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Rated capacity of furnace, ton

5

10

20

30

40

50

Maximum speed, up m/min

≥3.5

≥4

≥4.5

≥5

Maximum speed, down m/min

≥2

≥2

≥2.5

≥3

Asymmetrical coefficient for 3-phase impedance, %

≤8 in melting period ； ≤4 in refining period．

Setting range of arc current, %

25---125

Time of transition process, Sec

＜0.2 ( Response time of motor ≤0.1 sec )

Non-sensitivity zone, %

Melting period 2△l≤±10% ;

Refining period 2△l≤±6%