The Doble TR3186 is a specialized, mechanism-specific travel transducer engineered to capture precise mechanical motion, timing, and travel data from circuit breakers utilizing ABB HMB 4/8 hydraulic mechanisms. By interfacing seamlessly with Doble TDR-series circuit breaker test sets (including the TDR900 and TDR9100), the TR3186 ensures highly accurate, non-invasive linear and velocity measurements without requiring complicated, generic field-rigging or custom brackets.
Mechanism-Specific Fit: Designed exclusively to mount directly onto ABB HMB 4 and HMB 8 hydraulic operating mechanisms, eliminating the setup error common with universal/generic mounting kits.
Plug-and-Play Integration: Connects directly to the auxiliary analog/digital transducer channels of Doble TDR900 and TDR9100 circuit breaker test systems.
High-Precision Motion Capture: Translates the rotational mechanics of the HMB linkage into precise linear position, stroke length, over-travel, and bounce data.
Rugged Field Construction: Built to withstand the harsh, high-vibration environment of high-voltage switchgear testing in utility and industrial substations.
| Attribute | Specification |
| Manufacturer | Doble Engineering Company |
| Model Number | TR3186 |
| Compatible Mechanisms | ABB HMB 4, ABB HMB 8 |
| Primary Application | High-Voltage Circuit Breaker Time & Travel Testing |
| Primary Host Units | Doble TDR900, Doble TDR9100 |
| Transducer Type | Specialized Digital Rotary / Mechanism Adapter |
| Data Interface | Multi-pin connection compatible with Doble TDR auxiliary channels |
