Preen Power Corporation

Preen’s AFC Series is an economically priced AC power source providing reliable voltage and frequency simulation for general applications, such as testing for home appliance, electronics, medical equipment, lighting and other fields of production or R&D. Utilizing PWM switching technology, the AFC Series provides a high quality pure sine waveform with output levels up to 2,000kVA. The AC source is coupled with an output voltage range of 5~300V and output frequency of 47~63Hz, 50/60Hz fixed. The user can select an optional frequency output of 2 or 4 times standard frequency and 400Hz.

Applications: Home appliance testing General test applications such as home appliance, electronic, medical equipment, and lighting.

The AFV/APF is a series of programmable AC power source that can be remote-controlled and integrated with other systems for easier operation. Applications include home appliance, electronics, medical equipment, lighting, and more. With better accuracy and faster response time, the AFV/APF series offers greater advantages for R&D and compliance tests. Utilizing PWM switching technology, AFV/APF provides a high quality pure sine waveform with an output level up to 2,000kVA. The AC source is coupled with an output voltage range of 0~300V and output frequency of standard 45~65Hz or optional 45~500Hz. Users can select communication interfaces of RS-485, RS-232, and optional GPIB. The AFV/APF series also has programming sequence functions of STEP and GRADUAL modes, three-phase independent control, and soft start for optional choices.

Applications:

Preen’s PWF series is a family of programmable AC power source with wide range of adjustable frequency, developed for aerospace or military’s 400Hz and 800Hz test applications, such as lab use, compliance test, and quality assurance. The PWF series consists of L series and M series, which differ in output frequency ranges. The L series provides 45~500Hz and 0~300V output, and the M series provides 300~800Hz and 0-150V output. Users can select communication interfaces of RS-485, RS-232, and optional GPIB. The PWF series also has programming sequence functions of STEP and GRADUAL modes, three-phase independent control, phase angle control, and disturbance function.

Applications: Aerospace and military test applications

The PFV series is the latest programmable AC power source with four-quadrant regenerative function to return energy back to the grid. With power level up to 200kVA, Preen’s PFV series provides an output voltage range of 0~300V and output frequency of 45~65Hz. Users can select communication interfaces of standard RS-485 and RS-232 and optional GPIB, LAN, and USB. The PFV series also has programming sequence functions of STEP and GRADUAL modes, three-phase independent control, phase angle control, disturbance function and regenerative function.

Applications:Testing on motor, compressor, vehicle to grid (V2G), generator and others that require energy feedback

The ADS Series is a high power DC power supply with robust circuit design and high stability. It is suitable for inductive type loads and aerospace or military applications, such as motor equipment, production testing, maintenance & repair, generators, aircraft engines, laboratories and more. ADS provides a high quality DC source with output level up to 180 kW and 1500 A, and has overload capability up to 300%. Users can select between two output voltage: 28V ± 10% or 270V ± 10%, which is suitable for aerospace applications. ADS also can be mounted on trailers for increased mobility.

Applications: suitable for inductive type loads and aerospace or military applications, such as motor equipment, production testing, maintenance & repair, generators, aircraft engines, laboratories and more.

Utilizing PWM switching technology, Preen’s ADC series DC power supply has high power density, short response time, high accuracy and well-around protection. It has been widely adopted in prod production line, burn-in test, laboratories and integrated system. Featuring a straightforward user interface, the ADC Series has advantages of modular design with compact size and light weight. It has three models of 2kW, 4kW and 8kW unit, and can be paralleled up to 64kW with a 19 inch cabinet. With a flexible configuration design, the ADC series can economically meet the needs of various high performance applications.

Preen’s ADG series is a programmable DC power supply with high power density and high output power, offering great response time, high accuracy and many output voltage and current combinations. With output power up to 100 kW per unit, the ADG series offers output voltage up to 1600 V and output current up to 2000 A. Users can select the standard RS-485 interface or optional RS-232 and GPIB. The STEP and GRADUAL modes allow easy set-up on test sequence and depending on CV/CC settings and load conditions, the ADG series can operate as a current or voltage source. Its remote sensing feature can effectively reduce voltage drop caused by cable length and provides more flexibility on installation.

Applications: ADG is ideal for testing EV motor/compressor, server power supply, fuse/circuit breaker/contactor, and PV inverter or can be used as a facility or EMC chamber power source.

The PEL Series is an AC electronic load with regenerative function. Traditional resistive AC loads transfer the energy to heat which is dissipated. PEL not only transfers energy back to the grid and reduces the energy consumption, but also provides more accurate control and measurement for load simulation. PEL employs the most advanced PWM rectification (active rectification) technology with four-quadrant operation and digital signal processor technology (DSP). It not only can simulate different load characteristics including resistance and inductive type, but also can feed energy back to the grid, which lowers energy consumption and improves carbon dioxide emissions.

Applications: Burn-in tests, production line and laboratory applications to replace the traditional resistive type AC load bank.

Preen’s APS series of solid state voltage regulators boast high precision and short response time. Using electronic compensation design topology, the APS series can detect fluctuation on input voltage and compensate to provide pure and stable voltage. The APS series has single-phase and three-phase models with power level up to 300kVA and input voltage range of ± 18% or ± 25% optional. The ±2% voltage regulation and ≤4ms response time make it ideal for applications requiring high accuracy.

Applications: Mobile/laptop SMT production lines, medical equipment, communication equipment, communication stations, EMC test and laboratory use.