タイトルまたは説明

JW－***1CT
General
    The verification platform consists of a programmable three-phase calibration source, a DC standard source, a 0.*5 grade three-phase multi-function standard meter, and a computer with a calibration and management software. The technical specifications of the equipment conform to the relevant standards and verification regulations of the state and the industry. The utility model has the advantages of stable output, safe and reliable operation and convenient use; the standard meter is accurate and stable, has complete functions and is used for multiple purposes. For the test meter with corresponding output information, the verification system of source table and computer can realize automatic verification, and the verification report according with the regulation requirement is given.

 Main functions & features

1． The device can calibrate 0.2 level (0.1 level) and following AC meters, DC meters, transmitters, AC sampling meters, electric energy meters, harmonic measuring instruments, etc..
2．The device is equipped with a standard meter with a high precision digital / frequency converter (DFC), and the maximum frequency of the standard pulse output is 2MHz. By computer controling, the automatic verification of the electric energy meter can be realized.
3．The following technical indexes of the equipment can be used for self inspection (the standard meter is equipped with valid certificate):
A.  The stability of voltage, current, single-phase power and three-phase power output by the device;
B.  Distortion of output voltage and current;
C.  Symmetry of three-phase voltage, symmetry of three-phase current;
D.  The magnetic induction intensity (option) where the position of the checked meter is setted;.
 
 
Main Technique specification
AC output
    ·Voltage output range  (V)：*0、*0、*0、**0、**0、**0、**0ï¼›
    ·Current output range  (A)：0.1、0.*5 、0.5、1、2.5、5、*0、*5、*0、**0ï¼›
    ·Regulating range          0～**0%(except  **0V and **0A)ï¼›
    ·Resolution               0.**5%ï¼›
    ·Stability  0f  Voltage、Current、Active power and  Electric energy  ≤0.*1%/*0s（p-p）；
    ·Power of  V output        *0VAï¼›
    ·Power of  I output        **0VAï¼›
    ·Distortion factor         ≤0.3%。
 Fundamental phase shift
    ·With UA as reference, UB, UC and IA, IB and IC can be shifted to 0.*0°ï½ž**9.*9° for UAï¼› 　　
    ·The phase shift of the current to the same phase voltage is 0.*0°ï½ž**9.*9°,The phase to phase adjustment of amplitude and phase can output the required three-phase unbalanced output;
    ·Accuracy      ±0.2°ã€‚
 Frequency output  
   ·Frequency Range　　 　*5～*5Hzï¼›
  　 ·Resolution  　　　　　0.**1Hzï¼›
  　 ·Accuracy         0.*1Hz。
·Harmonic  output   
·Harmonic  output    2～*1 order，
the number of harmonics contained at the same time  0～*0ï¼›   
   ·Harmonic  amplitude   the peak to peak of the total harmonic , should not be greater than *0% of the fundamental rated peak to peak value indicated (i.e. voltage, current range) . at the same time, including the fundamental wave distortion, peak value should be less than **5% of Fundamental ratings expressed by peak to peak valuesï¼›
  ·The phase shift range of each harmonic to the fundamental wave
    0～**0°ã€‚
 Symmetry of three phase angles
   ·Between three phase four wire voltages    **0°±0.2°ï¼›
   ·Between three phase three wire voltages    UAB lags  *0±0.2° to UCBï¼›
   ·Current to the same phase voltage         ±0.2°ã€‚
DC output
  ·Voltage output range（Including auxiliary range）
      mV：*5、*0、*0、*5、**0、**0、**0 、**0、**0ï¼›                     V：0.*5、0.2、0.*5、0.3、0.*5、0.5、0.6、0.*5、1、1.5、2、2.5、3、4.5、
5、7.5、*0、*5、*0、*5、*0、*5、*0、*0、*5、**0、**0、**0、**0、**0、**0、**0、**0、***0；
  ·Current output range（Including auxiliary range）
      μA： 5、7.5、*0、*5、*0、*5、*0、*0、*5、**0、**0、**0、**0、**0ï¼›
      mA： 0.5、0.*5 、1、1.5、2、2.5、3、5、7.5、*0、*5、*0、*5、*0ï¼›
       A：0.*5、0.**5、0.1、0.*5、0.2、0.*5、0.3、0.5、0.*5、1、1.5、2、2.5、
         3、5、7.5、*0、*5、*0、*5、*0ï¼›
    ·Power of output          Max.*0Wï¼›
    ·Regulating range of V/I    0～**0% (except ***0V、*0A）；　　
    ·Resolution               0.**2%ï¼›
    ·Accuracy of V/I           0.*5（0.*2）%ï¼›
    ·Stability of V/I   full range output value changes in 1 minutes ≤±0.*1% RGï¼›errors caused by ripple and noise voltage         ≤±0.*1% RGï¼›errors caused by load from no-load to full load  ≤±0.*1% RG。
the Accuracy of the device       0.*5（0.*3）。
the Accuracy of measuring Voltage、Current、power、energy meter       0.*5%（0.*3%）。
the Accuracy of measuring reactive power、reactive energy meter          0.1%。
the Accuracy of phase angle            ±0.*5°ã€‚
the Accuracy of power factor           ±0.***2。
Voltage Supply                 Single phase  **0V±*0%，*0Hz±5%。
Operating environment         Ambient temperature  *0℃±*0℃，
Relative humidity               ≤*5%RH。
Table size and weight (kg)       ***0×***0mmï¼›**5kg。