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The 5-20kVA Variable Frequency AC Power Supply is designed to provide adjustable AC power for industrial motor and fan development, functional evaluation, and production testing. With adjustable output voltage and frequency, it allows engineers to establish different AC input conditions when evaluating compatible industrial motors, ventilation fans, and other AC-powered equipment.
Available in four capacity options — 5kVA, 10kVA, 15kVA, and 20kVA — this single-phase input AC power source accommodates different testing power requirements. Its 7-inch color touchscreen, preset voltage and frequency settings, online parameter adjustment, power-off memory, and voltage ramp function support convenient operation in laboratory and industrial testing environments.
Provides adjustable AC output voltage for supplying compatible industrial motors and fans during input power testing. Users can select the required voltage according to the rated input specifications of the equipment under evaluation.
Supports adjustable output frequency within the specified operating range. This allows engineers to establish different AC input frequency conditions when evaluating compatible motors and fans designed for corresponding frequency requirements.
Available in 5kVA, 10kVA, 15kVA, and 20kVA configurations. Users can select a suitable capacity according to the rated power requirements of the motor, fan, or connected testing equipment.
The power supply supports inductive loads as well as resistive, capacitive, and rectifier loads. This makes it suitable for testing setups involving compatible AC motors, fans, and other inductive-load equipment, subject to the selected model's capacity and operating limits.
The 7-inch color touchscreen provides an operating interface for setting output parameters and viewing operating information. It displays voltage, current, power, frequency, and power factor, helping users monitor the AC power source during testing.
Users can preset output voltage and frequency parameters for repeated testing procedures. Online adjustment allows voltage and frequency settings to be changed during operation, while the power-off memory function retains the previous output mode and parameter settings.
The voltage ramp function gradually increases the output voltage toward the selected setting. It can be used when evaluating how compatible motors and fans respond to a gradual change in their AC input voltage.
The power supply provides overload, overcurrent, overvoltage, overheating, and short-circuit protection. When a protection condition occurs, an alarm and corresponding fault code are displayed to help users identify the event.
The aging impact mode provides an operating option for applications involving power-on and power-off impact conditions. The system also uses high-frequency SPWM hardware adjustment and a high-power IGBT drive design as part of its power conversion and output control system.
Provides adjustable AC input power for evaluating compatible industrial motor operation under selected voltage and frequency conditions. Engineers can establish the required input settings according to the motor's rated specifications.
Supplies adjustable AC power to compatible industrial fans and ventilation equipment during laboratory evaluation. Adjustable voltage and frequency settings help establish different input conditions for fan testing procedures.
Provides different AC input frequency conditions for compatible motors and fans. Engineers can evaluate equipment operation at selected frequency settings within the supported operating range of the power supply and the connected equipment.
Provides a controllable AC power source during industrial motor and fan development. Adjustable voltage and frequency settings allow engineers to establish selected supply conditions during product evaluation and design verification.
Can be integrated into production testing setups where motors and fans require an adjustable AC input source. Preset parameters and online adjustment support repeated power supply testing procedures.
Provides AC power for compatible motor and fan aging evaluation setups. The voltage adjustment and aging impact mode can be incorporated into testing procedures involving specified power-on and power-off conditions.
Each unit is inspected before shipment.
Standard accessories and product documentation are supplied according to the package configuration.
Please confirm the required capacity, input power conditions, output voltage range, and installation requirements before ordering.
The 0–600V output is a customized option and must be confirmed before purchase.
Please select the appropriate capacity according to the rated power and input requirements of your motor or fan.
Confirm that the connected motor or fan is compatible with the selected output voltage and frequency conditions.
