Product Introduction
The UHV-930 three-phase programmable precision test power supply produced by huatan power is a new generation of high-precision standard power source based on 1.2g MAC DSP, large-scale FPGA, high-speed and high-precision DA and high-fidelity power amplifier.It is applicable to power departments and enterprises that need to measure and inspect high-precision standard signal source for electric measurement, thermal engineering, telecontrol and dispatching of power system, as well as other occasions that need high-precision standard signal source for measurement and inspection.
The UHV-930 can output high-precision voltage and current with adjustable frequency, phase and amplitude of power frequency (40Hz ~ 65Hz). It is a very high-precision adjustable voltage and current standard source.
The UHV-930 can output a very pure sinusoidal voltage current with distortion of no more than 0.1%.The voltage and current output of the UHV-930 has a very high output stability, typically 0.03% RD.Therefore, it is very suitable for the work place requiring high precision inspection and calibration, such as the measurement department for the detection of various voltage, current, power and other electrical parameters meter.
Product Characteristics
1. Pure Sinusoidal Output: Delivers sinusoidal power signals with distortion as low as 0.1% (typical value).
2. Harmonic Output Capability: Supports superposition of harmonic outputs onto the fundamental waveform.
3. Wide Adjustable Frequency Range: Frequency output is adjustable from 40 Hz to 65 Hz, with a resolution of 0.005 Hz and accuracy of 0.005 Hz.
4. Independent Phase Frequency Reference: Phase A and Phase B share one frequency reference, while Phase C has a separate frequency reference, allowing for independent phase conversion.
5. Wide Phase Adjustment Range: Phase is adjustable from 0° to 360°, enabling simulation of various power supply conditions, including reverse power scenarios.
6. Strong Load Capacity: Capable of driving capacitive, inductive, resistive, or composite loads, with a load regulation rate better than 0.03% RG.
7. Excellent Temperature Stability: Core components are military-grade products with a temperature coefficient as low as 1 ppm, ensuring output accuracy even in outdoor temperature environments.
8. Advanced Processor Architecture: Utilizes a 32-bit MCU + DSP processor, offering powerful performance and operational flexibility.
9. High Waveform Resolution: Employs waveform kneading technology with up to 50,000 points per cycle at power frequency, ensuring precise waveform output without requiring additional smoothing filtering. This enables accurate harmonic output and excellent harmonic distortion performance.
10. PC Connectivity: Easily connects to a PC via RS232 interface, supporting expanded functionality.
11. Comprehensive Protection: Features complete overcurrent, overvoltage, overtemperature, short circuit, open circuit, and overload protection.
12. Hardware PID Control: Provides extremely fast response; load variations cause no output fluctuation.
13. User-Friendly Display: Equipped with a 320×240 LCD with a Chinese interface for easy operation.
14. Open Communication Protocol: Supports secondary development, enabling applications such as automated factory verification for RTU/FTU, power management terminals, and public transformer metering terminals.
15. Pure Capacitive Load Capability: Capable of driving pure capacitive loads.
16. Electricity Meter Testing: Can be used in conjunction with PC software for electricity meter verification.
Technical parameters
| Ac output | Adjust the fineness of | 0.05%RG |
| The accuracy of | Better than ±0.1%RG | |
| stability | Better than ±0.03%RG/1min | |
| The distortion degree of | Greater than 0.1%(non-capacitive load) | |
| The output power | Rated at 15VA per phase | |
| Full load adjustment rate | Less than ±0.03%RG | |
| Full load adjustment time | Less than1mS | |
| Output range | 0V～420V | |
| Gear set | 0V～140V 、140V～280V 、280V～420V ，Automatic gear switching | |
| Temperature drift | ±15PPM/℃ | |
| Long-term stability | ±100PPM/years | |
| Ac current output | Adjust the fineness of | 0.05%RG |
| The accuracy of | Better than ±0.1%RG | |
| stability | Better than ±0.03%RG/1min | |
| The distortion degree of | Greater than 0.1%(non-capacitive load) | |
| The output power | Rated at 15VA per phase | |
| Full load adjustment rate | Less than ±0.03%RG | |
| Full load adjustment time | Less than 1ms | |
| Output range | 0A、1mA～10A(20A) | |
| Gear set | 0A～0.2A、0.2A～1A、1A～5A、5A～10A，Automatic gear switching | |
| Can be customized | 0～1A、1A～5A、5A～10A、10A～20A，Automatic gear switching | |
| Temperature drift | ±15PPM/℃ | |
| Long-term stability | ±100PPM/years | |
| The power output | The accuracy of | Better than 0.1%RG |
| stability | Better than 0.03%/1min | |
| phase | The adjusting range is | 0 ~ 359.99 degrees |
| The resolution of the | 0.02 degrees | |
| The accuracy of | ±0.05 degrees | |
| frequency | The adjusting range is | 40Hz～65Hz |
| The resolution of the | 0.005Hz | |
| The accuracy of | ±0.005Hz | |
| Temperature drift | ±1PPM/℃ | |
| Long-term stability | ±4PPM/years | |
| Power factor | The adjusting range is | -1～0～+1 |
| The resolution of the | 0.05% | |
| The accuracy of | 0.1% | |
| Working power supply | 220 V，AC50Hz ±5% | |
| Harmonic output | The UHV-930 three-phase programmable precision test power supply can accurately output 2 ~ 22 harmonics,which can be combined and superimposed at any time. However, the sum of the total harmonic content in the output harmonic should not exceed the limit listed in the table below. | |
The carrying capacity of the UHV-930 will be reduced by half during harmonic output. For reliable and accurate harmonic output, please ensure that the load does not exceed one half of the rated value.Especially the voltage output, because the voltage output is often used as the power supply of the device under test, the power consumption on it will be larger. | ||
| Overall dimensions | 480*330*680mm3 | |
| The weight of the | 31.6kg | |
