CN106655156A - Automatic load control terminal switching device of dual-power-supply user - Google Patents
Automatic load control terminal switching device of dual-power-supply user Download PDFInfo
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- CN106655156A CN106655156A CN201610904302.0A CN201610904302A CN106655156A CN 106655156 A CN106655156 A CN 106655156A CN 201610904302 A CN201610904302 A CN 201610904302A CN 106655156 A CN106655156 A CN 106655156A
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- 238000004891 communication Methods 0.000 claims abstract description 27
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013642 negative control Substances 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- H02J3/005—
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- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses an automatic load control terminal switching device of a dual-power-supply user. A main power supply terminal arranged at a main body (10) is connected with a main contact of a relay by a voltage transformer PT and a main supply circuit switch S1 and an auxiliary power supply terminal is connected with an auxiliary contact of the relay by the voltage transformer PT and an auxiliary circuit switch S2; the relay is connected with a voltage output port connected with a load control terminal; and a tripping coil TQ is connected with the auxiliary circuit switch S2 and the relay. An electric energy meter A communication module a is connected with the auxiliary circuit switch S2 and the relay; an electric energy meter B communication module b is connected with the main supply circuit switch S1 and the relay. The automatic load control terminal switching device has advantages of simple structure, low cost, low power consumption, convenience in installation, greatly reduced maintenance staff workload, saved enterprise costs and reduced field work security risk.
Description
Technical field：
The present invention relates to a kind of dual power supply customer charge control terminal automatic switching control equipment, belongs to electric energy acquisition O＆M technology neck
Domain.
Background technology：
" all standing, full collection, control in full " is the construction object of State Grid Corporation of China's power information acquisition system, spatial load forecasting end
Hold for carrying out power information Real-time Collection and monitoring to user, load control terminal is divided to two kinds of phase three-wire three and three-phase and four-line,
Phase three-wire three acquisition terminal being adopted as dual power supply user, its operating voltage is 3*100V, with what is required power supply reliability more
Improve, customer quantity may proceed to increase.The power supply mode is to the puzzlement that power information acquisition system is brought：Load control terminal
Only it is connected on the PT of user's main power supply, once being switched to stand-by power supply terminal will result in terminal power failure, causes user's electric energy
Table cannot be gathered, and while causing index to decline, also have impact on the development of other business such as remote bill control, load management, scene
O＆M maintenance also increases the O＆M cost and field work safe risk of enterprise.
The most volume of existing customer charge control terminal automatic switching control equipment is big, install loaded down with trivial details, high cost, is not appropriate for
Application is installed on a large scale, therefore urgently studies a kind of load control terminal automatic switching control equipment that can meet work in every requirement.
The content of the invention：
It is an object of the invention to overcome above-mentioned existing not enough and provide a kind of simple structure, with low cost, low in energy consumption, installation
It is convenient, maintainer's workload is greatly decreased, entreprise cost is saved, reduce the dual power supply customer charge of field work safe risk
Control terminal automatic switching control equipment.
The purpose of the present invention can be reached by following measure：A kind of dual power supply customer charge control terminal automatically switches
Device, it includes body, it is characterised in that body is provided with main power supply binding post A1, main power supply binding post A2, master
Power supply source binding post A3, auxiliary power supply source binding post B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3, electricity
Energy Table A communication module connection terminal a1, a0, electric energy meter B communication module connection terminal b1, b0, it is defeated that the front end of body 10 is provided with U phases
Go out terminal, V phase output terminals, W phase output terminals, main confession contactor S1, auxiliary confession contactor S2, main power supply terminals
Sub- A1 is connected with main power supply voltage secondary side a, and main power supply binding post A2 is connected with main power supply voltage secondary side b
Connect, main power supply binding post A3 is connected with main power supply voltage secondary side c；Auxiliary power supply source binding post B1 and auxiliary power supply source
Voltage secondary side a is connected, and auxiliary power supply source binding post B2 is connected with auxiliary power supply source voltage secondary side b, auxiliary power supply source wiring
Terminal B3 is connected with auxiliary power supply source voltage secondary side c；U phase output terminals are connected with load control terminal input power u, V phases
Lead-out terminal is connected with load control terminal input power v, and W phase output terminals are connected with load control terminal input power w；Electricity
