1. CALPORT 300 Three-Phase Portable Reference Standard

2. Outstanding customer value
One unit
Analysis of the load
for all tests
and mains quality
On side
Test of CT- and
Meter test
PT-transformers
Control of installation
Periodical tests pre-
prevents connection
vent financial losses
circuit errors

3. Particularities I2h and U2h measurements Harmonics measurement
Vector diagram
Burden measurements
Control of CT- and PT-transformers
I2h and U2h measurements
Print functions
Meter error measurements
Memory functions
Harmonics measurement

4. CALPORT 300 Three-phase Portable Reference Standard
V (phase-neutral)
1 mA … 120 A direct connections
Clip-on CTs: 100A / 1.000A / LEMflex© up to 3.000A / Hot sticks for measure-ment on high voltage potential
Vector diagram, harmonics spectrum, wave form and rotary field display
Burden measurement and ratio tests of CT’s and PT’s
Accuracy  0.05 %

5. Connections [1] Current-Inputs I1, I2, I3
[2] Current-Outputs I1, I2, I3
[3] Phase connection for voltage
[4] Neutral connection for voltage
[5] 100 A CTs connector
[6] 1000 A CTs connector
[7] LEMflex (up to 3000 A) connector
[8] Hot sticks connector
[9] Serial interface RS 232 C

6. Connections [10] Compact flash card slot [11] Impulse inputs 1, 2, 3
[12] Impulse outputs 1, 2, 3
[13] Auxiliary supply connector
[14] Graphical colour display
[15] Rotary switch
[16] Cursor keys
[17] Alphanumeric key pad

7. Options of current clamps to the CALPORT 300
Error compensated clip-on CT’s for measurements in the range 50 mA … 100 A
Clip-on CTs for measurements in the range 2 A … 1000 A
Flexible current transformers LEMflex for measurements up to 30 / 300 / 3000 A
Hot sticks for measurements on high voltage potential

8. Operation Concept
Symbols Display Rotary switch / Control Keys   

9. Software Main Menu First Row  Meter Testing  Measurement 
Harmonics, Oscilloscope 
Energy Measurement 
Transformer Test 
Further Tests 
Installation (Setup) 

10. Software Measurement – Basic Quantities Second Row 
Measurement UI  
Data storage 

11. Software Measurement – Basic Quantities Second Row  Measurement PQS 
Data storage 

12. Software Measurement – Basic Quantities Second Row 
Measurement UIPQS 
Data storage 

13. Software Measurement – Vector Diagram Second Row  Vector analysis 
Data storage 

14. Software Measurement – Oscilloscop First Row  Selection of U 
Selection of I 
Data storage 
Exit to previous menu 

15. Software Measurement – Harmonics First Row  Selection of U 
Selection of phase 
Scale 
Data storage 
Exit to previous menu 

16. Software Measurement – Energy Second Row  Start energy measurement 
Reset and restart  energy measurement
Voltage and current  range settings menu
Data storage 

17. Software Measurement – Register test Second Row 
Start or stop register test 
Enter counters before meas. 
Enter counters after meas. 
Reset register test 
Setup register test 
Range settings 
Data storage 

18. Software Measurement – Voltage Burden First Row  Selection of phase 
Settings for voltage  burden measurement
Data storage 
Exit to previous menu 

19. Software Measurement – Current Burden First Row  Selection of phase 
Settings for current  burden measurement
Data storage 
Exit to previous menu 

20. Software Measurement – Voltage Transformer Ratio First Row 
Reference for voltage  ratio calculation
Definition of reference  NP or NS
Data storage 
Exit to previous menu 

21. Software Measurement – Current Transformer Ratio First Row 
Reference for current  ratio calculation
Definition of reference 
Data storage 
Exit to previous menu 

22. Software Error measurement Second Row  Start/Stop error measurement 
Restart of error measurement  Setup of error measurement 
Data storage 

23. Software Special function – fRef Test First Row 
Input of reference frequency 
Input of duration of test 
Start fRef test 
Data storage 
Exit to previous menu 

24. Software Storage and printout of test results First Row 
Data storage 
Print data 
Preview of results 
Printer and save  parameter settings
Exit to previous menu 

25. Software Storage and printout of test results Second Row 
Administrative data set 
Customer data set 
General info data set 
Meter data sets 
Other checks dataset 
Comment 

26. Software
Storage and printout of test results

27. Connection example
Testing of an installed direct connected 4-wire meter

28. Connection example
Testing of an direct connected 4-wire meter

29. Connection example
Burden measurement of voltage transformer

30. Connection example
Burden measurement of current transformer

31. Connection example
Measurement of transformer ratio

32. Connection example
Hotsticks Measurement

33. Windows©-Software CALSOFT Selection of real time readout or
readout of sets of data from CALPORT 300 memory

34. Windows©-Software
CALSOFT
Display of read data on PC monitor