Three phase electrical load protection device

申请公布号：US4825328(A)

申请号：US19870062134

申请日期：1987.06.12

申请公布日期：1989.04.25

申请人：

WATSCO COMPONENTS, INC.

发明人：IZAGUIRRE, SR., LOWELL F.

分类号：H02H3/20;H02H11/00;(IPC1-7):H02H3/20;H02H3/24

主分类号：H02H3/20

摘要：A three phase electrical load protection device is disclosed including an input transducer for detecting each phase voltage and the direction of rotation of the phases of a three phase power system. A control monitor is disclosed for monitoring signals from the input transducer representative of the highest and lowest phase voltages and the direction of rotation of the phases for controlling an output device for disconnecting the electrical load when improper supply conditions are detected and monitored.

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TIRE LOADER

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SHAPING METHOD OF RIM

WATER-DROP CAPTURING APPARATUS FOR STEAM TURBINE

MANUFACTURE OF CATIONIC POLYAZO DYE

PNEUMATISK TRYCKSAENDARE

MULTIPLE STAGE TYPE WATER POWER MACHINE

MEMBRANAKTIVT PLANTEVAEKSTFREMMENDE PRAEPARAT

FREMGANGSMAADE TIL FREMSTILLING AF N-(4-( (2,4-DIAMINO-6-PTERIDINYL) METHYL) METHYLAMINO) BENZOYL) GLUTAMINSYRE

E IKKE-PUNKTERBARE DAEK OG FREMGANGSMAADE TIL MONTERING AF DISS

BATTERIELEKTROLYT

SETT OCH ANORDNING FOR IGENKENNING AV STAVADE ORD

AMMONIOMETYLFOERENINGAR FARMACEUTISKA PREPARAT INNEHAOLLANDE DESSA FOERENINGAR OCH ANVAENDNING AV SISTNAEMNDA

FOERFARANDE FOER FRAMSTAELLNING AV N-/4-/(2,4-DIAMINO-6-PTERIDINYL)-METYL/METYLAMINO/BENZOYL/GLUTAMINSYRA

FIXABLE HEAT-SENSITIVE RECORDING MATERIAL

NOVEL DERIVATIVES OF CYCLOPROPANECARBOXYLIC ACID, MANUFACTURE, USE FOR REPULSION OF PLANT, ANIMAL AND HOUSE INSECT, COMPOSITION CONTAINING THEM AND NOVEL INTERMEDIATE