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实用新型
CN203117240U 基于功率放大器并联的任意波形大电流发生器 失效 - 权利终止

基于功率放大器并联的任意波形大电流发生器
摘要：
本实用新型公开了一种基于功率放大器并联的任意波形大电流发生器，包括电流信号输出装置、功率放大器柜、大功率直流电源和用于功率放大器柜输出电压电流的监测终端，电流信号输出装置通过功率放大器柜与监测终端相连接，大功率直流电源与功率放大器柜的电源输入端相连接，功率放大器柜内设有两级放大电路，大功率直流电源与功率放大器柜的电源输入端相连接。本实用新型通过功率放大器并联的输出用于测试电流互感器等电器设备在直流偏磁条件下的运行的交直流复合大电流。还能够复现电网故障时的电流波形，为电网故障时电流互感器等电器设备的运行特性进行更为具体细致研究提供条件，具有良好的应用前景。
摘要（英）：

The utility model discloses a random waveform strong current generator based on power amplifier parallel connection. The random waveform strong current generator comprises a current signal output device, a power amplifier cabinet, a high-power direct current power supply and a monitoring terminal which is used for outputting voltage currents of the power amplifier cabinet. The current signal output device is connected with the monitoring terminal through the power amplifier cabinet. The high-power direct current power supply is connected with the power input end of the power amplifier cabinet, a two-stage amplifier circuit is arranged inside the power amplifier cabinet, and the high-power direct current power supply is connected with the power input end of the power amplifier cabinet. By means of the random waveform strong current generator based on the power amplifier parallel connection, parallel connection output of a power amplifier is used for testing operation AC-DC synthesizing strong currents of electrical equipment such as a current transformer under the condition of direct current magnetic bias, current waveforms during power grid failure can also be reproduced, conditions are provided for specific and detailed study of the operating characteristic of the electrical equipment such as the current transformer during the power grid failure, and therefore the random waveform strong current generator has a good application prospect.

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