Tatahan MCCB (untuk TNB submission)

Data Beban
1. Kadar MSB = 150A TPN
2. Beban Sambungan = 122.76kW
3. Kehendak Maksima = 77.74kW
4. Nisbah Transformer Arus = 150/5A

Cadangan Tatahan MCCB
1. Arus Membawa Berterusan = 127.50A TP (77.74kW x 1.64)
2. Arus Lebihan
a) Melantik 60 Saat = 140.24A TP (127.50 x 1.1)
b) Melantik 5 Saat = 153.00A TP (127.50 x 1.2)
3. Arus Bocor Ke Bumi = 10% Dari Nisbah Transformer Arus