CN102420459B - Duplicate supply switching apparatus used for float glass production line and method thereof - Google Patents
Duplicate supply switching apparatus used for float glass production line and method thereof Download PDFInfo
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- CN102420459B CN102420459B CN201110401010.2A CN201110401010A CN102420459B CN 102420459 B CN102420459 B CN 102420459B CN 201110401010 A CN201110401010 A CN 201110401010A CN 102420459 B CN102420459 B CN 102420459B
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- power supply
- isolating switch
- circuit breaker
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Abstract
The invention relates to the electric switch technology field, concretely relating to a duplicate supply switching apparatus used for a float glass production line and a method thereof. The method comprises the following steps: (1) when a tin groove transformer on the float glass production line is basically operated at full load, an inlet wire power supply isolation switch HH1 selects a power supply 2, and an inlet wire power supply isolation switch HH2 selects a power supply 4; (2) when the float glass production line transfers to a normal production phase, the inlet wire power supply isolation switch HH1 selects a power supply 1, and the inlet wire power supply isolation switch HH2 selects a power supply 3; (3) when the duplicate supply switching apparatus is in normal operation, both an isolation switch HH3 and an isolation switch HH4 are in an automatic state; (4) if a breaker QL1, a breaker QL2, or a breaker QL3 of the switching apparatus or a controller is failed, the isolation switch HH3 and the isolation switch HH4 are switched to a hand-operated state. Compared with the prior art, in the invention, normal power supply of the float glass production line is ensured, load consumption of the transformer is reduced, thus the transformer is in an economic and reasonable loading section, and a life of the transformer is prolonged.
Description
[technical field]
The present invention relates to electric switch technical field, be specifically related to a kind of double-power supply switching device for floatation glass production line and method.
[background technology]
Because float glass factory overwhelming majority load belongs to a stage load, according to GB50052-2009 < < Code for design of electric power supply systems > > and GB50435-2007 < < plate glass plant design standard > > requirement, a stage load should be powered by dual power supply.
At present, the double-power supply switching device that float glass factory power supply-distribution system end adopts has two kinds of modes: tradition two is entered two and gone out with two to enter one and go out.First, the load character of float glass factory is different from general load, the calculated load of calculated load while being heating-up furnace during much larger than normal produce, this load character makes must consider to meet when configuration transformer the requirement of production and heating-up furnace simultaneously, be the larger of molten tin bath matched transformer, and use seldom while normally producing, while causing molten tin bath transformer normally to produce, load factor is very low.Public work transformer running at full capacity often simultaneously, causes transformer load loss to increase equally, and the life-span reduces.
Secondly, if entering two, tradition two goes out with two to enter a double-power supply switching device body outing and break down and cannot realize normal power supply.
The present invention, by increasing manual/auto converting isolation switch, has avoided the power failure causing due to traditional double power transfer device body fault effectively.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, a kind of energy reasonable distribution tin bath in floating glass production line transformer, public work transformer load are provided, can avoid causing due to double-power supply switching device body fault double-power supply switching device and the method for power failure simultaneously.
For achieving the above object, design a kind of double-power supply switching device for floatation glass production line, comprise isolating switch, circuit breaker, it is characterized in that isolating switch HH1 is provided with three wires, the input of first wire joint forming electric substation, second wire connects the input of public electric substation, isolating switch HH1 moving contact is provided with the 3rd wire, (a) end of connecting breaker QL1, between moving contact and circuit breaker Q L1 (a) end, tap one end is connected isolating switch HH3 and manually holds, isolating switch HH3 moving contact connects first bus, the upper moving contact (b) of moving contact on circuit breaker Q L1 (b) connecting breaker QL2, (a) end of (c) one end connecting breaker QL3 of circuit breaker Q L1, between circuit breaker Q L1 (c) end is held with circuit breaker Q L3 (a), tap one end is connected isolating switch HH3 automatic end, (b) end of circuit breaker Q L3 is provided with a moving contact, the tap terminals of wire between (b) end of connecting breaker QL1 and (b) end of circuit breaker Q L2, (c) end of (c) end connecting breaker QL2 of circuit breaker Q L3, between circuit breaker Q L3 (c) end is held with QL2 (c), tap one end is connected isolating switch HH4 automatic end, isolating switch HH4 moving contact connects second bus, (a) end of circuit breaker Q L2 connects isolating switch HH2 moving contact, between this moving contact and circuit breaker Q L2 (a) end, tap one end is connected isolating switch HH4 and manually holds, on isolating switch HH2, be also provided with two wires, the input of Yi Gen joint forming electric substation, another root connects the input of public electric substation.
