Application
This three phase energy meter test bench is used for grid corporation of measurement and test center, management department of power supply bureau, national energy measurement of testing authorities, and also used to test each kind of single/three phase kWh meter of industries and mining enterprises as well as electric meter manufacturers. Meanwhile, the calibrator also can be used as one high standard power source.
Features & Functions
Able to test basic error, shunt running, start, standard error automatically and manually in single-step of single/three phase, according to relative regulation of kWh meter.
Able to do change test caused by voltage influence, frequency influence and harmonic influence.
Output of power source is speedy and stable, AC maximum output of each phase can reach 100A in maximum.
Voltage, current and phase position of each phase can be adjusted in split-phase, improving the flexibility of power source.
Frequency of each impulse input port can reach 40Hz.
LCD in color and big screen, complete English menu, simple and convenient operation, commonly used functions and current basic load point can be controlled in one button.
Each meter position can provide one standard, dependent RS485 port, and able to do multi-function test such as communication test.
Each meter position can provide six-pulse input port, able to connect active power pulse, reactive power pulse, clock pulse, finishing the whole test process automatically, solving the problems of changing pulse line.
Impulse port of each meter position, external polarity can be set randomly, able to adapt kWh meter of impulse cascade and common-anode.
Technical Specification
AC Voltage Output & Measurement
Range: 57.7V, 100V, 220V, 380V;
Adjustment range: (0-120)%RG
Adjustment fineness: 0.01%RG, 0.1%RG, 1%RG, 10%RG as optional.
Stability: <0.05%/120s.
Distortion: ≤0.5% (Non-capacitive load);
Output load: each phase 25VA;
Measuring accuracy: 0.05%RG;
(RG means range, the same as below)
AC Current Output & Measurement
Range: 200mA, 1A, 5A, 20A, 100A;
Adjustment range: (0-120)%RG
Adjustment fineness: 0.01%RG, 0.1%RG, 1%RG, 10%RG as optional.
Stability: <0.05%/120s.
Distortion: ≤0.5% (Non-capacitive load);
Output load: 45VA;
Accuracy: 0.05%RG
Power Output & Measurement
Active power output stability: <0.05%RG/120s;
Reactive power output stability: <0.05%RG/120s;
Active power measuring accuracy: 0.05%RG;
Reactive power measuring accuracy: 0.1%RG.
Phase Output & Measurement
Output adjustment range: 0-359.99;
Output adjustment fineness:10, 1, 0.1, 0.01 as optional.
Resolution: 0.001
Measurement accuracy: 0.0005
Frequency Output
Adjustment range: 45Hz-69Hz;
Output adjustment fineness: 5Hz, 1Hz, 0.1Hz, 0.01Hz as optional.
Resolution:0.001Hz;
Accuracy:0.005Hz;
Voltage /Current/Harmonic Setting
Harmonic number:2-31times;
Harmonic content:0-40%;
Harmonic phase:0-359.99;
Harmonic setting accuracy:(10%±0.1%)RD
RD means the settled harmonic content, harmonic can be a single output, also multiple output.
Power Energy Measurement Error
Active power energy: 0.05%RG;
Reactive power energy: 0.1%RG;
Power Pulse Output
Power pulse type: support active pulse and reactive pulse
Active power pulse output is 5V, output is 10mA.
Power Pulse Input
Energy pulse type: support active and reactive pulse, the highest frequency power pulse input is 180K.
Dimension
500mmx600mmx175mm;
Weight: About 27KG;
Power Supply: One Phase AC 180~265V , frequency 50/60Hz;
