JPH0290629U - - Google Patents
Info
- Publication number
- JPH0290629U JPH0290629U JP17009388U JP17009388U JPH0290629U JP H0290629 U JPH0290629 U JP H0290629U JP 17009388 U JP17009388 U JP 17009388U JP 17009388 U JP17009388 U JP 17009388U JP H0290629 U JPH0290629 U JP H0290629U
- Authority
- JP
- Japan
- Prior art keywords
- melting furnace
- thyristor
- power
- pulse control
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Glass Melting And Manufacturing (AREA)
Description
第１図は、本考案の実施例を示す。第２図は、
第１図ゲートパルス発生回路における各部信号波
形を示す。第３図は、単相純逆並列接続サイリス
タによる発生高調波成分を示す。
１……交流電源、２……サイリスタ、３……タ
ツプ付変圧器、４……タツプチエンジヤー、５…
…溶融炉、５１……負荷、５２，５３……電極、
６……ＣＴ、７，８……ＰＴ、９……電力変換器
、１０……基準電力信号、１１……電力調節器、
１２……ゲートパルス発生回路、１３……タツプ
セレクトコントロール回路、１４……同期電源回
路。
FIG. 1 shows an embodiment of the invention. Figure 2 shows
FIG. 1 shows signal waveforms at various parts in the gate pulse generation circuit. FIG. 3 shows harmonic components generated by a single-phase pure anti-parallel connected thyristor. 1...AC power supply, 2...Thyristor, 3...Tap transformer, 4...Tap engineer, 5...
...melting furnace, 51...load, 52, 53...electrode,
6...CT, 7,8...PT, 9...Power converter, 10...Reference power signal, 11...Power regulator,
12... Gate pulse generation circuit, 13... Tap select control circuit, 14... Synchronous power supply circuit.
Claims (1)
されたサイリスタを介し、前記溶融炉に接続され
るタツプ付変圧器によつて電力制御する装置であ
つて、前記変圧器のタツプ切換えの検出が、前記
溶融炉負荷電力信号と基準電力信号の差により定
まるサイリスタに対するパルス制御位相角が、前
記サイリスタに対するパルス制御位相角にもたせ
た位相制限角の上限、又は下限に合致したことに
よつて行われることを特徴とする溶融炉の電力制
御装置。 A device for controlling power of a melting furnace whose load changes by one order of magnitude or more by a tap transformer connected to the melting furnace via a thyristor connected to a power source, the device comprising: detecting tap switching of the transformer; However, the pulse control phase angle for the thyristor determined by the difference between the melting furnace load power signal and the reference power signal matches the upper limit or lower limit of the phase limit angle set for the pulse control phase angle for the thyristor. A power control device for a melting furnace, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17009388U JPH0619538Y2 (en) | 1988-12-28 | 1988-12-28 | Power control device for melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17009388U JPH0619538Y2 (en) | 1988-12-28 | 1988-12-28 | Power control device for melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0290629U true JPH0290629U (en) | 1990-07-18 |
| JPH0619538Y2 JPH0619538Y2 (en) | 1994-05-25 |
Family
ID=31460729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17009388U Expired - Lifetime JPH0619538Y2 (en) | 1988-12-28 | 1988-12-28 | Power control device for melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619538Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013165799A (en) * | 2012-02-15 | 2013-08-29 | Frontier Engineering Co Ltd | Heater |
| CN112592030A (en) * | 2019-10-02 | 2021-04-02 | Ａｇｃ株式会社 | Glass melting method, glass melting furnace, and glass manufacturing method |
-
1988
- 1988-12-28 JP JP17009388U patent/JPH0619538Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013165799A (en) * | 2012-02-15 | 2013-08-29 | Frontier Engineering Co Ltd | Heater |
| CN112592030A (en) * | 2019-10-02 | 2021-04-02 | Ａｇｃ株式会社 | Glass melting method, glass melting furnace, and glass manufacturing method |
| JP2021059459A (en) * | 2019-10-02 | 2021-04-15 | Ａｇｃ株式会社 | Glass melting method, glass melting furnace, and manufacturing method of glass |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619538Y2 (en) | 1994-05-25 |
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