Practon Power Equipment
Our Equipment
Overview
Equipment
Contact
Practon Power: Sole Australian Distributor for Trafindo

Oil-Immersed Transformers
Trafindo is most well-known for the oil-immersed transformers.
With a well-proven track record, we supply the pole-mounted transformers to PLN and the larger ground-mounted units to various sectors.
(Up to 4,000 kVA, 36 kV — PLN certified)
Power Transformers
Supported by Siemens, we manufacture power transformers of the highest quality and innovative technology.
(Up to 100 MVA and 275 kV)


Dry Transformers
Suitable for high-rise buildings and important installations. Trafindo cast resin transformers offer higher temperature withstand, longer life, and of course is maintenance-free.
(Up to 8,00 kVA, 36 kV — ASTA Certified)
Special applications:
- Insulation Class F or H
- Additional Fans for Increased Cooling and/or Capacity
- Environmental Class E/C/F
- Optional IP Rated Enclosure
3D Oil Immersed Transformers
Using 3 identical rectangular frames which are joined to form an equilateral triangle, Trafindo is the first in Indonesia to offer this unique-shaped symmetrical transformer.
This transformer offers many advantages unmatched by traditional stacking core transformers.
(200 – 2,000 kVA, 36 kV)
- Reduced electricity cost, especially during low-load periods due to its ability to increase power factor.
- Great for installation sites with sensitive instruments/equipment where special harmonic withstand is required.
- Use as an isolation transformer.
- Low noise level.


Padmount Transformers
Applications: Radial Feed or Loop Feed, Special Oil.
Neutral Grounding Resistor (NGR)


Instrument Transformer (CT / VT)
Current and voltage transformers, indoor and outdoor type, installed in switchgears or at powerlines. For protection and metering purposes.
(Up to 25 kA, 36 kV, PLN Certified, CE Marked, ISO 17025 Certified)
Special Transformers
Various types of transformers with numerous features and different applications, including: On Load Tap Changers, Amorphous Core, Special Oil, etc.
Applications include:
• K-Rated Transformer
• Isolation Transformer
• AVR (Automatic Voltage Regulator)
• Earthing/Zigzag Transformer
• Arc Furnace Transformer
• Traction Transformer
• Three-Winding Transformer
• Phase-Shifting Transformer
Whatever your application is, Trafindo is able to cater to your needs. Please consult our sales engineers.




Electrical Switchboards & Substations
Our substations are built with the following equipment:
- Type tested, form 4a/4b
- Rated IP56 outdoor
- Rescue kit cubicle
- 1250A 30kA electronic E2N circuit breaker
- 400A 20kA electronic T5V circuit breakers
- 250A 20kA electronic T4V circuit breakers
- Motor operators on all switchgear with lockout device’s
- Earthing reactor with leakage monitoring
- Outgoing feeders with leakage monitoring
- 240VAC injection test point for current and time testing
- Arc fault protection ABB TVOC-2
- PLC/HMI Interface for remote operation
- Metering and datalogging functions
