NOLP-EC voltage transformers of M1 size with safety device for voltage classes up to 10 kV are designed for operation in power supply systems with isolated neutral, as well as with neutral grounded through arc-extinguishing reactor or resistor, in measurement, protection, automation, control circuits, signalling of alternating current of 50 and 60 Hz frequency at power plants of all types, including nuclear power plants, as well as at power substations of power systems, industrial and agricultural facilities as part of complete switchgears, CSR chambers, current conduits of generator voltage and auxiliary voltage of power plants and substations.Climatic design of voltage transformers "U", "UHL" or "T", placement categories 2 or 3 GOST 15150-69 and GOST 15543.1-89.
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