Naha trafo panyalindungan sakedapan kedah nyingkahan tegangan-low pondok-circuit ayeuna?

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Ieu utamana mertimbangkeun selektivitas aksi panyalindungan relay trafo. Perlindungan putus gancang di luhur Voltaseu samping trafo utamana dipaké pikeun ngajaga faults éksternal trafo nu. Dina setting, lamun arus circuit pondok maksimum dina low Voltaseu sisi trafo teu dihindari, nilai arus circuit pondok dina rentang teu jauh ti outlet di sisi tegangan low teu robah teuing jeung dasarna sarua, nu bakal dilegakeun lingkup panyalindungan putus gancang dina tegangan tinggi. sisi trafo ka garis kaluar-tegangan low, sahingga leungit selectivity Saatos leungitna selectivity, panyalindungan leuwih dipercaya, tapi brings kasulitan pikeun idin. Salaku conto, seueur taman industri ayeuna dilengkepan kamar distribusi umum 10KV (bar beus 10KV + pemutus sirkuit kaluar), sareng unggal bengkel dilengkepan kamar distribusi tegangan rendah (kabinét jaringan cincin + trafo). Lamun circuit breaker teu luput arus circuit pondok maksimum di sisi-tegangan low tina trafo, éta bakal ngabalukarkeun tegangan low switch utama, (ring jaringan kabinét beban switch sekering), sarta tegangan tinggi circuit breaker meta, nu bakal mawa kasulitan pikeun operasi