Measurement of the tangent of the dielectric loss angle
of insulation is performed by the Schering bridge at frequency of 50 Hz.
Higher value for the loss angle
indicates a high deg- ree of contamination.
Tenders are invited for Portable Digital Kit for Measuring the Dielectric Loss Angle
and Tongs Volt-Meter
The complement of angle between voltage and current vectors is called dielectric loss of angle [delta] or dielectric loss angle
The dependence of the storage modulus (E') and the loss angle
tangent (tan 6) on temperature for SF/PU blend fibrous membranes are shown in Fig.
Tan delta, also called loss angle
or dissipation factor testing, is a diagnostic method of dielectrics to determine the quality of the insulation.
1A and 1B, respectively) as well as the capacitance of a capacitor with specimens representing its dielectric and the corresponding values of tangens of the loss angle
compound properties Properties on part Rubber compound properties Stiffness (deformation under stress) Modulus Damping at low frequency High loss angle
Low stiffening at high frequency Low loss angle
Fatigue life Tear strength Resistance to cut increase Adhesion to metal Adhesion to metal Durability Aging resistance ([O.
r} = [Epsilon]' tan [Delta] [Delta] = dielectric loss angle
[Epsilon]" = dielectric loss factor
The evaluation of the cable's resistance to the action of external factors acting on partial capacitances and the tangent of the dielectric loss angle
of the insulation gaps between the wires.
The tangent of dielectric loss angle
can be evaluated using the relation given as,
10 that the value of loss angle
tangent of PP prepared under same vibration frequency (10 Hz) is decreasing with the increasing vibration pressure.