RVM 5462b Recovery Voltage Meter
The recovery voltage method is based on the phenomenon of the polarization of oil/paper impregnated insulation. The RVM 5462 Advanced Automatic Recovery Voltage Meter examines the oil/paper insulation condition by tracing the polarization spectrum. For example, in moist oil/paper insulation there is a polarization of water molecules when applying a DC voltage. The water molecules acquire a polarity, drift in the direction of the electric field, and become energized. After short-circuiting the insulation some energy will still remain stored in the molecules and the “recovery voltage” of this stored energy can be measured.
DATA SHEET: RVM 5462b Recovery Voltage Meter
RVM 5462b Features
- Measurement of charging voltage, recovery voltage, initial voltage rise slope, peak recovery voltage, time to peak, insulation resistance, polarization index, polarization current, and interference voltage
- Test voltages 50 to 2000 V DC in 1 V steps
- Resistance measuring range 1 MΩ to 1000 GΩ
- Charging and discharging current measurement range 20 mA to 10 pA
- Automatic microprocessor controlled measurement
- Freely definable test procedures
- Built-in printer
- RS 232 interface for computer connection
- Built-in test box for self testing prior to measuring
- Optional available analysis software
- LCD screen shows results in alpha-numerical and graphical form
- Lightweight, compact and rugged design for use in harsh environments