Earthed voltage transformers ZNOL-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 arc suppression reactor or resistor, in measurement, protection, automation, control, signalling circuits of alternating current frequency 50 and 60 Hz, rated voltage from 3 to 10 kV at power plants of all types, including nuclear power plants, as well as at power substations of power systems, industrial and agricultural facilities, as well as for export.Voltage transformers are designed for wide application in complete switchgears of internal and external installation, CSR chambers, current conduits of generator voltage and auxiliary voltage of power stations and substations.Transformers ZNOL-EC can be used for control of electric power quality indicators (EQI).Climatic design of transformers "U", "UHL" or "T"
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