YS50D type programmable three-phase intermediate frequency power supplyDetailed product description：

One Overview
The YS50D programmable three-phase intermediate frequency power supply consists of a digital signal source and a power amplifier. It has the characteristics of wide range, complete functions, intuitive display, easy operation, long-term stable technical indicators, and long service life. At the same time, a good protection system is provided internally, including measures such as voltage output short circuit, current output open circuit, and over temperature protection, ensuring safe and reliable use. This power supply is a specialized power supply used for verifying AC voltmeters, ammeters, phase meters, power factor meters, single-phase and three-phase active power meters, reactive power meters, AC power quantity transmitters, power load transmitters, power relays, and power frequency and intermediate frequency indicator meters. Therefore, it is widely used in various measurement and testing departments, central laboratories, industrial and mining enterprises, colleges and universities, and other units.

II Technical specifications of YS50D programmable three-phase intermediate frequency power supply
Frequency range: 40.00HZ-450.0HZ
Frequency indication error: 5 × 10-4
Rated output voltage range (V): 75-150-220-380-450-600-750
Rated output current range (A): 0.1-0.5-1.0-2.5-5.0-10.0-20.0
Maximum output amplitude: 120% of rated range
Amplifier output amplitude instability: no more than 0.01% change every 2 minutes
The power stability of each phase shall not exceed 0.01% per 2 minutes (COS φ=1)
Maximum output power per phase of voltage source: 20VA
Maximum output power per phase of current source: 30VA
Amplifier amplitude output adjustment fineness: 2.0 × 10-5
Output waveform distortion (voltage, current): not greater than 0.3%
Phase adjustment range: 0-360 ° -0 (with lead and lag indication)
Phase symmetry: 120 °± 0.5 °
Frequency and phase adjustment fineness: 40.00H z-99.99H z 0.01H z 0.1 ° 100.0H z-450.0H z 0.1H z 0.1 °
Phase instability: no more than 0.3 ° change every 2 minutes
Synchronous function of mains power (eliminating the impact of beat frequency): Yes
Load adjustment rate: When the load changes by ± 10%, the output amplitude changes by less than 0.05%
Voltage regulation rate: When the power supply voltage changes by ± 10%, the output amplitude change is less than 0.02%
Power supply: 220V ± 10%, 50Hz ± 1Hz (ensuring stable voltage of 220V ± 2%)
Power consumption: less than 500W
Operating environment temperature: 5-40 ℃ (ensuring a stability temperature of 20 ± 2 ℃)
Relative temperature and humidity 20-80%
Interface: RS-232C

Dimensions: Width 480 x Depth 480 x Height 180 MM 3 (signal source+A-phase amplifier)
Width 480 x Depth 480 x Height 133 MM 3 (B, C phase amplifiers)
Weight: 15Kg (signal source+A-phase amplifier)+15Kg (B-phase and C-phase amplifiers)