CN110544944A - AC/DC composite overhaul power supply device - Google Patents
AC/DC composite overhaul power supply device Download PDFInfo
- Publication number
- CN110544944A CN110544944A CN201910968234.8A CN201910968234A CN110544944A CN 110544944 A CN110544944 A CN 110544944A CN 201910968234 A CN201910968234 A CN 201910968234A CN 110544944 A CN110544944 A CN 110544944A
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- Prior art keywords
- rectifier
- direct current
- power supply
- module
- leakage protector
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 230000001012 protector Effects 0.000 claims abstract description 28
- 238000012423 maintenance Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses an alternating current-direct current composite overhaul power supply device, wherein the rear end of a three-phase power plug is sequentially connected with a disconnection point module, a leakage protector and an alternating current-direct current voltage regulating module, the alternating current-direct current voltage regulating module specifically comprises a voltage regulator, a first rectifier and a plurality of wiring terminals, the input end of the voltage regulator is connected on L and N wires at the rear end of the leakage protector, the output end of the voltage regulator is respectively connected with a voltmeter, the first rectifier and the plurality of wiring terminals, the voltmeter, the first rectifier and the plurality of wiring terminals are mutually connected in parallel, and the output end of; the direct current filtering module comprises a filter, a second rectifier and a plurality of wiring terminals, the input end of the second rectifier is connected with the L and N lines at the rear end of the leakage protector, the output end of the second rectifier is connected with the filter, and the output end of the filter is connected with the plurality of wiring terminals. The invention can realize AC/DC voltage regulation output, the output port has obvious disconnection points, and the efficiency of maintenance operation is improved.
Description
Technical Field
The invention relates to the technical field of power grid maintenance equipment, in particular to an alternating current-direct current composite maintenance power supply device.
Background
In recent years, with the rapid increase of the number of substations, the man-by-man workload is increased in a blowout manner without the obvious increase of the number of maintainers. The transformer maintenance work does not leave the maintenance power supply, and increasingly heavy workload and stricter maintenance technical standards put higher requirements on the maintenance power supply.
the power supply devices in the current market are mainly divided into two types, namely an overhaul power supply panel and an overhaul power supply box, the overhaul power supply panel adopted in the field overhaul test can only provide a single 220V alternating-current power supply, the voltage cannot be adjusted, and a direct-current power supply cannot be provided. Meanwhile, the overhauling power disc cannot provide an obvious disconnection point, and the obvious disconnection point can be manufactured only by pulling out a power plug of an overhauling test instrument during field overhauling test. These disadvantages cause inconvenience to the service personnel in conducting standardized service test work. Therefore, the prior art can not meet the direct current power supply required by the debugging of the current circuit breaker and the direct current power supply of 66V-240V required by the low-jump low-pass test. In addition, the existing power supply device is low in efficiency generally, the safety can not be guaranteed, and some power supply devices can not even meet the enterprise standard of the national power grid company and can not meet the high-standard maintenance requirement.
Based on the above, an alternating current and direct current composite maintenance power supply device which can provide stable voltage-adjustable direct current and alternating current output of 66V-240V and has an obvious disconnection point is researched.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an AC/DC composite maintenance power supply device which can provide stable voltage-adjustable DC and AC outputs of 66V-240V and has an obvious disconnection point.
The invention adopts the following technical scheme: the utility model provides a compound maintenance power supply unit of alternating current-direct current, includes direct current output module, alternating current-direct current voltage regulation module, disconnection point module, direct current filter module, earth-leakage protector, voltmeter and three-phase power plug, disconnection point module, earth-leakage protector and alternating current-direct current voltage regulation module are connected gradually to three-phase power plug rear end, alternating current-direct current voltage regulation module specifically includes voltage regulator, first rectifier and a plurality of binding post, the voltage regulator input connects on the L and the N line of earth-leakage protector rear end, and voltmeter, first rectifier and a plurality of binding post are connected respectively to the voltage regulator output, and voltmeter, first rectifier and a plurality of binding post are parallelly connected each other, first rectifier output also is connected with binding post; the direct current filtering module comprises a filter, a second rectifier and a plurality of wiring terminals, the input end of the second rectifier is connected with the L line and the N line at the rear end of the leakage protector, the output end of the second rectifier is connected with the filter, and the output end of the filter is connected with the plurality of wiring terminals.
As one of the preferable modes of the invention, the invention further comprises a box body and a control panel arranged on the top of the box body, wherein the direct current output module, the alternating current and direct current voltage regulating module, the disconnection point module, the direct current filtering module, the leakage protector and the plurality of wiring terminals are integrated on the control panel, and the connecting wire of the three-phase power plug is wound on the wiring disc in the box body.
In a preferred embodiment of the present invention, the terminal tray is provided with a winding handle, and a waist-shaped hole is formed in a side surface of the box body, and the waist-shaped hole is used for accommodating a three-phase power plug and extending and retracting through the waist-shaped hole.
the invention further comprises a box cover, wherein the box cover is hinged to the top of the box body and covers the control panel, pulleys are arranged at the bottom of the box body, a telescopic pushing handle is arranged on the side face of the upper part of the box body, and a holding and pinching handle is arranged on the upper part of the box cover.
