| 摘要 |
<p>Disclosed is amodular thermal release (TM) to issue the trip command to the mechanism of the breaker. The thermal release consists of a heater (1), bimetal (2), bimetal calibration screw (3), shaft (4), temperature compensation bimetal (5), latch (6) and tripper (7). During overload condition, as discussed earlier, bimetal (2) gets deflected by indirect heating. This deflection rotates the shaft (4) which in turn gives signal to temperature compensation bimetal (5). The compensation bimetal (5) then de-latches the latching system so that the tripper (7) issues the trip command to the mechanism. In one implementation, in present invention, the TM release is calibrated in a single iteration and from single access point. Further, the loading of bimetal is avoided during hot calibration as the calibration is done through the temperature compensation bimetal.</p> |