The method step that is used for the double-power supply switching device of floatation glass production line: (1) is when the floatation glass production line later stage, molten tin bath transformer oepration at full load on floatation glass production line, public work transformer is also in running at full capacity, incoming power isolating switch HH1 selects power supply two, incoming power isolating switch HH2 selects power supply four, and power supply is all attracted by public work transformer; (2) when floatation glass production line proceeds to the normal production phase, due to molten tin bath electric heating drop into less, molten tin bath transformer load is very low, and public work transformer is still in running at full capacity, incoming power isolating switch HH1 selects power supply one, incoming power isolating switch HH2 selects power supply three, and power supply is all attracted by molten tin bath transformer; (3) when double-power supply switching device is normally worked, isolating switch HH3, HH4 are auto state; (4) if switching device shifter body circuit breaker Q L1～QL3 or controller break down, isolating switch HH3, HH4 are all switched to manually moving shape, guarantee normal power supply, avoided the power failure causing due to double-power supply switching device body fault.
Incoming power isolating switch HH1, HH2 carrys out the load of reasonable distribution molten tin bath transformer and public work transformer according to float glass load character.
When double-power supply switching device is normally worked, isolating switch HH3, HH4 are auto state; Switching device shifter body circuit breaker Q L1～QL3 or controller break down, manual operation isolating switch HH3, HH4, can guarantee normal power supply equally, after switching device shifter body fault is got rid of, manual operation isolating switch HH3, HH4, make isolating switch HH3, HH4 all switch to auto state.
Compared with prior art, simple in structure, dependable performance, easily manufactured, can guarantee the normal power supply of floatation glass production line, reduces the load loss of transformer, makes between the loading zone of transformer in economical rationality, improves the life-span of transformer in the present invention.
[accompanying drawing explanation]
Accompanying drawing 1 is the electrical schematic diagram of the invention;
Accompanying drawing 2 is the body structure schematic diagram of the invention;
Accompanying drawing 3 is the casing end view of the invention;
Accompanying drawing 4 is the total structural map of circuit breaker of the invention;
Accompanying drawing 5 is the circuit breaker Q L1 fundamental diagram of the invention;
Accompanying drawing 6 is the circuit breaker Q L2 fundamental diagram of the invention;
Accompanying drawing 7 is the circuit breaker Q L3 fundamental diagram of the invention;
Accompanying drawing 8(a) be the power supply I voltage measurement schematic diagram of the invention;
Accompanying drawing 8(b) be the power supply II voltage measurement schematic diagram of the invention;
Accompanying drawing 8(c) be the SA1 of the invention, 2 change over switch record drawings;
Accompanying drawing 9(a) be the power supply I current measurement schematic diagram of the invention;
Accompanying drawing 9(b) be the power supply II current measurement schematic diagram of the invention;
Accompanying drawing 9(c) be the SA change over switch record drawing of the invention;
In accompanying drawing, HH1 is that incoming power is selected isolating switch; HH2 is that incoming power is selected isolating switch; HH3, HH4 are manual/auto selection isolating switch; QL1, QL2, QL3 are Dual-power automatic switching circuit breaker.
[embodiment]
Below in conjunction with accompanying drawing, the invention is described further.
Referring to accompanying drawing 1, the invention operating procedure comprises:
1, the floatation glass production line later stage, the oepration at full load of molten tin bath transformer, the also running at full capacity of public work transformer, now manual operation isolating switch HH1 selects power supply two; Manual operation isolating switch HH2 selects power supply four, and power supply is all attracted by public work transformer.