Can Table A communication module connection terminal a1, a0 connection electric energy Table A communication module a, electric energy meter B communication module connection terminal b1, b0
Connection electric energy meter B communication module b；This is provided with vivo power-switching circuit, and power-switching circuit includes voltage transformer pt, relay
Device, main power supply binding post A1, main power supply binding post A2, main power supply binding post A3 are connected by voltage transformer pt
Meet main confession contactor S1, three lead-out terminals of main confession contactor S1 connect respectively the main contacts 1 of relay, main contacts 2,
Main contacts 3, auxiliary power supply source binding post B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3 are by another electricity
Pressure transformer PT connects auxiliary confession contactor S2, and three lead-out terminals of auxiliary confession contactor S2 connect respectively the auxiliary of relay and touch
Point 4, auxiliary contact 5, auxiliary contact 6, the main contacts 1 of relay, auxiliary contact 4 and main contacts 2, auxiliary contact 5 and main contacts 3, auxiliary contact 6
Respectively voltage output 7, voltage output 8, voltage output 9 are connected by selecting switch, the connection of voltage output 7 U phases are defeated
Go out terminal, the connection V phase output terminals of voltage output 8, voltage output 9 is connected with W phase output terminals；Breaking coil TQ is positive and negative
Pole is connected on the loop between auxiliary confession contactor S2 and auxiliary contact 5, the auxiliary contact 6 of relay；Electric energy Table A communication module connects
Connecting terminal a1, a0 are connected on the loop between auxiliary confession contactor S2 and auxiliary contact 4, the auxiliary contact 5 of relay；Electric energy meter B
Communication module connection terminal b1, b0 are connected to the loop between main confession contactor S1 and main contacts 1, the main contacts 2 of relay
On.
The present invention can produce compared with the prior art following good effect：
The present invention can timely and effectively solve dual power supply user's negative control terminal power supply switching problem, it is to avoid non-faulting reason is made
Into terminal stop transport.It has：
1. simple structure, with low cost, and device main components are relay, by relay breaking coil monitor in real time two
The voltage signal of road power supply, and send control signal in real time according to actual conditions, realizes the automatic of main power supply and auxiliary power supply source
Switching.
2. maintainer's workload is greatly decreased, entreprise cost is saved, field work safe risk is reduced.Because user falls
Lock is operated, and acquisition terminal has a power failure cannot cannot realize data acquisition with master station communication, terminal, have influence on miscellaneous service application.Adopt
Collecting system main website shows acquisition abnormity, and maintainer must ascertain the reason to scene.After the present invention, after user's grid switching operation
Terminal supplying power switches therewith, still normal work, and maintainer need not be to on-site maintenance.
3. automatic switching control equipment main devices be relay, small power consumption（<1W）, low cost, convenient and flexible installation can be with
It is installed in wall, metering cabinet, disclosure satisfy that the requirement of work on the spot, without the need for transforming switchgear house, investment reduction is easy to
Widespread adoption.
Description of the drawings：
Fig. 1 is the external structure schematic diagram of the present invention；
Fig. 2 is principle of the invention wiring diagram.
Specific embodiment：
Embodiments of the present invention are elaborated below in conjunction with the accompanying drawings：
Embodiment：A kind of dual power supply customer charge control terminal automatic switching control equipment（Referring to Fig. 1, Fig. 2）, it includes body 10,
Body 10 is provided with main power supply binding post A1, main power supply binding post A2, main power supply binding post A3, auxiliary power supply source
Binding post B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3, electric energy Table A communication module connection terminal a1,
A0, electric energy meter B communication module connection terminal b1, b0, it is defeated that the front end of body 10 is provided with U phase output terminals, V phase output terminals, W phases
Go out terminal, main confession contactor S1, auxiliary confession contactor S2, main power supply binding post A1 and main power supply voltage secondary side a
It is connected, main power supply binding post A2 is connected with main power supply voltage secondary side b, main power supply binding post A3 and main confession
Supply voltage secondary side c is connected.Auxiliary power supply source binding post B1 is connected with auxiliary power supply source voltage secondary side a, auxiliary power supply source
Binding post B2 is connected with auxiliary power supply source voltage secondary side b, auxiliary power supply source binding post B3 and auxiliary power supply source voltage secondary side c
It is connected.U phase output terminals are connected with load control terminal input power u, and V phase output terminals are electric with load control terminal input
Source v connects, and W phase output terminals are connected with load control terminal input power w.Electric energy Table A communication module connection terminal a1, a0 connect
Meet electric energy Table A communication module a, electric energy meter B communication module connection terminals b1, b0 connection electric energy meter B communication module b.
