kwh meter test bench

The bench accord with the standard of IEC 60736:1982 testing equipment for electrical energy meter, IEC 62053  

Accuracy class: 0.2 class (close-link calibration, the range of current: 0.25A-120A)

             0.05/0.1 class (ordinary calibration)

Standard power testing equipment

       HC 3100 three phase multi-functions precision power reference meter

       Accuracy class:0.05/0.1 class

Isolated current transformer equipment:

       PTC-9503B insulate current inductance

       Accuracy class: 0.1 (COSφ=0.5C-1-0.5L, 0.25-120A)

       Primary current: 3×0.25-120A secondary current: 3×0.25-120A

       Output power: 30VA (MAX, 100A)

Voltage amplifier:

Output voltage range: 30-400V(phase-neutral);

                      50-600V(phase-phase)

Output maximum power: 800VA

  Range                           output power

57.7V                             800VA

100V                              800VA

220V                              800VA

380V                              800VA

Resolution: 0.01%;

Stability:better than 0.05%/3 min(time base 5S);

Distortion factor: < 0.5% at linear load;

Frequency range: 45Hz~65Hz;

Power efficiency: more than 85%;

Ambient temperature:10~50

  Electronic overload and short-circuit protection.

Current amplifier:

Output current: range: 1mA~120A;

Output maximum power: 1500VA

Resolution: 0.01%;

Stability:better than 0.05%/3 min(time base 5S);

Distortion factor: < 0.5% at linear load;

Frequency range: 45Hz~65Hz;

Power efficiency: greater than 85%;

Ambient temperature:10~50

  Electronic overload protection and security for open current circuit.

Phase Angle: 0°~360° , resolution of phase angle setting: 0.1°;

Output frequency range: 45Hz~65Hz; resolution: 0.01Hz

Harmonic wave output: 2-21 sub-harmonic wave     contents≤40%

                   3, 5, 7 sub-harmonic wave coupling, total content≤40%

                       Phase angle control (odd sub-harmonic wave)

                       Wave group control (sub-harmonic wave)

Output stability of power: <0.05% (180S)

Numbers of calibrated energy meter: 16 (6/8/12/16/20/24/32/40 on requested)

Input power: 3×220V/380V (Y) 15%, 50/60Hz; Max. power consumption: 6000VA

kwh meter test bench