Transformator-Teknik industrial transformers and power equipment

Industrial dry-type transformers, DC power supplies, and inductive components from Transformator-Teknik deliver dependable electrical performance across automation networks and control cabinets.

Single-phase transformers ENL, EPD, EPK, and SP series

Single-phase dry-type transformers by Transformator-Teknik span ratings from 7 VA to 20000 VA. Open-frame ENL units alongside enclosed EPD, EPK, and SP configurations provide dependable power distribution for control panels, switchgear, and plant automation.

Open-frame ENL series rated 7–1500 VA for internal control panel installation
Enclosed EPD series with Class II insulation rated from 60 VA up to 440 VA
Wall-mounted and floor-standing EPK models in IP21 enclosures up to 20 kVA
Protective isolation SP units in rugged IP44 enclosures rated up to 600 VA

Three-phase industrial transformers TO, TPK, and TSP series

Three-phase dry-type transformers from Transformator-Teknik handle industrial ratings from 100 VA to 50 kVA. The portfolio comprises open-frame TO units for distribution switchboards, wall and floor TPK enclosures with IP21 protection, and heavy-duty TSP models.

Open-frame three-phase TO series spanning power ratings from 100 VA to 50 kVA
Wall-mounted TPK units with IP21 protection rated for 1000 VA through 8000 VA
Floor-mounted heavy-duty TPK power modules in IP21 enclosures rated 10–40 kVA
Industrial-grade TSP transformers engineered in IP54 enclosures up to 50 kVA

PCB-mounted transformers EI, UI, ENP, and ELP series

PCB-mount transformers developed by Transformator-Teknik provide ratings from 0.5 VA to 50 VA. The standard portfolio includes EI and UI laminated designs, fully encapsulated ENP plastic modules, and low-profile ELP components built to stringent electrical norms.

Standard EI and UI core configurations rated 0.5–50 VA for circuit boards
Resin-encapsulated ENP series housed in flame-retardant plastic housings
Low-profile ELP series engineered for compact electronic control panels
Compliance with international standards including Semko, Demko, and UL

Toroidal power transformers and RTR series

Toroidal transformers engineered by Transformator-Teknik deliver reduced weight, compact volume, and minimal stray magnetic leakage fields. Supplied with flying leads, mounting hardware including steel discs with rubber pads, or center potted resin core filling.

Minimal stray magnetic field emission suitable for sensitive instrumentation
Substantial weight and volume reduction compared to standard laminated cores
Supplied with flexible rubber buffer discs and heavy-duty steel clamp washer
Optional solid resin potting inside the central mounting aperture of core

Power supplies and rectifier units EOL, TOLG, and SPLG

Power supply systems and rectifier units from Transformator-Teknik are tailored for industrial control logic, sensors, and switching components. The portfolio encompasses open single-phase EOL assemblies, three-phase TOLG rectifiers, and enclosed IP44 SPLG power modules.

Single-phase open-frame EOL power supply units for control cabinet racks
Three-phase TOLG rectifier units built for demanding industrial DC loads
Enclosed SPLG power modules engineered in robust IP44 protective housings
Low-current TLG and TLGD series featuring integrated output ripple filtering

High-frequency transformers and industrial chokes

High-frequency transformers and inductive chokes by Transformator-Teknik are custom-engineered for modern switch-mode converters. Optimized ferrite core topologies guarantee efficient thermal dissipation and high electromagnetic compatibility across variable-speed drives.

Custom-engineered ferrite high-frequency transformers to client blueprints
Smoothing and filtering chokes built to suppress harmonic current ripple
Optimized winding conductor geometry to mitigate high-frequency skin losses
Line input reactors protecting variable frequency drives and supply grids

Design principles and selection criteria for single-phase dry transformers

Single-phase dry-type transformers engineered by Transformator-Teknik deliver reliable galvanic separation and voltage stepping across automation systems.

Open-frame models in the ENL series are optimized for installation directly within ventilated control cabinets, allowing unhindered convective cooling of the magnetic core.

Enclosed models within the EPK family provide IP21 protection for wall or floor mounting in light industrial environments, while SP units in IP44 enclosures withstand dust and moisture.

Selecting the correct model requires calculating total load in volt-amperes, evaluating contactor inrush peaks, and verifying allowable primary voltage swings on the mains line.

Calculation and operating parameters of three-phase power transformers

Three-phase industrial transformers from Transformator-Teknik serve medium and high-power distribution requirements across manufacturing facilities.

Standard TO open units allow efficient integration inside motor control centers, whereas enclosed TPK and TSP configurations protect transformer windings against mechanical impact and airborne contaminants.

Utilizing grain-oriented electrical silicon steel laminations minimizes iron losses and reduces operating heat build-up under continuous full-load duties. Proper thermal calculation and conductor sizing ensure stable phase voltages during motor starting and heavy transient switching events.

Mounting guidelines and thermal management for PCB transformers

Compact PCB-mount transformers in the ENP and ELP series provide localized power conversion for embedded microcontrollers, sensor interfaces, and communication nodes.

ENP units feature flame-retardant polymer housings filled under vacuum with high-grade polyurethane or epoxy potting resin, eliminating internal voids and environmental humidity penetration.

Low-profile ELP components minimize vertical clearance, allowing dense stacking within standardized electronic enclosures. Standardized electrical clearances and insulation ratings exceeding 4000 V guarantee worker safety and compliance with international electrical standards.

Toroidal core technology for low electromagnetic interference applications

Toroidal power transformers from Transformator-Teknik utilize continuously wound grain-oriented steel ribbons without air gaps. This circular geometry confines the magnetic flux tightly within the core ring, virtually eliminating external stray magnetic fields and audible hum.

Consequently, toroidal assemblies are the preferred choice in sensitive measuring systems, medical equipment, and audio electronics where electrical noise must be prevented.

The inherent mechanical efficiency of the toroidal structure yields significant weight and volume reductions compared with conventional rectangular laminated transformers.

Industrial DC power supply topologies and rectifier module integration

Rectifier units and regulated DC power assemblies from Transformator-Teknik convert single-phase and three-phase AC plant feeds into stable direct current.

Three-phase bridge rectifiers in the TOLG line produce low output ripple even without bulky electrolytic capacitor banks, ensuring high reliability for inductive loads like contactor coils, magnetic brakes, and industrial relays.

Protective IP44 housings on SPLG units shield sensitive bridge diodes from industrial coolant mist. Built-in varistor surge suppressors and thermal cutoffs protect the power electronics from voltage transients and overheating.

Custom high-frequency magnetic components and line filtering chokes

Modern switch-mode power converters and variable-speed motor drives demand specialized magnetic components capable of operating efficiently at high frequencies.

Transformator-Teknik designs custom ferrite transformers and inductive chokes using advanced manganese-zinc and nickel-zinc magnetic materials. Employing multi-strand litz wire conductors reduces high-frequency skin effect resistance and proximity losses.

Line filtering reactors with precision air gaps maintain inductance linearity under heavy peak currents, smoothing ripple currents and protecting inverter switching transistors from steep voltage gradients.

Transformator-Teknik and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Transformator-Teknik and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.