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MC133 Single Phase Electric Power Energy Calibrator

Calibration of single phase power analyzers and energy wattmeters

MC133
  • Voltage 1V to 280V phase-neutral at 300mA
  • AC voltage as a 3 phase system 2V to 560V phase to phase
  • DC/AC current 8mA to 30A / 5V
  • Power factor setting -1 to +1
  • Harmonic, interharmonic distortion modulation
  • Frequency range 15Hz to 1kHz
  • Simulated electric power 0 to 8.4kVA (280kVA with option 140-50)
  • Built-in process multimeter
  • GPIB & RS232 interface
MC133 Master Unit

The MC133 master unit model is a single phase electric power/energy calibrator. It can supply the device under test with single phase precise voltage and current with calibrated phase shift along with DC voltage and current capability. Output voltage can be set in five ranges up to 280V and output current in six ranges up to 30A. Simulated electric power can be set independently for each phase. Frequency can be set from 15Hz to 1 kHz with resolution 0.001Hz to 0.01Hz. The MC133 Calibrator is equipped with 5 1/2 digital DC meter with DC ranges 20mA or 10V for direct calibration of various types of power transducers and wattmeters.

The MC133 calibrator offers two types of user selected distortion for ts main sinusoidal output signal. The first distortion is based on adding a defined amount of harmonic or inter-harmonic spectral components up to 5kHz. The second type of distortion is based on amplitude modulation of output sinusoidal signal by sine or square-wave modulation signal from 0.001Hz to 50Hz. Maximum depth of modulation is 30%.

Three-phase electric power/energy calibration system can be optionally built-up using one MC133 master unit and two MC133f slave units. The slave units contain power stages of each additional phase output. They are fully controlled from the master unit via a rear panel special interface. Maximum output voltage between two voltage phases is 560VAC. Current outputs can be joined together offering total amps of 90A AC/DC.

General technical data
Voltage range (sine mode) 1V to 280V AC or DC
Current range (sine mode) 8mA to 30A AC or DC
Resolution 5 1/2 digit
Frequency range 15Hz to 1000Hz>
Frequency accuracy 0.005% (for 50/60Hz synchronization to mains frequency can be set)
Frequency resolution 0.001 Hz bellow 40Hz, 0.01Hz above 40Hz
Distortion of voltage output < 0.05%
Distortion of current output < 0.1%
Phase shift range 0.000° to 359.99°
Power factor range -1.000 to +1.000
Total electric power range 0.03VA to 8400VA
Total electric energy range 0.03VAs to 2333VAhr
Time interval range 1s to 10000s
Time interval accuracy 0.01% + 0.1s
DC/AC Voltage (sine mode)
Range % of value
+
% of range
Max.
current
(mA)
% of value
+
% of range
Max.
current
(mA)
% of value
+
% of range
Max.
current
(mA)
DC DC 15 - 40Hz
70 - 1000Hz
15 - 40Hz
400 - 1000Hz
40 - 70Hz 40 - 400Hz
1 - 10V 0.025 + 0.01 100 0.03 + 0.02 100 0.025 + 0.01 100
10 - 30V 0.025 + 0.01 200 0.03 + 0.02 200 0.025 + 0.01 200
30 - 70V 0.025 + 0.01 200 0.03 + 0.02 200 0.025 + 0.01 300
70 - 140V 0.025 + 0.01 200 0.03 + 0.02 200 0.025 + 0.01 300
140 - 280V 0.025 + 0.01 150 0.03 + 0.02 150 0.025 + 0.01 200
DC/AC Current (sine mode)
Range % of value
+
% of range
Max.
current
(V)
% of value
+
% of range
% of value
+
% of range
Max.
current
(V)
Max.
current
(mA)
DC DC 15 - 40Hz
70 - 1000Hz
40 - 70Hz 15 - 400Hz 400 - 1000Hz
8 - 300mA 0.03 + 0.01 8 0.04 + 0.02 0.03 + 0.01 5.5 3.5
0.3 - 1A 0.03 + 0.01 8 0.04 + 0.02 0.03 + 0.01 5.5 3.5
1 - 2A 0.03 + 0.01 8 0.04 + 0.02 0.03 + 0.01 5.5 3.5
2 - 5A 0.03 + 0.01 5 0.04 + 0.02 0.03 + 0.01 3.5 3.5
5 - 10A 0.035 + 0.015 5 0.05 + 0.02 0.035 + 0.015 3.5 3.5
10 - 30A 0.04 + 0.02 5 0.06 + 0.02 0.04 + 0.02 3.5 3.5
Phase, power factor (sine mode)
Frequency (Hz) Accuracy degrees (°) 0.00 to 359.99°
15 - 40Hz 0.1
40 - 70Hz 0.05
70 - 400Hz 0.1
400 - 1000Hz 0.4
Accuracy of power factor: dPF = (1-cos(φ+dφ)/cos(φ)
AC Power
Total range: 0.03VA to 8400VA
(280kVA with current coil option 140-50)
Frequency range: 16Hz to 1000Hz
Quantity: W, VA, VAr
AC power accuracy (%) for PF = 1.0f = 40 - 70Hz
Current Range Voltage range
1V - 10V 10V - 30V 30V - 70V 70V - 140V 140V - 280V
30mA –5A 0,054 0,054 0,054 0,054 0,054
5 A – 10A 0,062 0,062 0,062 0,062 0,062
10A - 30A 0,070 0,070 0,070 0,070 0,070
AC electric power accuracy (%) for PF = 0.8f = 40 – 70Hz
Current Range Voltage range
1V - 10V 10V - 30V 30V - 70V 70V - 140V 140V - 280V
30mA –5A 0,082 0,082 0,082 0,082 0,082
5 A – 10A 0,088 0,088 0,088 0,088 0,088
10A - 30A 0,094 0,094 0,094 0,094 0,094
AC electric power accuracy (%) for PF = 0.5f = 40 – 70Hz
Current Range Voltage range
1V - 10V 10V - 30V 30V - 70V 70V - 140V 140V - 280V
30mA –5A 0,082 0,082 0,082 0,082 0,082
5 A – 10A 0,088 0,088 0,088 0,088 0,088
10A - 30A 0,094 0,094 0,094 0,094 0,094