Contact our customer support team if you need assistance confirming model specifications or product configuration.
| Parameter | Specification |
|---|---|
| Product Type | Variable Frequency AC Power Supply |
| Input Phase | Single Phase |
| Rated Capacity Options | 5kVA / 10kVA / 15kVA / 20kVA |
| Input Voltage | 220V ±10% AC |
| Input Frequency | 50/60Hz ±5Hz |
| Standard Output Voltage | 0–300V AC |
| Customized Output Voltage | 0–600V AC (Custom Option) |
| Output Frequency | 45–400Hz |
| Output Waveform | Standard Sine Wave |
| Supported Load Types | Resistive, Inductive, Capacitive, Rectifier |
| Total Harmonic Distortion (THD) | ≤2% (Under Resistive Load) |
| Crest Factor | 3:1 |
| Frequency Stability | ≤0.1% |
| Voltage Stability | ≤1% |
| Source Effect | ≤1% |
| Load Effect | ≤1% |
| Efficiency | ≥85% |
| Voltage Setting Resolution | 0.1V |
| Voltage Setting Accuracy | ±(0.5% of Reading + 0.5% of Full Scale) |
| Frequency Setting Resolution | 0.1Hz |
| Frequency Setting Accuracy | ±0.05% |
| Voltage Measurement Resolution | 0.1V |
| Voltage Measurement Accuracy | ±(0.5% of Reading + 0.5% of Full Scale) |
| Frequency Measurement Resolution | 0.1Hz |
| Frequency Measurement Accuracy | ±0.05% |
| Current Measurement Resolution | 0.1A / 1A |
| Current Measurement Accuracy | ±(0.5% of Displayed Value + 0.5% of Rated Output Value) |
| Power Measurement Resolution | 0.1kW / 0.01kW / 0.001kW |
| Power Measurement Accuracy | ±(0.5% of Reading + 0.5% of Full Scale) |
| Display | 7-Inch Color Touchscreen |
| Displayed Parameters | Voltage, Current, Power, Frequency, Power Factor |
| Parameter Adjustment | Online Voltage and Frequency Adjustment |
| Preset Function | Output Voltage and Frequency Presetting |
| Memory Function | Power-Off Memory for Previous Output Mode and Settings |
| Additional Functions | Voltage Ramp, Aging Impact Mode |
| Control Technology | High-Frequency SPWM Hardware Adjustment |
| Power Drive | High-Power IGBT Drive |
| Protection Functions | Overload, Overcurrent, Overvoltage, Overheating, Short Circuit |
| Fault Indication | Alarm and Fault Code Display |
| Protection Rating | IP20 |
| Operating Temperature | -10°C to 40°C |
| Operating Humidity | 10%–90% at 25°C, Non-Condensing |
| Maximum Operating Altitude | ≤2000m |
| Model | Rated Capacity | Dimensions | Weight |
|---|---|---|---|
| Model 1 (5KVA) | 5kVA | 530 × 430 × 592mm | Approx. 50kg |
| Model 2 (10KVA) | 10kVA | 530 × 430 × 703mm | Approx. 100kg |
| Model 3 (15KVA) | 15kVA | 580 × 478 × 950mm | 140kg |
| Model 4 (20KVA) | 20kVA | 649 × 528 × 1020mm | 170kg |
Important Notes:
All four models in this product listing use single-phase AC input.
The standard output voltage is listed as 0–300V AC. The 0–600V AC configuration is a customized option and requires confirmation before ordering.
THD ≤2% is specified under resistive load conditions.
The 45–400Hz frequency range should be confirmed for the selected capacity before purchase.
Actual output current and available power depend on the selected model, output voltage, and load conditions.
Industrial motors and fans must be compatible with the selected output voltage and frequency. Please confirm motor starting requirements and load characteristics before selecting a power supply.
Please confirm the required input current, wiring, and circuit breaker capacity before installation.
Communication interfaces and protocols are not listed as standard features because their availability and configuration have not been confirmed.
Industrial motor and fan testing requires an appropriate AC power source to establish different voltage and frequency conditions during product development, functional evaluation, and production testing.
This variable frequency AC power supply combines adjustable AC output, four capacity options, inductive-load support, touchscreen operation, preset parameters, online adjustment, and practical voltage control functions in one system.
Whether used for industrial motor input testing, fan development, production testing, or aging evaluation, it provides an adjustable AC power source for compatible motors, fans, and related industrial equipment.
30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.
Please feel free to reach us with any concerns:
Email: kuaiquinstrument@163.com
We strive to reply to you within 24 hours.
Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.
We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.
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