Power-switching circuit is provided with body 10（Referring to Fig. 2）, power-switching circuit include voltage transformer pt, relay
Device, main power supply binding post A1, main power supply binding post A2, main power supply binding post A3 are connected by voltage transformer pt
Meet main confession contactor S1（DZ47-D6A）, three lead-out terminals of main confession contactor S1 connect respectively the main contacts of relay
1st, main contacts 2, main contacts 3, auxiliary power supply source binding post B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3 lead to
Cross another voltage transformer pt and connect auxiliary confession contactor S2（DZ47-D6A）, three lead-out terminals of auxiliary confession contactor S2
Connect auxiliary contact 4, auxiliary contact 5, the auxiliary contact 6 of relay respectively, the main contacts 1 of relay, auxiliary contact 4 and main contacts 2, auxiliary touch
Point 5 and main contacts 3, auxiliary contact 6 connect voltage output 7, voltage output 8, voltage output 9 by selecting switch respectively,
Voltage output 7 connects U phase output terminals, the connection V phase output terminals of voltage output 8, voltage output 9 and W phase output terminals
Son connection.Breaking coil TQ both positive and negative polarities are connected to returning between auxiliary confession contactor S2 and auxiliary contact 5, the auxiliary contact 6 of relay
Lu Shang.Electric energy Table A communication module connection terminal a1, a0 are connected to auxiliary contact 4, the auxiliary contact of auxiliary confession contactor S2 and relay
On loop between 5.Electric energy meter B communication module connection terminal b1, b0 are connected to main confession contactor S1 and the master of relay touches
On loop between point 1, main contacts 2.
Main power supply Jing after PT conversions, is accessed by main power supply binding post A1, A2, A3 by main confession contactor S1,
Auxiliary power supply source Jing after PT conversions, is accessed by auxiliary power supply source binding post B1, B2, B3 by auxiliary confession contactor S2, electricity after conversion
Press as 3*100V, power-switching circuit is mainly by relay breaking coil TQ, the main contacts 1 of relay, main contacts 2, main contacts
3, the auxiliary contact 4 of relay, auxiliary contact 5, auxiliary contact 6 constitute, automatic switching control equipment by voltage output 7,8,9 by U, V,
W phase output terminals access load control terminal.When user is powered by main power supply, breaking coil TQ is monitored less than voltage, after
Appliance contact is failure to actuate, and terminal is powered by the main contacts 1 of relay, main contacts 2, main contacts 3；When user's power supply is by main power supply
When switching to auxiliary power supply source and powering, breaking coil TQ is monitored to voltage, relay contact action, terminal by relay main contacts
1st, main contacts 2, main contacts 3 are changed to the auxiliary contact 4 of relay, auxiliary contact 5, auxiliary contact 6 and powered, it is possible to achieve terminal online with
And the collection to 2 electric energy meters.
Although above with reference to the accompanying drawings table is described in detail to embodiments of the invention, this specific embodiment party is not limited only to
Formula, various equivalents, deformation process that those skilled in the art is carried out according to this concrete technical scheme, also in the protection of the present invention
Within the scope of.
