It is designed to output three separate voltage and current signals, making it suitable for testing both three-phase and single-phase energy meters.
The power source is highly accurate and stable, and includes an RS232 interface for automatic operation.
The keyboard for manual operation (optional)
allows programming of the output amplitude and degree for the 2^nd-41^stharmonic.
The material is made of aluminum alloy, which is both lightweight and strong, preventing corrosion.
The device has overload protection, short voltage circuit protection, and open current circuit protection.
The control software is simple and easy to operate.
The power source conforms to EU health and safety standards and has CE certificates.

Technical Parameters:

Model	YCS-103-250	YCS-103-600	YCS-103-1200	YCS-103-2500
Voltage
Test voltage output (Phase-Neutral)	3×(24V – 480V) or customized
Power of the voltage output	3×100VA	3×250VA	3×500VA	3×1000VA
Resolution	Better than 0.01% of full scale value of range
Setting accuracy	Better than 0.05% at the final range value
Stability	Better than 0.005%/h (integration time 150 s)
Load regulation from 0-max. load	< 0.01%
Distortion factor	< 0.3% for linear resistance load
Harmonics	2^nd – 41^st free programmable
Current
Test current output	3×(0.3mA – 200A)
Power of the current output	3×150VA	3×350VA	3×750VA	3×1500VA
Resolution	Better than 0.01% of full scale value of range
Setting accuracy	Better than 0.05% at the final range value
Stability	Better than 0.005%/h (integration time 150 s)
Load regulation from 0-max. load	< 0.01%
Distortion factor	< 0.3% for linear resistance load
Harmonics	2^nd – 41^st free programmable
Phase angle
Range	0 -- 360°
Resolution	0.01°
Setting accuracy	0.1°
Frequency
Range	40Hz – 70Hz
Resolution	0.01Hz

Voltage Supply	3×220/380V±10% or customized 50/60Hz±2Hz
Ambient temperature	-10°C -- +40°C
Relative humidity	35% -- 85%

Applications:

1. national utility companies

2. Governmental bureaus of metrology

3. large energy meter manufacturers

High-quality product.
High power output (maximum voltage power: 2000VA, current power: 3000VA).
The power stability is extremely high, ranging from 20 to 50 ppm.
Additionally, the distortion factor for linear resistance load is less than 0.3%.