2, floatation glass production line proceeds to normal production, due to molten tin bath electric heating drop into less, molten tin bath transformer load is very low, public work transformer is in running at full capacity, manual operation isolating switch HH1 selects power supply one, manual operation isolating switch HH2 selects power supply three, and power supply is by all being attracted by molten tin bath transformer.Reduced public work transformer load, provide high molten tin bath transformer load rate, reached the object of reasonable distribution load, reduced the load loss of transformer, made between the loading zone of transformer in economical rationality simultaneously.
3, as the case may be, select flexibly power supply.As the power supply of the dual power supply switching box of raw material workshop, circulation, can select a route public work electric substation and attract, a route shaping electric substation attracts, and arbitrarily combination, simple to operate as required.
When 4, double-power supply switching device is normally worked, isolating switch HH3, HH4 are auto state; If switching device shifter body circuit breaker Q L1～QL3 or controller break down, now manual operation isolating switch HH3, HH4, make isolating switch HH3, HH4 all switch to manually moving shape, guarantee normal power supply, after pending fault is got rid of, manual operation isolating switch HH3, HH4, make isolating switch HH3, HH4 all switch to auto state, avoids the power failure causing due to double-power supply switching device body fault.
Referring to accompanying drawing 2, the internal structure of the invention comprises:
1, from front, circuit breaker Q L1 is positioned at casing ground floor left side, and circuit breaker Q L2 is positioned at circuit breaker Q L1 right side, circuit breaker Q L3 be positioned at circuit breaker Q L2 directly over the second layer.
2, from the side, bus-bar room is positioned at casing top layer.
Referring to accompanying drawing 3, the invention embodiment operation principle is:
1, two switching device shifter two-way power supplys are worked simultaneously, standby each other, automatically switch, and hand-reset.
While 2, normally working, change over switch SA is in 0, circuit breaker Q L1, the energy storage of QL2 energy storage motor.
3, conversion automatically, hand-reset operating procedure:
(1) change over switch SA is placed in to manual position M, manual manipulation button SF1, SF2 makes circuit breaker Q L1, and QL2 closes a floodgate, and two-way power supply is devoted oneself to work simultaneously.
(2) change over switch SA is placed in to automatic switchover position A, waits for and automatically switching.
(3) when a ring current fault, automatically switch to another loop works, electric bell HA sends alarm signal simultaneously, reminds operator on duty, and operating personnel are placed in manual position M by change over switch SA, and alarm automatically terminates.
(4) when fault loop trouble shooting, while recovering normal power supply, manual manipulation button SS3 first allows circuit breaker Q L3 tripping operation, then manual buttons SF1 or SF2 close a floodgate circuit breaker Q L1 or QL2.After normal work, again change over switch SA is placed in to automatic switchover position A, prepare to automatically switch next time.
Claims (4)
1. the double-power supply switching device for floatation glass production line, comprise isolating switch, circuit breaker, it is characterized in that isolating switch HH1 is provided with three wires, the input of first wire joint forming electric substation, second wire connects the input of public electric substation, isolating switch HH1 moving contact is provided with the 3rd wire, the a end of connecting breaker QL1, between a of moving contact and circuit breaker Q L1 end, tap terminals is connected isolating switch HH3 and manually holds, isolating switch HH3 moving contact connects first bus, the b end of circuit breaker Q L1 is provided with a moving contact, the b end of circuit breaker Q L2 is provided with a moving contact, moving contact on moving contact connecting breaker QL2 on circuit breaker Q L1, the a end of the c end connecting breaker QL3 of circuit breaker Q L1, between the c of circuit breaker Q L1 end is held with a of circuit breaker Q L3, tap terminals is connected isolating switch HH3 automatic end, the b end of circuit breaker Q L3 is provided with a moving contact, the tap terminals of wire between the b end of connecting breaker QL1 and the b end of circuit breaker Q L2, the c end of the c end connecting breaker QL2 of circuit breaker Q L3, between the c of circuit breaker Q L3 end is held with the c of circuit breaker Q L2, tap terminals is connected isolating switch HH4 automatic end, isolating switch HH4 moving contact connects second bus, the a end of circuit breaker Q L2 connects isolating switch HH2 moving contact, between a of this moving contact and circuit breaker Q L2 end, tap terminals is connected isolating switch HH4 and manually holds, on isolating switch HH2, be also provided with two wires, the input of Yi Gen joint forming electric substation, another root connects the input of public electric substation.
