Transformers are designed for installation in open switchgear and are used to supply measurement, automation, signalling and protection circuits in electrical installations of alternating current frequency 50 or 60 Hz in networks with insulated neutral. Long-term operation of transformers as power transformers is allowed.
In this case, the power given by transformers must not exceed the power limit and the load must be connected to the main secondary winding. Transformers are manufactured in climatic version "UHL" and "T" category of placement 1 according to GOST 15150.
The length of the leakage path - III according to GOST 9920.
The operating position is vertical.
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