Pick-up
Used current magnitude
Measured residual current I01 (1 A)
Measured residual current I02 (0.2 A)
Calculated residual current I0Calc (5 A)
Used voltage magnitude
Measured zero sequence voltage U0
Calculated zero sequence voltage U0
Characteristic direction
Unearthed (Varmetric 90°)
Petersen coil GND (Wattmetric 180°)
Earthed (Adjustable sector)
When the earthed mode is active:
- Trip area center
- Trip area size (+/-)
0.00…360.00 deg, setting step 0.10 deg
45.00…135.00 deg, setting step 0.10 deg
Pick-up current setting
Pick-up voltage setting
0.005…40.00 × I
n
, setting step 0.001 × I
n
1.00…50.00 %U0
n
, setting step 0.01 %U0
n
Inaccuracy
- Starting I01 (1 A)
- Starting I02 (0.2 A)
- Starting I0Calc (5 A)
- Voltage U0 and U0Calc
- U0/I0 angle (U > 15 V)
- U0/I0 angle (U = 1…15 V)
±0.5 %I0
set
or ±3 mA (0.005…10.0 × I
set
)
±1.5 %I0
set
or ±1.0 mA (0.005…25.0 × I
set
)
±1.0 %I0
set
or ±15 mA (0.005…4.0 × I
set
)
±1.0 %U0
set
or ±30 mV
±0.1° (I0Calc ±1.0°)
±1.0°
Instant operation time
Start time and instant operation time (trip):
- I
m
/I
set
ratio > 3
- I
m
/I
set
ratio = 1.05…3
<40 ms (typical 30 ms)
<50 ms
Reset
Reset ratio:
- Current and voltage
- U0/I0 angle
97 % of the pick-up current and voltage setting
2.0°
Instant reset time and start-up reset
<50 ms
9.2.1.5. Intermittent earth fault (I0int>; 67NT)
Table. 9.2.1.5. - 161. Technical data for the intermittent earth fault function.
Input signals
Current input magnitudes
Residual current samples
Voltage input magnitudes
Zero sequence voltage samples
Pick-up
Used current magnitude
Measured residual current I01 (1 A)
Measured residual current I02 (0.2 A)
Used voltage magnitude
Measured zero sequence voltage U0
Spikes to trip
1…50, setting step 1
Pick-up current setting
Pick-up voltage setting
0.05…40.00 × I
n
, setting step 0.001 × I
n
1.00…100.00 %U0
n
, setting step 0.01 %U0
n
Inaccuracy:
- Starting I01 (1 A)
- Starting I02 (0.2 A)
- Voltage U0
±0.5 %I0
set
or ±3 mA (0.005…10.0 × I
set
)
±1.5 %I0
set
or ±1.0 mA (0.005…25.0 × I
set
)
±1.0 %U0
set
or ±30 mV
Instant operation time
Start time and instant operation time (trip):
- I
m
/I
set
ratio 1.05
→
<15 ms
AQ-E215
Instruction manual
Version: 2.01
197
© Arcteq Relays Ltd
Содержание AQ-E215
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