POWER SUPERVISORY SYSTEM

PURPOSE: To obtain a power supervisory system in which the level of current flowing through a transformer is lowered in the case of transformer contract using V-connection transformers in order to lower the capacity of transformers to be used thus lowering the contract demand while delaying transiti...

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Bibliographic Details
Main Author MATSUOKA KIYOAKI
Format Patent
LanguageEnglish
Published 05.11.1996
Edition6
Subjects
ALARM SYSTEMS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
SYSTEMS FOR STORING ELECTRIC ENERGY
TESTING
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Summary:PURPOSE: To obtain a power supervisory system in which the level of current flowing through a transformer is lowered in the case of transformer contract using V-connection transformers in order to lower the capacity of transformers to be used thus lowering the contract demand while delaying transition to actual demand contract as long as possible and power consumption is limited within a target contract demand upon transition to actual demand contract. CONSTITUTION: The power supervisory system comprises a power receiving facility 1 equipped with transformers 2, a load 4 being driven by the power fed from the power receiving facility 1, a power supply circuit 3 between the power receiving facility 1 and the load 4, a switch circuit 5 for turning the load on/off, a current detector 6, a voltage detector 7, and an arithmetic section 9 for calculating the consumed power based on the outputs from the detectors and outputting a signal when the calculated consumed power exceeds a preset level.
Bibliography:Application Number: JP19950119399