3i
SWITCHGEAR AND CABLE MONITORING SYSTEMS.
The portable multipurpose 3i device (Intellectual Insulation Indicator) is for eff ective high-voltage equipment insulation monitoring on-line. The 3i device measures and analyses partial discharges (PD). For eff ective PD measurement and noise rejection, there are two types of sensors used in the device: the acoustic sensor and the TEV sensor. Both the sensors are built into the device case, and so do not need any connection cables. The device is supplied in a strong metal case; at the faceplate there are the colored screen and two buttons: power button and function button.
Features
- 6 - 35 kV switchgears of various designs;
- Terminations and joints of cables;
- High-voltage gas-insulated equipment (Gas-Insulated switchgear (GIS)) of any rated voltage.
- The tanks of power transformers, breakers, etc.
- The multipurpose 3i device is for on-line insulation condition estimation in the following equipment:
Specifications
Parameter | 3i |
In-built PD sensors | acoustic, TEV |
In-built acoustic sensor frequency range, kHz | 40 ± 2 |
In-built TEV sensor frequency range, MHz | 10 - 100 |
LCD resolution, pixels | 240 x 320 |
PC connection | USB |
Battery life, hours | 10 |
Operation temperature range, °C | -20 ÷ 40 |
Device dimensions, mm | 187 x 78 x 43 |
Weight, kg | 0.6 |