Tuesday, May 19, 2026

TEST-901D 1000A Primary Current Injector for CT Ratio & Polarity Testing

 The TEST-901D is an all-in-one integrated testing instrument engineered for CT on-site verification. It integrates 1000A primary current injection, CT ratio testing and polarity detection into a single compact unit. Adopting an advanced ARM control system and equipped with a 7-inch colorful touch screen, the tester delivers straightforward human-machine interaction. It is capable of precisely capturing primary and secondary current data, calculating CT transformation ratio, and identifying polarity conditions automatically.

Featuring a high-accuracy sensing module and an embedded thermal printer, the equipment supports on-site data printing and reliable measurement output. Comprehensive protective mechanisms including overload, short-circuit and over-temperature protection ensure safe and stable operation during heavy-duty testing procedures. Widely applicable for substation commissioning, switchgear inspection and routine power equipment maintenance, this primary injection tester offers dependable performance for various power system verification tasks.

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


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