Aiming at the engineering design of DC ice-melting device parameters in substations,the differences between calculation formulas of ice-melting current in different standards and specifications are compared and analyzed.Taking the parameter design of DC ice-melting device in a 500 kV substation for example,the calculation results of minimum ice-melting current,maximum ice-melting current,one-hour ice-melting current,DC ice-melting voltage drop,DC ice-melting device capacity and other parameters are given.Suggestions for the selection of parameter design formula of ice-melting device in practical engineering are proposed.
DC ice-melting deviceice-melting currentice-melting voltagespecification differences
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