Doc. SIE62153
Rev. 1
Page 22/24
5 THREE PHASE CURRENT AMPLIFIER AND TWO VOLTAGE AMPLIFIER AMIV-66
5.1 Introduction
The three phase current amplifier and two voltage amplifier AMIV-66 is an additional device to the
RTS.3. This option offers the following features:
. To multiply by three the three-phase test current by paralleling outputs (from 3x15 A to 3x45 A);
.To control six currents at the meantime, for the test of transformer protection relays;
. To control six voltages, so that it is possible to have 6 currents and 6 voltages at the meantime.
The connection between DRTS.3 PLUS and AMIV-66 is made by a control cable to be connected
to the 23 way connector.
5.2 Technical characteristics
5.2.1 Three phase current generator
- Three independent current sources, with a common neutral.
- Type of connection: safety banana plugs or 8 way connector (V+I).
- Output ranges, and corresponding power and resolution of AMIV-66 alone.
RANGE OUTPUTS CONNECTION CURRENT
(A)
POWER
(VA)
Z MAX
(Ohm)
RESOLUT.
1
3 X
DIRECT
0…30
160
0.18
460
µ
A
2
3 X
DIRECT
0…3
0.18
46
µ
A
3
3 X
DIRECT
0…0.3
0.18
4.6
µ
A
4
1 X
2 IN SERIES
0…30
320
0.35
460
µ
A
5
1 X
3 IN PARALLEL
0…90
480
0.06
1.38 mA
- Output ranges, and corresponding power and resolution of AMIV-66 connected to DRTS3 PLUS.
RANGE OUT
CONNECTION
CURRENT
(A)
POWER
(VA)
Z MAX
(Ohm)
RESOL.
1
3 X
3 X
DIRECT
0...15
0...30
100
160
0.44
0.18
230
µ
A
460
µ
A
2
3 X
3 X
DIRECT
0…1.5
0...3
23
µ
A
46
µ
A
3
3 X
3 X
DIRECT
0…0.15
0..0.3
2.3
µ
A
4.6
µ
A
4
3 X
PARALLEL
0…45
260
0.12
690
µ
A
5
3 X
PARALLEL
0…4.5
69
µ
A
6
3 X
PARALLEL
0…0.45
6.9
µ
A
7
1 X
ALL IN PARALLEL
0…135
780
0.042
2.07 mA
- Automatic range switch and independent range selection.
- Waveform resolution: 28 bit (16 for the amplitude, 12 for the shape).
- Output accuracy: ± 0.1% of the output ± 0.02% of the range.
- Distortion: 0.1% total maximum, with any load.
- Automatic protection for overloads.
- Angle accuracy: ± 0.05°.
