Introduced the reason and harm of the false oil position in transformer and provided site correct oil injection method.
介绍变压器产生假油位的原因和危害，提出现场正确注油的方法。
Two methods, which are called as a small test-signal injection and the differential transformer, are studied in order to detect the rotor displacement without sensor.
研究了转子位移无传感器检测的两种方法，即小信号注入测试法和差动变压器测试法。
Collecting ring is a key part in micro motor. It is widely used in revolution transformer and autosyn. The injection quality of the part relates to the property and life span of motor.
集电环是微特电机中的关键零件，广泛应用于旋转变压器和自整角机中，此零件注塑质量直接关系电机的性能和寿命。
The way of installing QJ-40 gas-pressure relay and the oil injection craftwork of transformer are key influencing factors.
气体继电器安装方式和全密封变压器注油工艺是主要影响因素。
Range hypothesis vent plug and tube joint is not correct, then in the transformer oil injection will constitute a bubble chamber.
假设放气塞和管接头的方位不正确，那么在变压器注油以后会构成气泡腔。
The injection probe is a current transformer through which the wiring harnesses of the device under test are passed.
注射探查器就是电流变压器，通过电流变压器在测试中的配线导线可以被传递。
The injection probe is a current transformer through which the wiring harnesses of the device under test are passed.
注射探查器就是电流变压器，通过电流变压器在测试中的配线导线可以被传递。
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