Large‑Current Primary Injection Tester

The SLQ Large‑Current Primary Injection Tester is a powerful tool used to verify the accuracy and operation of protection relays, circuit breakers, current transformers (CTs), and transformer windings by injecting high current directly into the primary circuit. Capable of delivering precise and stable current up to high amperage values, this tester ensures reliable functionality of critical electrical protection systems. Its rugged portable design allows field deployment in substations, commissioning sites, and industrial facilities. The unit features built-in safety interlocks, overload protection, and easy-to-use controls. Certified with CE and ISO, it adheres to international standards such as IEC 60255 and IEEE C37.x series.

Key Features:

• High-current primary injection for testing relays, CTs, breakers, and transformer windings

• Delivers accurate and stable current output

• Safety features including interlocks and overload protection

• Portable and robust for field use

• User-friendly control interface and measurement display

• CE and ISO certified

• Ideal for utility commissioning, substation maintenance, and factory testing

Product Table (English)

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