2. a changing method that uses the double-power supply switching device for floatation glass production line as claimed in claim 1, the changing method that it is characterized in that the described double-power supply switching device for floatation glass production line comprises the following steps: (1) is when the floatation glass production line later stage, shaping electric substation oepration at full load on floatation glass production line, public electric substation is also in running at full capacity, incoming power isolating switch HH1 selects power supply two, incoming power isolating switch HH2 selects power supply four, and power supply is all attracted by public electric substation; (2) when floatation glass production line proceeds to the normal production phase, due to molten tin bath electric heating drop into less, shaping electric substation load is very low, and public electric substation is still in running at full capacity, incoming power isolating switch HH1 selects power supply one, incoming power isolating switch HH2 selects power supply three, and power supply is all attracted by shaping electric substation; (3) when double-power supply switching device is normally worked, isolating switch HH3, HH4 are auto state; (4) if switching device shifter body circuit breaker Q L1～QL3 or controller break down, isolating switch HH3, HH4 are all switched to manual mode, guarantee normal power supply, avoided the power failure causing due to double-power supply switching device body fault.
3. the changing method of the double-power supply switching device for floatation glass production line according to claim 2, is characterized in that incoming power isolating switch HH1 and HH2 carry out the reasonable distribution shaping power transformation load of public electric substation in one's power according to float glass load character.
4. the changing method of the double-power supply switching device for floatation glass production line according to claim 2, while it is characterized in that double-power supply switching device is normally worked, isolating switch HH3, HH4 are auto state; Switching device shifter body circuit breaker Q L1～QL3 or controller break down, manual operation isolating switch HH3, HH4, can guarantee normal power supply equally, after switching device shifter body fault is got rid of, manual operation isolating switch HH3, HH4, make isolating switch HH3, HH4 all switch to auto state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401010.2A CN102420459B (en) | 2011-12-06 | 2011-12-06 | Duplicate supply switching apparatus used for float glass production line and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401010.2A CN102420459B (en) | 2011-12-06 | 2011-12-06 | Duplicate supply switching apparatus used for float glass production line and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102420459A CN102420459A (en) | 2012-04-18 |
| CN102420459B true CN102420459B (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110401010.2A Active CN102420459B (en) | 2011-12-06 | 2011-12-06 | Duplicate supply switching apparatus used for float glass production line and method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110445244A (en) * | 2019-07-16 | 2019-11-12 | 咸宁南玻玻璃有限公司 | A kind of floatation glass production line outer net have a power failure after method of supplying power to |
| CN112688417A (en) * | 2020-12-21 | 2021-04-20 | 信和光能(安徽)有限公司 | Glass kiln system with double power supplies switched for power supply |
Citations (1)
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|---|---|---|---|---|
| CN101969227A (en) * | 2010-11-15 | 2011-02-09 | 湖南雁能森源电力设备有限公司 | Self-powered automatic switching and closing high-voltage control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08205427A (en) * | 1995-01-19 | 1996-08-09 | Toshiba Eng & Constr Co Ltd | Uninterruptible stabilized power supply |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969227A (en) * | 2010-11-15 | 2011-02-09 | 湖南雁能森源电力设备有限公司 | Self-powered automatic switching and closing high-voltage control system |
Non-Patent Citations (7)
| Title |
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| JP特开平8-205427A 1996.08.09 |
| 具有缺相保护的双电源自动切换控制;姜信建;《2007年中国浮法玻璃新技术发展研讨会论文集》;20080801;第241-243页 * |
| 姜信建.具有缺相保护的双电源自动切换控制.《2007年中国浮法玻璃新技术发展研讨会论文集》.2008, |
| 山西光华浮法二线电力设施配置实践;张公民等;《山西建材》;19950331(第3期);第33-34页 * |
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