
value during ground faults.
Three phase overcurrent LCP3PTOC (51)
Three phase overcurrent (LCP3PTOC, 51) is designed for
overcurrent conditions.
Features:
• Phase wise pickup and trip signals
• Overcurrent protection
• Phase wise RMS current is available as service values
• Single definite time stage trip function.
Three phase undercurrent LCPCPTUC (37)
Three phase undercurrent function (LCP3PTUC, 37) is designed
for detecting loss of load conditions.
Features:
• Phase wise pickup and trip signals
• Phase wise RMS current is available as service values
• Single definite time stage trip function
12. Logic

Tripping logic SMPPTRC (94)

A function block for protection tripping is provided for each
circuit breaker involved in the tripping of the fault. It provides a
settable pulse prolongation to ensure a trip pulse of sufficient
26
length, as well as all functionality necessary for correct co-
operation with autoreclosing functions.
The trip function block also includes a settable latch
functionality for evolving faults and breaker lock-out.

Trip matrix logic TMAGGIO

Trip matrix logic TMAGGIO function is used to route trip signals
and other logical output signals to different output contacts on
the IED.
TMAGGIO output signals and the physical outputs allows the
user to adapt the signals to the physical tripping outputs
according to the specific application needs.

Configurable logic blocks

A number of logic blocks and timers are available for the user to
adapt the configuration to the specific application needs.
• OR function block.
• INVERTER function blocks that inverts the input signal.
• PULSETIMER function block can be used, for example, for
pulse extensions or limiting of operation of outputs, settable
pulse time.
• GATE function block is used for whether or not a signal
should be able to pass from the input to the output.
• XOR function block.
• LOOPDELAY function block used to delay the output signal
one execution cycle.
• TIMERSET function has pick-up and drop-out delayed
outputs related to the input signal. The timer has a settable
time delay.
• AND function block.
• SRMEMORY function block is a flip-flop that can set or reset
an output from two inputs respectively. Each block has two
outputs where one is inverted. The memory setting controls if
the block's output should reset or return to the state it was,
after a power interruption.
• RSMEMORY function block is a flip-flop that can reset or set
an output from two inputs respectively. Each block has two
outputs where one is inverted. The memory setting controls if
the block's output should reset or return to the state it was,
after a power interruption. RESET input has priority.

Fixed signal function block

The Fixed signals function (FXDSIGN) generates a number of
pre-set (fixed) signals that can be used in the configuration of
1MRK505226-BUS D
ABB