Friday, May 8, 2026

TEST-901D Full Version High Precision CT Ratio Polarity Tester

The TEST-901D Full Version is a professional 1000A primary current injection test set, specially designed for CT ratio test, polarity check and primary current injection test. It is equipped with a 7-inch color touch LCD, high-precision measurement module, built-in thermal printer and full-range protection functions. Featuring compact structure, light weight and stable performance, it is widely used for current transformer, protective relay and circuit breaker testing in substation commissioning and maintenance.

For more product details, please visit our official website: https://www.gfuvegroup.com/primary-injection-test-equipment/1000A-primary-current-injection-test-equipment.html



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