Tan Delta Test Kit

DOBLE make M4100 Insulation Analyzer evaluates the integrity of high-voltage substation apparatus by measuring the power factor/tangent delta, along with a number of other essential values. It also measures the capacitance, to evaluate physical changes to the apparatus. The M4100 provides accurate evaluations even under conditions of high electrostatic and electromagnetic interference. The instrument evaluates the integrity of high-voltage substation apparatus by measuring the power factor/tangent delta and a number of other values. It also measures capacitance, to evaluate physical changes to the apparatus.

The M4100 allows you to perform a variety of diagnostic tests:

Power Factor testing to confirm insulation integrity and quality
Capacitance testing to measure physical changes that may have occurred to the apparatus
Turns Ratio testing to detect shorted turns or winding damage
Leakage Reactance/Short Circuit Impedance testing to evaluate winding deformation
Single Phase Excitation Current testing to evaluate the transformer's magnetizing circuit

The accuracy of test results is directly related to the quality of the test signal. While most test instruments use available power lines or portable generators to generate the output test signal, the M4100 uses an internal waveform generator to create its own precise sine wave. This produces reliable results and stable readings. The quality of the power source is not an issue.