TC(Z)NO series dry power transformers with capacities from 250 to 1600 kV∙A and voltage up to 10 kV, manufactured by LLC “UKRELEKTROAPARAT”, are a modern solution for electrical energy conversion. These three-phase double-winding general-purpose transformers are characterized by high reliability and safety. They are used in various sectors of the national economy and industry, designed for converting electrical energy in three-phase AC networks with a frequency of 50 Hz. The transformers are installed in industrial premises and public buildings that have increased requirements for fire safety, explosion protection, and environmental friendliness.
Design Features
TC(Z)NO series transformers have a well-thought-out design that ensures their reliability and durability. The main components are the magnetic core, windings, leads, protective casing, and cooling system. Each element is made of high-quality materials using modern technologies.
- Transformers consist of a magnetic core, windings placed on the magnetic core (active part), leads (bushings, LV and HV busbars), a protective casing, and a cooling system.
- Special cutting on a «GEORG» line and magnetic core stacking according to the «Step-Lap» scheme are used.
- The magnetic core assembly is carried out using bandages, tie rods, and special adhesives that provide low no-load losses and noise levels.
- LV windings are made of wire or strip with «NOMEX» insulation; winding material is copper or aluminum.
- HV windings are made of copper wire with «NOMEX» insulation.
- The cooling system operates in automatic mode.
- Temperature control of the windings is carried out using Pt100 temperature sensors and a thermal relay that controls the forced cooling system.
- Access for servicing the transformer and active part is provided through removable panels on the wide side of the transformer.
- The protective casing of the transformer provides protection of personnel from electric shock.
Technical Specifications of TC(Z)NO Transformers
Main parameters of TC(Z)NO type dry transformers
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Capacity, kVA
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No-load losses, W
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Short-circuit losses, W |
Short-circuit voltage, % (at 75 °С)
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Adjusted sound power level (at nominal load) not more than, dB (A)
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|
| at 75 °С | at 145 °С | ||||
| 400 | 820 | 4300 | 5270 | 6 | 68 |
| 630 | 1300 | 5500 | 6740 | 6 | 70 |
| 1000 | 1900 | 8250 | 10115 | 6 | 73 |
| 1250 | 2200 | 10500 | 12870 | 6 | 74 |
| 1600 | 2500 | 12350 | 15140 | 6 | 76 |

Dimensions
Advantages of Using TC(Z)NO Transformers
Choosing TC(Z)NO series power transformers from “UKRELEKTROAPARAT” provides a number of significant advantages, especially important for facilities with increased requirements for safety and reliability. These transformers combine modern technologies and design solutions that ensure their efficiency and durability in operation.
- Increased fire safety and explosion protection compared to oil-filled transformers.
- Environmental friendliness.
- Possibility to increase the nominal capacity by up to 40% without reducing the service life of the transformers.
- Resistance to short-circuit currents due to special winding baking technology.
- Low no-load losses and noise level due to special magnetic core assembly.
- Protection against corrosion due to the use of silicone-organic paints.
- Protection of personnel from electric shock due to the protective casing.
Areas of Application
TC(Z)NO series dry power transformers are versatile equipment that finds wide application in various sectors. Their design features and high safety performance make them an optimal choice for facilities with special requirements.
- Used in various sectors of the national economy and industry.
- Designed for installation in industrial premises.
- Applied in public buildings that have increased requirements for fire safety, explosion protection, and environmental friendliness.
Compliance with Standards
TC(Z)NO series dry power transformers comply with the requirements of modern national and international standards, which confirms their high quality and reliability. The production process is also certified, guaranteeing compliance with quality standards at all stages.
- Transformers comply with IEC-76 standards.
- Comply with DSTU 3076-95 (GOST 30297-95).
- Comply with TU U3.49-00213440-059-2002.
- Production is certified according to ISO 9001:2008.
To order transformers or inquire about more precise characteristics, send an email to zakaz@uea.km.ua, or contact the official representative of LLC “Ukrelectroapparat”.