Name
Range
Step
Default
Description
Delay
characteristics
IEC
0: NI
1: EI
2: VI
3: LTI
4: Param
-
0: NI
Selects the IEC standard delay characteristics.
The options include the following: Normally Inverse ("NI"),
Extremely Inverse ("EI"), Very Inverse ("VI") and Long Time Inverse
("LTI") characteristics. Additionally, the "Param" option allows the
tuning of the constants A and B which then allows the setting of
characteristics following the same formula as the IEC curves
mentioned here.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT" and the "Delay curve series" parameter is set to "IEC".
Delay
characteristics
IEEE
0: ANSI NI
1: ANSI VI
2: ANSI EI
3: ANSI LTI
4: IEEE MI
5: IEEE VI
6: IEEE EI
7: Param
-
0: ANSI
NI
Selects the IEEE and ANSI standard delay characteristics.
The options for ANSI include the following: Normal Inverse ("ANSI
NI"), Very Inverse ("ANSI VI"), Extremely inverse ("ANSI EI"), Long
time inverse ("ANSI LTI") characteristics. IEEE: Moderately Inverse
("IEEE MI"), Very Inverse ("IEEE VI"), Extremely Inverse ("IEEE EI")
characteristics. Additionally, the "Param" option allows the tuning of
the constants A, B and C which then allows the setting of
characteristics following the same formula as the IEEE curves
mentioned here.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT" and the "Delay curve series" parameter is set to
"IEEE".
Time dial
setting k
0.01…25.00s
0.01s
0.05s
Defines the time dial/multiplier setting for IDMT characteristics.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT".
A
0.0000…250.0000 0.0001 0.0860
Defines the Constant A for IEC/IEEE characteristics.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT" and the "Delay characteristic" parameter is set to
"Param".
B
0.0000…5.0000
0.0001 0.1850
Defines the Constant B for IEC/IEEE characteristics.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT" and the "Delay characteristic" parameter is set to
"Param".
C
0.0000…250.0000 0.0001 0.0200
Defines the Constant C for IEEE characteristics.
This setting is active and visible when the "Delay type" parameter is
set to "IDMT" and the "Delay characteristic" parameter is set to
"Param".
A
AQ
Q-T256
-T256
Instruction manual
Version: 2.06
© Arcteq Relays Ltd
IM00028
35
Summary of Contents for AQ-T256
Page 1: ...AQ T256 Transformer protection IED Instruction manual...
Page 2: ......
