2-26
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 2: PRODUCT DESCRIPTION
2
Triggers:
any element pickup, dropout, or operate; contact input change of state; contact output change
of state; FlexLogic equation
Data:
AC input channels; element state; contact input state; contact output state
Data storage:
in non-volatile memory
EVENT RECORDER
Capacity:
1024 events
Time-tag:
to 1 microsecond
Triggers:
any element pickup, dropout, or operate; contact input change of state; contact output change
of state; self-test events
Data storage:
in non-volatile memory
DATA LOGGER
Number of channels:
1 to 16
Parameters:
any available analog actual value
Sampling rate:
15 to 3600000 ms in steps of 1
Trigger:
any FlexLogic operand
Mode:
continuous or triggered
Storage capacity:
(NN is dependent on memory)
1-second rate:
01 channel for NN days
16 channels for NN days
↓
60-minute rate:
01 channel for NN days
16 channels for NN days
FAULT LOCATOR
Number of independent fault locators: 1 per CT bank (to a maximum of 2)
Method:
single-ended
Voltage source:
wye-connected VTs, delta-connected VTs and neutral voltage, delta-connected VTs and zero-
sequence current (approximation)
Maximum accuracy if:
fault resistance is zero or fault currents from all line terminals are in phase
Relay accuracy:
±1.5% (V > 10 V, I > 0.1 pu)
Worst-case accuracy:
VT
%error
+
user data
CT
%error
+
user data
Z
Line%error
+
user data
RELAY ACCURACY
%error
+
1.5%
2.5.4 Metering
RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0
×
CT rating:
±0.25% of reading or ±0.1% of rated (whichever is greater)
>
2.0
×
CT rating:
±1.0% of reading
RMS VOLTAGE
Accuracy:
±0.5% of reading from 10 to 208 V
REAL POWER (WATTS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
±1.0% of reading at –1.0
≤
PF < –0.8 and 0.8 < PF
≤
10
REACTIVE POWER (VARS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
±1.0% of reading at –0.2
≤
PF
≤
0.2
