CN204615501U - A kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation - Google Patents
A kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation Download PDFInfo
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- CN204615501U CN204615501U CN201520316986.3U CN201520316986U CN204615501U CN 204615501 U CN204615501 U CN 204615501U CN 201520316986 U CN201520316986 U CN 201520316986U CN 204615501 U CN204615501 U CN 204615501U
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Abstract
The utility model discloses a kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation, comprise flameproof high-voltage vacuum distribution equipment for mining major loop and minisize dc power supply; Wherein, flameproof high-voltage vacuum distribution equipment for mining major loop comprises vacuum circuit-breaker, high-tension fuse, voltage transformer and low-tension fuse; Vacuum circuit-breaker is series between three electric power incoming lines and its output, high-tension fuse is parallel to three between electric power incoming line and vacuum circuit-breaker, and the output of high-tension fuse is connected with the input of voltage transformer, the output of voltage transformer is connected with the input of low-tension fuse, the output of low-tension fuse is connected with the input of minisize dc power supply, and the output of minisize dc power supply is connected with secondary circuit load in flameproof high-voltage vacuum distribution equipment for mining.The utility model is that the protection of flameproof high-voltage vacuum distribution equipment for mining and operation circuit can realize uninterrupted power supply.
Description
Technical field:
The utility model relates to a kind of flameproof high-voltage vacuum distribution equipment for mining, is specifically related to a kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation.
Background technology:
Front domestic market flameproof high-voltage vacuum distribution equipment for mining adopts alternating current operation power supply.Specific practice is generally voltage transformer in flame proof cabinet and gets interchange 100V power supply, becomes alternating current 220V as microcomputer complex protection protection power source in cabinet and circuit-breaker switching on-off operating power through step-up transformer.As major loop break down time, PT side loses out-put supply simultaneously, thus can not reliably by circuit breaker disjunction, and namely reliability is not high.
Utility model content:
The purpose of this utility model is to overcome above-mentioned prior art shortcoming, provides a kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation, and it by the operating power system that external power source affects, does not improve the reliability of electric power system.
For achieving the above object, the utility model takes following technical scheme to be achieved:
A flameproof high-voltage vacuum distribution equipment for mining for DC operation, comprises flameproof high-voltage vacuum distribution equipment for mining major loop and minisize dc power supply; Wherein,
Flameproof high-voltage vacuum distribution equipment for mining major loop comprises vacuum circuit-breaker, high-tension fuse, voltage transformer and low-tension fuse; Vacuum circuit-breaker is series between three electric power incoming lines and its output, high-tension fuse is parallel to three between electric power incoming line and vacuum circuit-breaker, and the output of high-tension fuse is connected with the input of voltage transformer, the output of voltage transformer is connected with the input of low-tension fuse, and the output of low-tension fuse is connected with the input of minisize dc power supply.
The utility model further improves and is: vacuum circuit-breaker replaces with contactor or on-load switch.
The utility model further improves and is: low-tension fuse replaces with low-voltage circuit breaker.
The utility model further improves and is: vacuum circuit-breaker is handcart type breaker.
The utility model further improves and is: minisize dc power supply comprises CPU control module, AC/DC rectification module, three stage charging modules, storage battery, DC/DC boost module and DC/DC Voltage stabilizing module; Wherein, CPU control module can make storage battery when exchanging input and having a power failure for load provides DC power supply;
AC/DC rectification filtering module and DC/DC Voltage stabilizing module form series loop; Three stage charging modules, storage battery and DC/DC boost module are through the series loop of DC/DC Voltage stabilizing module composition; Two series loop composition shunt circuits; The output of low-tension fuse is connected with the input of two series loops, and the output of two series loops is connected with secondary circuit load in flameproof high-voltage vacuum distribution equipment for mining.
The utility model further improves and is: the output of minisize dc power supply provides DC110V or DC220V power supply.
The utility model further improves and is: flameproof high-voltage vacuum distribution equipment for mining major loop also comprises current transformer and earthed switch; Current transformer and earthed switch are arranged between the output of vacuum circuit-breaker and load.
Relative to prior art, the utility model has following advantage:
The utility model is that the protection of flameproof high-voltage vacuum distribution equipment for mining and operation circuit can realize uninterrupted power supply, ensures that the defencive function of flameproof high-voltage vacuum distribution equipment for mining during mains power failure and operating function can normally work, excision fault.
Further, when external power source normally works, voltage transformer AC100V power supply, by being load supplying after minisize dc power supply rectifying and voltage-stabilizing, gives charge in batteries in minisize dc power supply simultaneously; When outside power failure, be load supplying by storage battery after boosting, voltage stabilizing, reach the effect of uninterrupted power supply.
Accompanying drawing illustrates:
Fig. 1 is the principle schematic of the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation of the utility model;
Fig. 2 is the circuit diagram of the utility model minisize dc power supply.
In figure: QF is vacuum circuit-breaker; TV is voltage transformer; FU1-3 is high-tension fuse; FU4-6 is low-voltage circuit breaker; ZLB is minisize dc power supply; LH is current transformer; ES is earthed switch; FZ is load.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further details:
As shown in Figure 1, the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation of the utility model, comprises flameproof high-voltage vacuum distribution equipment for mining major loop and minisize dc power supply ZLB; Wherein,
Flameproof high-voltage vacuum distribution equipment for mining major loop comprises vacuum circuit-breaker QF, high-tension fuse FU1-3, voltage transformer TV and low-tension fuse FU4-6; Vacuum circuit-breaker QF is series between three electric power incoming lines and its output, high-tension fuse FU1-3 is parallel between three electric power incoming lines and vacuum circuit-breaker QF, and the output of high-tension fuse FU1-3 is connected with the input of voltage transformer TV, the output of voltage transformer TV is connected with the input of low-tension fuse FU4-6, and the output of low-tension fuse FU4-6 is connected with the input of minisize dc power supply ZLB.
