CN103824686B - Mine explosion-suppression vacuum switch controls apparatus for protecting power supply - Google Patents
Mine explosion-suppression vacuum switch controls apparatus for protecting power supply Download PDFInfo
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- CN103824686B CN103824686B CN201410070099.2A CN201410070099A CN103824686B CN 103824686 B CN103824686 B CN 103824686B CN 201410070099 A CN201410070099 A CN 201410070099A CN 103824686 B CN103824686 B CN 103824686B
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- inner chamber
- tubulose
- vacuum switch
- shrinkage pools
- power supply
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Abstract
The present invention relates to control power protection, specifically a kind of mine explosion-suppression vacuum switch controls apparatus for protecting power supply.The invention solves the problem easily causing power outage to expand when internal short circuit fault appears in single-phase control transformer.Mine explosion-suppression vacuum switch controls apparatus for protecting power supply and comprises base, insulated bolt, fuse, Compress Spring, contact, lead-in wire, insulating nut; Wherein, the upper surface symmetry of base offers two tubulose shrinkage pools; The hole wall of two tubulose shrinkage pools is respectively provided with one group of internal thread; The bottom of two insulated bolts is screwed the inner chamber top in two tubulose shrinkage pools respectively by two groups of internal threads; The end face of two insulated bolts respectively offers a vertical through tube-shaped through hole; The top of two fuses is sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The bottom of two fuses is sheathed on the inner chamber bottom of two tubulose shrinkage pools respectively.The present invention is applicable to mine explosion-suppression vacuum switch.
Description
Technical field
The present invention relates to control power protection, specifically a kind of mine explosion-suppression vacuum switch controls apparatus for protecting power supply.
Background technology
At present, in machine worked mine production process, use the mobile substation controlled by mine explosion-suppression vacuum switch in a large number, and generally adopt single-phase control transformer as the control power supply of mine explosion-suppression vacuum switch.In actual applications; high pressure (once) coil of single-phase control transformer is directly connected with upper level three-phase alternating-current supply; just following problem is brought thus: once internal short circuit fault appears in single-phase control transformer; electric current in high pressure (once) coil of single-phase control transformer just can increase rapidly and burns; form power supply short circuit; the high-voltage switch gear of upper level three-phase alternating-current supply is made to carry out protection (namely the high-voltage switch gear of upper level three-phase alternating-current supply trips) of bypassing the immediate leadership; cause power outage to expand thus, thus have a strong impact on Safety of Coal Mine Production.Be necessary to invent a kind of control apparatus for protecting power supply completely newly, to solve the problem easily causing power outage to expand when internal short circuit fault appears in single-phase control transformer for this reason.
Summary of the invention
The present invention, in order to solve the problem easily causing power outage to expand when internal short circuit fault appears in single-phase control transformer, provides a kind of mine explosion-suppression vacuum switch and controls apparatus for protecting power supply.
The present invention adopts following technical scheme to realize: mine explosion-suppression vacuum switch controls apparatus for protecting power supply, comprises base, insulated bolt, fuse, Compress Spring, contact, lead-in wire, insulating nut; Wherein, the upper surface symmetry of base offers two tubulose shrinkage pools; The hole wall of two tubulose shrinkage pools is respectively provided with one group of internal thread; The number of insulated bolt is two; The bottom of two insulated bolts is screwed the inner chamber top in two tubulose shrinkage pools respectively by two groups of internal threads; The end face of two insulated bolts respectively offers a vertical through tube-shaped through hole; The number of fuse is two; The top of two fuses is sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The bottom of two fuses is sheathed on the inner chamber bottom of two tubulose shrinkage pools respectively; The number of Compress Spring is two; Two Compress Springs are sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The lower end of two Compress Springs is fixed with the upper surface of two fuses respectively; The number of contact is four; Wherein two contacts are fixed by socket the inner chamber bottom in two tube-shaped through hole respectively, and the lower surface of these two contacts is fixed with the upper end of two Compress Springs respectively; Two other contact is fixed by socket the inner chamber bottom in two tubulose shrinkage pools respectively, and the upper surface of these two contacts is fixed with the lower surface of two fuses respectively; The number of lead-in wire is two; The bottom of two lead-in wires is sheathed on the inner chamber top of two tube-shaped through hole respectively; The lower end of two lead-in wires is welded and fixed with the upper surface of two contacts respectively; The number of insulating nut is two; Two insulating nuts are screwed respectively on two insulated bolts, and two insulating nuts are cast in the upper surface of base respectively.
