The coupling between coils in power transformer causes the complexity of external characteristics of internal short circuit faults.
电力变压器线圈之间的耦合特性使其内部短路故障的外部特性具有复杂性。
A new method, based on the analysis of frequency spectrum of instantaneous power, for the discrimination between internal fault currents and inrush currents in transformer is proposed.
在分析瞬时功率频谱特性的基础上，提出了一种基于瞬时功率的变压器励磁涌流和内部故障电流识别新方法。
The importance of comprehensive application of internal fault diagnosis technology of transformer is pointed out. Some examples of adopting this for fault diagnosis technology are given here.
提出了综合应用变压器内部故障判断技术的重要性，给出了采用此技术判断故障的实例。
Field tests showed that the TFDES is reasonable in structure, correct in deduction mechanism and effective in diagnosing the internal faults of transformer in operation.
现场测试表明：TFDES结构合理，推理正确，能有效诊断运行中变压器的内部故障。
The method of judging transformer internal failure by using gas-forming rate is introduced. The problems which should be paid to attention in inspecting gas-forming rate are pointed.
介绍了利用产气速率判断变压器内部故障的方法，指出了考察产气速率应注意的问题。
This paper describes internal quality problems of the oil-immersed current transformer and puts forward strategies guarding against operating errors of the oil-immersed current transformer.
简述油浸式电流互感器内部质量问题，提出了防止油浸式电流互感器运行事故的对策。
Based on this, the paper presents a new transformer protection criterion to distinguish internal faults and external faults by correlation coefficients of sampled current values.
在此基础上，提出一种基于电流采样值相关度的变压器保护新判据，利用变压器两侧电流采样值波形的相关度来区分内部故障和外部故障。
The application of these new principles improves the sensitivity and reliability of internal fault protection, and perfects the scheme of generator transformer protection.
这些保护新原理的应用，在保证高可靠性的前提下，提高了内部故障保护的灵敏度，完善了保护方案。
Application: for filling Servo motor stator, apacity, transformer, ignition coil and other devices with internal electronic components or circuit.
设备用途：用于灌注伺服电机定子，电容，变压器，点火线圈，和其他内部装有电子元件或线路的器件内。
Application: for filling Servo motor stator, apacity, transformer, ignition coil and other devices with internal electronic components or circuit.
设备用途：用于灌注伺服电机定子，电容，变压器，点火线圈，和其他内部装有电子元件或线路的器件内。
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