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Feature
Standard 8kVA module, modulation adaptive
The latest IGBT technology, high voltage and high power
Advanced MCU+DSP+FPGA framework
Efficient Class D power switch with 3sigma peak current
Advanced digital loop control algorithm
Switching frequency up to 150khz
Signal-to-noise ratio >65db
The current imbalance in parallel operation <1%
Energy efficiency ratio >93%
Dedicated and important interlock protection
Description
The JER-H series switching power amplifiers are designed with the latest IGBT technology and MCU+DSP+FPGA architecture to ensure high power availability and high security. The single power module is designed with a standard 8kVA output and a large peak power margin. This feature makes the JER-H series of power amplifiers competent for most types of electric exciters. Different number of modules can be combined according to the actual power requirements, without the need to replace the rack. Using advanced MCU+DSP+FPGA architecture, JER-H series power amplifier, digital control, to ensure the high security of each module and the entire system, to avoid the failure of a single module caused by the collapse of the entire system. JER-H series power amplifier is also based on the integrated design of logic unit, power unit and control unit, and has obvious advantages such as reliability, flexible configuration, energy saving and easy maintenance.Technical parameter
| Amplfier Model | JER-H402A | JER-H802A | JER-H123A | JER-H243A | JER-H323A | JER-H563A |
| Max. Output Power (kVA) | 4 | 8 | 12 | 24 | 32 | 56 |
| Number of Power Modules | 1 | 1 | 2 | 3 | 4 | 7 |
| Rated Output Voltage (Vrms) | 120 | 120 | 120 | 120 | 120 | 120 |
| Switching Frequency(Hz) | 150k | 150k | 150k | 150k | 150k | 150k |
| Harmonic Distortion (5-5000Hz) | ≤0.8% | ≤0.8% | ≤0.8% | ≤0.8% | ≤0.8% | ≤0.8% |
| Signal Noise Ratio (dB) | >65 | >65 | >65 | >65 | >65 | >65 |
| Frequency response(5-5000Hz) | ±1.5dB | ±1.5dB | ±1.5dB | ±1.5dB | ±1.5dB | ±1.5dB |
| Input Impedance(KQ) | >10 | >10 | >10 | >10 | >10 | >10 |
| Output field voltage(VDC) | 270 | 270 | 270 | 270 | 270 | 270 |
| Amplifier Efficiency | >93% | >93% | >93% | >93% | >93% | >93% |
| Interlocks Protection | Input over/less voltage, Output over current/voltage, over travel/temperature, Oil pressure, Logic/module/cooling failure, etc. |
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