Transformers oil transformers of TMGF series are designed for operation in power grids with voltage of 6 or 10 kV in open electrical installations under conditions of moderate climate (execution U1 and UHL1 according to GOST 15150-69) and serve for reduction of high voltage of supplying power network to the established level of consumption.
Rated power: from 400 to 1000 kVA.
Rated HV voltage: 6, 10 kV
Rated LV voltage: 0,4 kV
Winding connection schemes and groups: U/Un-0; U/Zn-11; D/Un-11.
Different combinations of voltages and connection schemes of HV and LV windings are possible upon customer's request.
Operating frequency: 50 Hz
Voltage regulation is carried out on the HV side by means of a five-stage voltage switch PBV (switch without excitation): U±2x2x2.5 %
Climatic execution: ?1 (from -45°C to +40°C), ???1 (from -60°C to +40°C) (according to GOST 15150-69).
Warranty on supplied products: 3 years from the date of commissioning, but not more than 4 years from the date of shipment
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