直流电磁铁是广泛应用的电磁控制元件，PT C元件是具有正温度系数特性的半导体陶瓷热敏电阻。
Direct current electromagnet is extensively used as electromagnet controlling element. PTC element is a ceramic thermistor with positive temperature coefficient.
在非线性电阻消谐方式下，正温度系数(PTC)热敏电阻和三次谐波滤波器可以较好地解决零序电压偏高的问题。
Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.
借此制成一种电阻的温度系数为正、工作温度较高的半导电电缆料。
Thereby a semiconductive material has been developed with positive temperature coefficient of resistivity and with higher operating temperature for cables.
介绍了正温度系数热敏电阻PTCR耐雷电波冲击测试仪的工作原理和基本性能。
This paper presents the theory and performance of the tester for PTCRs endurance of being struck by lightning.
实验指出，其电阻率随温度的变化呈不同强度的正温度系数（PTC）效应。
The results of experiment show that the resistivity of the composites changes along with the temperature in a behavior of positiver temperature coefficient (PTC) effect.
PTC材料 （正温度系数热敏材料 ）具有电阻率随温度升高而增大的特性 ，是一种应用广泛的电子材料。
PTC material, which has the property of positive temperature coefficient, is a kind of widely used electronic material.
马达启动用正温度系数热敏电阻器，只要用于电冰箱、空调马达启动、空调变频机启动、马达过热保护等。
Motor-starting PTC Thermistors are mainly used in fridge and air-conditioner motor-starting, air-conditioner transducer-starting, motor over-heating protection.
马达启动用正温度系数热敏电阻器，只要用于电冰箱、空调马达启动、空调变频机启动、马达过热保护等。
Motor-starting PTC Thermistors are mainly used in fridge and air-conditioner motor-starting, air-conditioner transducer-starting, motor over-heating protection.
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