Toshiba Current Relay RC803A-HP1 Manuel d'utilisateur Page 1

TOSHIBAI NSTRUCTI ON MANUALCURRENT RELAYRC803A-HP1TOSHIEA CORPORATION

TOSHIBA6F9EOO90ACJ-Phase Power SUDDIYCurrent relayNote: The RC803’s outDutcontacts are shownwith Dower sourceaDDl ied.Fig. 3 Application Example4.3 Li

ToSHIEA6F9EOO904.4 TransformersTo use this current relay for detecting overcurrent ontransformers. it is necessary to set the detection delay tilerwit

TOSHISA6F9E0090503-$7 Hole7zHountino holesFig. 4 DimensionsB!3t.- ll-

TOSHIBAGF9EOO906. AdjustDents6.1 Current setting(1) When detected current is in a range of 0.5 - 5A:After confirming that the current value under nora

-TOSHIEA6F9Eoo9o6.3 Setting the ResDonse delay timeAdjust the set tile according to the ourgose of detection (I.e.overcurrent or undercurrent). The se

TOSHIBA6F9E0090(4) When the Dower source is aDDlied. the relay is excited and theOutDut contact’s states are reversed. The relationshiD betweenthe inp

TOSHIBA6F9E0090(b) When undercurrent or disconnection is detectedAt the sale time the lain circuit switch is turned OH, thestarting current and rated

TOSHIBA6F9E0090(6) If the relay does not operate in the above test, check ifthe current setting is correct or if the ingut signal isabove the set dete

-TOSHIBA6F9E00908. Cover RerovalTo adjust the current and time settings the cover must be raaoved.Reaove the cover by amlYing a force in the direction

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-TOSHIBA6F9E0090CONTENTS1.General Descrigtion__-----_-__----____---------------------22.Check Before Using-__-----__-_---_-_______________________-22.

-=rosHl=A6F9E0090Please thoroughly read this instruction manual before using theRC803A Current SensinD Relay.1. General DescriDtionThis current relay

TOSHIBA6F9EO0902.2 Specifications_____________-_-________________________------------------------------ITEHRated CurrentRange of currentsensingInout c

-TOSHIEA6F9E0090ITEHAmbient temp.rangeTemp. errorDielectric with-stand voltageImgulse with-stand voltageInsulationresistanceVibration-Oscillation-1aou

-TOSHIBA6F9E0090WEHA ACRatingDesignationB300Inductive loadt-K&-120AC24024DC 120240ITEH SPECIFICATIONSHysteresisAgDrox. 10X of ooerating value.Powe

TOSHIBA6F9E0090Detection delay.I .pL1mrellt40level (0.3-O.b5A)\Undercurrent detect imgFiD. 1 Characteristics1. APDl ication4.1 Overcurrent Detection o

TOSHIBA6F9Eoo90the uotor from being damaged.If the detected current is above!iA. and in case of a high voltage circuit, use an external CT andconnect

-TOSHIBA6F9E0090further, when this relay is used in a uotor circuit, thedetection delay timer should be set lonfler than the startinvtime (about 120%)