3721 / 3723

Tan δ / Power Factor Standards

Dissipation factor / tan δ standards are designed for checking the accuracy of capacitance and dissipation factor measuring instruments. 

Model 3721 is a resistance unit  with four tan δ values housed in a sheet-metal casing. 

Four sockets for LEMO-3 cable are provided on one side of the casing and  two plugs on the other. 

The resistance of the unit plugs directly into the top of the type 3320 standard capacitor series.
Model 3723 is a resistance unit with single value tan δ resistors housed in separate casing. 

Each casing plugs directly into 3370 nominal capacitor series. 

* Feature

Compatible with Haefely & Tettex nominal capacitors type 3320 & 3370 to facilitate power factor/ tan delta  bridge calibration.