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.
| Specifications |
|
| CT1000 |
|
| Feature | Parameter |
| 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 |
| Operating Temperature Range | -10°C to +50°C |
| Storage Temperature Range | -25°C to +85°C |
