NOL-EC voltage transformers of M3 size for voltage classes up to 24 kV are designed for operation in power supply systems with isolated neutral, as well as with neutral grounded through arc suppression reactor or resistor, in measurement, protection, automation, control, signalling circuits of alternating current of frequency 50 and 60 Hz at power plants of all types, including nuclear power plants, as well as at power substations of power systems, industrial and agricultural facilities as a part of complete switchgears, chambers.
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