GE N60 Instruction Manual page 337

CHAPTER 5: SETTINGS
SETTING
8BIT COMP 1 BLOCK:
Off=0 BLOCK (see description)
SETTINGS
8BIT COMP 1 INPUT MODE:
8BIT COMP 1 PICKUP:
SETTINGS
8BIT COMP 1 SCALE FACTOR:
8BIT COMP 1 ARG A0:
...
Off=0
8BIT COMP 1 ARG A6:
A
Off=0
8BIT COMP 1 ARG A7:
Off=0
SETTINGS
8BIT COMP 1 ARG B0:
...
Off=0
8BIT COMP 1 ARG B6:
Off=0
8BIT COMP 1 ARG B7:
Off=0
SETTING
8BIT COMP 1 ADD/SUB:
Off=0
Application example
A three-phase active power measured via SRC 1 on the UR-1 IED is to be sent to a remote location UR-2 via the direct
inputs/outputs feature. Upon reception the remote power is to be added to a three phase active power measured locally
by the UR-2 IED via SRC 4. The application needs to be accurate under an overload of 25% and a power factor of 1.0 at
either location. An alarm is to be established at the UR-2 location if the total power is above 2500 MW for 50 ms. The alarm
is to be cleared if the power is below 2000 MW for 1 second.
The following settings and conditions are given.
• UR-1: Nominal system voltage = 345 kV, SRC 1 CT ratio = 2000:5, Normal load current = 1.8 kA
• UR-2: Nominal system voltage = 220 kV, SRC 4 CT ratio = 3000:5, Normal load current = 2.5 kA
The application requires the following features.
For UR-1:
Digitizer to prepare the measured power for sending to the UR-2 IED, and
direct outputs to send the digitized power to the UR-2 IED
For UR-2:
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Figure 5-112: Eight-bit comparator logic
8BIT COMP 1 DIRECTION:
8BIT COMP 1 HYSTERESIS:
scaling factor
scaling factor
SUM
Off
-1 -B
+B
0.5
On
scaling factor
CONTROL ELEMENTS
ACTUAL VALUE
8BIT COMP 1 A
SETTINGS
8BIT COMP 1 PICKUP
DELAY:
8BIT COMP 1 RESET
DELAY:
FLEXLOGIC OPERANDS
t
PKP
8BIT COMP 1 OP
t
RST
8BIT COMP 1 DPO
8BIT COMP 1 PKP
ACTUAL VALUE
8BIT COMP 1 Out
ACTUAL VALUE
8BIT COMP 1 B
FLEXLOGIC OPERANDS
8BIT COMP 1 BIT 0
8BIT COMP 1 BIT 1
8BIT COMP 1 BIT 2
8BIT COMP 1 BIT 3
8BIT COMP 1 BIT 4
8BIT COMP 1 BIT 5
8BIT COMP 1 BIT 6
8BIT COMP 1 BIT 7
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