Опис
Three-phase LATR-3×2.5 type laboratory autotransformer, with digital indication of the output phase voltage, is intended for smooth voltage regulation without breaking the circuit in a three-phase 380 V network with a frequency of 50 (60) Hz when performing electrical engineering work.
The autotransformer is manufactured in accordance with the requirements of the Technical Regulations of Low-Voltage Electrical Equipment (hereinafter referred to as the Technical Regulations), approved by the Resolution of the Cabinet of Ministers of Ukraine dated 16.12.2015 No. 1067, DSTU EN 61558-2-13:2015 Safety of transformers, reactors, power supply units and similar devices with a voltage up to 1100 V inclusive. Part 2-13 Additional requirements for autotransformers and power supplies containing autotransformers and their testing.
Technical characteristics
Nominal primary phase voltage of autotransformers (220±4.4) V, frequency (50±0.5) Hz, (60±0.5) Hz.
Limits of adjustment of the output phase voltage at a nominal input phase voltage of 220 V at a nominal load from 0 to 250 V.
The value of the absolute error of the indication of the output voltage of the autotransformer does not exceed 2 V.
The maximum load current of the autotransformer is 10 A.
The no-load current of the autotransformer is no more than 0.5 A K.K.D
of autotransformers is not less than 94%.
The full established service life of autotransformers is at least 12 years.
The average earnings per refusal is 6,250 hours.
The weight of autotransformers is no more than 25 kg.
The overall and installation dimensions of autotransformers are shown in the figure
