18. Transformer Breathers
18
Conservator Tank
Main Tank
LTC
Transformer Oil
& Solid Insulation
A product line designed to keep transformers containing a
conservator tank and/or a Load Tap Changer DRY.
transformers containing RY.
• Silica gel regenerated.
• Does not require
additional maintenance by
the user.
21. Partial Discharge Monitor
21
Type of Defects in transformers
1.
2.
1. Discharge in Coil winding
2. Corona discharges on sharp
edges (ground or HV)
3. Void discharges from
bushings
4. Floating parts (not proper
connected to HV or ground)
5. Void discharges in solid
insulation material
6. Surface discharges (on
insulating material)
3.
4.
5.
6.
22. Transformer Bushing Monitor
22
Data
Acquisition
Unit
Software
Reference Voltage
(VT):
Bushing
Temperature
measurement
Monitoring Unit:
• Data handling/ processing
• 61850/ SCADA integration
• Data display
• Expert System
• Data storage
Data Acquisition Unit:
• 6 Bushing channels
• 6 Reference channels
• 6 temperature channels
• Filtering/ de-noising
• digitalisation
Bushing Monitor for 6 bushings
Bushing Tap
Adapter
Monitored parameter
-Capacitance
-Tan Delta
23. Typical bushing defects
23
Insulation ageing
- Oil
- paper
Moisture Voids/
Delamination’s
Surface
discharges (no
real defect)
Contact
problems
Partial breakdowns
(short circuit between
layers)
Surface
contamination
Type of Defects in bushing
24. Transformer DGA Monitor
24
Gas Chromatography(GC)
–is the only method approved by IEEE / IEC
standards, though other methods do exist.
26. What is QTMS?
Highly configurable and easily field upgradable monitor for transformers and related assets
QTMS
LPRD XPRD
RPRR
Pressure Temperature
104 / AKM345
Level / Flow
Liquid Level
Flow Gauges
SmartSub
Smart BreatherDissolved Gas Analysis
Multi-Gas
Single Gas
Direct
Winding FO
1 & 2 kg 4 kg
Sensor Data
Polar and Offshore
Partial Discharge Additional Monitoring
609
OCU
Web Interface
Bushing
LTC
Monitoring
Geomagnetically
Induced Current
Qualitrol Solution- QTMS
26
27. What is QTMS?
Bushing Monitor
• Real time monitoring of bushing
health
• Detect early changes in Tan Delta
• Detect early changes in capacitance
Relays
• Versatile control of cooling systems,
alarms, and trip signals
• 8 relays per module
• Up to 112 relays available per system
Rapid Pressure Rise
Relay
• Help prevent catastrophic damage
due to sudden pressure increases
• Trip function to avoid further damage
due to potential fault occurrence
* not represented in the image
Fiber Optics
• Accurate direct winding temperature
• Accurately characterize asset aging
• Available in 4, 6, or 8 inputs
CPU
• USB and serial port connections;
IEC61850, DNP 3.0, Modbus,
IEC60870
• Web based interface
• Universal power supply
Digital Inputs
• Completely configurable per
specification with wiring on front panel
• 14 digital inputs per module
• Up to 196 digital inputs per system
Modular approach for ease in customization, configuration, and field upgradable
1
2
4 5
7
2
3
4
56
6
Analog Inputs
• Accepts a variety of analog input
types with flexible configuration
• 8 analog inputs per module
• Up to 112 analog inputs per system
Display
• Optional push button display screen
• Large backlit LCD screen
• Integrated overlay buttons
8
8 7
1
Qualitrol Solution- QTMS
28. Station level view: Line diagram showing
assets
Component level view: Showing all displays, data trends and other analysis for each parameter
Intelligent Visualization
SmartSUB: Easy to use HMI
Country wide view: Showing all
substations
Asset Level View
Qualitrol Solution- SmartSub
28