Name Type Values (Range) Unit Description
I_AMPL_A1 FLOAT32 0.00...40.00 xIr Connection group
compensated primary
current phase A
I_AMPL_B1 FLOAT32 0.00...40.00 xIr Connection group
compensated primary
current phase B
I_AMPL_C1 FLOAT32 0.00...40.00 xIr Connection group
compensated primary
current phase C
I_AMPL_A2 FLOAT32 0.00...40.00 xIr Connection group
compensated secondary
current phase A
I_AMPL_B2 FLOAT32 0.00...40.00 xIr Connection group
compensated secondary
current phase B
I_AMPL_C2 FLOAT32 0.00...40.00 xIr Connection group
compensated secondary
current phase C
ID_A FLOAT32 0.00...80.00 xIr Differential Current
phase A
ID_B FLOAT32 0.00...80.00 xIr Differential Current
phase B
ID_C FLOAT32 0.00...80.00 xIr Differential Current
phase C
IB_A FLOAT32 0.00...80.00 xIr Biasing current phase A
IB_B FLOAT32 0.00...80.00 xIr Biasing current phase B
IB_C FLOAT32 0.00...80.00 xIr Biasing current phase C
I_2H_RAT_A FLOAT32 0.00...1.00 Differential current
second harmonic ratio,
phase A
I_2H_RAT_B FLOAT32 0.00...1.00 Differential current
second harmonic ratio,
phase B
I_2H_RAT_C FLOAT32 0.00...1.00 Differential current
second harmonic ratio,
phase C
I_ANGL_A1_B1 FLOAT32 -180.00...180.00 deg Current phase angle
phase A to B, winding 1
I_ANGL_B1_C1 FLOAT32 -180.00...180.00 deg Current phase angle
phase B to C, winding 1
I_ANGL_C1_A1 FLOAT32 -180.00...180.00 deg Current phase angle
phase C to A, winding 1
I_ANGL_A2_B2 FLOAT32 -180.00...180.00 deg Current phase angle
phase A to B, winding 2
I_ANGL_B2_C2 FLOAT32 -180.00...180.00 deg Current phase angle
phase B to C, winding 2
I_ANGL_C2_A2 FLOAT32 -180.00...180.00 deg Current phase angle
phase C to A, winding 2
I_ANGL_A1_A2 FLOAT32 -180.00...180.00 deg Current phase angle diff
between winding 1 and
2, phase A
Table continues on next page
1YHT530004D05 D Section 4
Protection functions
615 series 421
Technical Manual
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