ABB RELION RET670, Applications Manual

Page: 128 / 1016

3277.0 AnalogXRange
=
IECEQUATION2446 V1 EN-US
The scale factor is calculated as follows:
(3277.0 2.0)
0.1 and 0.0
65535.0
scalefactor offset
´
= = =
IECEQUATION2447 V1 EN-US
The scale factor will be sent as 1 on configuration frame 2, and 0.1 on configuration
frame 3. The range of analog values that can be transmitted in this case is
-0.1 to
-3276.8 and +0.1 to +3276.7 .
Example 2:
4915.5 AnalogXRange
=
IECEQUATION2448 V1 EN-US
The scale factor is calculated as follows:
(4915.5 2.0 )
0.15 and 0.0
65535.0
scalefactor offset
´
= = =
IECEQUATION2449 V1 EN-US
The scale factor will be sent as 1 on configuration frame 2, and 0.15 on configuration
frame 3. The range of analog values that can be transmitted in this case is
-0.15 to
-4915.5 and +0.15 to +4915.5 .
Example 3:
10000000000 AnalogXRange
=
IECEQUATION2450 V1 EN-US
The scale factor is calculated as follows:
(10000000000 2.0)
305180.43 and 0.0
65535.5
scalefactor offset
´
= = =
IECEQUATION2451 V1 EN-US
The scale factor will be sent as 3051804 on configuration frame 2, and 305180.43 on
configuration frame 3. The range of analog values that can be transmitted in this case is
-305181 to -10000000000 and +305181 to +10000000000 .
Section 6
1MRK 504 163-UUS A
Wide area measurement system
122 Transformer protection RET670 2.2 ANSI
Application manual