Feiwibility of utilization of cold switches for qriericli protection of very large sc niitgnets (e.g., for SMES) is considered. The scheme of quench protection of large SMES is suggested. The necessary uumber of sections can be easily evaluated. Destructive sc switches seem to be the best solution. The switch has to be properely desigired to avoid arcing and to offer a possibility to c l i a i i g c the destructive elements in a reasonable time without warming up of large portions of the winding. A suggcstioii is also made to make use of the temperature depeiidence of the electrical resisttirice of the driinp resistor. A proper choice of its mass can result iii 25 percents decrease of a quench load.

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