Claims (1)
1. a kind of dual power supply customer charge control terminal automatic switching control equipment, it includes body（10）, it is characterised in that body
（10）It is provided with main power supply binding post A1, main power supply binding post A2, main power supply binding post A3, auxiliary power supply source to connect
Line terminals B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3, electric energy Table A communication module connection terminal a1, a0,
Electric energy meter B communication module connection terminal b1, b0, the front end of body 10 is provided with U phase output terminals, V phase output terminals, W phase output terminals
Sub, main confession contactor S1, auxiliary confession contactor S2, main power supply binding post A1 is connected with main power supply voltage secondary side a
Connect, main power supply binding post A2 is connected with main power supply voltage secondary side b, main power supply binding post A3 and main power supply
Voltage secondary side c is connected；Auxiliary power supply source binding post B1 is connected with auxiliary power supply source voltage secondary side a, auxiliary power supply source wiring
Terminal B2 is connected with auxiliary power supply source voltage secondary side b, and auxiliary power supply source binding post B3 is connected with auxiliary power supply source voltage secondary side c
Connect；U phase output terminals are connected with load control terminal input power u, V phase output terminals and load control terminal input power v
Connection, W phase output terminals are connected with load control terminal input power w；Electric energy Table A communication module connection terminal a1, a0 connect
Electric energy Table A communication module a, electric energy meter B communication module connection terminals b1, b0 connection electric energy meter B communication module b；Body（10）
Power-switching circuit is inside provided with, power-switching circuit includes voltage transformer pt, relay, main power supply binding post A1, master
Power supply source binding post A2, main power supply binding post A3 connect main confession contactor S1, main power supply by voltage transformer pt
Three lead-out terminals of way switch S1 connect respectively main contacts 1, main contacts 2, the main contacts 3 of relay, auxiliary power supply source terminals
Sub- B1, auxiliary power supply source binding post B2, auxiliary power supply source binding post B3 connect auxiliary confession circuit by another voltage transformer pt
Switch S2, three lead-out terminals of auxiliary confession contactor S2 connect respectively auxiliary contact 4, auxiliary contact 5, the auxiliary contact 6 of relay, after
The main contacts 1 of electrical equipment, auxiliary contact 4 and main contacts 2, auxiliary contact 5 and main contacts 3, auxiliary contact 6 are respectively by selecting switch connection electricity
Pressure delivery outlet 7, voltage output 8, voltage output 9, the connection U phase output terminals of voltage output 7, the connection V of voltage output 8
Phase output terminals, voltage output 9 is connected with W phase output terminals；Breaking coil TQ both positive and negative polarities are connected to auxiliary confession contactor S2
On the loop between auxiliary contact 5, auxiliary contact 6 with relay；Electric energy Table A communication module connection terminal a1, a0 are connected to auxiliary confession
On loop between auxiliary contact 4, the auxiliary contact 5 of contactor S2 and relay；Electric energy meter B communication module connection terminal b1, b0
It is connected on the loop between main confession contactor S1 and main contacts 1, the main contacts 2 of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904302.0A CN106655156A (en) | 2016-10-18 | 2016-10-18 | Automatic load control terminal switching device of dual-power-supply user |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904302.0A CN106655156A (en) | 2016-10-18 | 2016-10-18 | Automatic load control terminal switching device of dual-power-supply user |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655156A true CN106655156A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610904302.0A Pending CN106655156A (en) | 2016-10-18 | 2016-10-18 | Automatic load control terminal switching device of dual-power-supply user |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798840A (en) * | 2021-02-05 | 2021-05-14 | 国网河南省电力公司濮阳供电公司 | Power supply monitoring system suitable for rural motor-pumped well communication small electric quantity transformer area and working method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10201134A (en) * | 1997-01-10 | 1998-07-31 | Toko Electric Co Ltd | Power-supply changeover circuit |
| CN102025191A (en) * | 2010-11-29 | 2011-04-20 | 江苏省电力公司兴化市供电公司 | Automatic switching device for double power supplies of power load management terminal |
| CN104242469A (en) * | 2014-10-17 | 2014-12-24 | 成都四为电子信息股份有限公司 | Comprehensive railway power monitoring device |
| CN204858728U (en) * | 2015-08-10 | 2015-12-09 | 常熟开关制造有限公司(原常熟开关厂） | Two power supply automatic switching devices, dual power supply system |
-
2016
- 2016-10-18 CN CN201610904302.0A patent/CN106655156A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10201134A (en) * | 1997-01-10 | 1998-07-31 | Toko Electric Co Ltd | Power-supply changeover circuit |
| CN102025191A (en) * | 2010-11-29 | 2011-04-20 | 江苏省电力公司兴化市供电公司 | Automatic switching device for double power supplies of power load management terminal |
| CN104242469A (en) * | 2014-10-17 | 2014-12-24 | 成都四为电子信息股份有限公司 | Comprehensive railway power monitoring device |
| CN204858728U (en) * | 2015-08-10 | 2015-12-09 | 常熟开关制造有限公司(原常熟开关厂） | Two power supply automatic switching devices, dual power supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798840A (en) * | 2021-02-05 | 2021-05-14 | 国网河南省电力公司濮阳供电公司 | Power supply monitoring system suitable for rural motor-pumped well communication small electric quantity transformer area and working method |
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Application publication date: 20170510 |
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