Wherein, vacuum circuit-breaker QF is handcart type breaker, and vacuum circuit-breaker QF can replace with contactor or on-load switch.
As shown in Figure 2, minisize dc power supply ZLB comprises CPU control module, AC/DC rectification module, three stage charging modules, storage battery, DC/DC boost module and DC/DC Voltage stabilizing module; Wherein, CPU control module can make storage battery when exchanging input and having a power failure for load provides DC power supply;
AC/DC rectification filtering module and DC/DC Voltage stabilizing module form series loop; Three stage charging modules, storage battery and DC/DC boost module are through the series loop of DC/DC Voltage stabilizing module composition; Two series loop composition shunt circuits; The output of low-tension fuse FU4-6 is connected with the input of two series loops, and the output of two series loops is connected with secondary circuit load in flameproof high-voltage vacuum distribution equipment for mining.
Further, flameproof high-voltage vacuum distribution equipment for mining major loop also comprises current transformer LH and earthed switch ES; Current transformer LH and earthed switch ES is arranged between the output of vacuum circuit-breaker QF and load FZ.
The utility model adds minisize dc power supply ZLB on existing flameproof high-voltage vacuum distribution equipment for mining basis; its input side AC100V power supply to take from flame proof cabinet voltage transformer in voltage transformer TV or mining flame-proof type high voltage voltage transformer cabinet; voltage transformer is protected by high-tension fuse FU1-3 and low-tension fuse FU4-6, and outlet side can provide DC110V or DC220V power supply as required.When external power source normally works, voltage transformer AC100V power supply, by being load supplying after minisize dc power supply rectifying and voltage-stabilizing, gives charge in batteries in minisize dc power supply simultaneously; When outside power failure, be load supplying by storage battery after boosting, voltage stabilizing, reach the effect of uninterrupted power supply, ensure that the defencive function of flameproof high-voltage vacuum distribution equipment for mining and operating function can normally work, excision fault.
Battery capacity need be determined according to load conventional in flameproof high-voltage vacuum distribution equipment for mining, short-term load (duty), instantaneous load, meets protection and the operating function of flameproof high-voltage vacuum distribution equipment for mining.
Claims (7)
1. a flameproof high-voltage vacuum distribution equipment for mining for DC operation, is characterized in that: comprise flameproof high-voltage vacuum distribution equipment for mining major loop and minisize dc power supply (ZLB); Wherein,
Flameproof high-voltage vacuum distribution equipment for mining major loop comprises vacuum circuit-breaker (QF), high-tension fuse (FU1-3), voltage transformer (TV) and low-tension fuse (FU4-6); Vacuum circuit-breaker (QF) is series between three electric power incoming lines and its output, high-tension fuse (FU1-3) is parallel between three electric power incoming lines and vacuum circuit-breaker (QF), and the output of high-tension fuse (FU1-3) is connected with the input of voltage transformer (TV), the output of voltage transformer (TV) is connected with the input of low-tension fuse (FU4-6), and the output of low-tension fuse (FU4-6) is connected with the input of minisize dc power supply (ZLB).
2. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that: vacuum circuit-breaker (QF) replaces with contactor or on-load switch.
3. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that: low-tension fuse (FU4-6) replaces with low-voltage circuit breaker.
4. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that: vacuum circuit-breaker (QF) is handcart type breaker.
5. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that:
Minisize dc power supply (ZLB) comprises CPU control module, AC/DC rectification module, three stage charging modules, storage battery, DC/DC boost module and DC/DC Voltage stabilizing module; Wherein, CPU control module can make storage battery when exchanging input and having a power failure for load provides DC power supply;
AC/DC rectification filtering module and DC/DC Voltage stabilizing module form series loop; Three stage charging modules, storage battery and DC/DC boost module are through the series loop of DC/DC Voltage stabilizing module composition; Two series loop composition shunt circuits; The output of low-tension fuse (FU4-6) is connected with the input of two series loops, and the output of two series loops is connected with secondary circuit load in flameproof high-voltage vacuum distribution equipment for mining.
6. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that: the output of minisize dc power supply (ZLB) provides DC110V or DC220V power supply.
7. the flameproof high-voltage vacuum distribution equipment for mining of a kind of DC operation according to claim 1, is characterized in that: flameproof high-voltage vacuum distribution equipment for mining major loop also comprises current transformer (LH) and earthed switch (ES); Current transformer (LH) and earthed switch (ES) are arranged between the output of vacuum circuit-breaker (QF) and load (FZ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316986.3U CN204615501U (en) | 2015-05-15 | 2015-05-15 | A kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520316986.3U CN204615501U (en) | 2015-05-15 | 2015-05-15 | A kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation |
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| CN204615501U true CN204615501U (en) | 2015-09-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681779A (en) * | 2017-09-06 | 2018-02-09 | 河南省三禾电气有限公司 | One or two fusion high-pressure vacuum breakers and its monitoring method, system |
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2015
- 2015-05-15 CN CN201520316986.3U patent/CN204615501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681779A (en) * | 2017-09-06 | 2018-02-09 | 河南省三禾电气有限公司 | One or two fusion high-pressure vacuum breakers and its monitoring method, system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170208 Address after: 710054 Shaanxi province Xi'an City Road, Yanta Beilin District No. 66 Patentee after: China Coal Sian Desigineering Co., Ltd. Patentee after: Xi'an Mellon control engineering limited liability company Address before: The northern section of Beilin District Yanta Road 710054 Shaanxi city of Xi''an province No. 66 Patentee before: China Coal Sian Desigineering Co., Ltd. |