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发明公开
CN107783035A 试验负载、发电机负载试验装置及其负载试验方法 无效 - 驳回

试验负载、发电机负载试验装置及其负载试验方法
摘要：
本发明公开了一种试验负载、发电机负载试验装置及其负载试验方法。所述试验负载包括：至少一个定值电阻(11)、用于提供线性调节负载的磁控电抗器(12)、以及用于为磁控电抗器(12)提供电能的电源(13)，定值电阻与磁控电抗器串联，磁控电抗器与电源连接。本发明提供的试验负载，一方面通过选取定值电阻的数量，实现快速较大范围阻抗调节，另一方面调节磁控电抗器提供的阻抗，实现线性较小范围阻抗调节。这样试验负载既为发电机负载试验提供了线性调节的阻抗，满足部分发电机负载试验需要线性调节有功功率的要求，又不用改变发电机输出电流的导通角，避免了电流中谐波分量的增大，减少对待测发电机的损害。
摘要（英）：

The invention discloses a test load, a generator load test device and a load test method. The test load comprises at least one fixed resistor (11), a magnetic control reactor (12) for providing a linear regulation load, and a power source (13) for providing power for the magnetic control reactor (12), wherein the fixed resistor is connected in series with the magnetic control reactor, and the magnetic control reactor is connected with the power source. For the test load, on one hand, by selecting the number of fixed resistors, fast and relatively large range of impedance adjustment is realized, on the other hand, impedance provided by the magnetic control reactor is adjusted to realize linear small-range impedance adjustment, so not only can linear regulation impedance is provided by the test load for the generator load test, linear active power regulation requirements of a part of generator load tests are satisfied, but also changing a conduction angle of a generator output current isnot needed, increase of a harmonic wave component of the current is avoided, and damage to a to-be-detected motor is reduced.

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