Applied-voltage phase rotation tests and phasor comparison between HV and LV terminals verify clock notation (e.g. Dyn11). Used for parallel operation and protection.

AVRs compensate for feeder voltage variations and maintain acceptable LV levels for end users, improving power quality.

The turns ratio test verifies correct voltage ratio between windings, proper vector group, polarity, and tap settings. Deviations may indicate winding deformation, shorted turns, or tap changer faults.

Reactive power is consumed by the transformer’s magnetizing current and leakage inductance. To establish alternating flux in the core, a magnetizing component of current lags the voltage and contributes to reactive power draw, even at no-load. Leakage inductance around windings and stray capacitances also affect reactive power behavior. Under load, the combination of magnetizing current and the load’s own reactive characteristics determines the overall power factor and reactive demand seen by the upstream network.

It performs voltage conversion between generation, transmission, and distribution voltage tiers. By stepping voltage up for bulk transmission and down for end users, transformers reduce losses and ensure safe utilization.

In a power plant the generator step up transformer connects the generator stator to the high voltage transmission network. It raises generator voltage to transmission levels which minimizes current and line losses for long distance transport. These transformers must handle high short circuit currents, continuous high load and frequent grid disturbances. Auxiliary transformers in the plant also step down voltage for station service loads such as pumps, cooling systems and control power, ensuring reliable operation of all plant subsystems.

High-power transformers feed megawatt-scale loads such as smelters, arc furnaces, refineries, chemical plants, mining equipment, and rolling mills.

A drain valve allows controlled removal of insulating oil during sampling, maintenance or tank emptying.

The CMM-0.6 transformer oil purification unit removes moisture, gases, and solid impurities. Standard delivery time is 6-8 weeks. The system is shipped fully assembled, tested, and ready for operation. Pricing and transport options to Germany will be included.

GlobeCore manufactures low-frequency transformer drying systems for factory use. These systems provide uniform heating of windings and cores using low-frequency current technology. Technical parameters and pricing will be provided upon request.