Apparatus and method for measuring electric power consumed in el

Details Apparatus and method for measuring electric power consumed in el Apparatus and method for measuring electric power consumed in el

1994-09-16

1996-08-13

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219497, 219508, 219486, 219485, 219505, 219481, H05B 102

Patent

active

055458769

ABSTRACT:
This Measuring Method of the electric power consumption of the Inverter Cooker enables automatic measurements of the electric power consumption for the keep-warm function, whether actual keep-warm temperature is set somewhat higher or lower, so that the productivity of the Cooker will be improved and judgement for defects of the keep-warm heaters made easier. The method comprises; firstly step to clear the 1st and 2nd timers and to check input of the measuring key of the power consumption; if when input of the measuring key is detected, step to heat the top-heater through the 1st timer up to the 1st set-time and to measure at this point the power consumption to judge whether there is an abnormal state in the top-heater; when the 1st set-time elapses, step to heat the top and side-heaters for the period up to the 2nd set-time and to measure at this point the power consumption to check whether there is defect in the side-heater; when the 2nd-set time elapses, step to suspend heating of the top and side-heaters and detect the keep-warm temperature up to that time and compare to the reference temperature; and step to heat up the top and side heaters in case when the keep-warm temperature is found lower than the reference, and to suspend heating when the keep-warm temperature is higher.

REFERENCES:
patent: 4687910 (1987-08-01), Aoshima et al.
patent: 4695710 (1987-09-01), Yamashita et al.
patent: 4720623 (1988-01-01), DiCesare et al.
patent: 4943706 (1990-07-01), Lyall et al.
patent: 5189283 (1993-02-01), Carl, Jr. et al.

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