In a preferred embodiment of the present invention, the first rectifier and the second rectifier are integrated bridge full-wave rectifier modules of a KBPC3510 type.
in a preferred embodiment of the present invention, the regulator is a BTA41600B scr regulator, which has an input voltage of 220V, an output voltage of 10-240V, and a maximum output power of 4000W.
In a preferred embodiment of the present invention, the disconnection point module is a double-edge single-throw switch.
As one preferable aspect of the present invention, the filter is a pi-type filter having good filtering performance, good insertion loss characteristics, and high output power.
As one of the preferable modes of the invention, the electric leakage protector further comprises an indicator light, wherein the indicator light is connected between the disconnection point module and the electric leakage protector, and the disconnection point module can be ensured to be really disconnected by observing the indicator light.
In a preferred embodiment of the present invention, the earth leakage protector further includes a two-hole and three-hole socket connected to L, N, E lines at the rear end of the earth leakage protector.
The invention has the beneficial effects that: the box body is provided with the rectifier module and the voltage regulating module, so that alternating current and direct current voltage regulating output can be realized, the output port has obvious disconnection points, and in addition, the box body is reasonable in structural arrangement and the working efficiency of transformer maintenance operation is greatly improved.
Drawings
Fig. 1 is a schematic overall perspective view of the ac/dc hybrid maintenance power supply device of the present embodiment;
Fig. 2 is a sectional view of the ac/dc hybrid overhaul power supply device of the embodiment;
Fig. 3 is a side view of the ac/dc hybrid overhaul power supply device of the embodiment;
Fig. 4 is a schematic circuit diagram of the ac/dc hybrid overhaul power supply device of the embodiment;
Fig. 5 is a specific circuit diagram of the dc filtering module of the filter of the present embodiment.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 5 is a schematic diagram of a circuit structure of the dc filter module according to the present invention: when the required DC output voltage is 220V, the maximum current output is 10A, and the frequency is 50HZ, the capacitance and inductance are selected and calculated as follows:
The effective value of the load voltage is V2, then:
V2 (1.1-1.2) V1, and V2 (1.2V 1) are defined as follows
Taking the average current of the rectifying diode flowing through the diode as ID, then:
The maximum reverse voltage sustained by the diode is
A load resistance of
According to getting
Thus, the filter capacitance C was 0.4 μ F
as can be seen from the circuit diagram, when C1 and C2 are connected in parallel, C1+ C2 yields:
C1＝0.2μF
And then:
Referring to fig. 1-4, the ac/dc composite overhaul power supply device of the embodiment includes a dc output module, an ac/dc voltage regulation module, a disconnection point module, a dc filtering module, a leakage protector, a voltmeter and a three-phase power plug, wherein the disconnection point module, the leakage protector and the ac/dc voltage regulation module are sequentially connected to the rear end of the three-phase power plug, the ac/dc voltage regulation module specifically includes a voltage regulator, a first rectifier and a plurality of connection terminals, the input end of the voltage regulator is connected to L and N lines at the rear end of the leakage protector, the output end of the voltage regulator is respectively connected to the voltmeter, the first rectifier and the plurality of connection terminals, the voltmeter, the first rectifier and the plurality of connection terminals are connected in parallel, and the output; the direct current filtering module comprises a filter, a second rectifier and a plurality of wiring terminals, the input end of the second rectifier is connected with the L line and the N line at the rear end of the leakage protector, the output end of the second rectifier is connected with the filter, and the output end of the filter is connected with the plurality of wiring terminals.
It should be noted that, in the dc filtering module of this embodiment, the dc voltage is output by the second rectifier and is filtered by the filter, so that the stable 180-200V dc voltage can be obtained.
it can be understood that, in this embodiment, the voltage regulator adjusts the output voltage in real time, and the voltmeter detects the real-time voltage, and then the terminal at the output end of the first rectifier outputs the required dc voltage, which may be a dc voltage between 10V and 240V, and the terminals connected to the output end of the voltage regulator may output a stable ac voltage between 10V and 240V.
further, still include box 1 and the control panel 2 at installation box top, direct current output module, alternating current-direct current voltage regulation module, disconnected some modules, direct current filter module, earth-leakage protector and a plurality of binding post are all integrated on control panel 2, connecting wire 4 of three-phase power plug 3 is around the wiring dish 5 in box 1, wiring dish 5 is equipped with wire winding handle 6, the side of box 1 is equipped with waist type hole 11, waist type hole 11 is used for holding three-phase power plug 3 and stretches out and draws back through waist type hole 11, still includes case lid 7, the case lid articulates in box 1 top and covers control panel 2, and the bottom of box 1 is equipped with pulley 8, the upper portion side of box 1 is equipped with scalable promotion handle 9, and case lid upper portion is equipped with the handle 10 of holding between the fingers.
