If a meter has no possibility to open the internal link between voltage and current, the test must be performed with an Isolated Current Transformer (ICT) at each measurement position.
The CL2030-D has a built-in electronic compensation. The ICTs can be remote controlled by PC. A safety protection by controller is built in. This assures that the secondary side is closed in case of high burden or open circuit. Each ICT will be delivered with a company calibration certificate. A certificate issued by an ILAC accredited laboratory is optional available.
Specifications ICT CL2030-D
|Nominal Current||100 A, max. load 120 %|
|Ratio||1 : 1|
|Ratio error||±0.01 % (0.2 A … 120 A)|
±0.03 % (0.05 A < 0.2 A)
±0.05 % (0.01 A < 0.05 A)
|Phase displacement||±0.3’ (0.2 A … 120 A)|
± 3’ (0.05 A < 0.2 A)
± 8’ (0.01 A < 0.05 A)
|Max. rated secondary voltage||0.7 V|
|Max. rated burden for 10 mA ≤ I < 2 A||200 mΩ|
|Max. rated burden for I ≥ 2 A||0.7 V / I|
|Frequency range||45 Hz … 65 Hz|