54 results about "Thermal rating" patented technology

Provided is: an incorporated device incorporating an electrolytic bath and a power control device capable of minimizing any increase in temperature of the electrolytic bath and inhibiting a decrease in electrode lifespan; and a method for controlling the incorporated device. The incorporated device incorporates an electrolytic bath and a power control device capable of minimizing any increase in temperature of the electrolytic bath and inhibiting a decrease in electrode lifespan. The power control device is provided with: a voltage current control circuit for feeding, in a constant current control mode, an electrolytic current to the electrolytic bath while performing a control so that the electrolytic current does not exceed the current value of a reference current set in advance in accordance with the rated current of a unit cell constituting the electrolytic bath; and a temperature detection unit for detecting a temperature of the interior of the incorporated device and the environmental temperature on the outside of the electrolytic bath. When the temperature detected by the temperature detection unit moves out of a preset rated temperature range, the voltage current control circuit stops the feeding of the electrolytic current, and when the temperature detected by the temperature detection unit again falls within the rated temperature range, the voltage current control circuit restarts the feeding of the electrolytic current.

A recessed light fixture includes a thermally protected light emitting diode (“LED”) module. The thermally protected LED module includes a thermal protector positioned in series between a source of electrical power and an LED driver and is configured to open a circuit to prevent power from being supplied by the power source to the LED driver for an LED package when a thermal rating or activation temperature of the thermal protector is exceeded. For example, the maximum operating temperature of the LED driver may be 90 degrees Celsius, and the thermal rating of the thermal protector may be 80 degrees Celsius, and when the temperature of the driver or a mounting bracket upon which the driver is mounted reaches 80 degrees Celsius, the thermal protector opens a circuit and removes current flow from the power source to the driver, thereby removing power to the LED package.

Method for measuring the power line thermal rating or maximum allowable current rating of an overhead power line with respect to a suspended / anchored cable span (2), comprising at least the following steps of:monitoring a motion of at least one point P of said suspended / anchored cable span (2) over a time interval;monitoring actual line current I, in A, over said time interval;determining an actual sag of said suspended / anchored cable, as a variable of actual line current;measuring or determining the effective wind speed of said suspended / anchored cable span (2) over said time interval;determining a sag reserve DF, in m, for thermal rating, which is the distance between the actual sag and a maximum allowable sag;determining the rate of change, tan(α), in m / A2, of the actual sag versus the square of the line current for the effective wind speed;anddetermining the power line thermal rating of the overhead power line, or ampacity, linked to a corresponding safety clearance, at measured or determined effective wind speed, by adding the square of actual current I to the ratio of the sag reserve DF by the sag rate of change, tan(α), at the effective wind speed, and taking the square root of that addition, i.e.Ampacity=I2+DFtan⁡(α),wherein ampacity is in amperes.