Reliable transformers
17 Lincoln Road,
Benoni South,
Gauteng Province,
South Africa
Contact Details
Tel: +27 11 421 2333
Fax: +27 11 421 3446

Rectifier Transformers

Reliable Transformers has been producing Transformers and related Magnetic components for more than 30 years.

We can custom design our products to meet your specific requirements and conditions.

Our products are subjected to stringent quality control and we boast an exceptionally low failure rate.

Cooling & Enclosures
  • Oil Filled
  • Dry Type
  • Winding Material
  • Copper
  • Aluminium
  • Mounting & Base
  • Flat
  • Skids
  • Skids & Wheels
  • Pole or Platform Mount
  • Standard Fittings
  • Oil Level Gauge
  • Filler & Drain Valves
  • Lifting Lugs
  • Forklift Slots
  • Lashing Holes
  • Jacking Pads
  • Marshaling Box
  • Optional Fittings
  • HV Cable Box
  • LV Cable Box
  • Conservator
  • Silica Gel Breather
  • Tap Switch
  • Oil Thermometer
  • Bucholtz Relays
  • Pole-Mount Bracket
  • Pressure Relief Valve
    KVA 10KVA 3500KVA
    Primary Voltages 400V, 525V, 3300V, 6600V, 11KV, 15KV, 22KV, 33KV.
    Custom Voltages available on request.
    Secondary Voltages Up to 200V DC
    up to 20KA
    Custom Voltages available on request.
    Electrical Winding Resistance, Winding ratio & Vector Verification, Load Loss, No-load Loss, Power Frequency, Insulation Breakdown.
    Mechanical Effectiveness of sealing, Paint thickness, Vibration & Noise.


    Our name says it all. We have been producing top quality products for more than 30 years and will continue to innovate and improve our products to ensure that you, the customer, get the best value for your money.

    We design, manufacture and test our products strictly according to the SANS 780 and other applicable transformer specifications.


    Our warranty covers any defective workmanship and/or materials for a period of 12 Calendar months from the date of purchase. Carry in Warranty.

    Proudly made in South Africa

    Our products are proudly designed and manufactured in South Africa.

    We understand the challenges our customers face in Africa. Our engineers go the extra mile to ensure that our transformers are practical and easy to handle and install. Many of our design innovations focus specifically on lifting, moving and cable installation.

    Designed by Waxed Media © Reliable Transformers 2015