Voltage transformers of three-phase anti-resonance group NALI-EC M4 for voltage classes 3; 6; 10 kV with cast insulation are designed for operation in power supply systems with isolated neutral, as well as with neutral grounded through an arc suppression reactor or resistor, in measurement, protection, automation, control, signalling circuits of alternating current with frequency 50 and 60 Hz, rated voltage from 3 to 10 kV at power plants of all types, including nuclear power plants, electrical substations, high-voltage lines, as well as for export.Voltage transformers of three-phase anti-resonance group NALI-EC are installed in complete switchgears of internal and external installation, CSR chambers, current conduits of generator voltage and auxiliary voltage of power plants and substations.Climatic execution "U", "UHL" or "T", placement categories 2, 2.1 or 3, 3.1 GOST 15150-69 and GOST 15543.1-89.
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