Single rod live-line capacitor assemblies handles system voltages up to 36-kV
The new range is constructed from ceramic dielectric materials that exhibit a high AC breakdown strength, enabling them to operate continuously on a 36 kV system line, and a negligible change of capacitance with applied voltage. The devices also offer a volumetric efficiency saving over designs where two rods are connected in series to meet voltage test requirements.
Live-line capacitors are built into capacitor divider circuits which are connected to medium system voltage lines where they are used to sense the presence of voltage. The signal derived from the low voltage side of the capacitor divider can also be used to monitor supply failure and circuit conditions.
Building on the success of Morgan’s 24 kV system capacitors the new range complies with all qualification and routine production tests as detailed in IEC60358. These include a power frequency test to 70 kV RMS/min, the ability to withstand a lightning impulse of 170 kVpeak and partial discharge capability of less than 5 pC at 40 kV RMS.
The range boasts a capacitance range of 15 pF – 80 pF with dimensions (including two brass terminals) 17 mm diameter x 81 mm in length.
Visit Morgan Advanced Materials at www.morganadvancedmaterials.com
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