PARTNERS

Elprom Heavy Industries is a producer of Power Transformers and Tap Changers with more than 70 years of experience. The factory is built in the distant 1949 under the name “Vasil Kolarov” and is improving and developing to this day and paid special attention for improving labor safety, providing healthy work conditions and environment by continuous investments in equipment and machines.
The management continuous endeavor for innovation and challenge for the future requirements are the main engines to guarantee the betterment of the company.

ERG products include:

various types of Cooler for UHV transformer and wind power generator oil pumps for locomotive, other relevant components for transmission and distribution, and electrical control system etc. We are very proud to support our products and services to more than 100 regions around the world.

Products:

Off load TAP CHANGERS

PROTECTION RELAY

BUCHHOLZ RELAY

THERMOMETERS

PRESSURE SAFETY VALVES

OIL LEVEL INDICATORS

TRANSFORMER CONSERVATOR AIRBAG

The purpose of the transformer conservator airbag is:

  • to compensate variations in oil volume due to temperature changes
  • An effective barrier between oil and air
  • Protection against humidity
  • The elimination of gas bubbles formed in the oil
  • A prevention of oil oxidation and pollution
  • A prevention of condensation

The compensation volumes provided by the transformer air cell can reach 40m3

What do you need to know about your product or your system? Which certified quality is required?
MONILOG® RISK LOGGERS reliably record the measured values and report them at the time and in the format meeting your requirements.