• china meter
  • Professional Manufacturer Of Electric meter,Electronic meter,kwh meter,Prepaid meter.

3 phase Electric meter

    Name:DTSY450 three phase prepaid meter

  • 3 phase Electric meter

  • 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)
    DTSY450-Ⅰ
    (Direct connected)

    		 Class 0.5

    		 3×57.7/100V
    3×220/380V
    3×230/400V

    		 3×1.5(6)A

    Class1
    DTSY450-Ⅱ
    (Transformer operated)

    		 Class1

    		 3×220/380V
    3×230/400V

    		 3×5(30).3×10(40),3×20(80)

  • Technical specification
  • Meter constant:
  • Model DTSY450-l 1.5(6)A: 1600imp/kW•h;
  • Model DTSY450-ll 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%
  • Installation and Connections
  • electric meter
  • Suggest installing the meter indoors and the base for fixing the meter shall be fixed on the solid and fore-resistance wall.
  • The upper end of the meter has a hole of pothook bolt, it is fixing by M4 pothook bolt. There are two fixing hole on the bottom part of the meter for fixing on the connection board by bolts of M4×10 and M4×12.The base for fixing the meter shall be fixed on the solid and fire-resistance wall. The outline of the meter is shown in Figure 1.
  • The meter shall be connected according to the connection diagram imprinted in the terminal Cover.
  • Connection for power supply terminals
  • electric meter
  • Transport and Storage
  • The meter shall be handled carefully to avoid severe shock during transport, It should be transported and stored according to the requirements specified in the national standard GB/T15464-1995 "General Technical Requirements for Packaging of Instruments and Apparatus".
  • The meter shall be stored on the shelves with its original package, the stacking height shall not more than five layers. Keep the storage place clean. The storage temperature shall be within 0~40 and the relative humidity is less than 85%.
  • There's no injurant in the atmosphere which result in corrosion.Identification No. of the meter.
  • The ID No. of the meter is the same as the number stated in the name plate.
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