Tallinna Elektrotehnika Tehas Estel AS products

VIU series converters serve for converting single phase AC with 50 Hz frequency to direct current for the power supply of DC traction motors in the traction mode and for converting DC to single phase AC with 50 Hz frequency in regenerative braking mode of the electric locomotive. The VIU–4000M-UHL2 is suitable for 2ES5K, 3ES5K, and E5K locomotives. The VIU–5600-UHL2 is suitable for EP1M and EP1P locomotives.

V-OPED Series rectifiers are designed to supply rectified current to traction motors of motor car of AC multi-unit electric train.

The converters of RTA series are designed to convert 3kV DC voltage contact system into single-phased and three-phased voltage with a frequency of 50 Hz to supply energy consumers (engines of slave machine, air conditioner, volume compressor) and to charge storage batteries.

Combine Diesel Ground Power Unit  is designed to supply all type of aircraft and helicopter during preflight maintenance at the airport. DGPU consists of a 50 Hz diesel generator set, 400 Hz frequency converter and 28 VDC rectifier. DGPU allows supplying any types of loads with alternating voltage 3×400 / 230 V with a frequency of 50 Hz, alternating voltage 3×200 / 115 V with a frequency of 400 Hz and a constant voltage of 28 VDC.

Our battery-powered GPU FCA-B Series is ideally designed to supply all types of aircraft with AC and DC voltage for flight preparation and maintenance. Mobility, zero emission and a low noise level allow it to be used in multiple locations with stable output parameters – from hangars to gates and aprons.

Combined power unit FCA-90/AR-600A consists of frequency converter 400 Hz and 28 V rectifier. The unit is designed to supply aircafts and helicopters during preflight maintenance at the airport. It can also be used as a power unit of test benches, hangars and aircraft manufacturing plants. Can be manufactured both in standard complete set and according to Customer’s special requirements and adjustments. Could be manufactured in mobile, stationary and aerobridgeversions.

Combined power unit FCA/AR consists of 400 Hz (5-250 kWt) converter and 28 ? (100-1200 ?)DC rectifier. Used as aircraft power source in open sea conditions. Combined frequency converter can be produced in standard set as well as according to special customer requirements.

Small ground power units are used for supplying three-phase alternating current with a frequency of 400 Hz and a voltage of 3×200/115 V for centralized supply of aviation industry workshops and test facilities. Can be manufactured both in standard complete set and also in accordance to Customer’s special requirements and adjustments.

FCA-90-12HC is intended to supply of airplane’s on-board power system by 3-phase alternating current with 400 Hz frequency and 115/200 VAC voltage during preflight preparation and technical maintenance. Consists of static frequency converter FCA-90-12H and automated cable winding device ACW-02. Each device is functionally complete and can be joined with each other.  Can be manufactured in both standard complete set and also by Client’s special requirements and adjustments.

Airport rectifiers are designed to supply aircrafts and helicopters during preflight maintenance at the airport. They can also be used as a power unit of test benches, hangars and aircraft manufacturing plants. AR is intended to supply all types of aircrafts and helicopters with 28,0 /28,5 V. Could be manufactured in a mobile and stationary versions.