Tangent Delta
test's dielectric loss to determine quality of insulator.
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Product
Dielectric Loss Tangent Testing Instruments
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Insulation materials in electrical equipment are used between a pair of electrodes; therefore it can be expressed as capacitors. Applying AC voltage to a capacitor with insulation materials causes an energy loss due to the leak current, the dielectric polarization, and the partial discharge. Because of this, the phase of the capacitor current is more delayed than that of a zero-loss current (reactive current) flowing in an ideal insulation material. The delay angle is called "Dielectric Loss Angle", and the tangent is "Dielectric Loss Tangent" (tanĪ“). Please refer to the technical guide explained in detail.
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Product
12 Kv Fully Automatic Capacitance Tan Delta Tester With Printer
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NMC offer Fully Automatic Capacitance Tan Delta Test Set with Printer and Computer Interface, Range : 0-12kV, Model : CTD-12.
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Product
Dielectric Loss Tangent and Transmission Attenuation Measurement System
RTS03
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RTS03 measures relative permittivity (dielectric constant), dielectric loss tangent in the frequency range between 5GHz and 26.5GHz based on a correlation between measurement frequency and transmission attenuation as the microwave passes through the flat plane sample.
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Product
Automatic Dielectric Constant, Tan Delta & Resistivity Test Set
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*Fully automatic or manual measurement In-built AC/DC voltage sources.*RS232 computer interface & USB printer interface provided.*Menu-driven software operation.*Data storage facility.
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Product
Oil Tan Delta Tester
OTD
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The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. The microprocessor controlled inductive heater means that there is uniformity of temperature throughout the cell, in compliance with IEC 60247, and for cooling a fan effectively speeds up the cell cooling time. The instrument has a temperature measuring range of 10 to 110 C, with an accuracy of 1 C. It can be set to preheat before testing takes place. The automated oil drain facility negates the need to move the oil vessel. User safety is paramount and with this in mind, Megger have designed independent and dual redundant high voltage cut-off circuitry. If for any reason the user needs to abort the test, this can be done so by pressing any key, immediately terminating the test and removing the high voltage. The design of the cell components maximise oil fill rate but minimise turbulence in oil flow and eliminate trapping of air. With only 32 cell components, it is easy to assemble and disassemble.
