Tallinna Elektrotehnika Tehas Estel AS products

TET Estel offers a wide range of different types of innovative high quality products in the field of underground distribution systems. The PIT-system is a device for storing power cables, as well as other networks for supplying power, water and compressed air. Our retractable PIT-systems: HATCH PIT-systems and POP-UP PIT systems are equipped with a unique patented climate control or microclimate control system. This system provides long-term reliable storage and stable operation of all electrical and electronic equipment underground. All PIT systems comply with the EN124 standard for F900 loads. As underfloor units are designed and produced for long life under extreme weather conditions and environmental influences. All PIT SYSTEMS are built and equipped exclusively to customer according specifications.

This device is intended for winding and unwinding of cable as well as its compact storage.  The specified type of device can be equipped with an electromagnetic clutch, which in turn, facilitates carrying out cable unwinding operations in manual mode if the electric drive becomes faulty. Capacity of the cable drum: 22m (in basic configuration), 30, 40m (as per customer’s requirement). Automatic cable winding device is operated using remote control panel or from diagnostics panel.

For hardening, brazing, weld deposition. Purpose: Transistor (IGBT) induction systems FCI series have been designed for operation in high frequency induction hardening machines and automated lines in the process of surface (HFC) hardening. Converter universal circuit permits to use it for other works as well – brazing, weld deposition, metal melting with use of different load circuits. FCI converters have high efficiency and reliability due to usage of new IGBT modules. Operation mode: constant or intermittent duty. All this provides safety, ease of use and energy saving.

Tempering machine is designed for cylinder parts tempering (shafts, gears, star wheels) with continuous-gradual mode (with part rotation and vertical movement) or simultaneously.