Опис
Autotransformers of the LATR-1.25 type, single-phase and intended for smooth regulation of alternating current voltage with a frequency of 50 (60) Hz for various electrical works. Autotransformers have a built-in three-digit LED output voltage indicator: ЛАТР-1, 25-И.
Autotransformers are manufactured in accordance with the requirements of the Technical Regulations for Low-Voltage Electrical Equipment (hereinafter referred to as the Technical Regulations), approved by the Cabinet of Ministers of Ukraine Resolution dated 12.16.2015 No. DSTU 3225-95 Isolation transformers and safe isolation transformers. Technical requirements.
Technical characteristics
Nominal primary voltage of autotransformers (220±4.4) V, frequency (50±0.5) Hz, (60±0.5) Hz.
Limits of secondary voltage adjustment at nominal primary voltage and nominal load from 0 to (250±12.5) V.
The permissible initial voltage jump is no more than 5 V.
The measuring range of the output voltage indicator of LATR-1, 25-I autotransformers is from 10 V to 265 V.
The value of the absolute measurement error of the output voltage indicator of LATR-1, 25-Y autotransformers does not exceed 2 V.
The maximum load current of autotransformers LATR-1.25, LATR-1, 25-I is 5 A.
The no-load current of autotransformers is no more than 0.5 A.
K.K.D of autotransformers is not less than 94%.
It is allowed to operate autotransformers at an altitude of up to 2000 m above sea level, however, when operating autotransformers at an altitude of more than 1000 m, the maximum load current must be reduced by 2.5% for every 500 m.
The position of autotransformers during operation in space is arbitrary, while operation in conditions of vibrations and shaking is unacceptable.
The operating mode at the maximum load current is no more than 1 hour, after which the maximum load current must be reduced by 20%. Finding the current collector in an unchanged position is allowed for no more than 2 hours.
Degree of protection of autotransformers IR20 according to DSTU EN 60529:2014 Degrees of protection provided by casings (Code IR) .
The full established service life of autotransformers should be at least 12 years.
The average earnings per refusal is 6,250 hours
The weight of autotransformers is no more than 8 kg.
Overall dimensions of autotransformers: 235 mm x 200 mm x 130 mm
