Single Phase Power Meter Test Equipment

Single phase power meter test equipment 1. Brief Introduction: KP-S10XXX-A single phase energy auto-calibration system is a new generation, high precision energy meter calibration equipment. It uses the advanced technology and electronic components available in 90 decade . The test bench can be operated from embedded keyboard or operated from PC software. 2.Advantages: h. DDS technology signal generator: The signal generator adopts digital sine wave composing technology. The signal generator can trace the voltage phase and supply a dummy load to the tested meter by outputting adjustable current with different phase; i. High efficiency D-Class current amplifier and voltage amplifier: The equipment use PWM power amplifier(or we called D-Class amplifier), which is high efficiency (>85%) and very low heat consumption. The amplifier has protection circuit itself, it can avoid damage due to wrong connection or other manual operations. Current amplifier and shifter can output any current from 0.001A to 100A; Voltage amplifier can output any voltage from 100V to 300V; j. DCS framework designed error calculator system. The error calculator system is designed as DCS framework, every meter position has one isolated error calculator, error data is transferred from RS485 Bus, PC can receive every meters error data and then displayed it on the screen, the error calculator can receive signal which due to TTL / OC or Optical head output. k. Can be controlled from keyboard or software. The equipment has operated keyboard itself, the equipment can be operated form software and also it can be operated from keyboard. Without PC you can also test meters error. KP-S10xxx-A single phase energy meter testbench 13 3. Technical specification Power supply: 220V+10%, 50Hz/60Hz Maximum power consumption: 1000VA (reference for 24 meter positions) Phantom load power source Technical specification Voltage output: 1x100V (AC) 1x 300V (AC); Resolving power: 0.01% of current range Current output: 0.001A (AC) 100A (AC) Resolving power: 0.01% of current range (min 0.0001A) Phase shift range: 0-360° Resolving power: 0.1° Frequency: 45Hz 65Hz Resolving power: 0.01Hz Waveform distortion (sine wave output): voltage < 0.5% current < 0.5% Stability of power source (sine wave output): < 0.1% (180s) Load can be resistance / inductor or capacitance(<4uF) Output waveform: sine waveform Output capacity: Voltage source: 300VA-1500VA(dependent on meter positions) Current source: 300VA-2500VA(dependent on meter positions) KP-S10xxx-A single phase energy meter testbench 14 Reference meter Technical specification Type: HY5101 single phase energy meter Power supply: 220V +10%, 50Hz/60Hz Maximum power consumption: 15VA Measurement range: Voltage: 100V (AC)-300V (AC) Current: 0.5A (AC)-6.0 (AC) Accuracy: 0.1 / 0.05 (PF>0.5) Warming up: < 5 minutes Working environment: Temperature: + 5 + 40 Relative humidity<85% Dimensions: 220mm X 340mm X 140mm Weight: < 3.5kg Error Calculator Technical specification Impulse of tested meter could be: TTL / OC / Optical head Max. frequency of impulse could be: 200Hz Error display range: ±0.001% - ±99.99% 4. About software: a. Error test; b. Starting UP test; c. Creep test; d. Deviation test; e. Voltage variation Influence test; 15 f. Frequency variation Influence test; g. 24H error variation; h. Report output; i. Error data to Excel file;