TRANSEC ELECTRIC
PRODUCTS
Transec's business focuses on the reliability of transformers – continuously removing water from the insulating oil of a power transformer.
TRANSEC online drying system
CL series iVersion

1. Frame
2. Inlet ball valve
3. Inlet sampling valve
4. Pump
5. Flow indicator
6. Inlet filter
7. Inlet moisture and temperature sensor
8. Bottom interconnection pipeline between cylinder and sensor/inlet filter
9. Cylinders
10. Top interconnection pipeline between cylinders
11. Air bleed valve between cylinders
12. Bottom interconnection pipeline between cylinders
13. Top interconnection pipeline between cylinder and outlet filter
14. Outlet filter
15. Outlet moisture and temperature sensor
16. Outlet sampling valve
17. Deaerator
18. Outlet ball valve
19. Bleed pipe
20. Deaerator air bleed valve
21. AMi monitoring and control cabinet (MCC)

TRANSEC online drying system
CL4 iVersion

1. External enclosure
2. Inlet ball valve
3. Inlet sampling valve
4. Pump
5. Inlet moisture and temperature sensor
6. Flow indicator
7. Flow meter
8. Top interconnection pipeline between cylinder and sensor
9. Air bleed valve on the first cylinder and air bleed valve between second and third cylinders
10. Cylinders
11. Bottom interconnection pipelines between cylinders
12. Top interconnection pipeline between cylinders
13. Top interconnection pipeline between cylinder and outlet filter
14. Outlet filter
15. Particle filter sensor
16. Outlet moisture and temperature sensor
17. Deaerator
18. Glass gauge
19. Float switch
20. Outlet sampling valve
21. Outlet ball valve
22. Bleed pipe
23. Deaerator air bleed valve
24. WSi monitoring and control cabinet (MCC)

TRANSEC online drying system CL series iVersion
1. Frame
2. Inlet ball valve
3. Inlet sampling valve
4. Pump
5. Flow indicator
6. Inlet filter
7. Inlet moisture and temperature sensor
8. Bottom interconnection pipeline between
cylinder and sensor/inlet filter
9. Cylinders
10. Top interconnection pipeline between cylinders
11. Air bleed valve between cylinders
12. Bottom interconnection pipeline between
cylinders
13. Top interconnection pipeline between cylinder
and outlet filter
14. Outlet filter
15. Outlet moisture and temperature sensor
16. Outlet sampling valve
17. Deaerator
18. Outlet ball valve
19. Bleed pipe
20. Deaerator air bleed valve
21. AMi monitoring and control cabinet (MCC)
TRANSEC online drying system CL4 iVersion
1. External enclosure
2. Inlet ball valve
3. Inlet sampling valve
4. Pump
5. Inlet moisture and temperature sensor
6. Flow indicator
7. Flow meter
8. Top interconnection pipeline between cylinder
and sensor
9. Air bleed valve on the first cylinder and air bleed
valve between second and third cylinders
10. Cylinders
11. Bottom interconnection pipelines between
cylinders
12. Top interconnection pipeline between cylinders
13. Top interconnection pipeline between cylinder
and outlet filter
14. Outlet filter
15. Particle filter sensor
16. Outlet moisture and temperature sensor
17. Deaerator
18. Glass gauge
19. Float switch
20. Outlet sampling valve
21. Outlet ball valve
22. Bleed pipe
23. Deaerator air bleed valve
24. WSi monitoring and control cabinet (MCC)
Operational Principle

TRANSEC extracts moisture from the oil thanks to molecular sieves. An electrical pump circulates the transformer oil through the TRANSEC cylinders containing a large amount of these molecular sieves. The molecules of water dissolved in the oil will remain in the TRANSEC cylinders. Two moisture and temperature sensors are placed at the beginning and end of the system in order to monitor the moisture level of the transformer and to control a proper filtration process. Oil particles filtration and air bubble removal is also ensured during this cycle.

TRANSEC can either be mounted directly on the power transformer or can be installed on a stand-alone frame next to it. Two pipes are connected to the upper and lower valves of the transformer. Every TRANSEC unit includes sample/measuring points at the inlet and outlet.

  • Continuous monitoring of oil temperature and moisture content entering and exiting the TRANSEC unit
  • Online installation & operation – no shutdown
  • Increases life expectancy of transformers by drying the insulation paper
  • Cost effective solution – 24/7 continuous drying and monitoring
  • Maintain a safe transformer with high breakdown voltage
  • No operator required. Stand alone unit LV powered
Options available with TRANSEC
  • External enclosure
    The optional enclosure for the TRANSEC unit will protect the HMI and the hardware from rain, dust, heat from direct sunlight and UV. The enclosure is made of stainless steel.

  • Gateway for IEC 61850 protocol communication
    Monitoring and Control cabinet can be equipped with a gateway that allows to use fiber connectors for the Ethernet port.
  • Leak detection tray
    The accessory (only available on the WSi version) will detect any oil leak within the TRANSEC system and will provide the alarm accordingly. It is, of course, strongly advised to combine this option with an external enclosure (to protect from rain) and a solenoid inflow valve in order to block the oil circulation in case of leakage.
  • Inflow controllable solenoid valve
    This valve can be set remotely to operate and block the oil flow in case of leakage or rising temperature.
  • Deaerator glass gauge and switch
    To be sure that no air is entering the transformer, a deaerator is placed at the end of the TRANSEC. For additional protection, it is possible to see the level of air in the deaerator with an optional glass gauge and to have a switch that will signal an alarm if the level of air reaches a dangerous level.
  • Led indicators
    They will allow you to observe:
    - Power on — unit is working
    - CYL 70% sat — cylinders have been saturated up to 70%
    - CYL 90% sat — cylinders have been saturated up to 90%
    - System error — there is a system error that you will see on the HMI screen.

Continuous moisture
assessment with the TRANSEC monitoring

Monitoring cabinet AMi
The AMi TRANSEC monitoring cabinet continuously monitors the temperature and moisture dissolved in the oil entering and exiting the TRANSEC. This allows monitoring the good water extraction for the TRANSEC but also the moisture level of the transformer. Alarms can be set, and reports of all data collected can be downloaded.
Monitoring cabinet WSI
The WSi TRANSEC monitoring cabinet provides continuous monitoring of the temperature and the moisture dissolved in the oil entering and exiting the TRANSEC and allows to take action on it. The pump can be stopped under certain conditions. Also, other analyses are provided which will help to better understand the current moisture situation of the transformer and to take action.
Product Selection guide
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