Current Injection Tester

Comprehensive testing of entire circuit path: Unlike secondary injection, primary injection testers send high current through the entire system, including sensors, cabling, trip mechanisms, and contacts, ensuring every part operates correctly under load.

Performance evaluation under real conditions: These testers can simulate real fault conditions to verify that high-voltage equipment—such as circuit breakers and transformers—can withstand and properly interrupt high-fault currents.

Improved safety and reliability: By testing for malfunctions before they happen (preventative maintenance), these testers prevent catastrophic equipment failure, reduce downtime, and ensure personnel safety.

Commissioning new installations: They are crucial for verifying that new equipment is properly installed, calibrated, and free from manufacturing or shipping damage.

Low Voltage Circuit Breaker Testing (Primary Injection): Used to test the trip unit, arc chutes, and mechanism of circuit breakers by injecting high current (hundreds to tens of thousands of amps) to

Commissioning New Installations: Ensures that newly installed switchgear, transformers, and substation equipment are wired correctly and function properly before going online.

Temperature Rise Tests: Used to verify that electrical components can handle designed, long-term loads without overheating.

Current Transformer (CT) Testing: Validates CT ratio, polarity, and saturation by injecting primary current and measuring the corresponding secondary current.

Protection Relay Calibration: Verifies that protection relays and trip units (especially direct-acting, low-voltage types) detect faults and operate within specified times, preventing damage during real-world faults.