Application

Three phase power/energy calibrator (C300B) is suitable for Automatic testing/calibration of 

  • Analogue instrument such as AC voltmeter, AC Ammeter, Frequency meter, Power factor meter, Watt/VA/VAr meter, clamp meters
  • Energy meter
  • Electrical measuring transducer (voltage, current, power, power factor, phase angle, frequency etc)
  • Current Transformer according to EN60044 to measure ratio and phase angle error
  • AC current clamps
  • Protective relays (EN 60255 checking of tripping time & tripping level for characteristics of ANSI#21 Distance relays, ANSI#27/59 Under/over voltage relays, ANSI#32 Directional power relays, ANSI#50/51 Time overcurrent relays, ANSI#81 Frequency relays and more protective relays.
  • Power Quality analyser, recorder and flicker meters as per IEC 61000-4-30 class A for EN50160 compatibility or individual requirements of user
  • Suitable for calibration of measuring instruments used in aviation industry

Features

  • Generation Voltage up to 560 V,  Current up to 120A, (360 A in single phase mode)
  • Frequency 40-500 Hz
  • Phase angle 0 to 360°
  • Accuracy  0.02% and 0.05%
  • Single product in a single case without auxiliary amplifier
  • Measurement of 4-20mA & 0-10v signal is available hence no additional instrument required for transducer testing
  • High burden of output to drive analogue instrument
  • Automatic and manual testing
  • Easy control of output signal (ON/OFF standby mode)
  • Harmonic Generation (multiple or individual harmonic along with possibility to set amplitude (up to 100%) and phase (up to 360°) angle w.r.t. fundamental) in each phase voltage & current
  • Inter-harmonic Generation up to 3200 Hz, amplitude and phase angle
  • Voltage Dips, Interruption, sag & swell as per IEC 61000-4-11 & 34
  • Slow & fast ramping functionality can be used for testing of relay
  • The C300B generates voltage changes for performance testing and displays the results in Pst / Plt severity including combined frequency/voltage changes, harmonic/interharmonic distortion and phase jumps as per IEC61000-4-15
  • Various wave shape, phase fired and burst waveform

Technical Specification

Specification for the sinusoidal signals
Parameter Range Settings span Resolution Uncertainty 1) Maximum load
class 0.02 class 0.05
Voltage U 70V 0.5000...70.0000V 1.000...140.000V ±0.02% 2)4) ±0.05% 2)4) 560mA@70V (Ipeak=800mA)
140V 1.000...140.000V 0.001V 280mA@140V (Ipeak=400mA)
280V 2.000...280.000V 0.001V 140mA@280V (Ipeak=400mA)
560V 5.000...560.000V 0.001V 70mA@560V (Ipeak=100mA)
Voltage short term [1h] stability ±0.005% 2) ±0.010% 2)
Voltage long term [1year] stability ±0.01% 2) ±0.02% 2)
Voltage temperature drift per 1°C ±0.0005% 2) ±0.0010% 2)
Current I 0.5A 0.001000.. 0.500000A 0.000001A ±0.02% 2)5) ±0.05% 2)5) 17V@0.5A
6A 0.05000. 6.00000A 0.00001A 8.5V@6A
20A 0.2000. 20.0000A 0.0001A 3.3V@20A
120A 1.000   120.000A 0.001A 0.95V@60A  7)0.70V@120A 7)
Current short term [1h] stability ±0.005% 2) ±0.010% 2)
Current long term [1year] stability ±0.01% 2) ±0.02% 2)
Current temperature drift per 1°C ±0.0005% 2) ±0.0010% 2)
Frequency f 40.000. 500.000Hz 0.001Hz ±0.005%
Phase shift j 0.00...±360.00° 0.01° ±0.05° 2) ±0.10° 2)
Active power P 0...3x67200.0W 0.00001-1W ±0.02% 2)3) ±0.05% 2)3)
Reactive power Q 0...3x67200.0var 0.00001-1var ±0.02% 2)3) ±0.05% 2)3)
Apparent power S 0...3x67200.0VA 0.00001-1VA ±0.02% 2) ±0.05% 2)
Power short term [1h] stability ±0.005% 2)8) ±0.010% 2)8)
Power long term [1year] stability ±0.01% 2)8) ±0.02% 2)8)
Power temperature drift per 1°C ±0.0005% 2) ±0.0010% 2)
Time 6) 1...36000s 1s ±0.01% ±0.001s
Energy calculated from settings of power and time ±0.02% 2)3) ±0.05% 2)3)
  1. absolute extended uncertainty under confidence level of 95% covers reference uncertainty of standards, stability in 12 months, influence quantities (ambient temperature in range +20…+26°C, humidity and power supply voltage according to the table 2.3, load acc. to table 2.1, frequency in range 45…65Hz) and nonlinearity. For frequency band below 45Hz and above 65Hz – linear rise up typically to double value for frequency 40Hz and 500Hz
  2. of setting value, for settings from 10% of current range and 30% of voltage range and for linear load of voltage and current
  3. uncertainty of power P(Q) under cosj(sinj)=1, for cosj(sinj)¹1 linear rise up to 0.15% (class 0.02) or 0.30% (class 0.05) for cosj(sinj)=0.5
  4. for voltage below 30% of range uncertainty 0.006% of range (class 0.02) or 0.015% of range (class 0.05)
  5. for current below 10% of range uncertainty 0.002% of range (class 0.02) or 0.005% of range (class 0.05)
  6. for energy dosage
  7. 0.85V@60A and 0.50V@120A using the AKD300 current cables length 1m
  8. stability of power S and P(Q) under cosj(sinj)=1, for cosj(sinj)¹1 linear rise up to 0.04% for cosj(sinj)=0.5
General parameters
Weight 28kg
Width x height x depth (480x200x451)mm
Width x height x depth (with feet and handle) (480x200x490)mm
Power supply 90V…264V / 47...63Hz / 900VA

