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Novel test circuits for protective relays

机译:新型保护继电器测试电路

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摘要

IN THE TEST, calibration, checking, and setting of protective relays, and in the determination of their characteristic operating curves, it is of course necessary to apply to the relays the quantity or quantities which are expected to operate it. Problems are sometimes encountered in obtaining suitable test facilities, particularly when two or more variable a-c quantities are involved, and the phase angle between the quantities must be known or controlled. The solution to such problems generally may be obtained in the laboratory by special circuits and equipment.
机译:在测试,校准,检查和设置保护继电器,以及确定其特性曲线时,当然有必要将期望操作的数量施加到继电器上。在获得合适的测试设备时有时会遇到问题,特别是当涉及两个或多个可变的a-c量时,必须知道或控制这些量之间的相角。解决这些问题的方法通常可以在实验室中通过专用电路和设备来获得。

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