Accuracy of power is calculated from value of voltage, current and power factor

Active power (W): dP = square root (dU2 + dI2 + dPF2 + 0.012) [%]

Reactive power (VAr): dP = square root (dU2 + dI2 + dPF*2 + 0.012) [%]

Apparent power (VA): dP = square root (dU2 + dI2 + 0.012) [%]

Where:

  • dP is accuracy of power [%]
  • dU is accuracy of voltage [%]
  • dI is accuracy of current [%]
  • dPF is accuracy of power factor (cos φ) [%]
  • dPF* is accuracy of sin φ [%]
H/I mode – Harmonic/interharmonic products
Fundamental harmonic frequency range 15Hz to 1000Hz
Fundamental harmonic amplitude accuracy 0.2% of range
Frequency range of harmonic products 30Hz to 5000Hz (2nd to 50th order)
Frequency range of inter-harmonic products 15Hz to 1000Hz
Max. number of harmonic products 50
Number of inter-harmonic products 1
H/I products amplitude range max. 30% of RMS fundamental harmonic amplitude
Amplitude resolution of H/I products 0.001%
Noise & Distortion -60dB
Harmonic output amplitude accuracy
Range % of fundamental harmonic amplitude range % of fundamental harmonic amplitude range
30Hz to 3000Hz 3000Hz to 5000Hz
1.0000V to 10.000V 0.1 0.2
10.0001 - 30.0000V 0.1 0.2
30.001 - 70.000V 0.1 0.2
70.001 - 140.000V 0.1 0.2
140.001 - 280.000V 0.1 0.2
0.008000 - 0.300000A 0.1 0.2
0.30001 - 1.00000A 0.1 0.2
1.00001 - 2.00000A 0.1 0.2
2.00001 - 5.00000A 0.2 0.4
5.0001 - 10.0000A 0.2 0.4
10.0001 - 30.0000A 0.4 0.8
Modulations and Flicker (EN61000-3-3)
Fundamental harmonic frequency range 15Hz to 1000Hz
Single harmonic (2-50) frequency range 30Hz to 5000Hz
Modulation frequency range 0.001Hz to 50Hz
Modulation depth 0.000 to 30.000%
Modulation depth resolution 0.001%
RMS amplitude accuracy 0.2% of range
Waveform of modulation signal sine, rectangular
Duty cycle ration of rectangular modulation signal 1% to 99%
Modulation depth accuracy 0.2%
Built-in process multimeter
Function Range Accuracy Resolution
DC voltage 0.0000 to +/-12.0000V 0.01% of value + 0.01% of range 100uV
DC current 0.0000 to 25.0000 mA 0.01% of value + 0.01% of range 100nA
Frequency 1.00000Hz to 15.0000kHz 0.005% 10uHz - 0.1Hz
Accessories (included):
Power cable 1 pc
Option 10 Test cable banana-banana 1m 1000V/32A black 1 pc (3 pcs for three-phase system)
Option 11 Test cable banana-banana 1m 1000V/32A red 1 pc (3 pcs for three-phase system)
Option 12 Test cable banana-banana 1m 1000V/32A blue 1 pc (3 pcs for three-phase system)
Option 13 Test cable banana-banana 1m 1000V/32A yellow 1 pc (3 pcs for three-phase system)
RS232 cable 1.5m 1 pc
Spare fuse 1 pc
Interface cable 2 pcs (for three-phase system)
Option 133-01 High current adapter 1 pc (for three-phase system)
Operation manual, CD 1 pc
Test report 1 pc
Options (extra order):
Option 140-50 Current coil x25, x50
Option 10 Test cable banana-banana 1000V/32A,1m,black
Option 11 Test cable banana-banana 1000V/32A,1m,red
Option 12 Test cable banana-banana 1000V/32A,1m,blue
Option 13 Test cable banana-banana 1000V/32A,1m,yellow
GPIB cable 2m Double shielded 2m IEEE488 cable
POWER Application SW for electric power transducers calibration