During work, be connected with the two-phase in upper level three-phase alternating-current supply respectively the upper end that two go between, high pressure (once) coil of fuse, Compress Spring, contact, lead-in wire, single-phase control transformer forms current circuit thus jointly.Specific works process is as follows: when internal short circuit fault appears in single-phase control transformer; electric current in high pressure (once) coil of single-phase control transformer increases rapidly; fuse is fused rapidly; cut off contacting between the high-voltage switch gear of upper level three-phase alternating-current supply and single-phase control transformer completely thus; make the high-voltage switch gear of upper level three-phase alternating-current supply can not carry out protection (namely the high-voltage switch gear of upper level three-phase alternating-current supply can not trip) of bypassing the immediate leadership; thus thoroughly prevent the expansion of power outage, effectively ensure that Safety of Coal Mine Production.In the process, insulated bolt, Compress Spring, contact, insulating nut play the effect of fixing fuse, conduction and insulation protection jointly, and have the advantage being convenient to safeguard.Based on said process, mine explosion-suppression vacuum switch of the present invention controls apparatus for protecting power supply by adopting brand-new integrated technology, efficiently solves the problem easily causing power outage to expand when internal short circuit fault appears in single-phase control transformer.
The present invention is rational in infrastructure, it is ingenious to design; efficiently solve the problem easily causing power outage to expand when internal short circuit fault appears in single-phase control transformer; it can not only realize electic protection; and the handcart that can be arranged on mine explosion-suppression vacuum switch is inner; have that volume is little, cost is low simultaneously, stable performance, anti-impacting with high pressure ability are strong, be convenient to the advantage safeguarded, be applicable to mine explosion-suppression vacuum switch.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is internal structure schematic diagram of the present invention.
In figure: 1-base, 2-insulated bolt, 3-fuse, 4-Compress Spring, 5-contact, 6-goes between, 7-insulating nut.
Embodiment
Mine explosion-suppression vacuum switch controls apparatus for protecting power supply, comprises base 1, insulated bolt 2, fuse 3, Compress Spring 4, contact 5, lead-in wire 6, insulating nut 7; Wherein, the upper surface symmetry of base 1 offers two tubulose shrinkage pools; The hole wall of two tubulose shrinkage pools is respectively provided with one group of internal thread; The number of insulated bolt 2 is two; The bottom of two insulated bolts 2 is screwed the inner chamber top in two tubulose shrinkage pools respectively by two groups of internal threads; The end face of two insulated bolts 2 respectively offers a vertical through tube-shaped through hole; The number of fuse 3 is two; The top of two fuses 3 is sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The bottom of two fuses 3 is sheathed on the inner chamber bottom of two tubulose shrinkage pools respectively; The number of Compress Spring 4 is two; Two Compress Springs 4 are sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The lower end of two Compress Springs 4 is fixed with the upper surface of two fuses 3 respectively; The number of contact 5 is four; Wherein two contacts 5 are fixed by socket the inner chamber bottom in two tube-shaped through hole respectively, and the lower surface of these two contacts 5 is fixed with the upper end of two Compress Springs 4 respectively; Two other contact 5 is fixed by socket the inner chamber bottom in two tubulose shrinkage pools respectively, and the upper surface of these two contacts 5 is fixed with the lower surface of two fuses 3 respectively; The number of lead-in wire 6 is two; The bottom of two lead-in wires 6 is sheathed on the inner chamber top of two tube-shaped through hole respectively; The lower end of two lead-in wires 6 is welded and fixed with the upper surface of two contacts 5 respectively; The number of insulating nut 7 is two; Two insulating nuts 7 are screwed respectively on two insulated bolts 2, and two insulating nuts 7 are cast in the upper surface of base 1 respectively.
During concrete enforcement, insulated bolt 2 is nylon insulated bolt, and the bottom of insulated bolt 2 is tape insulation nested structure; Insulating nut 7 is nylon insulating nut.Fuse 3 is for having the 10KV fuse of anti-time limit characteristic; The diameter of fuse 3 is 20mm; The length of fuse 3 is 125mm.Contact 5 is copper contact.
