Voltage sensing device

The invention relates to a voltage sensing device (1) for a high and/or medium voltage power carrying conductor (2), the voltage sensing device comprising: a radially outer electrode (3) operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power carrying conductor; a radially inner electrode (2, 6) operable as a second sensing electrode of the sensing capacitor; a dielectric material (5) arranged between the inner and the outer electrode (3, 2, 6), wherein the coefficient of thermal expansion of the material of at least one electrode (3, 2, 6) is selected such that it compensates the temperature dependent parameters of the dielectric material (5) and/or the other electrode (3, 2, 6), that influences the capacity of the voltage sensing capacitor. 本发明涉及用于高压和/或中压电力承载导体(2)的电压感测设备(1)，电压感测设备包括：径向外电极(3)，该径向外电极可操作为用于感测电力承载导体的电压的感测电容器的第感测电极；可操作为感测电容器的第二感测电极的径向内电极(2,6)；布置在内电极(2,6)和外电极(3)之间的介电材料(5)，其中至少个电极(3,2,6)的材料的热膨胀系数被选择成使得该材料补偿影响电压感测电容器的电容的介电材料(5)和/或其它电极(3,2,6)的温度相关的参数。