Toshiba RC803A-HP1の取扱説明書

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Summary
  • Toshiba RC803A-HP1 - page 1

    TOSHIBA I NSTRUCTI ON MANUAL CURRENT RELAY RC803A-HP1 TOSHIEA CORPORATION ...

  • Toshiba RC803A-HP1 - page 2

    - TOSHIBA 6F9E0090 CONTENTS 1. General Descrigtion __-----_-__----____--------------------- 2 2. Check Before Using -__-----__-_---_-_______________________- 2 2.1 External Amearance -_-_-_---_-__-__-_---------------- 2 2.2 Specifications _--_---_-__-__--_-__------------------- 3 3. DescriDtion of ODeration __-______-_______-__--------------- 5 4. ...

  • Toshiba RC803A-HP1 - page 3

    - =rosHl=A 6F9E0090 Please thoroughly read this instruction manual before using the RC803A Current SensinD Relay. 1. General DescriDtion This current relay is designed to detect current in AC circuits with a wide range of aDDiications, e.t., detection of abnoraai current of VariOUS electrical eauiment due to overloads or broken circuits (e.g., heat ...

  • Toshiba RC803A-HP1 - page 4

    TOSHIBA 6F9EO090 2.2 Specifications _____________-_-________________________------------------------------ ITEH Rated Current Range of current sensing Inout circuit voltage Type of Current ReSDOnSe delay time-adjustable range Detection delay tile-adjustable range Operating volt. SPECIFICATIDHS 5A (continuous) 0.5 - 5A (For current above this range, ...

  • Toshiba RC803A-HP1 - page 5

    - TOSHIEA 6F9E0090 ITEH Ambient temp. range Temp. error Dielectric with- stand voltage Imgulse with- stand voltage Insulation resistance Vibration -Oscillation -1aoulse Overcurrent intensity Output contact rating (250VAC aax. I SPECIFICATIORS -10 - *SO% +10X at t30Y Between terminals and ground 2DOOVAC for 1 #in. Between terminals and ground 1 X 40 ...

  • Toshiba RC803A-HP1 - page 6

    - TOSHIBA 6F9E0090 WEHA AC Rating Designation B300 Inductive load t-K&- 120 AC 240 24 DC 120 240 ITEH SPECIFICATIONS Hysteresis AgDrox. 10X of ooerating value. Power consumption oDperating Power 3.5VA olnput Circuit D.lVA (when 5A is applied) Height .75kg (1.7 lb) I Break Continuous 5A SA (p.f.-0.4) 3A SA _--_________________-----------------. ...

  • Toshiba RC803A-HP1 - page 7

    TOSHIBA 6F9E0090 Detection delay .I .pL1 mrellt 4 0 level (0.3-O.b5A) Undercurrent detect img FiD. 1 Characteristics 1. APDl ication 4.1 Overcurrent Detection on Hotors An aDDlication example Is shown in Fig. 2. In this clrcult. an excessive load is detected by detecting the overcurrent of a motor and the lain circuit is ooend to Protect - 6- ...

  • Toshiba RC803A-HP1 - page 8

    TOSHIBA 6F9Eoo90 the uotor from being damaged. If the detected current is above !iA. and in case of a high voltage circuit, use an external CT and connect the secondary side of CT to the relay as shown in the following figure: AC3-Phase Power SuDDly Ll Y 23 1 I A I # I1 ‘I = Current relay Note: The RCB03’s OUtDUt contacts are shown with Dower s ...

  • Toshiba RC803A-HP1 - page 9

    - TOSHIBA 6F9E0090 further, when this relay is used in a uotor circuit, the detection delay timer should be set lonfler than the startinv time (about 120%) so that this relay is not actuated by inrush current. If current flowinp in the uain circuit becomes abnormal after the tiee Deriod of the detection delay timer has elapsed. the relay is actuate ...

  • Toshiba RC803A-HP1 - page 10

    TOSHIBA 6F9EOO90 ACJ-Phase Power SUDDIY Current relay Note: The RC803’s outDut contacts are shown with Dower source aDDl ied. Fig. 3 Application Example 4.3 Limiting Startino current of Rotors Many eotors of uediua and large capacity use a aethod to start by limiting starting current. 8y detectino the lain circuit current, this relay can automati ...

  • Toshiba RC803A-HP1 - page 11

    ToSHIEA 6F9EOO90 4.4 Transformers To use this current relay for detecting overcurrent on transformers. it is necessary to set the detection delay tiler with the inrush current of transforeer taken into consideration. 4.5 Heaters, LauDs and other Circuits This relay can be used to detect the disconnection of circuits by sensing the existence of curr ...

  • Toshiba RC803A-HP1 - page 12

    TOSHISA 6F9E0090 50 3-$7 Hole 7 z Hountino holes Fig. 4 Dimensions B !3 t. - ll- ...

  • Toshiba RC803A-HP1 - page 13

    TOSHIBA GF9EOO90 6. AdjustDents 6.1 Current setting (1) When detected current is in a range of 0.5 - 5A: After confirming that the current value under noraal load condition is in a range of 0.5 - SA, set the current adjusting knob to the desired detecting value. (2) When detected current is above 5A: Using an external CT (current transformer), prop ...

  • Toshiba RC803A-HP1 - page 14

    - TOSHIEA 6F9Eoo9o 6.3 Setting the ResDonse delay time Adjust the set tile according to the ourgose of detection (I.e. overcurrent or undercurrent). The set tire for the resoonse delay varies ger aDDllcation. Host applications cay not need any delay tile. It is aainly used to prevent nuisance trioging (ride through) by ignoring aoeentary load glich ...

  • Toshiba RC803A-HP1 - page 15

    TOSHIBA 6F9E0090 (4) When the Dower source is aDDlied. the relay is excited and the OutDut contact’s states are reversed. The relationshiD between the input signal end the outDut contacts are shown in Table 2. Check this relationship during the test. Table 2 (5) If no Droblea is found when the Dower source is aDDlied. turn the rain circuit switch ...

  • Toshiba RC803A-HP1 - page 16

    TOSHIBA 6F9E0090 (b) When undercurrent or disconnection is detected At the sale time the lain circuit switch is turned OH, the starting current and rated current flows, and the relay is picked U P . If current drODS below the undercurrent set point, the undercurrent State is detected and the relay drops out. (Refer to Fig. 5) Caution: If input sign ...

  • Toshiba RC803A-HP1 - page 17

    TOSHIBA 6F9E0090 (6) If the relay does not operate in the above test, check if the current setting is correct or if the ingut signal is above the set detection value. If the ingut signal is correct, check the operation of the relay by gradually reducing the setting of the current adjusting knob. If the relay still does not ooerate. it is defective. ...

  • Toshiba RC803A-HP1 - page 18

    - TOSHIBA 6F9E0090 8. Cover Reroval To adjust the current and time settings the cover must be raaoved. Reaove the cover by amlYing a force in the direction of the arrow as shown below. To replace the cover, place the projection of the cover in the slip out oreventive hole and then insert the bosses of the cover into the 2 holes at the uooer left an ...

  • Toshiba RC803A-HP1 - page 19

    - TOSHIBA CORPORATION ...

メーカー Toshiba カテゴリー Power Supply

Toshiba RC803A-HP1のメーカーから受け取ることができるドキュメントは、いくつかのグループに分けられます。その一部は次の通りです:
- #BRANDの図面#
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