Product Introduction
The UHV-930 three-phase programmable precision test power supply produced by Wuhan UHV 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 functions
1. High-precision AC voltage output
The device provides high-precision AC voltage output, allowing precise setting and adjustment of output voltage over a wide range, with automatic range switching. The output signal is stable and highly accurate, suitable for applications such as power metering, instrument calibration, and laboratory testing that require standard AC voltage signals with high precision.
2. High-precision AC current output
Supports high-precision AC current output with multiple automatic range switching capabilities, allowing selection of the appropriate output range based on different testing requirements. The stable and reliable current output can provide standard test signals for energy meters, current measuring instruments, and other electrical equipment, improving the accuracy of testing and calibration results.
3. Precise frequency adjustment
The output frequency supports precise setting, covering common power frequency test ranges. Through high-resolution frequency control, it can simulate power signals under different frequency conditions, providing a stable standard signal for power instrument testing, metrological calibration, and electrical equipment performance testing.
4. Phase and power factor adjustment
The device supports precise adjustment of phase angle and power factor, allowing flexible simulation of different voltage-current phase relationships and load conditions. By setting phase and power factor, it can meet testing requirements related to active power, reactive power, and energy metering.
5. 2nd to 22nd harmonic output
Supports output of 2nd to 22nd harmonic signals, and can combine harmonics with the fundamental signal to provide more complex test conditions for energy meters and electrical measurement equipment. This function is suitable for harmonic response, metering accuracy, and power quality related testing, more realistically simulating non-ideal signal conditions in actual power grids.
6. Energy meter calibration and automated testing
The device supports communication with a host computer via RS232 interface for remote control and data exchange. With corresponding test software, it can be used for energy meter verification, instrument calibration, and automated test systems, effectively reducing manual operations and improving test efficiency and repeatability. It is suitable for laboratories, metrology organizations, and production testing applications.
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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.
Parámetros técnicos
| 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 | |
| Tasa de ajuste de carga completa | Less than ±0.03%RG | |
| Tiempo de ajuste de carga completa | Menos de 1mS | |
| Rango de salida | 0V～420V | |
| Gear set | 0V～140V 、140V～280V 、280V～420V ，Automatic gear switching | |
| Deriva de temperatura | ±15PPM/℃ | |
| Estabilidad a largo plazo | ±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 | |
| Tasa de ajuste de carga completa | Less than ±0.03%RG | |
| Tiempo de ajuste de carga completa | Less than 1ms | |
| Rango de salida | 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 | |
| Deriva de temperatura | ±15PPM/℃ | |
| Estabilidad a largo plazo | ±100PPM/years | |
| The power output | The accuracy of | Better than 0.1%RG |
| stability | Mejor que 0,03%/1min | |
| fase | The adjusting range is | 0 ~ 359.99 degrees |
| La resolución del | 0,02 grados | |
| The accuracy of | ±0.05 degrees | |
| frecuencia | The adjusting range is | 40Hz～65Hz |
| La resolución del | 0,005Hz | |
| The accuracy of | ±0.005Hz | |
| Deriva de temperatura | ±1PPM/℃ | |
| Estabilidad a largo plazo | ±4PPM/years | |
| Power factor | The adjusting range is | -1～0～+1 |
| La resolución del | 0.05% | |
| The accuracy of | 0.1% | |
| Fuente de alimentación de trabajo | 220 V，AC50Hz ±5% | |
| Salida armónica | 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. | ||
| Dimensiones totales | 480*330*680mm3 | |
| The weight of the | 31,6 kilos | |
Application Scenarios
1. Energy meter verification and calibration
Provides high-precision standard voltage, current, frequency, phase, and power factor signals for single-phase and three-phase energy meters, used for energy metering accuracy testing and calibration.
2. Power metering laboratories
Used as a standard AC signal source in laboratories for metrological testing and performance verification of power measuring instruments such as voltmeters, ammeters, wattmeters, and frequency meters.
3. Power instrument testing
Provides stable, adjustable standard signals for various electrical measuring instruments to test measurement accuracy under different voltage, current, frequency, and power factor conditions.
4. Power quality and harmonic testing
Utilizes the 2nd to 22nd harmonic output function to simulate power signals with harmonics, used for power quality analysis, harmonic response testing, and performance verification of related instruments.
5. Power equipment R&D and production testing
During the development and production of power instruments, metering equipment, and related electronic products, provides standard test signals for functional testing, performance verification, and factory inspection.
6. Automated test systems
Connects to computers or automated test platforms via RS232 communication interface for remote control and automated testing, suitable for laboratory automated testing, production line testing, and batch calibration.
7. Power terminal equipment testing
Can be used for signal simulation and automated verification of RTUs, FTUs, power management terminals, metering terminals, and other equipment, helping to verify equipment performance under different electrical operating conditions.
Frequently Asked Questions
Q: What is theThree-phase Program-controlled Power Supply mainly used for?
A: The precision programmable power supply is a high-precision three-phase programmable AC power source, mainly used for energy meter verification, metrological calibration, power instrument testing, power quality testing, and automated test systems.
Q: Can the Three-phase Program-controlled Power Supply adjust multiple output parameters simultaneously?
A: Yes. The device can set and adjust parameters such as voltage, current, frequency, phase, and power factor according to testing requirements, making it convenient to simulate different electrical operating conditions and improving testing flexibility.
Q: Can the Three-phase Program-controlled Power Supply be used for production line testing?
A: Yes. The device supports programmable operation and host computer communication, and can be used together with automated testing equipment for fast, repetitive production testing of power instruments, energy meters, and related electrical products.
Wuhan UHV Power Technology Co., Ltd. has been specializing in the manufacturing of high-voltage power testing equipment for over 10 years. As a factory-direct manufacturer, we have strong production capabilities and can offer competitive factory prices without compromising product quality. We provide professional technical support and customized solutions for customers with different testing requirements.
Factory Direct • Competitive Price • Professional Technology • Reliable Quality • 1-Year Warranty
