Transformers are designed to supply electrical measuring instruments, protection and signalling circuits in AC electrical installations of 50 or 60 Hz frequency.
Transformers are manufactured in climatic version "UHL" and "T" category of placement 1 according to GOST 15150.
Air temperature values during operation - from minus 60°C to plus 50°C for "UHL1" version and from minus 10°C to plus 55°C for "T1" version. Leakage path length III according to GOST 9920-89.
Transformers do not have their own protection against resonance phenomena and switching overvoltages in the network.
The operating position is vertical.
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