The series induction melting furnace adopts a set of intermediate frequency power to supply power to two electric furnaces respectively. The power of the intelligent intermediate frequency power can be arbitrarily distributed between the two furnace bodies, so that one electric furnace can melt or heat the other furnace body.
Main process parameters of 0.5 ton series induction melting furnace ( new 2020 )
in frequency sense should melt Refine furnace | Rated Capacity | t | 0.5 | |||
Full large capacity | t | 1 | ||||
Tapping temperature | ℃ | 1450 ~ 1800 | ||||
Melting power consumption (hot furnace, molten steel) | kwh / t | In the case of pure melting, 570 ± 5%. | ||||
Melting power consumption (hot furnace, hot metal) | kwh / t | In the case of pure melting, 560 ± 5%. | ||||
Melting rate (chemical molten steel) | h / t | 0.9 | ||||
cold but water | Influent flow | m3 / h | ≥40 | |||
Inlet water pressure | MPa | 0.3 | ||||
Inlet water temperature | ℃ | ≤32 | ||||
Return water temperature | ℃ | ≤52 | ||||
Tilting method | Hydraulic tilt | |||||
whole flow change Press Device | Product number | ZS-type | ||||
Voltage combination | 10KV / 380V / 380V Δ / Y double winding on the secondary side, leading out from the star point | |||||
Transformer capacity | KVA | 400kva (two shared) | ||||
Primary voltage | KV | 10 ± 5% KV | ||||
Secondary voltage | V | 380 × 2 | ||||
Phase | 3 phases on primary side ; 6 phases on secondary side connected to IF power cabinet | |||||
frequency | HZ | 50 | ||||
Connection group | DdOY11 (secondary line voltage phase difference 30 °) | |||||
Short-circuit impedance | ≥ | 9% | ||||
cooling method | ONAN, cooling medium: No. 25 transformer oil | |||||
Pressure regulation method | Automatic non-excitation voltage regulation, | |||||
effectiveness | ≥ | 98%, | ||||
Implementation standards | JB / T8636-1997 "Power Transformer" | |||||
Rectifier transformer The rectifier transformer is used to reduce the primary high voltage to the input voltage suitable for the intermediate frequency power supply. The equipment uses a special high-impedance oil-immersed self-cooling rectifier transformer, and its model is ZS series. The transformer uses 10KV for the primary voltage and 380V for the secondary voltage. The rectifier transformer is equipped with a gas relay and an oil temperature relay meter, which can be interlocked with the high voltage cabinet. When the transformer has gas or oil temperature exceeds the standard, it can automatically cut off the high voltage input and issue an alarm. | ||||||
in frequency Electricity source | rated power | KW | 400 | |||
DC voltage | V | 1024 | ||||
DC | A | 488 | ||||
Number of rectified pulses | pulse | 12 | ||||
cold but water | Influent flow | m3 / h | ≥15 | |||
Inlet water pressure | MPa | 0.25 | ||||
Inlet water temperature | ℃ | ≤32 | ||||
Return water temperature | ℃ | ≤42 | ||||
IF voltage | V | 2400 | ||||
IF frequency | Hz | 800 adjustable | ||||
Power factor | COSφ | Any power usage ≥ 0.95 | ||||
Inversion form | Series inverter | |||||
noise | dB | 85dB | ||||
Startup success rate | 100% | |||||