TMGSU

TMGSU power transformers are power oil-filled step-down three-phase three-winding transformers with a balancing device, with capacities from 10 to 250 kVA and voltage up to 10 kV for indoor and outdoor installation, designed for use in power systems with uneven phase loading, ensuring the maintenance of phase voltage symmetry. They are suitable for indoor and outdoor installation and are developed for the needs of the national economy.

Design Features

TMGSU transformers have a number of design features that ensure their reliability and efficiency.

• The transformers have a rectangular tank shape with corrugated walls for efficient cooling.
• The tank is equipped with an oil filling tap, an oil drain plug, a tap for taking samples, and a grounding bolt.
• The active part includes windings, a high-voltage switch, and a magnetic core made of high-quality electrical steel cut on a “GEORG” line and stacked using the “Step-Lap” scheme.
• Removable HV and LV bushings for outdoor installation have porcelain insulators and are located on the transformer lid. Upon customer request, the bushings can be equipped with contact terminals.
• The transformer is equipped with an oil level indicator for monitoring the oil level.
• A thermometer is provided for measuring the temperature of the upper oil layers, installed on the tank lid.
• The corrugated tank walls provide compensation for temperature fluctuations in the oil volume.

Advantages of Using TMGSU Transformers

TMGSU transformers have a number of advantages that make them effective for various power systems:

• Maintenance of voltage symmetry: Specially designed for systems with uneven loading, they ensure stable and high-quality electrical energy, reducing voltage imbalances.
• Reliability and durability: The use of quality materials (electrical steel, “Step-Lap” stacking) and efficient cooling (corrugated walls) ensure a long service life.
• Voltage regulation: Equipped with switches for step voltage regulation (±2×2.5%), which allows adapting the transformer to different conditions.
• Efficient cooling: Natural oil and air circulation, as well as corrugated tank walls, provide effective heat dissipation.

Areas of Application

Thanks to their versatility and reliability, TMGSU transformers are widely used in various industries.

• Industry: Powering equipment at metallurgical, chemical, machine-building, and mining enterprises (furnaces, stands, electrolyzers, machine tools, pumps).
• Energy: Used at substations, wind/solar power plants, and thermal power plants for energy distribution and parameter matching (distribution, imbalance compensation, powering auxiliary equipment).
• Infrastructure: Providing power supply to hospitals, shopping centers, transport facilities, and communication facilities (critical equipment, lighting/ventilation systems, transport systems, data center equipment).
• Agriculture: Powering irrigation systems, pumping stations, grain dryers, equipment for livestock complexes, and greenhouse complexes (pumps, lighting/heating systems).

Compliance with Standards

The production of TMGSU series transformers is carried out in accordance with international and national regulations. This guarantees the safety, quality, and durability of the equipment.

• International standards: Compliance with IEC 60076 standards.
• National standards: Compliance with GOST R 52719-2007.
• Technical specifications: Production according to TU U31.1-00213440-024-2006.
• Production certification: Certification according to ISO 9001:2008 standard.

For more detailed information and consultations regarding the selection and purchase of TMGSU type transformers, contact the manager of Ukrelektroaparat LLC or mail to zakaz@uea.km.ua