SB861A type precision AC/DC power supplyDetailed product description：

SB861A precision AC/DC power supply

Overview
The SB861A precision AC/DC power supply consists of a combination of YS106B single-phase programmable power supply, YJ85A high stability DC stabilizer, YJ86A-2 high stability DC stabilizer, and a cabinet in a drawer style. This precision power supply has adjustable continuous output of high voltage and high current for both AC and DC, without the need for external YJ5 and YJ6 voltage regulators. It is compact in structure, easy to move, has high power, strong load capacity, low distortion, and good stability. Especially, the AC output is adjusted by a computer-controlled keyboard, with small phase error and convenient operation. According to the stability indicators of this power supply, appropriate AC/DC standard meters can be selected and used as precision working power sources for measuring instruments such as AC/DC voltage, current, power, power factor, frequency, phase, etc. below level 0.1 in various provincial and municipal metrology testing institutes, power systems, electrical metrology of large and medium-sized enterprises, electrician laboratories, and instrument production plants.

Technical specifications of SB861A precision AC/DC power supply

Product Model technical indicators	SB861A precision AC/DC power supply
	YS106B phase programmable power supply	YJ85A type stable DC voltage regulator	YJ86A-2 High Stability DC Stable Current Source
Output current And stability	(1，2.5，5，10，20A)60VA <0.02%	300mA	0-20A <0.005%
output voltage And stability	(75,100,150,300,600V)60VA <0.02%	0-600V or dual 300V < 0.005%	20A/3V10A/6V5A/12V1A/30V
Regulating fineness	Phase 0.1 * 1 * 10 * Frequency 0.01Hz 0.1Hz 1Hz Current Voltage 0.1% 1% 10%	Voltage 0.01%	Current 0.01%
Frequency range And stability	45Hz-65Hz < 0.01%/3min
Phase range And stability	0-360* <0.01*/3min
Waveform distortion degree	Voltage<0.2%, current<0.3% (pure resistance)
Time drift	<0.02%V/2min<0.02%I/2min	< 0.005%V/10min	< 0.005%V/10min
Ripple voltage		<2mv (effective value)	<1mv (effective value)
Weight (kg)	twenty-eight	twenty-eight	eighteen
Dimensions L * b * h (mm)	480*480*150	480*480*160	480*480*160
	560*580*1250

3、 Completeness
The SB861A precision AC/DC power supply or YS106B single-phase programmable power supply, when paired with our PF108 digital AC multifunctional meter (which automatically converts voltage and current ranges, is versatile, easy to operate, has good stability, and comes with a computer interface. It has an accuracy level of 0.1 and a range of 650V, 20A), can simultaneously measure seven electrical parameters including AC voltage, current, power factor, frequency, phase, and DC voltage.
SB861A precision AC/DC power supply or YS106B single-phase program-controlled power supply with PS74 single-phase standard power meter produced by our factory (this meter adopts microcomputer intelligent digital control. It has high accuracy, good linearity, and high degree of automation. The accuracy is 0.05 level, and the range is 220V, 5A). Suitable for the calibration of single-phase energy meters and power meters.
SB861A precision AC/DC power supply is equipped with our factory's XF1b AC/DC precision meter calibration device (using traditional electrical methods, with high measurement accuracy. AC 0.05 level, DC 0.03 level, AC output 600V, 20A). DC output 600V, 20A). It can verify specialized instruments such as precision AC/DC ammeters, voltmeters, power meters, power factor meters, frequency meters, phase meters, etc. If you need to verify the audio power meter, you can also change the YS106B single-phase programmable power supply to the YS37 audio power supply (this high-precision audio AC power supply can be used as a matching power supply for precision meter verification devices, or can provide a high stability testing power supply separately for other meters, outputting 1000V, 20A, 0.02%/3min, frequency 45Hz~10kHz).