It should be noted that the box of this embodiment is equipped with pulley and pushing hands, and the thrust unit of being convenient for removes, and the wiring dish that is equipped with inside the box in addition uses with the waist type hole cooperation of box side, even if be convenient for accomodate and store unnecessary connecting wire, has increased construction operation distance again.
Preferably, the first rectifier and the second rectifier are integrated bridge full-wave rectifier modules of KBPC3510 type, the voltage regulator is a BTA41600B type silicon controlled rectifier voltage regulator, the input voltage is 220V, the output voltage is 10-240V, the maximum output power is 4000W, the disconnection point module is a double-edge single-throw switch, and the filter is a pi-type filter, so that the filter has good filtering performance, good insertion loss characteristic and high output power.
Preferably, still include the pilot lamp, the pilot lamp is connected between disconnection point module and earth-leakage protector, can ensure the true disconnection of disconnection point module through observing the pilot lamp, still includes diplopore and three hole sockets, diplopore and three hole sockets are connected on the L, N, E lines at earth-leakage protector rear end, can connect the grid equipment that operating voltage is 220V alternating voltage through diplopore and three hole sockets.
the above description is only for the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a compound maintenance power supply unit of alternating current-direct current which characterized in that: the intelligent protection device comprises a direct current output module, an alternating current-direct current voltage regulation module, a disconnection point module, a direct current filtering module, a leakage protector, a voltmeter and a three-phase power plug (3), wherein the rear end of the three-phase power plug (3) is sequentially connected with the disconnection point module, the leakage protector and the alternating current-direct current voltage regulation module, the alternating current-direct current voltage regulation module specifically comprises a voltage regulator, a first rectifier and a plurality of wiring terminals, the input end of the voltage regulator is connected to L and N wires at the rear end of the leakage protector, the output end of the voltage regulator is respectively connected with the voltmeter, the first rectifier and the plurality of wiring terminals, the voltmeter, the first rectifier and the plurality of wiring terminals are; the direct current filtering module comprises a filter, a second rectifier and a plurality of wiring terminals, the input end of the second rectifier is connected with the L line and the N line at the rear end of the leakage protector, the output end of the second rectifier is connected with the filter, and the output end of the filter is connected with the plurality of wiring terminals.
2. The AC-DC composite overhaul power supply device according to claim 1, wherein: still include box (1) and control panel (2) at installation box top, direct current output module, alternating current-direct current voltage regulation module, disconnection point module, direct current filter module, earth-leakage protector and a plurality of binding post all integrate on control panel, connecting wire (4) of three-phase power plug (3) are around wiring dish (5) in box (1).
3. The AC-DC composite overhaul power supply device according to claim 2, wherein: the wiring plate (5) is provided with a winding handle (6).
4. the AC-DC composite overhaul power supply device according to claim 1, wherein: the first rectifier and the second rectifier are integrated bridge full-wave rectifier circuit modules of KBPC3510 type.
5. The AC-DC composite overhaul power supply device according to claim 1, wherein: the voltage regulator is a BTA41600B type silicon controlled rectifier voltage regulator, and has an input voltage of 220V, an output voltage of 10-240V and a maximum output power of 4000W.
6. The AC-DC composite overhaul power supply device according to claim 1, wherein: the disconnection point module is a double-edge single-throw switch blade.
7. The AC-DC composite overhaul power supply device according to claim 1, wherein: the filter is a pi-type filter.
8. The AC-DC composite overhaul power supply device according to claim 1, wherein: the electric leakage protector further comprises an indicator light, and the indicator light is connected between the disconnection point module and the electric leakage protector.
9. The AC-DC composite overhaul power supply device according to claim 1, wherein: the anti-leakage protector further comprises a double-hole socket and a three-hole socket, wherein the double-hole socket and the three-hole socket are connected to an L, N, E wire at the rear end of the anti-leakage protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968234.8A CN110544944A (en) | 2019-10-12 | 2019-10-12 | AC/DC composite overhaul power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968234.8A CN110544944A (en) | 2019-10-12 | 2019-10-12 | AC/DC composite overhaul power supply device |
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| Publication Number | Publication Date |
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| CN110544944A true CN110544944A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910968234.8A Pending CN110544944A (en) | 2019-10-12 | 2019-10-12 | AC/DC composite overhaul power supply device |
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| CN (1) | CN110544944A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025087A (en) * | 2019-12-31 | 2020-04-17 | 安徽东方旭电气设备有限公司 | Novel distribution network circuit abnormal alarm device |
| CN112886703A (en) * | 2021-04-01 | 2021-06-01 | 国网安徽省电力有限公司亳州供电公司 | Movable voltage-adjustable AC-DC UPS composite power supply system and device |
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2019
- 2019-10-12 CN CN201910968234.8A patent/CN110544944A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025087A (en) * | 2019-12-31 | 2020-04-17 | 安徽东方旭电气设备有限公司 | Novel distribution network circuit abnormal alarm device |
| CN112886703A (en) * | 2021-04-01 | 2021-06-01 | 国网安徽省电力有限公司亳州供电公司 | Movable voltage-adjustable AC-DC UPS composite power supply system and device |
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