The 3730 is a compactly designed 12 kV SF6 reference capacitor with seven calibrated, manually selectable values of tan delta (power factors)
A fast functional check of capacitance and tan delta bridges like MIDAS 2881 or MIDAS micro 2883 among others is possible.
Tan d (power factor) value selection is done by a rotary switch.

Advantages
• Flexible connection to the measuring bridge
• Allows for a complete range check
• Offers a fast functional check for tan d
• Convenient for functional check of mobile measuring bridges
• Stable and reliable ceaseless operation

Applications
• Fast functional check of capacitance and tan bridges such as MIDAS 2881, MIDAS micro 2883 and others