PMT25000 Series Precision Current Transformers
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current
The better than 50ppm (parts-per-million accuracy) passive operation is further improved by activating an electronic processing
circuit that effectively removes core flux caused by voltage induced secondary burden. Electronic burden cancellation improves
the accuracy by typically a factor of five.
Primary currents range from 100 to 6000 amperes and with 5 or 1 ampere secondary.
Available in Multi-Ratio or
- Passive Operation Accuracy @ 0.5VA, 5 - 200% Excitation:
Ratio: +/-0.005%, Phase: +/-0.3 minutes
- Electronic Operation Accuracy @ 0.5VA, 5 - 200% Excitation:
Ratio: +/-0.001%, Phase: +/-0.1 minutes