Ikhabhinethi yokusabalalisa i-GGD yohlobo lwe-AC low-voltage ilungele izitshalo zamandla, iziteshi ezincane, izimboni namabhizinisi ezimayini nabanye abasebenzisi bamandla e-AC 50Hz, i-voltage elinganiselwe engu-380V, ikalwe ngo-1000A kuya ku-3150A uhlelo lokusabalalisa lwamanje, njengamandla, ukukhanyisa kanye nemishini yokusabalalisa amandla kagesi. ukuguqulwa, ukusatshalaliswa, ukulawula.