Changes
- Improved descriptions generally in many chapters.
- Improved readability of a lot of drawings and images.
- Order codes have been revised.
- Added LN mode parameters to all functions (On, Blocked, Test, Test/Blocked, Off).
- Added color themes parameter description.
- Improved color sleep mode description.
- Improved alarm function color behavior description and images.
- Added operation time with different measurement values vs setting ratio in instant operation mode to
non-directional overcurrent function description.
- Fixed bias calculation formula for restricted earth fault function. Was correctly in the code, just written
wrong in the manual.
- Added power measurement side selection to power functions.
- Added 30 s pretriggering time for disturbance recorder (AQ-250 devices only).
- Added new trip detections and fault types to measurement value recorder.
- Added user description parameter descriptions for digital inputs, digital outputs, logical inputs, logical
outputs and GOOSE inputs.
- Arc point sensor HSO1 and HSO2 position fixed.
- Added spare part codes and compatibilities to option cards.
1.2 Version 1 revision notes
Table. 1.2 - 2. Version 1 revision notes
Revision
1.00
Date
13.4.2016
Changes
-
The first revision for AQ-T256, T257 and T259 IEDs.
Revision
1.01
Date
10.2.2017
Changes
-
Order code updated
-
Added programmable stage description
Revision
1.02
Date
9.1.2018
Changes
-
Measurement value recorder description
-
ZCT connection added to current measurement description
-
Internal harmonics blocking to I>,I0> function descriptions
-
Non-standard delay curves added
-
Event lists revised on several functions
-
RTD&mA card description improvements
-
Ring-lug CT card option description added
-
New U> and U< function measurement modes documented
-
Order code revised
Revision
1.03
Date
14.8.2018
Changes
-
Added mA output option card description and ordercode
-
Added HMI display technical data
A
AQ
Q-T256
-T256
Instruction manual
Version: 2.06
8
© Arcteq Relays Ltd
IM00028
Summary of Contents for AQ-T256
Page 1: ...AQ T256 Transformer protection IED Instruction manual...
Page 2: ......