For Sale T&R 750ADM-H mk2 Good Condition and Ready To Use, A compact and rugged primary current injection tester, designed by T&R Test Equipment Ltd. It is widely used by utility companies, commissioning teams and industrial electrical service providers to test power system protection devices, circuit breakers and current transformers (CTs).
🛠️ Core Capabilities & Applications
The system is built for checking the integrity of the whole protection chain—from the primary conductor through to the final trip mechanism.
- Circuit Breaker Testing: Verifies thermal, magnetic, and electronic trip characteristics.
- Relay Testing: Primary injection testing of over-current, under-current, and grounding relays.
- CT Ratio Verification: Aids in analyzing current transformer ratios and polarity.
- Substation Commissioning: Essential tool for verifying new installations and standard ongoing maintenance
Key Technical Specifications
| Feature | Specification Details |
|---|---|
| Primary Output Current | Up to 750A AC (suited for low-power, short-duration tasks) |
| Max No-Load Voltage | 5V AC (compared to 3.5V on the standard non-H version) |
| Secondary Injection Output | 16V AC at 40A (ideal for higher impedance or secondary testing) |
| Metering System | True RMS digital ammeter with 1-cycle data capture (<20ms) |
| Timing Resolution | Multi-function digital timer capturing trip, reset, and reclose times |
| Safety Features | Electronic overcurrent trips, thermal protection, and input circuit breakers |
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Benicio de santos –
The packaging was neat and very secure. The wooden box was wrapped in double bubble wrap and the complete manual booklet. It arrived safely at my place.
Lucas Joan –
This thing is a lifesaver on jobs. Lightweight to carry around but handles rugged field use perfectly.