ca3/ca1/ca1h - maxtech inst
TRANSCRIPT
CA3
/CA1
/CA1
H
High voltages are often needed to provide test currents for older electro-mechanical relays. The three-phase
switched current amplifier designated CA3 solves this problem. It can provide 3 x 30 A or 1 x 60 A connected in
parallel. Maximum output power is 600 VA (3 x 25 A at 8 V). If higher voltage is needed, you can make the
connection between two phases (L-L).
If a higher voltage is needed than the CA3 can provide, or if you want to use a single-phase current amplifier,
you should choose the CA1 or CA1H (H stands for high voltage). They can provide 1 x 60 A and 1 x 24 A respec-
tively. If you need even higher current, two or more current amplifiers can be connected in parallel, thus bringing
the output current up to 180 A.
The current amplifiers can also be used in situations where more current generators are needed than the
three built into FREJA. Since the amplifiers can be controlled by both current and voltage, they can be connected
to FREJA's voltage generators. The number of current generators can thus be increased to six, which is con-
venient when testing differential relays.
CA3/CA1/CA1HCurrent Amplifiers
CA3
/CA1
/CA1
HSPECIFICATIONS
CA3CURRENT OUTPUTSSetting range
3-phase AC: 3 x 0 - 30 A (symmetrical phases)
1-phase AC1): 1 x 0 - 60 A
3-channel DC: 3 x ± 20 A1) Parallel connection of generators
Power3-phase AC: 600 VA, 3 x 200 VA (8 V at 25 A)
1-phase AC (L-L): 1 x 480 VA at 30 A (16 V)
1-phase AC1): 1 x 400 VA at 50 A (8 V)
Time limits
0 - 7 A: Continuous
>7 A: 10 s
Phase accuracy ± 0.2°
Distortion 1% max, 0.1% typical
Accuracy ± (0.4% of actual value + 0.1% of range)The above technical data are for resistive load 10 - 150 mOhm.
GENERALMains voltage 105 - 264 V AC, 47-63 Hz
Operating temperature 0 to +50°C (+32 to +122°F)
Storage temperature -40 to +70°C (-40 to +158°F)
Dimensions 450 x 132 x 410 mm
(17.7" x 5.2" x 16.1")
Weight 11 kg (24 lbs)
CA1CURRENT OUTPUTSSetting range
1-phase AC: 1 x 0 - 60 A
1-phase AC: 1 x 0 - 180 A (3 CA1 in parallel)
1-channel DC: 1 x ± 60 A
Power
1-phase AC: 560 VA, 9.3 V at 60 A
1-phase AC: 1680 VA, 9.3 V at 180 A (3 CA1 in parallel)
Time limits
0 - 20 A: Continuous
20 - 60 A: 10 s
Phase accuracy ± 0.3°
Distortion 2% max, 0.5% typical
Accuracy ± (1% of actual value + 0.2% of range)
CA1HCURRENT OUTPUTSSetting range
1-phase AC: 1 x 0 - 20 A
1-phase AC: 1 x 0 - 60 A (3 CA1H in parallel)
1-channel DC: 1 x ± 20 A
Power
1-phase AC: 600 VA, 25 V at 24 A
1-phase AC: 1800 VA, 25 V at 72 A (3 CA1H in parallel)
Time limits
0 - 8 A: Continuous
8 - 24 A: 10 s
Phase accuracy ± 0.3°
Distortion 2% max, 0.5% typical
Accuracy ± (1% of actual value + 0.2% of range)
GENERAL FOR CA1 AND CA1HMains voltage 115/230 V AC (switchable) ± 10%, 50-60 Hz
Operating temperature 0 to +45°C (+32 to +113°F)
Storage temperature -40 to +70°C (-40 to +158°F)
Dimensions 500 x 300 x 245 mm
(19.6" x 11.8" x 9.6")
Weight 20 kg (44 lbs)
The above specifications are valid at nominal input voltage andan ambient temperature of +25°C (+77°F). Specifications aresubject to change without notice.
SPECIFICATIONS
ORDERING INFORMATION
CA3CA3 including hard transport case GD-00210
Art.No: CA-19090
Soft transport case for CA3
Art.No: GD-00215
CA1CA1 including hard transport case GD-00170
Art.No: CB-19090
CA1HCA1H including hard transport case GD-00170
Art.No: CB-29090
CA1/CA1HCA3/CA1/CA1H Output voltage
Current (A)
Out
put
volt
age
(V)