1. Intellectual Insulation Indicator «3i»
Portable Device for On-line Insulation Monitoring

2. The Device Application
The multipurpose «3i» device is for on-line insulation condition estimation in the following equipment:
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.

3. The «3i» Delivery Set The standard delivery set: Transport case,
The «3i» device,
Power supply,
USB cable,
Headphones,
CD with software.
Additionally can be equipped with external sensors «TEV», «RFCT» and acoustic.

4. The main features of device
2-band PD - HF ( MHz) and an acoustic - 40 kHz;
Save all of the measured data with the subsequent processing and viewing on a computer;
The possibility of using routing technology using RFID;
Possibility of calculating the life of equipment and the use of state of repair;
Capacity battery (more than 8 hours of measurement);
Reliable and secure housing case.

5. The «3i» Device Specifications
Acoustic sensor frequency range
40 ± 2 kHz
The «TEV» and «RFCT» sensors frequency range
0.5 ÷ 100 MHz
The dynamic range of the acoustic channel
80 dB
The dynamic range of the «TEV» and «RFCT» channel
70 dB
Battery life
8 h
Operation temperature range
-20 ÷ 60 °С
Device dimensions
187*78*43 mm
Weight
0,6 kg

6. The «3i» Device Comparison
Param/Device
UltraTEV Plus
PD-SGS
PDS Air 3i
TEV
Input range, dBmV
0 – 60
0 – 80
15 – 50
0 – 70
PD detection no
yes
Ultrasonic
Input range, dBµV
-7 – 68
-6 – 70
8 – 30
Medium and dimensions
Work time, hours 5 12 8
IP class 54 30
Work temp., °С
0 – 55
-10 – 50
-20 – 60
Dimension, mm
205x72x35
190x90x65
120x210x220
190x80x45
Weight, kg
0.3
1.3
0.6

7. New features in version 2 device
New convenient and lightweight case
Reliable connectors
More powerful battery
External synchronization
Wi-Fi Interface
Remote control capability
New firmware:
PRPD-distribution
Wi-Fi sensor mode
Additional settings
Improved power saving mode

8. The capacitive «TEV» sensor
External sensors
The acoustic sensor
The capacitive «TEV» sensor
The inductive «RFCT» sensor

9. External sensors
Sensors for reference synchronization signals PRF-1 and PFR-2
Test signals generator
Acoustic channel:
40 kHz, 30 dB, 100 pulses / sec
TEV Channel:
30dB, 100 pulses per second

10. «3i» Operation Modes AC int. – embedded acoustic sensor
TEV int. – embedded TEV sensor
AC int. + ext. – embedded and external acoustic sensor
TEV int. + ext. – embedded and external TEV sensor
RFID – measuring by RFID tag
Route – measuring by saved route
RFID setup – setting RFID tag by information of route

11. The «AC» modes Simultaneous recording of one or two channels
Trend pulse amplitude
Color indication of excess thresholds
Gain indication
PD pulse detection

12. The «TEV» modes Simultaneous recording of one or two channels
Trend pulse amplitude
Color indication of excess thresholds
PD pulse detection

13. The «RFID» mode Reading data from RFID tag
Making measure according to parameters from RFID data

14. Examples of placing RFID tags
Standart Mifare IEC

15. The «Route» mode Selecting route
Making measure according to parameters from route

16. INVA Portable – is powerful and easy-to-use program
The Software
INVA Portable – is powerful and easy-to-use program

17. Device settings
low PD level, norm
middle PD level, supervision
high PD level, inspection
alarm PD level, analysis
The «3i» device can be configured using INVA Portable software.

18. Configuring the routes
In the software the user creates the folder structure similar to the enterprise structure and downloads it into the device.

19. Configuring the routes
For each point of the route or group of points can be specified the type of measurement and the thresholds.

20. Download and view measurements
The software allows you to store measurements from the device to the computer, view and build trends.

21. Creating reports
The program INVA Portable allows you to create three types of reports:
Report on the technical state of the equipment
Repair cycle report
Measurement cycle report
Report on the residual service life

22. Report on the technical state of the equipment
This report shows the excess values of warning and alarm thresholds.

23. Repair cycle report
This report shows the recommended time of equipment repair.

24. Measurement cycle report
This report shows the time of the next measurement.

25. Report on the residual service life
This report shows the estimated residual life of the equipment.

26. Thank you for your attention.
The End
Also, the device and the software can offer a lot of other useful and convenient functions.
Thank you for your attention.