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Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device

A technology of ultra-high power and power supply devices, applied in emergency protection circuit devices, reactive power adjustment/elimination/compensation, electrical components, etc., can solve problems such as low active power, easy overload, and burning of smelting transformers

Active Publication Date: 2012-11-07
平罗县滨河碳化硅制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing power supply device converts the electric energy provided by the high-voltage power grid into heat energy for smelting silicon carbide. Overload phenomenon, which leads to the burning of the smelting transformer

Method used

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  • Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device
  • Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device

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Embodiment Construction

[0012] Such as figure 1 As shown, the silicon carbide smelting device 10 includes a power supply device 20 for an ultra-high-power silicon carbide smelting furnace and a silicon carbide smelting furnace 30 .

[0013] The power supply device 20 for an ultra-high-power silicon carbide smelting furnace includes a first smelting transformer 21, a first rectifier cabinet 23, a second smelting transformer 22, a second rectifier cabinet 24, a control unit 28, a first switch 25, a second switch 26 and a second switch 26. Three switches 27 . In this embodiment, the rated capacity of the first smelting transformer 21 and the second smelting transformer 22 is the same, the rated capacity of the first smelting transformer 21 and the second smelting transformer 22 is 15800 kVA, the primary side is 35 kV, 41 stage on-load voltage regulation, the connection mode of the first smelting transformer 21 and the second smelting transformer 22 is three-phase bridge in-phase and anti-parallel conne...

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PUM

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Abstract

The invention relates to a power supply device for an ultrahigh-power silicon carbide smelting furnace, which comprises a first smelting transformer, a first rectifying cabinet, a second smelting transformer, a second rectifying cabinet, a control unit, a first switch, a second switch and a third switch. The first smelting transformer is electrically connected with the first rectifying cabinet, and the first rectifying cabinet is also electrically connected with the first switch, the second switch and the silicon carbide smelting furnace. The second smelting transformer is electrically connected with the second rectifying cabinet, and the second rectifying cabinet is also electrically connected with the first switch, the third switch and the silicon carbide smelting furnace. The control unit is respectively electrically connected with the first switch, the second switch and the third switch. The control unit is used for controlling the first switch to be switched on, controlling the second switch and the third switch to be switched off to enable the first rectifying cabinet and the second rectifying cabinet to be connected in series, controlling the first switch to be switched offand controlling the second switch and the third switch to be switched on to enable the first rectifying cabinet and the second rectifying cabinet to be connected in parallel. The invention also provides a silicon carbide smelting device.

Description

Technical field: [0001] The invention relates to the technical field of silicon carbide smelting, in particular to a power supply device for an ultra-high-power silicon carbide smelting furnace and a silicon carbide smelting device. Background technique: [0002] The existing silicon carbide smelting device includes a power supply device and a silicon carbide smelting furnace. Among them, the power supply device includes a smelting transformer and a rectifier cabinet. The smelting transformer is used to step down the alternating current provided by the high-voltage power grid to obtain alternating current with a predetermined voltage value; the rectifier cabinet is used to convert the stepped-down alternating current provided by the smelting transformer into direct current suitable for the silicon carbide smelting furnace, and The direct current is supplied to the silicon carbide smelting furnace; the silicon carbide smelting furnace uses direct current to smelt the mixture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18H02H7/04C01B31/36
CPCY02E40/30Y02P20/10
Inventor 张海波
Owner 平罗县滨河碳化硅制品有限公司
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