Specification for Non-Sinusoidal Signals and time varying signal

Specification for the nonsinusoidal and time-varying signals
Parameter Settings span Resolution Uncertainty 1) Conditions
class 0.02 class 0.05
Harmonics magnitude 0...100% output value 0.01% ±0.02% 2) up to 64th or 3200Hz
phase 0…360° 0.01° ±0.5°  2)
Interharmonics in voltage 0...30% output value 0.01% ±0.2% 3) for 16…9000Hz
Dips magnitude 0...100% nominal value 6 digits ±0.05% 4)
duration 0.02…999s 0.001s 0.001s
Swells magnitude 0...200% nominal value 6 digits ±0.05% 4)
duration 0.02…999s 0.001s 0.001s
Flicker Pst 0…40 0.00001 ±1% acc. IEC61000-4-15
modulation 0.1...4000 changes/min or 0.000833…33.33Hz 7 digits or 4 digits
duration 1s…999h 1s
  1. absolute extended uncertainty under confidence level of 95% covers reference uncertainty of standards, stability in 12 months, for 45-65Hz
  2. 0,02% of output value and 0,5° for frequency range of harmonics 80-120Hz with linear rise up to 0.2% of output value and 4° for 3200Hz
  3. 0,2% of output value for frequency range of interharmonics 16-120Hz with linear rise up to 2% of output value for 9000Hz
  4. with uncertainty of voltage and current for calibrator class 0.05 in setting span of voltage and current

Parameters for Input and output for Automatic Test Functions

Parameters of Inputs and Outputs for automatic tests functions
Input / output Range Uncertainty 1) Number of inputs/outputs Conditions
Impulse Input for counting pulses from electricity meter, photo scanning head or reference meter 0...2V/4...30V 0.001% @ t>1s 2 frequency range 3) 0.000001Hz…200kHz max test time 1193[h]/f[kHz]
Multimeter Input DC Voltage 0...±14.0000V 0.02% + 0.5mV 1
DC Current 0... ±24.0000mA 0.02% + 1mA
AC Voltage 0...10.0000V 0.05% + 0.5mV in 45…65Hz range
AC Current 0. 16.0000mA 0.05% + 1.6uA
0. 200.000mA 0.05% + 10uA
0. 6.0000A 0.05% + 300uA
Phase shift 0…360.00° ref. to I1 0.1°    2)
Start/Stop Input for time measurement 0.001   100.000s 0.001s 3 range of input voltage 15...250V DC/AC
Binary Output of Operate/Standby for signalling state of Calibrator time of state change 0.001s 2 output load 250VDC/0.5A/10VA
Impulse Output for C300B testing 0.0001Hz…210kHz 0.000…0.009% 4) 1 open collector 28V/100mA
  1. absolute extended uncertainty under confidence level of 95% including stability in 12 months
  2. from 5% of current and voltage range
  3. fmax=120kHz for both inputs simultaneously
  4. 0.003%+0.006%/t[s] for f>2Hz and 0.003%x√f[Hz] for f<2Hz, where t is test time and f is output frequency