Table 165. Three-phase inrush detector (INRPHAR)
Characteristic
Value
Operation accuracy
At the frequency f = f
n
Current measurement:
±1.5% of the set value or ±0.002 × I
n
Ratio I2f/I1f measurement:
±5.0% of the set value
Reset time
+35 ms / -0 ms
Reset ratio
Typically 0.96
Operate time accuracy
+35 ms / -0 ms
Table 166. Three-phase inrush detector (INRPHAR) main settings
Parameter
Function
Value (Range)
Step
Start value
INRPHAR
5...100%
1
Operate delay time
INRPHAR
20...60000 ms
1
Table 167. Arc protection (ARCSARC)
Characteristic
Value
Operation accuracy
±3.0% of the set value or ±0.01 × I
n
Operate time TC
Minimum
Typical
Maximum
Operation mode = "Light
+current"
1)
9 ms
2)
3 ms
3)
10 ms
2)
5 ms
3)
13 ms
2)
6 ms
3)
Operation mode = "Light only"
2)
8 ms
2)
3 ms
3)
10 ms
2)
5 ms
3)
13 ms
2)
6 ms
3)
Reset time
Typically 50 ms
Reset ratio
Typically 0.96
1)
Phase start value = 1.0 × I
n
, current before fault = 2.0 × set
Phase start value, f
n
= 50 Hz, fault with nominal frequency, results based on statistical distribution of 200 measurements
2)
Includes the delay of the power output (PO) contact
3)
Measured with static power output (SPO)
Table 168. Arc protection (ARCSARC) main settings
Parameter
Function
Value (Range)
Step
Phase start value
ARCSARC
0.50...40.00 × I
n
0.01
Ground start value
ARCSARC
0.05...8.00 × I
n
0.01
Operation mode
ARCSARC
1 = Light+current
2 = Light only
3 = BI controlled
-
Table 169. High-impedance fault detection (PHIZ) main settings
Parameter
Function
Value (Range)
Step
Security Level
PHIZ
1...10
1
System type
PHIZ
1 = Grounded
2 = Ungrounded
-
1MRS759144 A
REX640
Product version: 1
ABB
81
Содержание RELION REX640
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