• china meter
  • Energy meter,water meter,wall switch

Name:Three-phase Prepayment Kwh Meter

  • Three-phase Prepayment Kwh Meter
    Product Description:
    Three-phase Prepayment Electronic Watt hour Meter for Active Energy, briefly named as three-phase IC card watt hour meter, is used for measuring three-phase AC active energy with rated frequency of 50Hz to realize using electrical energy after prepayment. The product adopts advanced micro-electronic technique to collect, process and memorize data Its technical performances are conform to the requirements of national standards of IEC 61036, GB/T8382-1996. It has advantages of small size light weight and high reliability.

    Operating principle
    The meter consists of four main function elements: The first is electrical energy measurement element, the second is control system based on microcomputer, the third is CPU card element, and the fourth is the power supply. The element of electrical energy measurement adopts special large integrated circuit that produces a series of pulse to represent electrical energy consumption and transmits them to micro computer for measurement. The measurement data is saved in the CPU card. The micro computer transmits data to IC card by interface of per-paid IC card to fulfill various functions. The power supply adopts three-phase circuit that works normally in the conditions of one or two phases are missing.
     
    Specification
    Mode
    Accuracy class
    Reference  Voltage
    Basic Current(A)
    DTS3533-Ⅰ
    (Direct connected)
    Class 0.5
    3×57.7/100V
    3×220/380V
    3×230/400V
    3×1.5(6)A
    Class1
    DTSY3533
    (Transformer operated)
    Class1
    3×220/380V
    3×230/400V
    3×5(30).3×10(40),3×20(80)
     
    Technical specificationMeter constant:
    Model DTSY 1.5(6)A: 1600imp/kW•h;
    Model DTSY  10(40)A: 400imp/kW•h; 
     
    Basic error
    Load current
    Power factor
    basic error (%)
    Class 0.5
    Class 1.0
    0.05lb
    1.0
    ±1.0
    ±1.5
    0.1lb~lmax
    1.0
    ±0.5
    ±1.0
    0.1lb
    0.5L   0.8C
    ±1.0
    ±1.5
    0.21lb~lmax
    0.5L   0.8C
    ±0.6
    ±1.0
     
    Annual mean
    ≤75%
    For 30 days, these  days being spread in a natural manner over one year
    95%
    Occasionally on other days
    85%
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