CN201312127Y - Calcium carbide furnace reactive power compensator - Google Patents
Calcium carbide furnace reactive power compensator Download PDFInfo
- Publication number
- CN201312127Y CN201312127Y CNU2008202231778U CN200820223177U CN201312127Y CN 201312127 Y CN201312127 Y CN 201312127Y CN U2008202231778 U CNU2008202231778 U CN U2008202231778U CN 200820223177 U CN200820223177 U CN 200820223177U CN 201312127 Y CN201312127 Y CN 201312127Y
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- furnace
- calcium carbide
- transformer
- capacitance
- reactive power
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model relates to a power network reactive power compensator especially used for the low-voltage connection reactive compensation of a calcium carbide furnace transformer, which comprises a capacitance compensation device arranged on a short network between a furnace transformer secondary side and the electrode of a calcium carbide furnace, wherein the capacitance compensating device is at least composed of a booster voltage-regulating transformer, a switch, a current-limiting coil and a capacitance group formed by the pairing formation of a plurality of capacitances through the series connection. The calcium carbide furnace reactive power compensator can automatically control COS phi over 0.9, and the back compensation of the calcium carbide furnace transformer not only has the front compensation function, but also has the transformer contribution increase of the furnace, simple control and protection, high reliability and small maintenance workload, and has the characteristics of increasing productivity, and reducing investment cost per unit, fixed cost per unit, product apportion furnace transformer per unit and short network loss, and having high return rate.
Description
Technical field
The utility model relates to the electric power network reactive power compensation device, is specially adapted to the calcium-carbide furnace transformer low-voltage connecting reactive-load compensation.
Background technology
Electric power system is in order to ensure the quality of power supply of power supply, all need adopt the reactive power compensation technology, in calcium carbide enterprise, generally there is following compensating form: the one, adopt high-voltage capacitor to compensate on the high-voltage fence before furnace of calcium carbide becomes, be called height-high pressure compensation, this compensation way maturity and safe, the electric capacity life-span is long, the condenser capacity decay is little, safeguard simply therefore become first-selected this compensation way of enterprise of 85%, but this compensation way does not have effect to the efficient that the raising furnace of calcium carbide becomes, can not reduce the power consumption of furnace of calcium carbide, calcium carbide is not had effect of increasing production; The 2nd, in furnace of calcium carbide becomes, set up one group of intermediate voltage winding and adopt high-voltage capacitor to compensate, in being called-high pressure compensation, it mainly acts on is that the compensation furnace of calcium carbide uprises line ball circle electrical network in the past, maturity is not high, furnace of calcium carbide becomes that rate of failure is higher, and fail safe is relatively poor, simultaneously to improving efficient that furnace of calcium carbide becomes without any effect, can not reduce the power consumption of furnace of calcium carbide, calcium carbide is not had effect of increasing production; The 3rd, become the later short online secondary capacitor that adopts of low pressure at furnace of calcium carbide and compensate, be called low-low-voltage compensation, be to become secondary side at furnace of calcium carbide, directly adopt standard capacitor that standard capacitor is done to compensate after the capacity discount is handled, its objective is the short net of compensation furnace of calcium carbide secondary electrical network in the past, comprise that furnace of calcium carbide becomes, though it can effectively improve the efficient that furnace of calcium carbide becomes, reduce the energy consumption of furnace of calcium carbide, improve calcium carbide output, but its maturity is not high, the secondary capacitor capacity is decayed in time, the disjunction of low tension switch, the fusing ability of low-tension fuse can not meet the demands, and has the hidden danger on the safety, poor stability, maintenance workload is big, the electric capacity life-span is short, and the furnace of calcium carbide secondary voltage is bigger to the influence of compensation capacity, invests bigger.
The utility model content
The purpose of this utility model be to overcome the shortcoming of above-mentioned prior art and provide a kind of stability and safe, safeguard simple and can effectively improve the efficient that furnace of calcium carbide becomes, reduce furnace of calcium carbide power transformation consumption, increase the electric power network reactive power compensation device of calcium carbide output.
The purpose of this utility model is achieved in that
A kind of furnace of calcium carbide reactive power compensator, comprise being connected between furnace transformer secondary side and the furnace of calcium carbide electrode short online Electric capacity compensation device that this Electric capacity compensation device is connected in series successively by step-up transformer, tap changer, current-limiting inductor with by the capacitance group that a plurality of capacitance pairings form at least and forms.
Further improve and be, described Electric capacity compensation device is behind step-up transformer, and the circuit of array with spline structure in parallel, these circuit are connected in series successively by tap changer, current-limiting inductor with by the capacitance group that a plurality of capacitance pairings form and form.
Described electric capacity is formed by a plurality of capacitance pairings, and this capacitance pairing forms with parallel connection, series connection or connection in series-parallel.
Power network also will be born the reactive power Q of load except bearing the active power P of power load, has following relation between active power P, reactive power Q and the apparent power S, i.e. S
2=P
2+ Q
2And P/S=COS Φ is defined as the power factor of power network, and its physical significance is the shared percentage of consumption that the apparent power S of circuit supplies with active power.In service at power network, we are desirable to be that power factor is the bigger the better, and if can accomplish this point, then the apparent power in the circuit is used for supplying with active power with major part, to reduce the consumption of reactive power.Because power factor can also be expressed as following form A OS Φ=P/S, U is line voltage KV among P=S * COS Φ=1.732 * U * I * COS Φ, and I is line current A.As seen, under certain voltage and current, improve COS Φ, the active power of its output is big more.Therefore, improving power factor is to give full play to equipment potential, improves the effective ways of usage ratio of equipment.
