Atec OMICRON-CMC-156 User Manual
Cmc 156 ep
CMC 156 EP: 3 Phase Voltage + 3 Phase Current Test Set
Voltage generators/-amplifiers
Setting range 3-phase AC (L-N)
3 x 0 ... 127.5 V
1-phase AC (L-L)
1 x 0 ... 255 V
DC (L-N)
3 x 0 ... ±127.5 V
Power
3-phase AC (L-N)
3 x 50 VA at 127.5 V
1-phase AC (L-N)
1 x 100 VA at 127.5 V
1-phase AC (L-L)
1 x 140 VA at 255 V
DC (L-N)
1 x 90 W at ±127.5 V
75
140
127.5
255
Output voltage / V
0
1-phase AC (L-L)
3-phase AC (L-N)
1-phase AC (L-N)
Output po
w
er / V
A
Accuracy
2
error < 0.015 % rd.
3
+ 0.005 % rg.
3
typ.
at 0 ... 127.5 V
error < 0.04 % rd. + 0.01 % rg. guar.
at 0 ... 127.5 V
Distortion (THD+N)
4
< 0.015 % typ., < 0.05 % guar.
Resolution
6 mV
Connection
4 mm (0.16 in) banana sockets/comb. socket
Current generators/-amplifiers
Setting range 3-phase AC (L-N)
3 x 0 ... 12.5 A
1-phase AC (3L-N)
1 x 0 ... 27 A
DC (3L-N)
1 x 0 ... ±30 A
Power
3-phase AC (L-N)
3 x 40 VA at 12.5 A
1-phase AC (3L-N)
1 x 75 VA at 27 A
1-phase AC (L-L)
1 x 75 VA at 12.5 A
DC (3L-N)
1 x 60 W at ±12.5 A
75
140
127.5
255
Output voltage / V
0
1-phase AC (L-L)
3-phase AC (L-N)
1-phase AC (L-N)
Output po
w
er / V
A
Accuracy
5
error < 0.015 % rd. + 0.005 % rg. typ.
at 0 ... 12.5 A
error < 0.04 % rd. + 0.01 % rg. guar.
at 0 ... 12.5 A
Distortion (THD+N)
4
< 0.025 % typ., < 0.05 % guar.
Ranges
1.25 A / 12.5 A
Resolution (for respective range)
50 µA / 500 µA
Resolution
500 µA
Max. compliance voltage (L-N)/(L-L)
4 VRMS, 6 Vpk / 8 VRMS, 12 Vpk
Connection
4 mm (0.16 in) banana sockets/comb. socket
At only 9.8 kg / 22 lbs, the CMC 156 EP is the smallest and lightest solution for three-phase
testing of numerical relays. Its high precision makes it also the perfect device (class 0.05 %
Working Standard) for testing and calibrating meters, transducers and other measurement
equipment.
Generators, general
Frequency
range sine signals
10 ... 1000 Hz
range transient signals DC ... 3.1 kHz
accuracy/-drift
±0.5 ppm / ±1 ppm
resolution
5 µHz
Phase
angle range
- 360° ... +360°
resolution
0.001°
error at 50/60 Hz
< 0.005° typ., < 0.02° guar.
Bandwidth (-3dB)
3.1 kHz
Simulated
power S, P
(calibration of
energy meters)
accuracy
6
error < 0.05 % rd.
3
typ., < 0.1 % rd. guar.
at 10-63 Hz, 50 ... 127.5 V, and 0.1 ... 12.5 A
temperature drift
0.001 % / °C typ.. < 0.05 % / °C guar.
Low level outputs
Setting range
6 x 0 ... 5 VRMS
Max. output current
2 mA
Accuracy
error < 0.025 % typ., < 0.1 % guar.
Resolution
250 µV
Distortion (THD+N)
4
< 0.015 % typ., < 0.05 % guar.
Unconventional CT/VT simulation
linear
Isolation
SELV
Usability
completely independent from internal
amplifier outputs
Connection
16 pin combination socket (rear side)
Binary Inputs
Number
10
Trigger criteria
Toggling of potential-free contacts or DC
voltage compared to threshold voltage
Input characteristics
0 ... +250 VDC threshold or potential-free
Ranges (in RMS values)
250 VDC
Resolution of threshold
1.5 V
Sample rate
10 kHz (resolution 100 µs)
Time stamping accuracy
±0.00015 % of rd.
3
±70 µs
Max. measuring time
infinite
Counting function
< 3 kHz at pulse width > 150 µs
Galvanic isolation
2 galvanically isolated groups (4 + 6)
Max. input voltage
250 VDC
Connection
4 mm (0.16 in) banana sockets or measure-
ment combination socket
Counter inputs 100 kHz
Number
2
Max. counting frequency
100 kHz
Pulse width
> 3 µs
Threshold voltage
6 V
Voltage hysteresis
2 V
Max. input voltage
±30 V
Isolation
SELV
Connection
16 pin combination socket (rear side)
Technical Data
1
CMC 156 EP