Title:
CONTROL DEVICE OF POWER SUPPLY FOR FREEZING AND AIR CONDITIONING
Document Type and Number:
Japanese Patent JPS6111827
Kind Code:
A
Abstract:
PURPOSE:To reduce the capacity of a transformer by feeding back the change of a freezing/air conditioning temperature to a control device for turning on/off freezers/air conditioners as a set point necessary for the protection of the transformer. CONSTITUTION:The freezers/air conditioners 1a-1n are connected to the oil- immersed transformer 2 through electromagnetic contacts 11a-11n. A sensor 12 for measuring the peripheral temperatur of the transformer 2 is arranged at the vicinity of the transformer 2. A rated value of the transformer 2 is set in a setting part 7. The detected output of a sensor 15 for detecting the temperatures of rooms cooled by the freezers/air conditioners 1a-1n is applied to a peripheral temperature input part 13 together with the data of the sensor 12. An operation part 8 calculates a rated current, a load ratio, etc. of the transformer 2 on the basis of the data of a transformer current input part 6, the peripheral temperature input part 13 and a setting part 7.
Inventors:
SASAKI YOSHIO
Application Number:
JP13458884A
Publication Date:
January 20, 1986
Filing Date:
June 27, 1984
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F24F11/02; F25B49/00; F25D15/00; G05F1/66; H02J3/00; (IPC1-7): F24F11/02; F25B49/00; F25D15/00; G05F1/66
Domestic Patent References:
| JPS5553132A | 1980-04-18 | |||
| JPS58154212A | 1983-09-13 | |||
| JPS5795139A | 1982-06-12 | |||
| JPS5719538A | 1982-02-01 |
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)
Previous Patent: Rice cooker
Next Patent: FUEL ELECTRODE MATERIAL FOR FUEL CELL, AND MANUFACTURE THEREOF
Next Patent: FUEL ELECTRODE MATERIAL FOR FUEL CELL, AND MANUFACTURE THEREOF