The utility model has made full use of the method for this raising utilization rate of equipment and installations; the calcium-carbide furnace transformer secondary side is compensated; because calcium-carbide furnace transformer secondary voltage on valve side operates between the 160-190V; not standard civil power 230V; employing rises to off-gauge secondary voltage by the voltage regulating transformer that boosts the 10KV of standard; use universal standard 10KV level capacitor to compensate then; also available tap changer is adjusted the compensation capacity that 10kv voltage changes capacitor; can control a COS φ automatically is controlled at more than 0.9; end compensating not only has the function of front-end compensation but also has and improves stove and become and exert oneself behind the calcium-carbide furnace transformer; control; protection is simple; the reliability height; the Maintenance and Repair workload is little; and has an increase production capacity; reduce the specific investment cost cost; fixed cost per unit; unit product is shared stove and is become; short network loss, the high characteristics of rate of return on investment.
Description of drawings
Fig. 1 is a circuit connection diagram of the present utility model;
Embodiment
Embodiment 1: present embodiment is applicable to 110KV power supply compensation, short net is connected with Electric capacity compensation device 3 between calcium-carbide furnace transformer 1 secondary side and furnace of calcium carbide electrode 2, this Electric capacity compensation device is to be parallel with two groups of circuit with spline structure behind the voltage regulating transformer 4 that boosts, these two groups of circuit are by 10KV switch 5, current-limiting inductor 7 and 10KV standard capacitor group 6 serial connections form, because calcium-carbide furnace transformer 1 secondary voltage on valve side operates between the 160-190V, not standard civil power 230V, employing rises to off-gauge secondary voltage by the voltage regulating transformer 4 that boosts the 10KV of standard, use universal standard 10KV level capacitor to compensate then, wherein 10KV standard capacitor 6 is connected in series with 10KV switch 5 after selecting three capacitor connections triangular in shape for use again.
Embodiment 2: the utility model is applicable to 35KV power supply compensation way, the short Electric capacity compensation device 3 that is connected with on the net between calcium-carbide furnace transformer 1 secondary side and furnace of calcium carbide electrode 2, this Electric capacity compensation device is formed by the voltage regulating transformer 4 that boosts, 10KV switch 5, current-limiting inductor 7 and 10KV standard capacitor 6 serial connections, and described 10KV standard capacitor 6 is to be connected in series with 10KV switch 5 after being star-like connection by three capacitors again.
Claims (3)
1, a kind of furnace of calcium carbide reactive power compensator, comprise being connected between furnace transformer secondary side and the furnace of calcium carbide electrode short online Electric capacity compensation device, it is characterized in that this Electric capacity compensation device is connected in series successively by the voltage regulating transformer that boosts, switch, current-limiting inductor with by the capacitance group that a plurality of capacitance pairings form at least to form.
2, furnace of calcium carbide reactive power compensator according to claim 1, it is characterized in that described Electric capacity compensation device is behind the voltage regulating transformer that boosts, the circuit of array with spline structure in parallel, these circuit are connected in series successively by switch, current-limiting inductor with by the capacitance group that a plurality of capacitance pairings form and form.
3, furnace of calcium carbide reactive power compensator according to claim 1 and 2 is characterized in that what described capacitance pairing formed with parallel connection, series connection or connection in series-parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231778U CN201312127Y (en) | 2008-12-05 | 2008-12-05 | Calcium carbide furnace reactive power compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231778U CN201312127Y (en) | 2008-12-05 | 2008-12-05 | Calcium carbide furnace reactive power compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201312127Y true CN201312127Y (en) | 2009-09-16 |
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ID=41109382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202231778U Expired - Fee Related CN201312127Y (en) | 2008-12-05 | 2008-12-05 | Calcium carbide furnace reactive power compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201312127Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593845A (en) * | 2012-03-09 | 2012-07-18 | 云南文山斗南锰业股份有限公司 | Reactive power compensation system of alloy smelting electric furnace system |
-
2008
- 2008-12-05 CN CNU2008202231778U patent/CN201312127Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593845A (en) * | 2012-03-09 | 2012-07-18 | 云南文山斗南锰业股份有限公司 | Reactive power compensation system of alloy smelting electric furnace system |
| CN102593845B (en) * | 2012-03-09 | 2014-10-15 | 云南文山斗南锰业股份有限公司 | Reactive power compensation system of alloy smelting electric furnace system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YIBIN TIANYUAN CHEMICAL ENGINEERING DESIGN CO., LT Effective date: 20130422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130422 Address after: 644004 Yibin, China, under the middle of Jiangbei Road, No. 1, No. Patentee after: YiBin TianYuan Group Co., Ltd. Patentee after: Yibin Tianyuan Chemical Engineering Design Co., Ltd. Address before: 644004 Yibin Jiangbei District, Sichuan Patentee before: YiBin TianYuan Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20171205 |