
Electrical Insulation Research Center
Contacts
General Contact
imsinfo@uconn.edu
Staff

JoAnne Ronzello
Research Assistant, Lab Manager
- Joanne.ronzello@uconn.edu
- 860.486.5594
Faculty Scientific Advisers

Yang Cao, Ph.D.
Associate Professor
- Gant Room 105A
- yangcao@engr.uconn.edu
- 860.486.0915
Location
Campus Address
Storrs Campus
Mailing Address
97 North Eagleville Road
Storrs, CT 06269-3136
Instrumentation

Broadband Dielectric Spectroscope
Combining the time-domain technique with frequency-domain spectroscope comprises a Broadband Dielectric Spectroscope System for measuring various polarization/relaxation processes, conductivity and electrochemical impedance over a wide range of frequency and temperature. The Time Domain Technique provides one of the best ways of measuring the conductivity of polymeric samples, while frequency domain impedance analyzers extend the measurement frequency range to 1GHz.

Modified Sawyer-Tower Ferroelectric Tester
A modified Sawyer-Tower ferroelectric tester is available for the measurement of the P-E loop of a ferroelectric device, i.e., the charge or polarization developed against the electric field at a given frequency. The setup is designed for polarization study under high electric field (+/-10kV) at frequency up to 1kHz.

Pulsed Electroacoustic Space Charge Profiling
This Pulsed Electroacoustic Space Charge Profiling technique can measure high field charge injection and conduction for both flat coupon and cylindrical sample (power cables) with a spatial resolution of 5 micron. Higher resolution can be achieved with lithium niobate based sensory.

High Field Conduction-Guarded Needle
Carrier mobility-related prebreakdown phenomena can only be studied within microscopic dimensions, as the power dissipation would cause thermal runaway for a macroscopic geometry. The guarded needle apparatus is designed for such measurement, using a sharp metal needle to create local high electrical field, which induces carrier mobility.

Thermal Conductivity Meter
The DTC-300 measures thermal conductivity of a variety of materials, including polymers, ceramics, composites, glasses, rubbers, some metals, and other materials of low to medium thermal conductivity. Only a relatively small test specimen is required. Nonsolids, such as pastes or liquids, can be tested using special containers. Thin films can also be tested accurately using a multilayer technique.

Other Equipment
- High Voltage Test Transformers
- Partial Discharge System
- High Frequency/High Temperature Aging
- Tracking Resistance
- HV Switchers for Pulse Discharge Energy Density Characterization
- Automatic Film Breakdown Tester
- Digital (Stanford Research Systems SR830) and Analog Lock-in Amplifiers
- High voltage Capacitance and Tan-delta Bridge
- Salt-Fog and Clean-Fog Chamber
- Tektronics Oscilloscopes (200 MHz to 1 GHz)
- Keithley fA meters