Claims (4)
1. mine explosion-suppression vacuum switch controls an apparatus for protecting power supply, it is characterized in that: comprise base (1), insulated bolt (2), fuse (3), Compress Spring (4), contact (5), lead-in wire (6) and insulating nut (7); Wherein, the upper surface symmetry of base (1) offers two tubulose shrinkage pools; The hole wall of two tubulose shrinkage pools is respectively provided with one group of internal thread; The number of insulated bolt (2) is two; The bottom of two insulated bolts (2) is screwed the inner chamber top in two tubulose shrinkage pools respectively by two groups of internal threads; The end face of two insulated bolts (2) respectively offers a vertical through tube-shaped through hole; The number of fuse (3) is two; The top of two fuses (3) is sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The bottom of two fuses (3) is sheathed on the inner chamber bottom of two tubulose shrinkage pools respectively; The number of Compress Spring (4) is two; Two Compress Springs (4) are sheathed on the inner chamber bottom of two tube-shaped through hole respectively; The lower end of two Compress Springs (4) is fixed with the upper surface of two fuses (3) respectively; The number of contact (5) is four; Wherein two contacts (5) are fixed by socket the inner chamber bottom in two tube-shaped through hole respectively, and the lower surface of these two contacts (5) is fixed with the upper end of two Compress Springs (4) respectively; Two other contact (5) is fixed by socket the inner chamber bottom in two tubulose shrinkage pools respectively, and the upper surface of these two contacts (5) is fixed with the lower surface of two fuses (3) respectively; The number of lead-in wire (6) is two; The bottom of two lead-in wires (6) is sheathed on the inner chamber top of two tube-shaped through hole respectively; The lower end of two lead-in wires (6) is welded and fixed with the upper surface of two contacts (5) respectively; The number of insulating nut (7) is two; Two insulating nuts (7) are screwed respectively on two insulated bolts (2), and two insulating nuts (7) are cast in the upper surface of base (1) respectively.
2. mine explosion-suppression vacuum switch according to claim 1 controls apparatus for protecting power supply, it is characterized in that: insulated bolt (2) is nylon insulated bolt, and the bottom of insulated bolt (2) is tape insulation nested structure; Insulating nut (7) is nylon insulating nut.
3. mine explosion-suppression vacuum switch according to claim 1 controls apparatus for protecting power supply, it is characterized in that: fuse (3) is for having the 10KV fuse of anti-time limit characteristic; The diameter of fuse (3) is 20mm; The length of fuse (3) is 125mm.
4. mine explosion-suppression vacuum switch according to claim 1 controls apparatus for protecting power supply, it is characterized in that: contact (5) is copper contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070099.2A CN103824686B (en) | 2014-02-28 | 2014-02-28 | Mine explosion-suppression vacuum switch controls apparatus for protecting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070099.2A CN103824686B (en) | 2014-02-28 | 2014-02-28 | Mine explosion-suppression vacuum switch controls apparatus for protecting power supply |
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| Publication Number | Publication Date |
|---|---|
| CN103824686A CN103824686A (en) | 2014-05-28 |
| CN103824686B true CN103824686B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410070099.2A Active CN103824686B (en) | 2014-02-28 | 2014-02-28 | Mine explosion-suppression vacuum switch controls apparatus for protecting power supply |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB480690A (en) * | 1936-08-25 | 1938-02-25 | Vernon Hope | Improvements in electric fuse fittings |
| US2648740A (en) * | 1951-02-26 | 1953-08-11 | Cinch Mfg Corp | Fuse holder |
| US3286061A (en) * | 1965-02-15 | 1966-11-15 | Superior Electric Co | Fuse, switch and pilot light unitary device |
| US3480898A (en) * | 1967-04-12 | 1969-11-25 | Gen Electric | Combined fuse and switch operator assembly |
| CN201204172Y (en) * | 2008-05-06 | 2009-03-04 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground type oil immersion distribution transformer |
| CN201489992U (en) * | 2009-09-04 | 2010-05-26 | 大连北方互感器集团有限公司 | Three-phase cable fuse voltage transformer |
-
2014
- 2014-02-28 CN CN201410070099.2A patent/CN103824686B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB480690A (en) * | 1936-08-25 | 1938-02-25 | Vernon Hope | Improvements in electric fuse fittings |
| US2648740A (en) * | 1951-02-26 | 1953-08-11 | Cinch Mfg Corp | Fuse holder |
| US3286061A (en) * | 1965-02-15 | 1966-11-15 | Superior Electric Co | Fuse, switch and pilot light unitary device |
| US3480898A (en) * | 1967-04-12 | 1969-11-25 | Gen Electric | Combined fuse and switch operator assembly |
| CN201204172Y (en) * | 2008-05-06 | 2009-03-04 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground type oil immersion distribution transformer |
| CN201489992U (en) * | 2009-09-04 | 2010-05-26 | 大连北方互感器集团有限公司 | Three-phase cable fuse voltage transformer |
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| Publication number | Publication date |
|---|---|
| CN103824686A (en) | 2014-05-28 |
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