Voltech CT1000 Clamp-On Current Transformer

Rent Voltech CT1000 Clamp-On Current Transformer
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The Voltech CT1000 is a toroidally wound AC current transformer that extends the range of Voltech
power analyzers such as the PM100, PM300 or PM3000A to 1200A rms. Close- tolerance current
ratios provide a measurement accuracy of better than 0.2%, making the CT1000 suitable for precision-grade measurements.

The CT1000 is housed in a fully insulated, shock-resistant casing with a core aperture that accommodates large-diameter cables or rectangular busbars. To minimize the risk of electrical shock, the CT1000 has 4mm safety sockets for the leads connecting it to the power analyzer. In addition, a novel over-voltage protection circuit limits the voltage on the output terminals to 50V peak, if the transformer’s secondary winding is inadvertently open-circuited.


Frequency Range: 45Hz to 1kHz
Current Range: 100:1 ratio 10A to 120A rms
1000:1 ratio 100A to 1200A rms
Maximum Input Current: 1000A continuous
2000A for 1 hour
Accuracy (23°C ± 5°C): ±0.2% of specified ratio
Phase Error (23°C ± 5°C): Better than ±0.1° at 50Hz
Maximum Burden: 0.15VA for specified accuracy (equivalent to the input of any Voltech power analyzer plus the test leads provided)
Dielectric Strength: 4kV at 50Hz for 1 minute
Temperature Range: Operating: -10°C to +50°C
Storage: -25°C to +85°C